Document E4GnX3r406eE0n6wV5Byx1dL

FILE NAME: Phenolic Resins (PHR) DATE: 1962 DOC#: PHR044 DOCUMENT DESCRIPTION: Unpublished Report - Kaylo Improvement Progra Progress Report, Jan-Feb-Mar, 1962; from Owens-Corning Fiberglas File r r O KAYLO raPiTOVLTCIrr PROGRA.V PROGRESS REPOR? JA].TARY - FEBRUARY -MARCE, 19&2 I v? 8 CONTENTS QNase F ib e r s S tress Corrosion Form ulation Studies Coro M a te ria l Bond&d A g g re g ates Raw M a te r ia le In p a c t Machine 36" Pouring Device In c re a se Opening Between Core and S h e ll Kaylo=FJ.ad A luninua Ivo Layer High Tem perature Pipe In s u la tio n Reduce o r E lim in ate Dust on Kaylo Block B oiler In su latio n Process Shrinkage r s 1 , 0LA5S FIBERS (a) Coatings of various typos have been trie d fo r a p ro tectiv e covering fo r g la ss fib e rs , to reduce or elim in ate a t t r i t i o n through the autoclave p ro c e ss. Soso o f th ese tr ie d by G eneral R esearch a re : (1) Vinyl C hloride P ln s tis o l - E x c e lle n t, but i s high in c h lo rid e and i s c o s tly . (2) Vinyl A cetate S55 - C oating disappeared d u rin g process fib e r attacko (3 ) Urea Formaldehyde - P rac l8o - C oating d isap p eared , but f i b e r a p p e a re d to be i n good c o n d itio n . No a d h esio n to KaylOo (*0 S h e ll Expoxy 528 - T race o f o o a tin g l e f t a f t e r p ro c e s s in g . F ib e r appeared In good c o n d itio n . High c o s t. (5 ) Dow P o ly e try c r.e - PS? - R esin d is a p p e a r e d . Being th e ro o p la js tio nay have been absorbed by the K aylo. (6 ) Helen:-ire Helene - Sane r e s u l t s a s 2r3, fo rm ald eh y d e, (7 ) HI Temp Phen o l i c , Mon s a n to ^ 1013 - E x c e lle n t r e s u l t s . S lig h tly s u p e rio r to Tybon very high coot0 (8 ) Novels}: Type Fb e n o iic . Acme X-^ 7 p | * Poor r e s u l t s when coopared to Tybon 3^lSo (9) " Newark P la n t - Poor r e s u l t s when compared *\Ath Tybon"3^1^o (10) H elasinc - Phenolic Copolymer - Newar k P la n t - P o o r r e s u l t s when compared w ith Tybon 3^1-8 (1 1 ) Gener a l M ills P olyanl d - Hot M elt - R esin absorbed sway fro a f ib e r in to Kaylo m atrix d u rin g process. F ib e r appeared in good condition, . . The fo llo w in g s p e c if ic a tio n was s e t fo r a c o a tin g th a t gave the b e st r e s u l t s , and which was low i n c h lo r id e c o n t e n t . I t was Tybon 3*+lS P h en o lic R e s in (A m erican - K a ria tta .) a t 62/ so lid s , I t v a s u sed on K75 1 /0 y a rn a t 636 s i n e , w ith kCQo nom inal i g n i t i o n lo o a , w ith 33~i*5*> rangCo There a re a p p ro x im a te ly fo u r (*0 b e a d s /in c h o f length, There were v a rio u s runs cade w ith v a ria tio n s in p ercen t o f oo atin g r a n g in g from 38.5 to 57^1 chopped le n g th s a t 1- 1/ 2" to 211, r " <fo 1- i r F A (' t ' The maiii re a s o n s f o r u s in g Tyboa JjAl8 P h en o lic R esin o re : (1 ) Lover co st (2) S u rv iv al of au to clav in g process . ( 3) Low c h lo r id e c o n te n t (0 B eading a b i l i t y (5 ) Good a d h e re n c e to K aylo body (b ) T e e t r u n s v e r 6 made w ith v a r io u s fo rm u la tio n s fo r d if f e r e n t p e rc e n ta g e s o f co ated f ib e r s , which gave a s im ila r v arian ce in g lass percentages; d iffe re n t types of fib e rs; m ultiple lengths of fib e rs; p o u rin g method v o ria n i-e so I n th e J a n u a ry t e 6t e th e v in y l c h lo r id e c o ate d f i b e r s gave s u p e r io r t e s t r e s u l t s to any o f th e p h e n o lic f i b e r s . Some o f the f ib e r s , c o a tin g s, etc, used a re ; (1) V inyl c h lo rid e - 2" length (2) Phenolic 1 -3 A " length (3) Phenolic - 1 -1 /2 " length (*0 C om binations o f (2) and (3) (5 ) S p rc u t-h 'a ld ro n opened V3 a n o s it e a s b e s to s ( 6) C om binations o f v in y l c h lo rid e ana Sprout-V aldron opened W3 a s b e e t o s o (7) Com binations o f Phenolic R esin and Sprout-V aldron opened W3 a c o n ite ,, Runs u sin g above v a ria tio n s o f coated g la ss fib e rs and dry m illed opened W3 a m o site w ere cade u s in g d i f f e r e n t d e s ig n s o f th e 36" p o u rin g d e v ic e ; The p resen ce o f a i r h o le s and s l i p p la n e s , fo rced by clo g g in g o f th e n o z slo , a t too fre q u e n t in t e r v a l s , was th e main d e fe o t and was the te c h n ic a l p ro b le a to be overcome,, A com bination o f 9* opened a c o s ite ; 9^ c h ry s o tile j and 3^ vinyl coated g la s s f i b e r , f o r a t o t a l o f 21^ o f f i b e r , gave a-maximum o f e ig h t ( 8) d ro p s ; an a v e ra g e o f 5S and 6e8 d ro p a 0 The o r i e n t a t i o n o f th e f i b e r van goode The 36" Bauer H ill was red esig n ed fo r a dry m ill b a s is , fo r opening V3 and o th e r a o o s it e and c h r y s o t i l e g ra d e s o f a s b o s to s o V a rio u s ty p e s o f co ated f ib e r s were u sed , both ph en o lic and vinyl The v in y l c o a tin g gave a more p lia b le g la s s f i b e r , which r e s u lte d in le s s c lo g g in g o f th e pouring n o z z le s , th an was ex p erien ced from the s t i f f phenolio covering V inyl c o a te d g lo s s f i b e r s w ere u sed i n many o f th e F e b ru a ry and e a r ly Haroh t e s t t r i a l s 0 These re e u lts are ehsm arizod: (l) I t waa found t h a t a f i b e r c o n te n t o f l 8 to 2&%% o f y h ic h a t l e a s t 15^ b ased on b a tc h w e ig h t, v as d ry m ille d opened a n o s ite o r a r,o s it plus coated g la ss fib e r , produced a s ig n ific a n t in crease In the drop te s t re s u lts ,, (2 ) A lthough r e s is ta n c e to breakage in the drop t o s t was m arkedly I n c r e a s e d by th e I n c l u s i o n o f 5 to 7% o f p h e n o lic c o a te d f i b e r , th e s e amounts o f the s t i f f fib e r c o n trib u te d to form ing d i f f i c u l t i e s , th a t re s u lte d in a p o o rly c o n so lid a te d body and low modulus o r ru p tu re v a lu e s . The varc vas g e n erally unacceptable, in s p ite of ra th e r high drop te s t values,, *f -2 - r\ a stieo sM e^ ff ? r . V?w e a s i l y obcervod i n th e p r o d u e t. ro TM d f l b " r r<T U e i l a TM B a=c>QIlt o f vir^ 1 f i b e r m *y * * , in th . w h , t0 ro^Jltod in 00 advereo effects, pziccas or^?od" t 0flte,i flbi,r- drop than s i ^ \ Z t " d i i t r ^ ^ ^ " " aTorae o f 1*3 or,i G raid Tio K ^ c i l e i f v T ! ! " * ^ h 0 r " n n . "TM O rle a n s c e n t used In those ah ip o cats ,,si" ~ t u r n e d to B e r l i n . The e qu ip - ( 2) t v " r \ U ' " Cc" l!rc l'a tru c k v ) u ra ^ n R apids - C o c s e r c ia l LTL tr u c k Abuee in tr a n s it v a rie d , in nanner o f ,, u ip n e n t, r a th e r then d is ta n c e . C . (U i o ^ e a ^ S s ! 1 K>a' C<irt0DS * oo ev id en ce o / h o r S n t i i f 1^ ! I ^ by droppingo ^ ^ ~ d a ^ s to cartons 0 > ! J i r r,V % > r e t '1`~I tD B e r l l " ` I a r r t ab u se on LrnL g p .^. ' cCL- t3' t^oa ^p al lll e tMi z e^d da` nda t mi ',ertahl eoa ^tra n"o t o r i s l loaded m on c u ttin g in to carto n s and c r a c k y ^ U sh t* ^ ^ t o n a loaded on a id e la rg e s iz e 1 ? i j 1/7 had c o n s id e r a b le danage - LTL o h ip c e n to 1 " 1^2 vore f o r a t o t a l 5 2 08& The r e s u l t s v & r :' * ^ Bf r ^i n s h i F a e n ts , 599 piece*, ' 5jJCludcd CDP tito re v a r e , (1 ) Carey-Teap - H ighest dasa-r C3> p- ^ t i o o second h i g W d a ra * . (^0 01_X66 f i b e r r e in f e r ^ ^ - 'w r f 4 <** , (5 ) Sprout Waldron o p e ^ ,, 1 ^ % ? * * * * " * T S riib lM ^ w *? OO o 3- On th e s e e h io c e n ta th e - a 15 , 5-,' to New O rle a n s: Va7 % ? l ?0 t a l , v a re shipF-ed to 7 6 0^ r e t u r n f r o - Nav O ri e a r s To e l s e d e f e c tiv e : . G ranrllle to B erlin. 3x1 x l 6xl 8 x 1-1/2 12 x 1-1/2 153 pcs 211 tl I 87 II Zb n Zb 599 pc a 0 2 5 .5 / 3 5 .# 3 1 .2 / boOZ JjoO / 100/ T o ta l p ie c e s shipped were 11340 * - E t S & J T " & 4*4 sooe v a ar marks on both a id e s o f c a r t o n . r ` ^ C artons very d e f in ite ly shoved the In te r fo r m a tio n le "*' on a s b e s to s , It, th e f o r n u l a t l c a d l h o M l c ^ l M Bf U9r 11111 Fe;,od' ^ v a i, a fte r inspection out of the t o / l * L ^ D" ^ S 12 x 1- 1/2 8 x 1-1/2 ?* 1 80cCtt 3 3 .# 17o5* l i e 135 relatld01^ T o l s ^ l f ^ n ^ ^ 12 x 1 -1 /2 8 x 1 - 1/2 ?x 1 kx 1 68,,lS 8. 5/ l b 0$% 8 ,# of t o S iu areet:tio ^ e1cr P: c^ I<towd teif - 12 x l l /2 8 x 1- 1/2 ? x 1 * x 1 25. 0/ 3, 1/ 5c%- 3.1/ . .1. excepU or-aH ^ h a ^ ' a t j ^ b / b e - n / h f r i ` ' n t i m i g h most o f th e ware s u ffe r e d reflected the I s / v e o e c t S i e " " ^ , 1 , " "/ ? =* P * r o u t s . BeDt - * <* to = r a n , l l u ! CKef : T r : I S / S L r S : ftrrt U (d ) A Kaylo P ro d u ct In n ro v p -a n f , aa York, T u esd ay , March 20, 196 2 0 ^ v *a a --e " C 1 S Waa h eld Kow fo rm u la tio n would be p la c e d I n nrodimM &* * ^e re t h a t th e Improved % 1962, and I t wan, The 35"' R i u e ^ V l u a t ` 5 S e rU n P la n t, on March 21, dry tallied a ro e lte and o th er ^ a d u n p ln f S u f f i c i e n t v in y l c o a te d x l '-fn f .,y / d ^ e c t l y i n t o th e h y d ro r tilp o r, w s i n r o n a u K t l c n : 2, S: ^ o d 10.5 per. me dent annunt'vaa t *> # f ' A * ^ t y van act at amount could bo had and m lr .ta ln o d ' 500 lb =". th in h as oontxnued in p ro d u c tio n w ith th e a V i- 1\ . ^-n^ a-'^-nS l i n e a 0 The p la n t Sone p ro b le m v e ro ^ e n c o u n te r^ tu t ^ ^ ^ le a s t to the p o in t where th ey ir e not In * ! ' 8t1^ ove"coae, a t the vinyl coated g lass fib e rs vc-e secured l a a 3i i i c a t l ^ o C u tte r a f o r len g th f i r s t usc-d0 ` ^ d * choP tho f i b e r to th e 1 -1 /2 " (e ) The G en eral P m in - r ii t -.