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F C --143 O B JE C T IV E S INTERIM PROCESSES
THERMAL TREATMENT DISPERSION PURIFICATION NEW SURFACTANT PROGRAM
P . P . BURKS 8/20/81
000037
SPR001366
EID715237
O B JE C T IV E ; ELIM INATE OR CONTROL AT SAFE L E Y E LS FC-143 EXPOSURE AT SPRUANCE
AND IN TRADE.
A . D EFIN E TOXICOLOGICAL HAZARDS AND EXPOSURE L IM IT S B . COMMERCIALIZE INTERIM PROCESS C . COMMERCIALIZE NEW PACKING YARN (NEW SURFACTANT)
HASKaL-MID IVQ'81
R&D IV Q ' 81 PPD/R&D/MFG IV Q '82
STATUS:
A . HASKELL AND PPD ARE HANDLING TOXICOLOGICAL STU D IES. EXPECT SOME FEEDBACK IN SEPTEMBER.
B . INTERIM PROCESS WORK IS ON SCHEDULE FOR SEPTEMBER SCALEUP DECISION. WILL DISCUSS TODAY.
C . PPD REPORTED IN IT IA L PROMISING RESULTS WITH NEW SURFACTANT.
000038
SPR001367
EID715238
-2-
A . INTERIM PROCESS - THERMAL TREATMENT CONCEPT: EVAPORATE OR DECOMPOSE FC-143 PRESENT ON IMPREGNATED PACKING YARNS. BASIC DATA: ANALYTICAL RESEARCH DATA ( F I G . 1) SHOWED F IR S T ORDER REMOVAL OF FC-143 FROM YARN. CALCULATION OF RATE CONSTANTS AND EXTRAPOLATION WITH ARRHENIUS PLOT GAVE PREDICTION OF TEMPERATURE - TIM E REQUIREMENTS (FIG . 2) YARN TESTS CONFIRMED PREDICTIO N S:
TEST
TEMP.
OVEN HOT ROLLS
190C 276
TIM E TO REMOVE 99% OF FC-143
PREDICTED
OBSERVED
17 MIN.
<30 MIN.
9 SEC.
6 SEC.
PLANT OVEN TEST WITH YARN PACKAGES SHOWED
- 2 - 2 -1 /2 HOURS TO HEAT IN TERIO R OF PACKAGE TO OVEN TEMPERATURE (1 9 0 C )
____________
- 3 - 5 HOURS TO REMOVE A LL FC-143 ( F i g . 3 )
% FC -143 REMOVED
TEFLON KEVLAR
2 hr
75%
85
3 hr 5 hr
>99% >99%
96 >99
MECHANISM: LITERATURE AND IN IT IA L T EST S INDICATE DECARBOXYLATION.
ANALYTICAL RESEARCH CONFIRMING WITH GAS PHASE INFRARED.
000039
SPR001368
EID715239
-3 -
KEY PROBLEM: OVEN HEATED TEFLON YARNS ARE S T IF F E R . CAUSED BY "OVERDRYTNG" WHICH HARDENS DISPERSION COATING BY REMOVING RESIDUAL MOISTURE AND SOME TRITON SURFACTANT (A LIQ U ID ). - THINNER COATING ON KEVLAR I S LESS S T I F F . PACKING FA ILED INTERNAL T E S T : - TEFLON WOULD NOT SEA L AT STARTUP - KEVLAR F A ILE D AT BELOW NORMAL PUMP SPEED . HEATED YARNS DARKENED V IA OXIDATION OF TRITON.
ON-LINE HEATING: MAY BE ROUTE TO ACCEPTABLE PRODUCT. TEST WITH SEMIWORKS CRYSTA LLIZER RO LLS: - REMOVED FC -1 4 3 FROM TEFLON YARN IN 6 S E C . AT ^ 2 7 6 C . (4 0 YPM PROCESS) - PRODUCED YARNS LESS S T I F F , LE SS DISCOLORED THAN OVEN HEATED YARN.
YARNS OF KEVLAR AND TEFLON PRODUCED FOR PACKING T E S T .
LABORATORY RADIANT HEATER REMOVED 945! OF FC-143 IN 4 S E C . WITH 500C OVEN.
