Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-02-13
1998-11-03
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526245, C08F 1820
Patent
active
058309632
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a fluorine-containing maleate, a fluorine-containing fumarate, a fluorine-containing copolymer and a stainproofing agent.
RELATED ART
In order to impart water- and oil-repellency and stainproof properties to textile products (e.g. carpet, etc.), various stainproofing agents have hitherto been suggested.
Japanese Patent Kokoku Publication No. 8606/1973 discloses that stainproof properties are imparted by treating a fabric with a homopolymer obtained by polymerizing an ester of an unsaturated carboxylic acid having a perfluoroalkyl group at both ends. However, this homopolymer is insufficient in stainproof properties.
Japanese Patent Kokoku Publication No. 37670/1976 discloses that stainproof properties are imparted to fibers by treating the fibers with a polymer obtained by polymerizing (i) an ester of maleic or fumaric acid having a perfluoroalkyl group at one end and an aliphatic or aromatic group having no fluorine atom at the other end with (ii) the other polymerizable unsaturated compound. Since one end of the ester of maleic or fumaric acid has no fluorine atom, its polymerizablity is good. However, this polymer is insufficient in water- and oil-repellency and is also insufficient in stainproof properties.
U.S. Pat. No. 3,594,353 discloses that a water repellency and stainproof properties to oil are imparted to fibers by treating the fibers with a polymer obtained by homopolymerizing an ester of itaconic acid having a perfluoroalkyl group at both ends or one end or copolymerizing said ester with the other polymerizable unsaturated compound. However, this polymer is insufficient in water- and oil-repellency and stainproof properties.
Japanese Patent Kokai Publication No. 105723/1993 discloses that a water- and oil-repellency is imparted to fibers by treating the fibers with a polymer obtained by copolymerizing a fumarate ester having a bulky branched alkyl group at one end and a perfluoroalkyl group at the other end with the other copolymerizable unsaturated compound. However, this copolymer is insufficient in water- and oil-repellency and stainproof properties.
None of stainproofing agents which have hitherto been proposed presently has sufficient water- and oil-repellency and stainproof properties.
SUMMARY OF THE INVENTION
A first object of the present invention is to provide a stainproofing agent having sufficient water- and oil-repellency and stainproof properties.
A second object of the present invention is to provide a polymer constituting the stainproofing agent.
A third object of the present invention is to provide a monomer which affords said polymer.
The present invention provides a stainproofing agent comprising a fluorine-containing copolymer, in which said fluorine-containing copolymer comprises: from the group consisting of an OH-- and fluorine-containing maleate ##STR1## OH-- and fluorine-containing fumarate represented by the formula: ##STR2## fluorine-containing maleate represented by the formula: ##STR3## is an alkylene group having 1 to 4 carbon atoms or ##STR4## (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: ##STR5## is an alkylene group having 1 to 4 carbon atoms or ##STR6## (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 alkyl group has 1 to 6 carbon atoms. (Meth)acrylate means acrylate or methacrylate.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an IR chart of the product obtained in Synthesis Example 1.
FIG. 2 is an IR chart of the product obtained in Synthesis Example 2.
DETAILED DESCRIPTION OF THE INVENTION
In the copolymer of the present invention, the repeating unit (A) may be the above fluorine-containing maleate or fumarate which has an OH group or no OH group. It is preferred that the repeating unit (A) has the OH group. The reason why it is prefe
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patent: 3438946 (1969-04-01), Lichstein et al.
patent: 3594353 (1971-07-01), Domba
patent: 3671574 (1972-06-01), Knell et al.
patent: 5250583 (1993-10-01), Kawaguchi et al.
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Answer 5 of 5, 1985: 97050 doc. No. 102: 97050--Dainippon JP82-227078, 82, 12, 27--Abstract (in-house) pp. 13-16.
Enomoto Takashi
Kubo Motonobu
Sano Taro
Usugaya Mitsuhiro
Daikin Industries Ltd.
Sarofim N.
Schofer Joseph L.
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