*-- * c o m i t t e c , to proceed a s . u l c k l ^ a s ^ s m u ' t T d l 01 in stru c t'!'1 th e glana f ib e r s th a t would; ^ p o ssib le to dieoover a co atin g fo r ( 2) m v o 't l 3 C 3 t l y **" ^ 1 'W o r l d . c o a tin g f , S f ,tfc5, 6`- r a d d i t i o n a l f l . a b i l i t y COn',a in le 3 s c h lo r id e ^ W Hare a ra p id d ry in g r a t e , K a y l o ^ t c r i r e ^ 60"^ 68 f t h p r sra,a o f UeijlS c o a te d g la s s f i b e r s in C 316 Cl) DiscontiJTUC th e Ufii n f fii/b , TM a . replacing S ^ T i C ^ S t " fib *rS' general p / d u c t - s I t e f PreSen!: K laas fib B r ' * V - t i l l t i n g t e a m , or glaas v a stP to by (3 ) and^dry L Y f Y S a U Y Y *" 31"117 * o t e la b s " " b a s p r e p a r e and ( ^ L Y e Y a a a r c c , v i t h lo w e st f r e P g h t =0. ^ a t B a r r la St `'n th ro u g h ,, ,, o f ^TM ^ /* Fib^ * * S ires the M ^ e s t Y S i r Y d Y s Y r e l Y t V coat h a n d lin g abuse b e fo re c w t ^ r b ^ I k S ^ e U '" f l b r o > "t l c h S tern e. re s u lts, take, atod su Y f a0t r U percentages o f . / w -5 - 2 STRESS CORROSTor: c o m p e tito r s ' c e a w r a b l f c h i o r i d f c o J I t e n t i 1^ " "^ Pf ^ 1c t v i t h a lowGr than ' ' . e u l a t i o n , f o r u se i n combat-* t , * I to be th e le a d e r in h e a t i u - o r v e a s e le ; when such a t t a c h i s a g ^ ra v a to d b y th n eU ltllo G i: 8 te e l P1** p a rtic u la rly sea water,, S * d the Presence of m oisture, o f Drc F o n tan a o f Ohio S ta te r e ^ r r f u end p ro d u c ts , p a r t i c u l a r l y d' I n v euhraean ean trG ,o ttion gs e^th e r w* *ith *th e se P?Q c h l o r i d p re s e n t in Kaylo u r i . : r X P7 o " r t r Z ! L n ? p 0 B t' ' PT I>le d id o t * would be a c c e p ta b le as a h e : t k Per0ODnel did s t a t e t h a t Kaylo In the fo ra of aodlun s ilic a te vere p re a eiw S tid n U ss s t " 1' i f " In h ib ito r f o l l o v a lo n g w ith S o c t ^ r e o - c s - i - a t l i ' r ' t d r'J t .,0t p r cl' `-'-r- ' r , would ~ y p e i p l T i S L u d ^ ' a d i t u f d th e iJ1>`i b i t o r - * s ilic a te , that th ro u g h th e pro c c ^ f J TMv. i e , 7 r ro b in 1J ^ th<! th is can be a . b e a r a b l stag e and fo llo v e " " " t j e i t h e r ' f L ^ r ^ i p c ' o ? L ? c COatll,g' , t0 " s r :- t Eor coated m a te ria lj ^ f o r e ^ - D * <>' ir s :.- ( e ) Some com " P la c ite 7122" on sa n ie s. C arbide C hem icals in c lu d e d , use a m a te ria l c a lle d in clu d in g Kaylo, i t c o s t s S0o50 a ' T? hhe uupopfei rr tre m8p^e rai tu1reb elriocrei t is only +82*de c re e d F a rfd ' aa sp pKl i cBaotnieo,n hcaos sat tta^mp enire!arar\tuuarrpeap lilr^Cdi; t ^Ro-rf a-n2wd0-0v0R, jdh_0e_"g_3r_e_e s* bF_ic. h Ii st ns h.oovudld"eosh^^i vsi e-t ee audn l8c-20 c i r r u t e s o f l e s s t h a n w0o50 p e r s q 0 f t D However, i t h a s a p o t l i - V t h a t o u tw eig h th e 0 f e e l t h i s OCF d i s t r i b u t e d K Bond m a t e r i a l h a s advan^a-en is to be made whe t i r -her f a O r . 0 " * 1" O u u l,. spray nay be u s e d a , ho w rt ith p et th . 1 210, .., nlm u I te d p " o t ' I * lf ' . ( f ) Sale? w ill want a ll m aterial ... A ch lo rid e content T his, whether they the t- c ^ o to a e r a to be o f a low s t a i n l e s s e t e e l o r o t h e r S - i l e a M ^ th B . c" B te" `>--a, in te n d to U s. I t on > *ay q u e s tio n o f h u n j J a l l J r a I t L , f l " 00" 1 t h a t t h c r ' to be p la c e d on s t a i n l e s s - T h e d f o r e i t i's ' c R 1*' r e ln f U lo tlo n l s Pr c 'h t , an a batch component, so as to h . ,, t i l s l o ^ t c T i n ^ ! ^ : n ^ ln e ^ l e r " ' A ' w f 0r , C T l l 'S " t n i n l e s s s t e e l H" ~ " ' ' c .a a f.U y is fa . batch, a . I . t r a L M ^ a i l ^ * ^ " ^ " * c t^ . L f r - 1ot * * " ' aovess th . ovcrU ! P la c id . c o n U ^ o V * ^ 'h ^ T ^ i a t u t c h lo rid o ^ the P lant to conduct end pro d u ct c U o r ^ , 1 1 e ^ ^ , J'' ?*' B" l l n , , > Tnle i , an chiohdo co n -.-t e "? " tf' e F" r r " " 18 to 8 t * < ^ .U The o o r - l i c - n .- c o d i l o ' L T ! . L s ta b U a h e i a `- th e lo w e st p p i p o s s i b l e . L a b o r a t o r i e s "" ^ d e /ie e d and s e t up by G eneral Research aid T eatiag c a u e in - s t r e s s - c o r r o s i I r a c l ^ ' 1" i>rJ " 8 U " ' ' . l a t l v e l , f r e e o f ( 1 ) Uni b e eto * - 1200r e c s ( 2 ) Carcv le-sp - 275*F mnxO ) Foa.*} G la ss - 300F tna>.i ( b ) Hi^rld u ro th an e fear; - 15CF bsv< /! the ^ l a ^ n ' S ^ c e ^ n M S o r t i e 6 D e ro rt.-:e A an^ i s nt *' K r . J . W A llen is ^ consul ta r.. in DuPont's E ngineering w P n u t i , C ^ i u h . ib - ' Wle" ? ^ e ; f f DX ,,,,*, , Th" TM * * | c a t e r s do n e t l i k e to work wJ fch n ^ K . f ^ ^ `e QaJ o r i t 7 D um ont's a p p l i - I Core v Tenp ^ l i n - t ^ J h " ' ^ 10 l t 8 ^ t a n d l e a b l l l t p ! [Isfct o r t a to lo s e i t s t e r r e p e l l e r c / c ^ c ^ a " ^ ^ 3''3' ! 1 1? ^ T" p- oan g la a i e U n i t e d tc 300P Tl < ? 