CONCLUSIONS: CAN ELIM IN ATE FC-143 V IA HEATING. PACKAGE HEATING IN OYENS DOES NOT APPEAR F E A S IB L E . ON-LINE HEATING WITH HOT ROLLS APPEARS F E A S IB L E , PENDING S E P T . PACKING T E S T . RADIANT HEATING APPEARS HARDER TO CONTROL FOR UNIFORM FC-143 REMOVAL WITHOUT MELTING YARN.
000040
SPROO1369
EID715240
-4 -
B . INTERIM PROCESSES - DISPERSION PURIFICATION CONCEPT: SEPARATE FC-143 FROM D ISPER SIO N , AFTER POLYMERIZATION, USING D IA LY S IS OR ION EXCHANGE. D IA LYSIS (ULTRAFILTRATION) SOLUTION FORCED THROUGH MEMBRANE UNDER PRESSURE: TEFLON PARTICLES RETAIN ED, FC-143 AND TRITON REMOVED. - FRESH TRITON SOLUTION ADDED TO MAINTAIN CONCENTRATION VENDOR TES T S IT E ID E N T IF IE D (.ABCOR) TEST AT ABCOR TO BEGIN APPROXIMATELY 9 / 1 . (DELAY IN COMPLETING N O N -LIA B ILITY CONTRACT) ION EXCHANGE ABSORPTION OF PERFLUOROOCTANOATE ION ON ANION-EXCHANGE R E S IN . - TEFLON P A R T IC LE S , NONIONIC TRITON NOT RETAINED. CONCEPT TESTED BY PPD IN 1966 - ACHIEVED ONLY 18% FC-143 REMOVAL AND RESIN PLUGGED COLUMN. IN IT IA L SPRUANCE TEST OBTAINED 91% REMOVAL AND GOOD FLOW RATE USING POROUS-BEAD RESIN USED FOR SPRUANCE DEIONIZED WATER. DISPERSION REMAINED STA BLE. CONCLUSIONS: PREDICT GOOD CHANCE TO REMOVE FC-143 WITH NO PRODUCT PROBLEMS, USING M ULTI-PASS U N ITS. A N TICIPA TE NO MAJOR PROCESS OR PRODUCT PROBLEMS, OR DELAYS IN SCALING UP WITH COMMERCIAL U N ITS, EITH ER PURCHASED OR RENTED. EXPECT TO RECOMMEND ION EXCHANGE SCALEUP I F IN IT IA L RESULTS CONFIRMED. - FEWER PROCESS AND PRODUCT PROBLEMS - SHORTEST LEAD TIM E TO INSTALL EQUIPMENT - HASKELL TESTING NOT B ELIEV ED NECESSARY
000041
SPR001370
EID715241
-5 -
C . NEW PACKING YARNS (MO FC -1 4 3 )
NEW SURFACTANT
FOUR CANDIDATES IN TESTIN G :
1) ALKYL SULFONATE: TELOMER A D ERIVATIVE - c f 3 Cc f 2 ) ch2 c h 2 so 3 H - IN IT IA L TECHNICAL TESTS PROMISING, AND LE SS TOXIC THAN FC-143 - COMPLETION OF TECHNICAL AND EMBRYOTOXICITY TESTS EXPECTED ABOUT 9 /1 5
BACKUPS NEOS (JAPAN ESE PHENYL SULFONATE) - LOW TO X IC IT Y - IN IT IA L TESTS PROMISING - EMBRYOTOXICITY RESULTS IVQ "C -9 " ANALOG TO C-8 (F C -1 4 3 ) - SIM ILA R TECHNICAL PROPERTIES TO C-8 - SIM ILAR TO XICITY EXPECTED - D IFFIC U LT SYNTHESIS NAFION INTERMEDIATE - TECHNICALLY INFERIOR TO PRIMARY CANDIDATE
CONCLUSIONS: PPD O PTIM ISTIC OF ID EN TIFYIN G A REPLACEMENT BY SEPTEMBER. WE NEED TO CONTINUE THERMAL TREATMENT AND DISPERSION P U R IFIC A TIO N .
0000^2
SPR001371
EID715242
-6-
PROGRAM
A . D EFIN E TOXICOLOGICAL HAZARDS
B . COMMERCIALIZE INTERIM PROCESS 1 . THERMAL TREATMENT - CONFIRM THAT HEATING DECOMPOSES FC-143 - CONFIRM DECOMPOSITION PRODUCTS ARE SAFE - DEFINE END-USE A C C EP T A B ILIT Y OF OVEN HEATED PACKAGES - D EFIN E F E A S IB IL IT Y OF HOT-ROLL HEATING - FC-143 REMOVAL - END-USE A C C EPTA B ILITY
2 . DISPERSION PURIFICATION - D EFIN E F E A S IB IL IT Y OF REMOVING FC-143 BY D IA L Y S IS OR ION EXCHANGE
3 . SCALEUP - SELECT ( 1 ) OR ( 2 ) FOR SCALEUP - INSTALL NECESSARY EQUIPMENT,OBTAIN CLEARANCE AND ADOPT
C . COMMERCIALIZE NEW PACKING YARNS WITH RESIN S THAT HAVE NEVER CONTAINED FC-143
1 . ALTERNATE SURFACTANT (PRIMARY CANDIDATE) - POLYMERIZATION, EMBRYOTOXICITY - DEVELOP PROCESS TO MANUFACTURE(C&P) - F IB E R S CHECKOUT - COMMERCIALIZE - COMMERCIALIZE BACKUP ( I F NEEDED)
2 . NON-AQUEOUS DISPERSION COATINGS - DEFINE F E A S IB IL IT Y - COMMERCIALIZE
3 . NON-TFE DISPERSION COATINGS - DEFINE F E A S IB IL IT Y - COMMERCIALIZE
RESP. HASKELL ANAL. HASKELL R&D
R&D
PPD
TIMING
SEPT-NOV.
AUGUST IVQ'81 COMPLETE
COMPLETE SEPT.
SEPT.
SEPT. IV Q '8 1
SEPT. IVQ'81 IQ '82 MID '82 LATE '82
IVQ'81 IV Q '8 2
IQ '82 IV Q '8 2
PPB spk 8/19/81
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SPROOl372
EID715243
FIGURE 1
EFFEC T OF HEAT ON F C - I4 3 I & T 9450d YARN
% FC-143 Remaining on Yarn
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1260
15.
16. DisDersion,#,Teflon
42 `
TE-3311
fd )
Informational Properties'^ Nominal
5
Lot
10
Package
15
Limits
1.
Limits * 1st Grade 2nd Grade
1. 2.
3.
4.
65..
7.
8.
190..
11. 12.
(a) Supply y a m is 1500-180-0 which, meets specifications of FPS No. SIY-1500/TFE-B-1.
(b) Second, grade tolerances are identical to first grade tolerances unless otherwise stated.
(c) Blank denotes satisfactory FPS. (d) Non-controlled, routine experience. (e) Product will continue to be labeled 9450-1260-0 until Marketing
recommends change.
0000G1
SPR001390
EID715261
nmusmiAL division
TEFLON FLUOEQGA T3DQN FTRKR
Recommended. End Use
(e) Count: 21000-1260-0 Impregnated/!rested
1. Compression Packing
Merge: Replaces Merge:
1T005 None
Effective Date: 4/1/81
Supersedes FPSNo.:SH-21000/T7E-3-1
FPS Page
No1.of
1i
SIT-21000/TFS-B-la
FDn&TTCP PRODUCT SlkNDARD/PRODUCT NEED SPECIFICAHON
(> FPS Control Properties ^ J Nominal
.1 . Denier
2
3.
4- .
5-
6
7. Dry Heat Shrk. 9 ?7aC,% 8. Finish, % Liquid 562 9. 10.
11.
12. Filament Count 15.
14.
21000
3.0 Max
14 1260
15.
16.
Informational Properties Cd) Nominal
Lot Limitb
2000
4
Lot Limits -
Package Limits
,>
1st Grad ?nd Grade FNS^c;
4000 +5000,-7000
+8, --4
+10, --5
3 Lot Limits
-3, +5 Pkg Limits
Package Limits 1st Grade 2nd Grade
1.
2.
3-
4.
5
6.
7
a.
190..
11.
12.
Dispersion, %,Teflon
TE-33II
36
5 10 15
(a) Supoly yarn is 1500-180-0 which meets specifications of FPS No. SIY11500/TFE-B-1. -
( b ) Second grade tolerances are identical to first grade tolerances unless otherwise stated.
(c) Blank denotes satisfactory FPS. d Non-controlled, routine experience. Product will continue to be labeled 9450-1260-0 until Marketing recommends change.
OOO ^kS
SPR001391
EID715262
u'
,^ 0 < ,
^ >
;r; (
[^ i "r' 0 1i ``JV i
_
0000S3
SPR001392
EID715263
