KELLER
AND
IIECKMAN
LLP
SERVING
BUSINESS
THROUGH
LAW
AND
SCIENCE
®
April16,
2003
Ms.
Margaret
Schneider
U.
S.
Environmental
Protection
Agency
1201
Constitution
Avenue,
NW
Room
3166
Washington,
DC
20460
Dear
Ms.
Schneider:

On
behalfofthe
Asahi
Glass
Fluoropolymers
USA,
Inc.;
Daikin
America,
Inc.;
Dyneon
LLC;
and
E.
I.
du
Pont
de
Nemours
and
Company,
we
are
transmitting
a
revised
table
showing
the
fluoropolymers
and
fluoroelastomers
which
may
be
made
with
ammonium
perfluorooctanoate,
and
the
monomers
used
to
make
them.
Chemical
Abstracts
Service
Registry
Number
(
CASRN)
for
both
polymers
and
monomers
are
provided
as
well
where
available.

This
replaces
the
document
contained
in
the
Letter
of
Intent
sent
to
Steve
Johnson
on
March
14,
2003,
as
Addendum
I.
The
original
document
has
several
minor
typographical
errors
in
it.

Ifyou
have
any
questions
about
the
draft
Letter
ofIntent,
please
contact
Lynne
Harris,
of
The
Society
ofthe
Plastics
Industry,
Inc.
(
SPI)
at
202­
974­
5217.

Enclosure
cc:
Allen
Weidman,
SPI
Lynne
R.
Harris,
SPI
1001
G
STREET.
N.
W.
SUITE
500
WEST
WASHINGTON.
D.
C.
20001
TEL.
202.434.4100
FAX
202.434.4646
WWW.
EHLAW.
COM
WRITERS
DIRECT
ACCESS
David
G.
Sarvadi
(
202)
434­
4249
arvadi@
khlaw.
corn
WASHINGTON,
D.
C.
BRUSSELS
SAN
FRANCISCO
Addendum
I
March
14,
2003
Page
1
of
1
Addendum
I
Fluoropolymers
and
Fluoroelastomers
Which
May
Be
Made
With
APFO
Polymer
family
CAS
Number
Monomers
~
1uoropolymers
~
TFE
9002­
84­
0
TFE
~
EP
~
5067­
11­
2
[
FE,
HFP
~
FA
26655­
00­
5
[
FE,
PMVE
J'HV
25190­
89­
0
[
FE,
HFP,
VDF
~
TFE
68258­
85­
5
[
FE,
E
~
ITE*
35560­
16­
8
[
FE,
HFP,
E
~
luoroelastomers
C~
polymers
901
1­
17­
0
VDF,
HFP
Terpolymers
25190­
89­
0
TFE,
HFP,
VDF
3ase
resistant
elastomers
~
54675­
89­
7,
~
7029­
05­
6
TFE,
VDF,
P
~
FE,
P
E~
erfluoroe1astomers
26425­
79­
6
[
FE,
PMVE
CTFE
elastomers
9010­
75­
7
~
TFE,
VFD
Low
temperature
elastomers
[
FE,
VDF
Monomers
Used
in
Fluoropólymers
Acronym
Monomer
name
CAS
Number
CTFE
Chiorotrifluoroethylene
79­
38­
9
TEE
Tetrafluoro
ethylene
116­
14­
3
HFP
Hexafluoropropylene
116­
15­
4
VDF
Vinylidene
fluoride
75­
38­
7
PMVE
Perfluoromethyl
vinyl
ether
1187­
93­
5
PPVE
Perfluoropropyl
vinyl
ether
1623­
05­
8
E
Ethylene
74­
85­
1
P
Propylene
115­
07­
1