17, a t PP13^ t e l y 275"F . a p p l i c a t i o n s , b u t R r0 A lie n g*-'**-* Pf on low tem perature l a lo se expensive on an a p p l l e T w u ! " P erl<l, ` h TM hown t h a t u re th a n e w ishes t o ^ t U. - " h i ? L ^ o 1 ' " ` U U i "that l f O v ^n ^o rn in j soli* aH icate*beveieht* " *##" " * * do 08 1 * H S 5* *2^PUj:'_yri th .c u t_ - p ir i nr tcT^S 7 7 y * n l 7 _ESl ate use a a o d iu c 'a ilic a te f tro n 3*y reccE aan d cd t h a t w* r w ater re p e lle n t" . U " r a th 8 r tfcan a t t M F` to n e l:, our p ro d u c t o f th e B t a i n l e s r e U c r L 'd ^ h ^ C a i e Y 'T ^ 1^ ' df l p P1' ,E w at"r on U i" I n t e r f a c e he lo concerned t! ^ t th U te s t f l ' W " - M o n a. as app licab le to ncnvichln* t c r i S ** D* aCO1 * ^ ) so lu tio n 1 - r u n t e d f o r 's o d ^ , u . on the . U i n j flo o r o r on t* . ^ U n " L V K t n " ^ `- n c j. e i t h e r n a a ig n if ic a r.t re d u c tio n In c o n a l e t . s j j M t e ^ S ' ` P 1' f d l c a t " oodlun B ilic a t# w ill r r m in on <,,.aM e x?7td, cine* the powdered to autoclavingo'' V ^ P ' ^ e n t i n th h a tc h u n t i l s u b je c t 7- "DuPont c h a rg e s a s much a a 3 ,5 8 c e n ts c o re p e r pound s o l i d s f o r th e pow der, d e liv e re d to B erlin Sodium s i l i c a t e s o lu tio n d e liv e re d to B e rlin 6 3 o60 c e n ts p er l b * . Sodiun e i l i c a t e powder d e liv e r e d to B e r lin i a 7 l8 c e n ts p * r pound*" Above from R. F 0 S h a n n o n 's l e t t e r t o R0 Co Amos, d a te d 3/27/62* ` (a) The b a r ic sodium s i l i c a t e i s producod a t Gr&33e l l i , Jersey, by DuPontc G eneral R esearch L ab o rato ry ia to conduct a t e s t to determ ine w hether o r n o t thec'O b n eic sodium a i l i c a t e chunks can bo ru n th ro u g h a Bauer H ill and ground s u f f ic ie n tly f in e , fo r in c o rp o ra tio n in to the Kaylo batcho T his should produce evon lo v er d eliv ery co ats to B erlin . (n ) T e s ts a r e to bo ru n a t B e r lin , to produce B anplea f o r IXiPont to ch eck , t e s t and a p p ra is e th e week o f A p ril 2, 19620 (o ) I t io r s p o rte d th a t Hr* A llen has r e tr a c te d h is in fe re n c e th a t if podiun s i l i c a t e were p laced in Kaylo b a tch , th a t im mediate approval could be secured w ithout tectin g o These samples are to be subm itted, but w ill have to undergo a six nonths te s tin g ap p licatio n period, before acceptance ia forthcom ing, as an approved in su la tio n c e te ria l re la tiv e ly fr e e from c h lo rid e s th a t cause s tre s s -c o rro s io n crack in g on a ta in le s s e te e lo 3 jTORKUUTICr? SrJDIPS (a ) P a st sta n d a rd K-10 l i g h t d e n s ity b atch was geared to 300$ o f duato V arious problems o f d u st d e liv e ry have been overcome. Form ulation changes have made i t p o s s ib le to use a d d i t i o n a l am ounts o f d u sto * T his d u st amount was in c re a se d to 300$ p er batch on Karch 26, which i s th e maximum th e system can c o n tin u o u s ly d e l i v e r , and th e r e a re tin e a when no d u st a t a l l i a a v a il a b le , th e weigh hopper i s to be in c re a s e d to 730,'' c a p a c ity . An a d d i t i o n a l b lo w er i s to be p ro c u re d , f o r th e in c r e a s e d d u st c a p a c ity , in th e 15 m inute d e liv e r y c y c le re q u ir e d . The equipm ent i n s t a l l a t i o n sh o u ld be c o m p le te d , a f t e r blow er d e l i v e r y , th e week o f K ay21, 1962o (b) I t i s probable a t 500-600# d u st per b atch , th a t th is amount w ill n o t be a v a ila b le c o n tin u o u sly , from s c a lp in g , k e rfin g and trim o p eratio n s,. I t may th e n be n e c e s s a ry to i n s t a l l g r in d in g o q u ip c e n t, which would red u ce a l l Kaylo processed o ffv a re to d u s t, fo r in c lu s io n in batch* (c ) S h arp ies C o rp o ratio n recoamends th e ir model P2000 E orinonhal Seepsr-D - C anter fo r conversion of 70,000 lb s . o f s lu rry per day, haring a w ater/co lid * r a t i o o f a b o u t 20, to one h a r in g a c o n s ta n t and d e f i n i t e w a te r /c o lid a r a t i o o f ab o u t 6. An e x p e rim e n t o f t h i s tr e a tm e n t o f w aste s l u r r y v i l l be made by th e Sharp1e 3 C o rp o ra tio n on A p r il l 8, 1962, T h is equipm ent w i l l h a n d le a l l o f th e w aste s l u r r y and remove th e v a r i a b i l i t y o f w a te r /e o li d s now e n c o u n te re d , whan p la c e d in b a tc h . T h is t e s t w i l l be fo llo w ed w ith d ilig e n c e f o r fa v o ra b le re s u lts* (d) 'R ead Standard, a D iv isio n o f C ap ital Products In co rp o rated , located a t Y ork, P e n n s y lv a n ia had a r e p r e s e n t a t i v e c a l l a t th e p la n t and we d isc u sse d v a rio u s p r o j e c t s w ith him-. One t h a t th e y e x p re ss e d im m ediate i n t e r e s t in van c o n c e n tra tio n c o n tro l o f v a etc s lu r r y , fo r w ater s o lid s . They produce a d ev ice f o r th ic k e n in g sludge and u p g rad in g s l u r r i e s . A sample was s e n t to th f o f/ a3 te elur-ry a t a w ater s o lid a r a t i o o f ^ 3 . They w ill attem pt tc raduoe i t to a 7-10 to 1 r a t i o 0 (e) The g rin d in g o f d u st through th e wet p ro cess o f the 18" Bauer K ill on a .023 s e t t i n g v tg e e t- u p a s a s ta n d a rd p ro c e d u re . Where and when ne-- e ssa ry t h i s i s coupled w ith th e v e t m illin g o f a sb e sto s f ib e r s , a t