申请人:Qiu Weiming
公开号:US20090291222A1
公开(公告)日:2009-11-26
A copolymer composition comprising monomers copolymerized in the following percentages by weight:
(a) from about 20% to about 95% of a monomer, or mixture of monomers, of formula (I):
C
n
F
2n+1
(CH
2
)
x
[(CF
2
CF
2
)
y
(CH
2
CH
2
)
z
]
m
-L-C(O)—C(R)═CH
2
(I)
wherein
R is H, Cl, F or CH
3
,
L is O, S, NH, S—(CH
2
)
r
O, S—(CH
2
)
r
NH, OC(O)NH—CH
2
CH
2
O, NHC(O)NHCH
2
CH
2
O, S—(CH
2
)
r
OC(O)NHCH
2
CH
2
O, or S(CH
2
)
r
NHC(O)NHCH
2
CH
2
O, and
(b) from about 5% to about 80% of at least one of:
(i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of from about 6 to about 18 carbons; or
(II) a monomer of formula (II)
(R
2
)
2
N—R
3
—O—C(O)—C(R)═CH
2
(II)
wherein
R is H, Cl, F or CH
3
,
each R
2
is independently a C
1
to C
4
alkyl; and
R
3
is a divalent linear or branched C
1
to C
4
alkylene; and wherein the nitrogen is from about 40% to 100% salinized; or
(iii) a mixture thereof.