Document NNE3V0dQwyamKmyNQQxv1ymzy

E. I. DU PONT DE NEMOURS & COMPANY 256 VANDERPOOl STREET NEWARK NEW JERSEY Serial No, Copy No. KN 52-2 NEWARK PLANT PIGMENT COLOR RESEARCH REPORT Final Report A NEW APPLICATION OF LIGHT TRANSMISSION IN FOLLOWING PARTICLE SIZE REDUCTION II. APPLICATION TO PIGMENTS OTHER THAN CPC Period Covered MARCH 1951 TO DECEMBER 1951 FILE* DATEr 144 2-25-52 N.i 14071 i, DU PONT PE NEMOURS & COMPANY iXms PIGMENTS DEPARTMENT ' 2%o VAHOERPOOl STREET V. ' ^ NEW JERSEY Serial Ho, j,Copy Ho. L.: NEWARK PLANT PICMENT COLOR RESEARCH REPORT Period Covered i; FILE; l /H DATE: S747 DUP050068889 0o'-/ 3. Library F;':, (144) rS .* 35". T 3. ci v 3V. a *4 u\"/a. r-. b ,ar . /\-1 r . : - wM V /., i. .X * r; *. 'A: _ > . ;} :c:i l;;il TO DEC; a i>i:x 03: uca-gM- L;.OX-X1-3o 50)a . I5.c; uwm b " ICV3T BY Eo BAKES v B. H. PSEiaHS BATS SUBMITTEDj 1/2? DATS XSStlED's 2/25/>2 DUP050068890 ' i"v. "'-6 ' .l . d I or-..' a-. ; X vro. . - > OJ.. - . C' v' '' " . ' _ >\ . .v '` ' r . 1` , -Ct *f. ... -'v ir . >':.d:u ; . X.l/.c , ;or r; v-s or-; , \r .p .X '. CX JM r . .rrl X'r. y X:g rpv y y--la --.I-, m plrysito ohl ar *> * 5 Ip' ''v.X. Vvtj. ..p. ) C : . V i.- " -j -c.-. 1. X. :-Z v r. ' P. p-a - / ' ex ilr X " .. ' ' o.\ " V,, : X''X, .XPP pvp PX.o dl-; -- ! v -Cr CvpprPr ; fcl is:. . P ' ... . p.to;.Por-Ps , ie! :: rCT : ... Pl.p.'lP'p;, f sj ' ' ...P 1 XX rLXep P J C '' 1 \ X .he t?r -ppP ,r-p !0V : r t; i D e ' i 0. .;o i< . r> .S' , r: ><: '/./P <f ' : r '"d cryv: . . -f X ' : -d r .V'.. P . y>.y:rr.'s so 'XX.:Xr..., it . :: rr: "ly- P. y ) ... ' : a o ..a z~- y: I'.O' ... ^ 'v. , d .{>:. ... ) OX Anxli'anll/ c d.;;' r 0: . > > ' } Xieriisidlno Blue -' 3 - ...} .\urlc , .: . 5 3) Jolybdet-.o Qravrs i iS- ' . :. 3- In all \ c-. v/:>2 c... or: '. ' . Xvla cis T' fy`. / 'I \'ll ' .1'.. -.shion as do a s- : 11'; V X. 'mis . :.so irdcr : r,,-v. b: / d' .isivvc'-iw g:\'rzei tea , .nx. or tic i: y ;r:Zi;'z 't ;- . -33. ,r :'vIvn a i: :11c: r p:".a-..;-. rdiclo or r t : ; sX'lsrOi'si ' . .. VX,\ 'CW:,,' :' 0..' - JX." -n i-.d sposlx'X t. : i.,:;,;rf\iro /: r hy viXr r': X '..d: - e zac /sa to ocrrolat : Zb V -i. O iOiC: 31C j -ii' ^ liT,' . - Jh ' Q , .oral toohrlvva of o . ?.i S spoct-roob >: . X cr - ' -GC : a XX-51-43 - ' ; If , vpcatad hm. . it * ill - o . ' vbat all v;:..; sv-ro; ord' .do on.tho >;C. r .creortr' v -.Tfcc::,o Oi,?i U0.V.1" i,;.; liglio cwlia placed fo.rx car o'jay rl om t ha iote^roxX.'..'- -.o r-iniraisse the error introduced so:. fccattcii'cd jugr.t as _t fitted light. DUP050068891 4, ; -i> .O' -.tl /. od ; ly vr n;.. ll 0 ' - ': ir.-v 1,'. ' . < ' ;'l ;rc :.v. xa;;:g'. i ~f tie racro. '. > ho . nr: :V ; tv r . tioii at ' ' V r r-'rd.;:.a siao ; is i b.o ' 'f. V 1 O ' ';...: 3. ;>i' :"0'..." the *; - ., 3 1 - : g ) . t!:- ; : :ac i 0 ' ; *, a V . .it '3 0 v* .1 . pi'' :. . >..i:3;:. id or V--^ c;:.; s ;s ' Ird y& b it 1. : V.y>ta.C'.,. ire. ; 1 it . { ' f , : ` . ; -.yo f'v; i -V y.- i' x . ( ot. ' or. S 1 ' . . *. ..jt "r> 2 ,<C3 / ' ' C 100 dr v't'-d rlu '.( .r X.'n ; ?\o bririfc ; thr > lj '( 1 -s 1' ,? T; ; w *"*'- -i. (;- ai i-;, a'-r r:d;u>Kl,u' calo ! .. ' .;t >1 ; ' 1 ''.['*%/ (1 f' ;: ..v a-! j i* ' m -''a *; '. is yr % .\y t ti. a . 1 tC iialiv; . tr u Irsivt ;,1 r:r.ur rV -r-:l: *>* ..ho1-..,*-, a. ...*.....:. J . 'i>,*.: * a 'd 0 1 . , r -- . 4. of bo r.lurry to' ::: ora 30 :)l ' r 01 - , ie- 33, visrrl' inspo o'vio't O C* 1*0 >, ' , ..or . .rfration is about rig i v/ 4 'I'sl 1; . ' :U: .".vi light tircurr: irricr is a ~t Ira;. ' t . so a tier is 35sad in tba a I.-.a a ca. '. ,i. 'v.-- ' or of the ,;1) a-cal7 sal vi on. 5 Vf.. t / H V '. -.r1 ./ 1r t' . -.s cast tie :r.il'. e;l s:r ..3 y .' *;* V, ..IS -;.viglr r 1 ;igr"nt :; a'. . .%r tv-;.h ' r-' '. .v>.\ 1 3 :m.' r-lo-iy'-.a at rarl' rvr 11,y'ib " :,v; ' ' ;* >1; " . . '. ?`1, ' .' .s the,. ibis io anrt;,0'r co - a . il 1 `.. . ..' to a {greater oA* latter i-."' '' " .v- h f . .... ' ' o'" "i I .>w.r- FI:;. ?, illu.'-fr. rhea dlaporri:.-"is 4t'--i:.y,, 1 :: :;a a;: a e ET-525-D ii X'-z rangorers e u Xnt'~z d 1 -> UOf., l'.:/r; y-yl. ; y g. nou-aqv.eous disrorsior such c.r ibis., 'thy tcehri.-re is to to .a. .-Jr; ' ': t:it& a mediimi that trill keep bho pig .iar.t di. ,;":' ':d art whirl -'ill dissolve it. In tbit case ? amyl .&c,.;:tato v-rs id rally suited Jiao o;::rr; indicating a staalj, particle sits iv tbrt of lie standard, t trroas to: large pci-ticlo sise er.'v-h ir that .ci a laboratory preparation yirirr a pigment of larger avo- -<twc. particle iso i"; tho oo,orcl, x ik;: partial:, also indc.s: of the sb;' lard pigniont i a' X{... 1 . a against 60.b for too laboratory p' ;wv:r . Avoro go particlo rV..:.;;i;!r calculated by artoifie surface sruisu:. ` c-u these two pi y is 0.12 microns for tbs' standard aad C.2/ ricrons for tic Id >o?:vnor;t go-ytslo. This caiorlrtlo'i asyns-es a opeuifio ..aryity of 1.6 a j is mode a?wing the eqit.ition in too footr/rho. Electron micrographs of a boro two sv'ipios are also shorn tl . a o figure. do detailed s dy was made of the relationship V.-t -*r ;.-I' 1: Specific surface ineasi:ryaontu vr.rs obtained fron -tie k . 1 ' station using tne nitrogen .adsorption technique. Ear riel* .,..., calculated, assuring spheres, from the equation, ,.C j Diareber irdcrcms). * . - --------d2--f---------------------------. ........ ; , op. -bun v:sq- meters/guari) -fop. a-. . DUP050068892 .. sir;.' si st .u:d;; s: so :s-;.vKj- ^"rOSS :.. 0 s- .33. osary.' V;. ^ I / /: V: ny'C - _. jpid.sxi ' 3 '3 If .\r * * ' - ' ft - she re t-r> > '"'svisf i '. C \ is ,:XS ;& ' 'ins' vV ->rr- ft i - ? *X.ns f i :> at..- --ho , V:,-.SCC of she di. : i . S od , '. .r. . .i,. Iv s.. ..in v lads. "yf- , ' . d by.thi ,r 1; t 'tv. ; ` > r t .-I he s:'xicX 0 CSS .(. 0 is this 'so: '1 v - *y 1 M 0 s ox ` - 0 <S i.'\ ,ss* f- '] y > > ; ' tK 'S- s'-:is 0; Q S: X*x is...\M' S'1 ir * yieiv`'t /C is. ` 3 . -i s.- ' ; - '-A ' at V 1 v` _. v/d*..> . t /': iats A,.^;; j" r 7 i'* . r *. \ 'V.!V' . i di- ' . >. ' 'X ' ...'.ins s:" is , s;.*' ' - i '* P . >. ids- a, t`v; 5S XS. :r. s kTanei.r-: . l lex. V";'; ;:xu i' IK ':. CtCh:: l.u ihs M. fhe ', y.C v. J' -ytlV'sj -tss ay r ! ssf si 13,2 v -9 I'-\.;-' :.L fy ' 3 o- ; d y-- ; ' *" K: Adii'y Ir ` "jiSj I';' . ry ' ' it. r.i't t; s t .t s f v-- . J -*.w.. t..'.^ ' - * so at of ' ' s slurcy; ..pi. , ; v, oris ' . :i;` a hi * I; .i,, ,yv. f,; .. l.v,. Ay K* :i X '. 's'. ' . o ai ... . 'M .0 rod f `.1 V.'. so in ' 'I- ' d ,v 'J viV-V- * ' -{ >a.-pso :h: fro-: :....i'- Mi * i.t At.. xih paste nota too sif ok <SS, i s : I . ,.,..3- O' , c; as at tii/3 ; d f\. S ' ' f y, ; d - *'t id at;: rn-'id. After 5 rri:: s s r- s . ./ . ^ . .' -3 P&. ailutioh i/ith v3-;o:. . fs ether (lilrtioa is r .0.x :d - ": > ; _ n \ .* .. hex. Surat io;>. for light t;..vsy(iC ' s,;d.Ci. nsM'iX. : > "* i * S<w* k" ' c... -ry . 01 Is s i.SS.d g. i shows light tro'hsnr order. ouryea c..v:d olc-i s:.-:i : ...ox of "djD-.G3.044 di-f compered z-v & Ido vrstovy -semplo cf r".r,t . sodde .^issc. As cii be seen, d r 3 rr.ss t' .'0 rs.irc. of to>. Or . ..studs* This allows a choice.. .s;i:.;-' ea?.cu3.atir; ", V. : V ix In -this case, if the shorter tsave ,ny,b rsisi :,a~i hod boo 'S r:v . kittle difference would be . shown f -.> pi;:; v, s 03 lunger `'.rave-length :.doiovn is ehosor.i a.s.... ,,'Ld>3 parti do si ,;c ... . as calculated .frow the erprs.fi osi 2 Si vie Particle Sine Iv.derz '? bydld "A? ;. . d^dx . :;a .'.an c.. ,xc:x c-mv:u-y 'yvrri.o.-s orrix .i :.) T'bti a tbs partied srize index 12.S for the standard and 16..:' :Cxr ;: s.mevital pigrt rob. . 1 J 'd 2V^601 is tvs.de up .of the follo%.dnS idyl A-edite . . i olu.ol a .* a v Sthyl.Aeatafco *.* Butyl Alcohol p , , Ethyl Alcohol {*3 A}, r<lt o 3 S I*i 12<. X2*Ok 3 ok; DUP050068893 * %s.J '. 'v3. < :. .. h> t '^Cbv b*:C a . i t?ab': "* X- ' '- .... -V vc r- r v- b:\ n. ' > U *. .'* she.; . ,WV CO *v> C T, 0 b; nC. , si ': f: c -;rr via : ,, b\ 5; *' '?b A ' u Vr v V'C C'.aC. .. i. ... . h" v> - U. -ba r.ieaaia v * ,;v< . ^ .... ,, . ..,1 ; ; -y ' ,, '.bb - ; \r . ic n ;y " '. '> .v V. . *'' 0';.: c: 4 CU > ' .' .:. i;a !.\ : a lc . P ' . ,/. . S / J .- ' !' * V . 'v i' .'%. ' = '-ar ' -v. ' C ' b 0" ah % 1 i;'v- * , c .a' w fa.; iv.? at' i . b a a,c.a" tn. pic.. The ca leva.: its .n a n; cat;, 'h on r* 2 x>y.i-ny specific t* bay cf 1.5 VO si ..-TV; f a "; . . -V. /' . -St . :t i.'** Ota be ss an ;f at : be . .? ; -. 7 i , w; is a ;-t ; A b <t >. a to 1 : ? aba v; M'* < a.; a c;.a. :.7 v / b- - a; a is.. v?.V?. -o - of aba : i-::;-1 4 0 .. . v . V'4'CC i'.Ovi . 7 ".'. . 1 :.:V 0 , c m a '' * i.; 1 . , Air .../ v'oab. to *b a a '. . a .'0 O' 'lb" aot ' a:a:-. ta'. aaa-vaa ta ib ;s ' ; t' ; la. r b;. y::v si . a;:-'.'-'" '.o, it la .a: ic ;. vyae Vi or.`.at that an a.ct-; >, - - . b b-y'* 'i " 'b- "0 V ,K\ ' ' ' bn ..' a ,T.aa-ya a if 7 a'it tc obtain bra a. . .a- a' . j -t... ! a.! '.rt 'aina in dor. is arb' SW . -SS ' : tit ' pr-c a a; tb. , --. : a; ; a " -r'-,o t" V . & . ' b- c:' x j,,s v " v X' V t. V" t a /. b {' 1 ? ... -- by V'. .. /' ars v. iron y the- .ifio \ .op rtiar an.rlc ' "a. V / boh a bretan ri.p art ; 3 : .; ; : 'art ; or - ' ; sa : 'iaible f -j s>) jctrcr... it a t:.a; .dr't :-.a ; or.-; a:., i ; ri:. . b> ' .h,v, : ai ; a blue end to the a ad orb. 'Vo abb? ca a ' :r- u: rat C- . Svibl bs bad by aall;vy ra . .;. n-.t.-, c h bruM. Precicier till , u:fi ' V'b* C *) 0,.", '* ' ' > ^ ac in ropicne rbar:. tba :.