the elms p late aettingB o , W i l i n g o f a o o e ite f i b e r s - W3 and AV, a s w e ll a s i*T-3 Lake a s b e s t o s , h a s been su c c e s sfu lly a c c o m p lis h e d . The p la n t i s u s in g the 36" dry D i l l p la te s , o f d e v il to o th d e s ig n . The 3 a n o s ite and o th e r a n o site and o h ry e o tile fib e rs are being su c c e ssfu lly opened* w ithout length a t t r i t i o n 0 Some c h an g es in p h y s ic a l l o c a t i o n o f th e Bauer H i l l were cade f o r d ir e c t i n t r o d u c t i o n o f opened a s b e s to s f i b e r s i n t o h y d r o ju lp e r . An u n lo a d in g o f a sb e sto s bag equipment and a subsequent feeding conveyor, in to charge sid e , o f B auer M i l l a re new b e in g d e s ig n e d by G e n e ra l E n g in e e rin g . In c re a s e d s tr e n g th and r e s is ta n c e to im pact was secu red by t h i s dry B illin g method. I t was adopted aa the sta n d a rd procedure o f m illin g o f a sb e sto s f ib e r s on March 2 1, 19o2. (g j he dry m illin g o f a s b e s to s makes i t mandatory th a t a l l ashes tO B ^ be sto re d under ro o f and kept d ry . T his poses a problea in an alread y ( crowded raw m a te ria l sp ace, b ut i t must be done to secu re th e b e n e f its of the procedure. . (h ) K fa c to r te s t a a re to be ru n a t G eneral T e stin g L ab o rato ry , on p re s e n t p ro d u ctio n which has a d d itiv e s s t i l l in c o rp o ra te d fo r a lo v e r K 1 f a c t o r r e s u l t . T e s ts w i l l a ls o be made on sam p les w ith a d d i t i v e s removed. I f K f a c t o r h o ld s on non a d d itiv e sp e c im e n s, th e a d d itiv e s v l i l "be removed, f o r K f a c t o r i s now c o m p e titiv e ly s t a b l e . T h is w i l l r e s u l t i n a lo v e r c o s t per b atch and in c re ase d s tre n g th , a s r e f le c te d in the modulus o f ru p tu r* . ( i ) The p ro d u c tio n fo r m u la tio n a s o f March 21, 1962 i s a t 1 0 .5 p c f . The M/2 f o r t h i s b r i e f p e rio d seem s to be s a t i s f a c t o r y } w e ll above o in iiau a in E ay lo CAS f o r K-10 l i g h t d e n s i t y . A f te r a at- b i l i z l n g p e rio d i t i s planned to reduce d en sity s t i l l fu rth e r, w ithout any d e te rio ra tin g e ffe c ts on K~10 l i g h t d e n s ity p ro d u c t q u a l i t y . (j) Q uicklim e was s u b s titu te d fo r h y d ra te d lim e , g iv in g a h ig h e r con s is te n c y , in h -1 7 cor m a t e r i a l . A fte r some t r i a l s i t was ad o p ted a s th e sta n d a rd fo rm u la tio n . I t reduced th e d r ip lo s s damage and th e offw are fo r (k) The p re h a rd e n in g o f K-17 c o re m a te r ia l i s to be t r i e d d u rin g week of A pril 16( a t B erlin , using the c o llo id a l s ilic a nade a t the G ranville R esearch L ab o rato ry . Commercial Ludox, jir chased fro a Dupont has been tr ie d j ^ ( th e r e s u l t a V6ra o u c c e s e fu l. The K-17 c o re m a te ria l was p re b a rd en e d . -9 - The c o a t v as f a r to o h ig h . The c o s t o f t h e n re h a rd e n ln g a g e n t made a t G r a n v ille l a orach l e s s . However, t h e p r e s e n t p la n t K-17 co r* fo rm u la tio n , usin g q u ic k lin e ie g iv in g the p la n t improved o p e ra tin g r e s u lts and lo v e r offw are. U nless th is form ulation is d ire c tly responciblo fo r proved "blova" in R oddis door m a n u fa c tu r i n g p ro c e s s e s , th e K-17 oore D a t e r i a l w ill n o t be prehardened, w ith the agent Deceseary to speed up the chem ical renotion b ein g addedo T his w i l l keep th e co at o f producing K-17 core m a t e r i a l a t a lower baeoo Tho r e s u l t s o f t h i s p re h a rd e n in g t e s t ru n w i l l be k e p t f o r f u tu r e os , i f needed, tho same v ith th e p ro cess p ro ced u res f o r m aking, a s developed by th e G eneral R esearch g ro u p0 (1) The p re s e n t p ro d u c tio n fo rm u la tio n h as been s u b je c te d to a tem p eratu re o f 1200 d e g re e s F,, f o r 96 h o u rs , on th e h o t pipe t e s t e r a t B e rlin ,, T h is c o n ta in s Oo5% o f c o a te d v in y l g la s s f i b e r . F u r th e r t e s t s a re to be conducted a t once to d e te rm in e w h eth er th e maximum te m p e ra tu re o f s e r v i c e a b i l i t y fo r K-10 l i g h t d e n sity can be in c re a se d to 1500 d egrees F 0 4 e CORK Ka.TEP.IAI- (a ) A m eeting vas h eld January 24a w ith Roddis D iv isio n perso n n el, o f th e W eyerhaeuser Conp-any and G e n era l R esearch and S a le s , r e g a r d in g p o s s i b i l i t i e s o f m utually developing a 1 -1 /2 hour ra te d f ir e door. Another d e sire vas to have a lov c o st door v ith a 3/4 hour f ir e r a tin g . About 100 degrees in crease in te m p e ra tu re on c o ld s id e o f door would be needed. At one hour p resen t r a t i n g th e te m p e ra tu re i s from 1700 to 1750 d e g re e s 7 . The weakness in p re se n t oho h our f i r e d o o rs i s t.he s a l t s im p reg n ated wood r a i l s . To re a c h 1 -1 /2 h o