Patent US4465795A successfully refreshed from Google Patents.
US4465795A
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Antifouling coating composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1982-12-30
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Granted: 1984-08-14
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Expires: 2002-12-30
Abstract
Abstract An antifouling coating composition having excellent antifouling performance and coating film performances comprising a vehicle, an antifouling agent and optionally other additives characterized by containing, as at least a part of said vehicle, a polymer constituted of at least one monomer represented by the following general formula: <IMAGE> (I) wherein R is hydrogen or methyl group and R' is hydrogen or alkyl group having 1-12 carbon atoms, or of said at least one monomer and other vinyl monomer copolymerizable therewith, having a glass transition temperature of -30 DEG C. to 0 DEG C. and having a weight average molecular weight falling in the range of 20,000-200,000.
Inventors
- 👤 Katsuaki Sunano
- 👤 Yukio Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:08
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1668; C09D133/00; C09D133/04; C09D133/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
88 words
Antifouling coating composition comprising an antifouling agent dissolvable in sea water carried in a solution of sea water insoluble polymer of 100-80% by weight of at least one monomer represented by the formula: ##STR5## wherein R is hydrogen or methyl group and R' is hydrogen or alkyl group having 1-12 carbon atoms and 0-20% by weight of a vinyl monomer copolymerizable therewith, said polymer having a glass transition temperature of -30° C. to 0° C. and having a weight average molecular weight falling in the range of 20,000-200,000.
Claim 2
Dependent Claim
88 words
Antifouling coating composition comprising an antifouling agent dissolvable in sea water carried in a solution of sea water insoluble polymer of 100-80% by weight of at least one monomer represented by the formula: ##STR5## wherein R is hydrogen or methyl group and R' is hydrogen or alkyl group having 1-12 carbon atoms and 0-20% by weight of a vinyl monomer copolymerizable therewith, said polymer having a glass transition temperature of -30° C. to 0° C. and having a weight average molecular weight falling in the range of 20,000-200,000.
Claim 3
Dependent Claim
93 words
An antifouling coating composition comprising an antifouling agent dissolvable by sea water, carried in a solution of a sea water insoluble copolymer of not less than 80% by weight of at least one monomer represented by the formula: ##STR6## wherein R is hydrogen or methyl group and R' is hydrogen or alkyl group having 1-12 carbon atoms, and up to 20% of another vinyl monomer copolymerizable therewith, said copolymer having a glass transition temperature of -30° C. to 0° C. and having a weight average molecular weight falling in the range of 20,000-200,000.
Claim 4
Dependent Claim
93 words
An antifouling coating composition comprising an antifouling agent dissolvable by sea water, carried in a solution of a sea water insoluble copolymer of not less than 80% by weight of at least one monomer represented by the formula: ##STR6## wherein R is hydrogen or methyl group and R' is hydrogen or alkyl group having 1-12 carbon atoms, and up to 20% of another vinyl monomer copolymerizable therewith, said copolymer having a glass transition temperature of -30° C. to 0° C. and having a weight average molecular weight falling in the range of 20,000-200,000.
Claim 5
Dependent Claim
26 words
An antifouling coating composition according to claim 1 wherein R' in formula I ##STR7## is hydrogen, a methyl group, an ethyl group or a butyl group.
Claim 6
Dependent Claim
14 words
An antifouling coating composition according to claim 2, wherein said vinyl monomer is styrene.
Claim 7
Dependent Claim
25 words
An antifouling coating composition according to claim 2 wherein R' in formula (I) is hydrogen, a methyl group, an ethyl group or a butyl group.
Claim 8
Dependent Claim
35 words
An antifouling composition according to claim 5 wherein the monomer of formula (I) is ethyl acrylate, butyl acrylate, methyl methacrylate or ethyl methacrylate and the vinyl monomer copolymerizable therewith is 2-hydroxyethyl methacrylate or dimethylaminoethyl methacrylate.
Claim 9
Dependent Claim
22 words
An antifouling coating composition according to claim 2 wherein the copolymer is a copolymer of ethyl methacrylate, 2-hydroxyethyl methacrylate and ethyl acrylate.
Claim 10
Dependent Claim
21 words
An antifouling coating composition according to claim 2 wherein the copolymer is a copolymer of methyl methacrylate, dimethylaminoethyl methacrylate and ethylacrylate.
Claim 11
Dependent Claim
20 words
An antifouling coating composition according to claim 1 wherein the polymer is a copolymer of methyl methacrylate and butyl acrylate.
Claim 12
Dependent Claim
30 words
An antifouling coating composition according to claim 1 wherein the antifouling agent is at least one of cuprous oxide, copper rhodanate, zinc dimethyldithiocarbamate, tetramethylthiuram disulfide, triphenyltin hydroxide and tributyltin oxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |