A 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):
R
f
—(CH
2
CF
2
)
q
(CH
2
CH
2
)
r
-Z-C(O)—C(R)═CH
2
(I)
wherein
q and r are each independently integers of 1 to 3;
R
f
is a linear or branched perfluoroalkyl group having 2 to 6 carbon atoms;
Z is —O—, —NR
1
— or —S—;
R is hydrogen, Cl, F or CH
3
;
R
1
is hydrogen, or a C
1
to C
4
alkyl; 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 6 to 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 as defined above;
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; said composition providing oil repellency, water repellency, and stain resistance to substrates contacted therewith; and a method for treating substrates with such copolymer compositions; are disclosed.
本发明涉及一种组合物,其中单体按重量百分比共聚合,其中:(a)约20%至约95%的单体或单体混合物,其
化学式为(I):Rf—(
CH2CF2)q( )r-Z-C(O)—C(R)═ (I),其中inq和r分别是1至3的整数;Rf是具有2至6个碳原子的线性或支链
全氟烷基;Z是—O—,—NR1—或—S—;R是氢、
氯、
氟或
CH3;R1是氢或C1至C4烷基;以及(b)约5%至约80%的至少一种:(i)具有6至18个碳原子的线性、支链或环状烷基的烷基(甲基)
丙烯酸酯单体;或(ii)
化学式(II)的单体:(R2)2N—R3—O—C(O)—C(R)═ (II),其中R如上所定义;每个R2独立地是C1至C4烷基;R3是双价的线性或支链C1至C4亚烷基;其中氮的盐化程度为约40%至100%;或(iii)其混合物;所述组合物使与其接触的基材具有抗油、抗
水和防污性;以及使用这种共聚物组合物处理基材的方法。