u rs advancem ent I n f i r e r e s i s t a n c e o f t h i s wood o u s t be sec u re d ` (b ) The R and R bond fire retard in g agent, has r e s is ta n c e . T his work o f cem ent, which i s now known a s K Bond, b ein g a good a good chance o f in c re a s in g the range of f ir e development i s to continue as ra p id ly as poasiblo ( c ) I t sh o u ld be th e c o n c e rn o f a l l i n t e r e s t e d OCT p a r t i e s to make . any im provem ents r e s u l t i n g in a 1 - 1/2 f i r e r a te d door a p r o p r ie ta r y p ro c e ss or p ro d u ct, r a th e r than one m utually shared v ith one custom er o n ly 0 (d ) R oddis D iv is io n , o f W eyerhaeuser Company h a s been g ra n te d p e rm issio n by U n d e r w r ite r s ' L a b o ra to ry to s u b s t i t u t e K-17 f o r K-20 c o re m a te r ia l, f o r use in one hour B l a b e l d o o rs. K-17 co re m a te ria l h as been s e n t to Roddis f o r t h e i r t r i a l s . R oddis i s now r e c e iv in g K-17 c o re m a t e r i a l , e x c e p t f o r K-20 c o re s t i l l in s to c k fo r them a t B e r lin . ( 0) C u r t i s C om panies, I n c . saw a f i r e t e s t a t F o r e s t P ro d u c ts Lab a t Kadi so n , W isconsin th a t vas s u c c e s s f u l h o p p e r's tr e a te d s ty le s and r a i l s , w ith B a lts im pregnation to 3 to 4 lb s . were u sed a A change from standard K aylo d o o r assem bly was made0 Tvo p ie c e s nom inal 24" x Z&n were used on to p , r a t h e r than s ta n d a r d 12" x l 8" and l 8" x 3^"o However, te m p e ra tu re on c o ld s id e 0 30 m in u te s was 190Fo For R oddis a t U n d e rw rite rs ' i t was 156 F o ' ' . -IO - J glue wheel, w ith hand placed / L?b 10 n t on fo u r Ck) g lu e d by hand p la c e d c la n p s , i n h o r tn o n U l n< i ,1 Maftsbl*<1 by hand and v a re made u n d e r in a p * c tio o f Unde^ t e ^ ^ n T ' n t a b l * ` 113 to Chicago on Febi-uary 9, 1962 " * in s p e c to r. They were chipped lllj r ^ t e d the cold sid e ! otocKl up p e r f e c t l y . The s t i l e s and r a i l ? ^ o a h w c ^ P t round Hearom3 r e p o r t , " th e Kaylo v ^ llo At ap p ro x im a te ly ko a irm te s n ^ ' a ^ T f ? ld ^ ctand nP the door knob and the top o f the d o s i T t l * h a If ^ ^ t v e o f th e door ig n ite d . T his was t^ e n o rth / 1?' ]* eura3^ ' th* whole f ao * B lm tec the face s ta rte d to b iro a t I t r * 00 th# >th door a t k5 I t worked i t s way down th e ^ o u r 6 nAt th e #ad o f th e Id e * ^ *><* corner. te s t continued through th T burned o f f th e n o rth d oor and th e f - r * ^ ld edd<5^ waa alm o st c o m p le tely o r. Wh,, th.j- h lt u * " ^ 0 - c . taracd h a lf v a, o ff o h th Kaylo ana the door (n o rth ) c o e p l e t e l v ^ ^ f the tLr9 hose. the b& lf of the door d isap p e a re d ." ^ appeared} the south doer about f l x . t t o r t a t K s d is S , i - a ^ l a i o ^ a2 h* " ' h ' f 5' 3 - U t h o " ^> t h . C u r t i , v& v e ry s u c c e s s f u l . p ro b lt with f i r e , the second te a t aeain anj M otier l a t e n t ) t o T^ f ^ i . ^ 0a ^ hfl" thB W str. a a j u a ltg K-17, a s t h . a ia a r a l c o r " J ? e! i h Kar-ch 1, 1952, ^ K. 17 c o r(, B' ' T 3 f a ' * . H r . d o o r, * ta rg e t date o f Sunbury P la n t, where e x n e ric e n ta l Wa s n i? ? s d fr ^3 B e r lin to t h e i r p la n to t e s t th e s e d o o rs a t an e a s t ^ n ? aJ-" f a c tlir * Waa to b e g in . They acceptance te s t a t B ndervritere* l l h b*f re f o r 411 3 .e <? ! ,, a : r ! S i 4i : " s ci ^ i o bj " r lead in g to "blows" in hot pre^s ed * . . of ^ itr ic * for detection of defeots n ^ 10 Apru ^ 1 r 5 ` BffPijD. ACKIPJXiVreS . - i ( a ) U n ited C lay H ines C o rp o ra tio n , I n ? b r u a r y , s t a t e d to R F . Shannon, th a t th e y had davoiOped a h ig h to ap eratu r bonded a g g re g ate paroduot th a t does n o t c ra c k on d ry in g , w ith 12" x 12" samples The? had se c u re d H/R , - Ta^ U8a i n e x c e s s o f 110 p a l a t 135 l b . den sity They h a re su b m itte d th e c a ' ' sam ples to OCF f o r e v a lu a tio n . They a r e f i l i n g p a te n t s on t h i e p ro d u c t. I and C D ivision have in d ic a te d they are in te re s te d in follow ing th is d erelop- e e n t . Jo Bc D ennis o f U n ited C lay h as s t a t e d t h a t i f we do n o t talc* th e p ro d u c t, th e y w i l l go to J-H , who h a re in d i c a t e d th ey want i t o (b) I t van proposed s e v e r a l u o n th a go t h a t t r i a l s U Bade on a p ro ceed cin ctu re o f K aylo d u s t and Ludoxo I t i s now p ro p o sed t h a t each a H ix tu re b s tre n g th e n e d by th e a d d i t i o n o f n o n -c o a te d g ia c a f i b e r s , o f randoo le n g th s , i f necessary (c) A com bination o f Z e o d l, which i s an u l t r a f in s , p re c ip ita te d s il i c o - a lu a in a te compound, w ith lim e , a sb e s to s and w ater h ac, on s n a il la b sample t e s t s g iv e n good s t r e n g t h s , when d rie d a t 8 h o u rs a t 15C*F R e c a ll i s v e r y ' re a c .ivc- w ith CaD I t i s nanufaefcured by th e J K. Haber C o rp o ra tio n , Eaver*'De-=o. a c e , Maryland I t i s p lan n ed to t r y t e s t s o f o ur own d u rin g th e week o f A p ril 9 producto Gr a n v i l l e 0 T h is o f f e r s a n o th e r le a d f o r a don--au to e la v e d (d) The n e c e s s ity f o r a non--a u to c la v e d , h ig h te m p e ra tu re h e a t i n s u l a t i o n p ro d u c t, i s c o st pronounced fo r th e fo re ig n m ark ets, such as Mexico, South A fric a and A ustralia The n o n -a u to c lav e d p ro d u c t, i f stre n g th e n e d w ith non- c o a te d g la s s f i b e r s , p a r t i c u l a r l y o f w aste d e r i v a t i v e , would be o f immense v a lu e to f o r e ig n sube'i'dl o r i e s o f Cve ns-C om ing The c o s t o f re m ix in g , p r e s s in g and d r y ir g equipm ent, w ith a s few molds a s n e c e s s a ry , would g r e a tly red u ce tae in /esw o en t c o st fo r g e ttin g In to p ro d u c tio n . A good top grade p ro d u ct, co u ld g iv e Carey Temp r e a l c o m p e titio n . I f th e o o s t can be low ered and t h i s passed on to th e custom er, th is has a l l o f the ear marks o f a re a l in d n o try le & d o r Ve i n t e n t to keep p r e s s in g on t h i s d e r e lo p a e n t work, w ith th e General Research group a t G ra n v ille 0 6 RAW MATERIALS (a ) Rice siz e d jA pebble lim e produced by R a tio n a l Gypsua i s y e t to ba ev alu ated a t G eneral R esearch Laboratory (b ) Z o o s il h as p ro s p e o ta a s a p re h a rd e n in g a g e n t f o r K-17 coro m a te r ia l and the p o ssib le source of s i l i c a fo r t non-autoclaved o alciu a s ilic a te c a t e r i a l . T hin i s a J 0M. Huber p r o d u c t. T e s ta a re to be made in A p ril (o ) Caddo T r ip o li, o f Glen wood, A rk an sas, produced by Baker and C o llin o o n , i s in p ro d u c tio n on 200 and 32^ n e -h m a t e r i a l . T h is pay a f f o r d a oourc* fo r a second supply vendor, i f m a te ria l and p ric e are s a tis fa c to ry . -1 2 - S/ r (d ) Johns-W anvi 11# ex p ects to be in p ro d u ctio n o f a nev type ( f o r them) < o f d ia tc o a c e o u a e a r t h , onetime in th e fo u rth q u a rte r o f 1962. There la reaso n to b e lie v e th a t th e d e p o sit i s in Rev K exioo. T h is tm aterial ay be . c s a tis f a c to r y aa a aeoond source o f di&tomaceous e a rth and co at and fre ig h t w i l l p ro b a b ly be c o m p e titiv e to o th e r s u p p l i e r s , ouch a E a g le - P ic b e r 0 ' ( e ) Long fib e ro d a o o s ite , p a r t i c u l a r l y V3, h as been opened by dry Bauer H i l l i n g , on th e J 61' n i l l o T r i a l fo rm u la tio n ru n s have in d ic a te d t h a t a su p e rio r product r e s u lts , giv in g added stre n g th and in creased re s ista n c e to isp a c t and abuse0 T h ere i o n o t a u f f i c i e n t VTJ a r o s i t e a v a i l a b l e i n th e now r e q u ir e d to n n a g e s, s in c e i t was s u b s t i t u t e d f o r l i k e amounts o f c h r y s o t i l # a s b e s t o s . The AV on band w ill be u sed , but th is grade is in sh o rt supply a ls o . A k j grade o f am osite i s to be t r i a l te ste d a t the G eneral Research L aboratory and i f su ccessfu l, t r i a l te ste d in several production runs in the p la n t. I t is a n tic ip a te d th a t th is grade o f a n o site w ill be accep tab le fo r s u b s titu tio n , s in c e i t was so s u c c e s s f u lly te s te d s e v e ra l y e a rs ag o . T h is should b com pleted by A p ril 20 and G eneral P u rch asin g th en can c o n tr a c t f o r th e KJ grade o f am ositeo 7o IMPACT HACHIKS The G eneral T e s tin g L aboratory has oom pleted th e developm ent, b u ild in g , c a lib r a tin g , in fo o t pounds and te s tin g , o f the re q u e ste d im pact machine* * I * As soon a s th e t e s t d a ta h a s been a n a ly z e d and th e m achine d e c la r e d , .by th e G e n e ra l T e s tin g L a b o ra to ry , to be re a d y f o r p la n t Q u a lity C o n tro l t e a t s f o r im pact m easurem ents, i t w ill upon re q u e s t from th e p la n t, be se n t to B e rlin . A nother machine i s to be b u ilt and k ep t in the G eneral T estin g Lab fo r c o rre la tio n o f r e s u lts w ith B erlin Q u ality C ontrol B opartcentc Thia d e ta il should be handled in A p ril0 80 POURING DEVICE * ( r ) A d d itio n a l changea^have been made to th e 6" p o u rin g d e v ic e . The p o u rin g tech n iq u e h a s dem onstrated th a t a su c c e ss fu l o p e ra tio n can be erpec'tod on 1 - 1/ 2" minimum th ic k n e s s s i z e s , where th e o p en in g i s s u f f i c i e n t to a llo w c o a te d g la s s f i b e r to p ass th rough th e mold f i l l i n g s l o t , w ith o u t c lo g g in g and causing s l i p p lan es and a ir h o le s. D esign must be scoured to allow th e f i l l i n g o f th e device to be in p ro p o rtio n to th e s iz e o f the nozzle opening and th is to be v a ria b le and c o n tr o lla b le . E n g ineering and Design a p p lic a tio n is to be follow ed c lo se ly to su c c e