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US4690968A
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Fluoroolefin copolymer, process for production thereof and composition containing said copolymer
Assignee: DIC Corp
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Filing: 1986-10-22
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Granted: 1987-09-01
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Expires: 2006-10-22
Abstract
Abstract A fluoroolefin copolymer having an inherent viscosity of from 0.05 to 2.0 dl/g and composed of (I) 10 to 70 mole % of monomeric units derived from a fluoroolefin represented by the general formula ##STR1## wherein X is H, Cl, F, CF 3 , OCF 3 or OC 3 F 7 , (II) 5 to 60 mole % of monomeric units derived from a vinyl carboxylate represented by the general formula ##STR2## wherein R 1 represents an aliphatic, aromatic or alicyclic hydrocarbon group having 1 to 17 carbon atoms, (III) 5 to 70 mole % of monomeric units derived from a vinyl ether having an alkyl group with 1 to 8 carbon atoms, and (IV) 0 to 30 mole % of monomeric units derived from a hydroxyl-containing vinyl ether represented by the general formula ##STR3## wherein R 2 represents an alkylene group having 1 to 6 carbon atoms.
Inventors
- 👤 Tomomasa Mitani
- 👤 Ichiro Mihata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:58
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08F; C08F214/00; C08F214/18; C08F214/186; C08F214/188
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
151 words
A coating composition comprising a fluoroolefin copolymer having an inherent viscosity of 0.05 to 2.0 dl/g and composed of (I) 10 to 70 mole% of monomeric units derived from a fluoroolefin represented by the general formula ##STR12## wherein X is H, Cl, F, CF 3 , OCF 3 or OC 3 F 7 , (II) 5 to 60 mole% of monomeric units derived from a vinyl carboxylate represented by the general formula ##STR13## wherein R 1 represents an aliphatic, aromatic or alicyclic hydrocarbon group having 1 to 17 carbon atoms, (III) 5 to 70 mole% of monomeric units derived from a vinyl ether having an alkyl group with 1 to 8 carbon atoms, and (IV) 0 to 30 mole% of monomeric units derived from a hydroxyl-containing vinyl ether represented by the general formula ##STR14## wherein R 2 represents an alkylene group having 1 to 6 carbon atoms; and an organic solvent.
Claim 2
Dependent Claim
151 words
A coating composition comprising a fluoroolefin copolymer having an inherent viscosity of 0.05 to 2.0 dl/g and composed of (I) 10 to 70 mole% of monomeric units derived from a fluoroolefin represented by the general formula ##STR12## wherein X is H, Cl, F, CF 3 , OCF 3 or OC 3 F 7 , (II) 5 to 60 mole% of monomeric units derived from a vinyl carboxylate represented by the general formula ##STR13## wherein R 1 represents an aliphatic, aromatic or alicyclic hydrocarbon group having 1 to 17 carbon atoms, (III) 5 to 70 mole% of monomeric units derived from a vinyl ether having an alkyl group with 1 to 8 carbon atoms, and (IV) 0 to 30 mole% of monomeric units derived from a hydroxyl-containing vinyl ether represented by the general formula ##STR14## wherein R 2 represents an alkylene group having 1 to 6 carbon atoms; and an organic solvent.
Claim 3
Dependent Claim
23 words
The composition of claim 1 wherein the vinyl carboxylate is a vinyl ester of a carboxylic acid having 9 to 10 carbon atoms.
Claim 4
Dependent Claim
33 words
The composition of claim 1 or 2 wherein the curing agent is present and is selected from the group consisting of aminoplasts, polyisocyanate compounds, blocked polyisocyanate compounds, polybasic acids and polybasic acid anhydrides.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein the fluoroolefin is selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene and hexafluoropropylene.
Claim 6
Dependent Claim
37 words
The composition of claim 1 wherein the vinyl carboxylate is selected from the group consisting of vinyl acetate, vinyl propionate, vinyl butyrate, vinyl pivalate, vinyl caproate, vinyl laurate, vinyl stearate, vinyl benzoate, vinyl p-t-butylbenzoate and vinyl salicylate.
Claim 7
Dependent Claim
50 words
The composition of claim 1 wherein the vinyl ether is selected from the group consisting of methyl vinyl ether, ethyl vinyl ether, n-propyl vinyl ether, isopropyl vinyl ether, n-butyl vinyl ether, isobutyl vinyl ether, t-butyl vinyl ether, n-pentyl vinyl ether, n-hexyl vinyl ether, n-octyl vinyl ether, and 2-ethylhexyl vinyl ether.
Claim 8
Dependent Claim
28 words
The composition of claim 1 wherein the fluoroolefin copolymer contains 5-30 mole% of the monomeric units (IV) and has a hydroxyl value of 20 to 200 mg KOH/g.
Claim 9
Dependent Claim
46 words
The composition of claim 7 wherein the hydroxyl containing vinyl ether is selected from the group consisting of hydroxymethyl vinyl ether, hydroxyethyl vinyl ether, 3-hydroxypropyl vinyl ether, 2-hydroxypropyl vinyl ether, 4-hydroxybutyl vinyl ether, 3-hydroxybutyl vinyl ether, 2-hydroxy-2-methylpropyl vinyl ether, 5-hydroxypentyl vinyl ether and 6-hydroxyhexyl vinyl ether.
Claim 10
Dependent Claim
42 words
The composition of claim 1 wherein the organic solvent is selected from the group consisting of aromatic hydrocarbons, ketones, acetic acid esters and alcohols and is added to the copolymer in a ratio of copolymer to solvent of from 95:5 to 5:95.
Claim 11
Dependent Claim
34 words
The composition according to claim 3 wherein the curing agent is an aminoplast and is added to the copolymer in a ratio of copolymer to curing agent of from 50:50 to 99:1 by weight.
Claim 12
Dependent Claim
36 words
The composition according to claim 3 wherein the curing agent is a polyisocyanate compound and is added to the copolymer in a ratio of copolymer to curing agent of from 1:0.2 to 1:3 OH/NCO equivalent ratio.
Claim 13
Dependent Claim
38 words
The composition according to claim 3 wherein the curing agent is a blocked polyisocyanate compound and is added to the copolymer in a ratio of copolymer to curing agent of from 1:0.2 to 1:3 OH/blocked NCO equivalent ratio.
Claim 14
Dependent Claim
36 words
The composition according to claim 3 wherein the curing agent is a polybasic acid and is added to the copolymer in a ratio of copolymer to curing agent of from 1:0.2 to 1:2 OH/COOH equivalent ratio.
Claim 15
Dependent Claim
40 words
The composition according to claim 3 wherein the curing agent is a polybasic acid anhydride and is added to the copolymer in a ratio of copolymer to curing agent of from 1:0.2 to 1:2 OH/carboxylic acid anhydride group equivalent ratio.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |