Patent US4383053A successfully refreshed from Google Patents.
US4383053A
Expired / Lapsed
US
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Antifouling paints having fumaric acid ester polymer
Assignee: NOF Corp
•
Filing: 1979-08-15
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Granted: 1983-05-10
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Expires: 1999-08-15
Abstract
Abstract Paint compositions to be used for preventing deposition of organisms on marine structures or fishingnets used in the sea contain, as a vehicle, polymers obtained by polymerizing at least one of the unsaturated acid ester monomers shown by the general formula R.sub.1 OOC--CX═CY--COOR.sub.2 wherein R 1 and R 2 are alkyl groups having 1-4 carbon atoms, and X and Y are hydrogen, alkyl groups having 1 or 2 carbon atoms or halogen, or copolymerizing the unsaturated acid ester monomers having the above described formula with unsaturated monomers copolymerizable therewith. The coating film of the paint compositions has a high strength and a moderate solubility in sea water and exhibits a very high antifouling activity for a long period of time.
Inventors
- 👤 Yoshihiro Honda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:27
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1668; C09D135/00; C09D135/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
Antifouling paints containing as a vehicle polymers having a weight average molecular weight of 1,000-100,000 obtained by polymerizing at least one of the unsaturated acid ester monomers shown by the general formula R.sub.1 OOC--CX═CY--COOR.sub.2 wherein R 1 and R 2 are alkyl groups having 1-4 carbon atoms, and X and Y are hydrogen, alkyl groups having 1 or 2 carbon atoms, or halogen, or by copolymerizing a major amount of the unsaturated acid ester monomers having the said formula with ethylenically unsaturated monomers free of free carboxyl and hydroxyl groups.
Claim 2
Dependent Claim
90 words
Antifouling paints containing as a vehicle polymers having a weight average molecular weight of 1,000-100,000 obtained by polymerizing at least one of the unsaturated acid ester monomers shown by the general formula R.sub.1 OOC--CX═CY--COOR.sub.2 wherein R 1 and R 2 are alkyl groups having 1-4 carbon atoms, and X and Y are hydrogen, alkyl groups having 1 or 2 carbon atoms, or halogen, or by copolymerizing a major amount of the unsaturated acid ester monomers having the said formula with ethylenically unsaturated monomers free of free carboxyl and hydroxyl groups.
Claim 3
Dependent Claim
20 words
Antifouling paints as claimed in claim 1, wherein the unsaturated acid ester monomers shown by the formula are cis isomers.
Claim 4
Dependent Claim
20 words
Antifouling paints as claimed in claim 1, wherein the unsaturated acid ester monomers shown by the formula are trans isomers.
Claim 5
Dependent Claim
29 words
Antifouling paints as claimed in claim 1, 2 or 3, wherein each of R 1 and R 2 in the formula is a methyl group or an ethyl group.
Claim 6
Dependent Claim
20 words
Antifouling paints as claimed in claim 1, 2, or 3, wherein X and Y in the formula are hydrogen atoms.
Claim 7
Dependent Claim
25 words
Antifouling paints as claimed in claim 1, 2 or 3, wherein at least one of X and Y in the formula is a methyl group.
Claim 8
Dependent Claim
25 words
Antifouling paints as claimed in claim 1, 2 or 3, wherein at least one of X and Y in the formula is a chlorine atom.
Claim 9
Dependent Claim
37 words
Antifouling paints as claimed in claim 1, 2 or 3, wherein the unsaturated monomers copolymerizable with the unsaturated acid ester monomers having the said formula are ethylenically unsaturated monomers not containing free carboxyl groups or hydroxyl groups.
References Cited (Backward Citations)
US2560588A
Cited
US3257360A
Cited
CA989998A
Cited
US4297137A
Cited
US4221839A
Cited
US4314850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |