US4701508A
Expired / Lapsed
US
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Solvent soluble fluorine-containing polymer, coating composition containing the same and coating process thereof
Assignee: Mitsui Chemicals Inc
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Filing: 1985-12-12
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Granted: 1987-10-20
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Expires: 2005-12-12
Abstract
Abstract A solvent soluble fluorine-containing polymer according to the present invention is a copolymer characterized by (i) consisting substantially of (a) fluoroolefin, (b) vinyl ether, and (c) an organosilicon compound having an olefinically unsaturated bond and a hydrohyzable group, (ii) said copolymer comprising, based on the total mole number of said (a)-(c) in the copolymer, 30-70 mol % of (a), 20-60 mol % of (b) and 1-25 mol % of (c) and (iii) said copolymer having a number average molecular weight (Mn) of 3000-200000 as measured by gel permeation chromatography. Further, according to the present invention, a coating composition having excellent weathering resistance and solvent resistance comprising the above-memtioned solvent soluble fluorine-containing polymer and organic solvent is also provided. In addition a coating process of said coating composition is also provided.
Inventors
- 👤 Shirou Homma
- 👤 Takashi Izumi
- 👤 Sakae Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:13
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C08; C08F; C08F214/00; C08F214/18; C08F214/186; C08F214/188; C08K; C08K5/00; C08K5/54
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A solvent soluble fluorine-containing polymer which is: (i) a copolymer consisting essentially of (a) a fluoroolefin having 2 to 3 carbon atoms, (b) a vinyl ether selected from the group consisting of alkyl vinyl ether and cycloalkyl vinyl ethers, and (c) an organosilicon compound in which the organo portion of the molecule is a hydrocarbon containing unsaturated double bonds and which compound contains a hydrolyzable group, (ii) said copolymer comprising, based on the total mole number of said (a)-(c) in the copolymer, 30-70 mol% of (a), 20-60 mol% of (b) and 1-25 mol% of (c), and (iii) said copolymer having a number average molecular weight (mn) of 3,000-200,000 as measured by gel permeation chromatography.
Claim 2
Dependent Claim
114 words
A solvent soluble fluorine-containing polymer which is: (i) a copolymer consisting essentially of (a) a fluoroolefin having 2 to 3 carbon atoms, (b) a vinyl ether selected from the group consisting of alkyl vinyl ether and cycloalkyl vinyl ethers, and (c) an organosilicon compound in which the organo portion of the molecule is a hydrocarbon containing unsaturated double bonds and which compound contains a hydrolyzable group, (ii) said copolymer comprising, based on the total mole number of said (a)-(c) in the copolymer, 30-70 mol% of (a), 20-60 mol% of (b) and 1-25 mol% of (c), and (iii) said copolymer having a number average molecular weight (mn) of 3,000-200,000 as measured by gel permeation chromatography.
Claim 3
Dependent Claim
34 words
The solvent soluble fluorine-containing polymer according to claim 1 wherein said copolymer has a glass transition temperature (Tg) in the range of from -60° to 20° C. as measured with a differential scanning calorimeter.
Claim 4
Dependent Claim
17 words
The solvent soluble fluorine-containing polymer according to claim 1 wherein said vinyl ether is alkyl vinyl ether.
Claim 5
Dependent Claim
26 words
The solvent soluble fluorine-containing polymer according to claim 3 wherein said alkyl vinyl ether is a lower alkyl vinyl ether having 8 or less carbon atoms.
Claim 6
Dependent Claim
104 words
The solvent soluble fluorine-containing polymer according to claim 1 wherein said organosilicon compound (c) is either one of compounds represented by the formulas R 1 R 2 SiY 1 Y 2 (1), R 1 XSiY 1 Y 2 (2) and R 1 SiY 1 Y 2 Y 3 (3) wherein R 1 and R 2 , which may be the same or different, individually represent a hydrocarbon group having olefinically unsaturated bonds, X represents an organic radical having no olefinically unsaturated bonds, and Y 1 , Y 2 and Y 3 , which may be the same or different, individually represent a hydrolyzable group.
Claim 7
Dependent Claim
25 words
The solvent soluble fluorine-containing polymer according to claim 5 wherein the hydrolyzable group in the organosilicon compound (c) is vinyl trialkoxy silane or trialkoxyvinyloxyalkyl silane.
Claim 8
Dependent Claim
33 words
The solvent soluble fluorine-containing polymer according to claim 5 wherein X is selected from the group consisting of methyl, ethyl, propyl, tetradecyl, octadecyl, phenyl, benzyl and tolyl and said groups substituted by halogen.
References Cited (Backward Citations)
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