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US 5,830,963 AGranted
Fluorine-containing maleate, fluorine-containing fumarate, fluorine-containing copolymer and stainproofing agent
AssigneeDaikin Industries, Ltd.
InventorsMotonobu Kubo, Takashi Enomoto, Mitsuhiro Usugaya, Taro Sano
Life of this patent
Estimating the term…
Abstract
(1) A perfluoroalkyl diester of maleic acid or fumaric acid, (2) a copolymer obtained by polymerizing the perfluoroalkyl ester, a lower alkyl (meth)acrylate and, if necessary, styrene, and (3) a stainproofing agent comprising the copolymer give excellent water repellency, oil repellency and stainproof properties which have never been heretofore obtained.
Claims6
A stainproofing agent comprising a fluorine-containing copolymer, said fluorine-containing copolymer comprising:
- (A) at least one repeating unit derived from a monomer which is selected from the group consisting of an OH--and fluorine-containing maleate represented by the formula:
- ##STR39## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, an OH--and fluorine-containing fumarate represented by the formula:
- ##STR40## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, a fluorine-containing maleate represented by the formula:
- ##STR41## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, and A is an alkylene group having 1 to 4 carbon atoms or ##STR42## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 is an alkylene group having 1 to 4 carbon atoms, and a fluorine-containing fumarate represented by the formula:
- ##STR43## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, and A is an alkylene group having 1 to 4 carbon atoms or ##STR44## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 is an alkylene group having 1 to 4 carbon atoms;
- and
- (B) at least one repeating unit derived from an alkyl (meth)acrylate whose alkyl group has 1 to 6 carbon atoms.
4 more elements
A stainproofing agent comprising a fluorine-containing copolymer, said fluorine-containing copolymer comprising:
- (A) at least one repeating unit derived from an OH--and fluorine-containing maleate represented by the formula:
- ##STR45## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, or a fluorine-containing maleate represented by the formula:
- ##STR46## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, and A is an alkylene group having 1 to 4 carbon atoms or ##STR47## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 is an alkylene group having 1 to 4 carbon atoms,
- (B) at least one repeating unit derived from an alkyl (meth)acrylate whose alkyl group has 1 to 6 carbon atoms, and
- (C) a repeating unit derived from styrene.
2 more elements
A stainproofing agent comprising an OH--and fluorine-containing copolymer, said fluorine-containing copolymer comprising:
- (A) at least one repeating unit derived from an OH--and fluorine- containing fumarate represented by the formula:
- ##STR48## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, or a fluorine-containing fumarate represented by the formula:
- ##STR49## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, and A is an alkylene group having 1 to 4 carbon atoms or ##STR50## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 is an alkylene group having 1 to 4 carbon atoms,
- (B) at least one repeating unit derived from an alkyl (meth)acrylate whose alkyl group has 1 to 6 carbon atoms;
- and
- (C) a repeating unit derived from styrene.
3 more elements
A stainproofing agent comprising a fluorine-containing copolymer, said fluorine-containing copolymer comprising:
- (A) at least one repeating unit derived from a monomer which is selected from an OH--and fluorine-containing maleate represented by the formula:
- ##STR51## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, an OH--and fluorine-containing fumarate represented by the formula:
- ##STR52## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, a fluorine-containing maleate represented by the formula:
- ##STR53## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, and A is an alkylene group having 1 to 4 carbon atoms or ##STR54## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 is an alkylene group having 1 to 4 carbon atoms, or a fluorine-containing fumarate represented by the formula:
- ##STR55## wherein Rf is a perfluoroalkyl group having 3 to 21 carbon atoms, and A is an alkylene group having 1 to 4 carbon atoms or ##STR56## wherein R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 is an alkylene group having 1 to 4 carbon atoms,
- (B) two repeating units derived from an alkyl (meth)acrylate whose alkyl group has 1 to 6 carbon atoms, and
- (C) a repeating unit derived from styrene.
4 more elements
Dependencies are inferred from the claim text.