ssfu lly complete th is device. P relim in ary te s t a have in d ic a te d th a t s l i p p la n es, a i r h o le s and pouring f o ld s can be e lim in a te d , i f th e n o zzle v e lo c ity i s n o t to o g re a t and no clogging ie had# ' r sz - 1y - 9o INCREASE OF OT O W EET/EOf CORE AND SHELL OK 1" HOLDS (a ) The u se o f dry a l l i e d opened a sb e sto s f ib e r s , as v e il a s coated g la ss f ib e r s hao re s u lte d in core clogging, roping and b a llin g o f th ese . f ib e r s in th e trarsniissdoQ lin o s , T alv es, and pouring nozzles,, Opened aDordte clogging is p re -n o z z it, in a re a s of re g u la tin g valves* Coated g la ss f ib e r s , 'p a rtic u la rly the hard coated phenolic ones hare a tendency to clog a t the pouring nozzle* I t i s an advantage to have the pouring nozzle as larg e as p o ssib le , to re d u c e such c lo g g in g to a minimum, T h is p o in t i s tru e a lo o , a s e x p e rie n c e d on the 1in ite -d use o f th e t r i a l s v i t h a ^6" p o u rin g d e ric e o (b ) C o sts a re to be procured from an o u ts id e shop, fo r th e t r i a s i n g o f cores on th e 1" th ick n ess colds o f pipe covering, to a mininun of 1 /8 " * T h is w i l l in c r e a s e t l e o p ening i n th e hand p o u rin g n o z z le s,, By u t i l i z i n g a th in n e r, but s tro n g ir m etal, fo r nozzle fa b ric a tio n , a d d itio n a l opening can be s e c u re d , o v e r <md above t h i s l / 8ne . (o) The p la n t i s to proceed, a s soon a s p o s s ib le , to open th is s lo t on se v e ra l f lig h ts o f ? x 1 c o ld e . These aro to be placed in to production to see i f th e 1/ 8* r e s a in in g l i p i s s u f f i c i e n t to s e c u re good s t r i p p i n g s Based upon these and o th e r t r i a l r e s u lts , the d e c isio n w ill be cade whether or not to trim back the 1* cores* 1 0 . KAYIO-KLAD * ' (a) Aluminas A sam ple from I r s u l- C o u s tie s p r e s e n tly fu m ie h e d aluminum embossed J a c k e t f o r Kaylo--K lad was r e p o r te d by them to be f u l l h a rd Alcoa A luninun* T his sta te m e n t was suspool- upon exam ination o f the m a te ria l,, The sam ple was re n t fo r ch eck in g to th e m e ta llu r g is t a t A lcoa, Tennessee L ab o rato ry fo r Alcoa and the r e s u l t v ast (1 ) 3003 I I 07 ( 2) HI5^ t.vapor (3 ) H ardnees betw een 1 /2 ( E l1*) and J>/h (H l6) (**) Was n o t HI 8 o r f u l l h a rd , te c p a r 0 The p re s e n t aluminum Ja c k e t i s somewhat h a rd e r th an th e f i r s t s ta c k s o f aluminum fr>m which th a f i r s t m onths o f Kaylo J a c k e ts ver R ippliedo I t i s n o t as hard as l-M ' s p la in aluminum Jacket, I t docs n o t have th e s p rin g -b a c k t h a t J->M's aluminum J a c k e t Las* I t w ill be determ ined a t once w hether o r not the eoboosing can be done on H l8 o r f u ll temper I t w ill fu r th e r be determ ined what degree o f embonLag p o n e tr a tjo n can bo had from A lcoa* " I t was s t a t e d soae months ago t h a t th e H I1* f u l l h a rd tem per oould not be embossed* Thin statem ent w ill be checked fo r aocuracy0 ue TEMPERATURE P IP S TN.qtrr^-yn ( a ) Work w i l l be done a t one to d e t e r o i L i f a tw o -U y e r h i A 4l " ui atlon b . dev elo p ed b , p la c in g a T l " or M / 2" a c t i o n o f Kaylo in s id e a s im ila r th ic k n e ss o f F ib e rg la s , oeoentod in to plac and producing good handling r e s u lts , w ith o o rre c t n e stin g and f i t . 1-2 REDUCE OR ELIMINATE DCST ON KAYLO BLOCK that tbi X- 1CCk J"r`U"rJ' 196a- c "J'r i "d t b . racconendatlon tt8 dU6ti" S8 f th * * * . a ? 1 n a t e r l a I t o do t h i s i s LudoXo T h is can bo d i l u t e d w ith w ate *** f ?'ra7 bS d i r *ctfrd on on r b o th s i d e s . T h is , w ith one a id e * sprayed g r e a tly re d u c e s the d u s t. With both s id e s sp ray ed , th e d u st i s S f o i t r t ^ d CM rai^ h edo * n e r a l ^ S ^ e e r i n g and R esearch a r e com bining d ^ ec^u i ^ n t Eeded f r a p p lic a tio n and d ry in g a f t ? h i r h ^ n i d i t i f n e f tS PrOV ti'iB i s D ic ee 5 a r7 . to av o id n ild e v a t t a c k in t d l i a p p S c it" . . ' ?*ratU r' coM U 1 m . P ^ tlc n la r ly In s te rn * ,, before 15 BOILER I NSULATION , 18 dt sixj OUB a ls o o f h av in g an i n s u l a t i o n t h a t could bo b i l e r s by in p a lin g upon fasten ed sharp p o in ts , in a ran n er TO,o l# ^ y i n e x p lo re th e p o s s i b i l i t i e s o f d e v e lo p in g ' euoh a p ro d u ct and Bake t r i a l t e s t s o f th o se fo rm u latio n s showing p ro o ie f. (b ) P ro d u c t T e s tin g L a b o ra to rie s is s u e d on F e b ru a ry 12 . a r e p o r t M onsanto. i t t ^ w ^ e T ^ " ^ D V tt8 " ' * " * ** CC? P la r t / L lS 'I10 CnrVei MOCk * 10 ^ St 550r - A 'V11"*" at . , (3) Kaylo b lock - double la y e r - 10 y e a rs a t 600*F on duct 11184 h e a d e r b * * * - . . S i X . a ir duct rT b,, b i l ^ r ! W " - 1- 1/2 je a r o a t 600*7 on o o o o n ia rr S ' V l l e o n r t U * n i t - B & V c o a l firw S ^