- Ct. Z' , h .err.co ic aba a-b ," so. -*... .r ;:ith - '.0; ;oh. but ever so.. s- ...'ici ;. . -f* .a;.sics is pore' b- i . r I , ......... ;M-x. i-Uvs br; t> a bro.y-crc dispersed la a .7! . Both ligtt brumsnissicu curses end al-abCr. -sierogr-ipct orb it . The curve labeled "largo-*7 baa an irbo:: of 5 A) and the curvt , & . s: stall" has ah index of 3*1* lbs index in this cret is ch;.br , ni eolation. Particle Sisc Index ~ SbC^^ :Va : Optical Peru:',y as .y.t 17A y-.o a ' There is no asst*-'- . s- that the deg'., so cf .c'loaa: : ; , Vi : : /re both ths electron ,. barograph dispersin' j ." i V.,.- .-V; bn .it dispersions V the appearance of the . Vary::.. :;- be case , vre.,;.;.at the particle else index. b, isfei nation to. Mol^gbj^te,,(Vin^. { Mol- .(late orefnge pigment has a larger part ip Is si so and larger . raufibic gravity than those pigments previously discussed* This .moans ,i DUP050068894 . or . con las-:.'.. . . CL V .A' '.X .0 ' c xo: , ".* :. ' 1 1/ l"' nit v ,3 3 '3 i- :.coC. on c.:...a/ ... ui. . ' , V ... . ,;h- i`>. ;. *. .os.Icy curves' -. . . " ,'Vy i h 3>3 O' :v- x pc.Vl.,;-. ay ;-V - 3J5' Lf .. .... w . 1 '.. '.' . o '>'} oy vn;yy cm." ...1 ' ,r .. t : a Sw'.vaO.'v:. t< if i`-C'ji- ) le a yyololly v..x?.."-od a y le 1 case is <kfined by o k. ';.Oic Pc lisle laxle:.: 0- . .' 1 iV : ` = i.,: .. i ly'.n ;.. c. ,XJ l V. J L' ^v. U i; y oa t'.r.r r la.' . ,.? y.l 0,13 fho :'j>. ;yo,:..r ;;c. s onIcyi id a ,:c XCl '.C yyyiOy c x* W-,.t.s fyv.. 'v^Zyxy"e%'^/ !.. :.* >.i1 VA .';:>< , ;; f c -ce 1 c'"! ' vyj c Ole lr,r e in 11.-.. f- ...5.. ,i ' ' wv yau , c* t-* . V: 3.V'3 .n V .0 cct clvcelse 1 r.on .;:utx,'VO pht- lv.. K1 .. <3?. 1 i. . .v 0X3 in tic s. . s*-:' yvy t: i:..xeio T''l: ; ,x:' c 1 ' .' '' i :e ;; ,. r;sv:z iy - . ; 3.' * ..,* 10 ' < ?- 1O.K. sf;l'iy 3 -.3 Li 3 rt-" Oi". -1 - . . >; :.3 ' '1 , : i'-" iV '<.p. '.S e -i * i... ot ;i: L'.'. -33, :f 1 ', ' 'A * A :c v < V- 1 . * i y l'i. O'- 1 1. ' i .... '. 1 .."-.. y ffiC a v>.y. el. J . C- . ia X v-cyoc Cl,.JOS'C a t ;;; MJ. t'A m.. -;c- p-opy Oa tliG s.cp.xt: cm: .1 ;..v:yy';v olxoo : l-'-OOCl irl:..-:h V oe 1,1 at count vr >1 y 1:..a ..1 y'.'c i t,-* 3 .1 y yoiil- s. the fie surfa co meosnrsco V s As tico peralts no no \?<yj?h is planned to ; .la lylc, 1; v-xi:' \1 u^.*uro.rrfoifc-s over very ea&XI Xi^ht paths allcvd.;.-;; a rora diix.vt c-; prison of tho results obtained by the electron oier-o scope 1. 11;; transmission. SN PATOf SXmTXOIS Ho action is beini taken. 25 v o > - - DUP050068895 i*'ijguv>'3 ! RL~6Ao-.D 'I 0>./ ? A^r>. y j! 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