Document 3Jgj0XjDv2rnGMbD6jEgLj4NJ
AR226-2377
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E. 1. DU FONT DE NEMOURS S COMPANY
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pp&a DEPARTMENT .
WtLMlNGTON. DELAWARE 19^-ENTs a REGULATORY.
AFFAIRS DIVISION
W-ASTIC PRODUCTS AND RESINS DEPARTMENTA.U3 21976 - .
R. J... DAHLEN .. 2,..- ra're
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-Mft-ggH-ay.T. LAB
LAB
B.D. <tM& E.L. P.B. H-C. A.DV.N. HJ.
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P.V..
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HyiltrEWOOD
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C. K. IKEDA
PSF DEPARTMENT
B-2266
-Sill} 33'^ 1976
Section
la our
221.2555
meet-ing' on:- .Tune IJ.- was self cs&chi t-haafc-i^.j/carfafcxmmduct
speciicataza tests; ore: -sisAejc&d aa'= araaie- mar. high
solids dispersion aad on -f-iLir-ishj&d FfiJ?; marfE: w-i bh C^-^^kLsaa-exaaLag-.-a^ent.
We have completed j:he-ss.~ te-s-ts-as-Kasiio-a-s s'i': xiLlnsm-sbests
specified in 121.2555 and f-inji-tha. boish C-hs 1.EE -soal .Qie PE-P .ace. well within, the limits specifie.d. .-J- kziow. of~ jrjgi^-eT-^mj'-r-yJsarsason (/hy finished products Blade from- .the^f ce s-n^- ygirijJ rtrrfc-3srz3i-a:r3ic. WAtA 122.2555.
.The 2eve2 o^ exi
abless rnT .TT tt.te.cs3 Efe= nraaie^ AaMin hi?a
solids TD-37X was as follows:
Solvent (1)
Total (2)
E..
able-s ...icv/in2
cactedf3; jrnie ,- .'ay/in2
.Heptane
J3.072
Sthyl Acetate
50% Bthanol Water
. 0.205 ..0.039
--0.22
S
.Si.DOOJ-9 gto
00\\
SUD0012
VO
-t^
(1) All solvents were ciist-illed.
(2) Corrected for solvent blanks
FDA- jnaxiauuit. aaLLai/abJs^- e.y.t'rTixsta.bles
is 0.2. (3) FDA maximum allowable fluoride is 0.03.
EID942018
C. 1C. XKSDA
2
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July 30, 1976
The thermal instability index for TD-37X high solids sintered
product as determined by ASTM D1457-56T was 20.4, well below the maxi mum specified value of 50.
The FEP cubes produced froa the added C-3 recipe had the .following .level of extractables (duplicate determinations) :
So^vent^^
Total (2) Extractables, nig/in2
extracted^3) Fluoride, mg/in2
Heptane
0.054/0.031
Bthul Acetate SO* Sthanol Water
0.018/0.026 0.059/0.11 0.064/0.059
0.00055/0.001 0.00062/0.00064
' All solvents were distilled. Corrected ror solvent blank. FDA is 0.2. FDA .maximum allowable jfluoride is
maxiniuffl
0.03.
allowable
extractables
minutes
The melt viscosity holdup to 7.77 arter
of
30
the FEP Minutes
changed from 8.77 holdup at 372"C.
after five
This is a
12X chang-e. The PDA maxiaun allowable change is 50%. The infrared
index requirement is also satis-fied.
These data confirm
processes have no effect
that
upon
the the
minor chanyes being- inade in
ability or these products to
be
our converted
into
finished, products
which
meet
all
the
.t-eguirements
of
PDA regulation 121.2555.
BM/epr
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B. IfOtfCURE
RESEARCH MANAGER
FI.UOROCARBONS DIVISION
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EID942019