US4012347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifouling composition
Assignee: Arkema Inc
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Filing: 1975-11-03
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Granted: 1977-03-15
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Expires: 1995-11-03
Abstract
Abstract The antifouling performance of certain asymmetric triorganotin compounds exhibiting one or two cycloalkyl radicals bonded directly to the tin atom is significantly improved when these compounds are incorporated into coating compositions containing a film-forming polymer and rosin in a specified range of proportions.
Inventors
- 👤 Melvin H. Gitlitz
- 👤 Aaron Freiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1606; C09D5/1612; C09D5/1625; C09D5/1631
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
169 words
An antifouling coating composition comprising between 5 and 30% by weight of film-forming synthetic organic film-forming polymer and rosin, a pigment, between 10 and 40% by weight of an organic liquid diluent and between 1 and 25% by weight of a triorganotin compound of the formula R a 1 R 3-a 2 SnX or (R a 1 R 3-a 2 Sn) 2 Y, wherein R 1 is selected from the group consisting of alkyl radicals containing between 1 and 4 carbon atoms, R 2 is a cycloalkyl radical containing between 5 and 8 cyclic carbon atoms, X is selected from the group consisting of fluorine, chlorine, bromine, hydroxyl, alkoxy (--OR 3 ), thioalkoxy (--SR 3 ) and carboxyl radicals, (--OOCR 3 ), wherein R 3 is alkyl and contains between 1 and 12 carbon atoms, Y is oxygen or sulfur and a is the integer 1 or 2, and wherein the weight of rosin in said composition is between 0.25 and 3 times the weight of said film-forming polymer.
Claim 2
Dependent Claim
169 words
An antifouling coating composition comprising between 5 and 30% by weight of film-forming synthetic organic film-forming polymer and rosin, a pigment, between 10 and 40% by weight of an organic liquid diluent and between 1 and 25% by weight of a triorganotin compound of the formula R a 1 R 3-a 2 SnX or (R a 1 R 3-a 2 Sn) 2 Y, wherein R 1 is selected from the group consisting of alkyl radicals containing between 1 and 4 carbon atoms, R 2 is a cycloalkyl radical containing between 5 and 8 cyclic carbon atoms, X is selected from the group consisting of fluorine, chlorine, bromine, hydroxyl, alkoxy (--OR 3 ), thioalkoxy (--SR 3 ) and carboxyl radicals, (--OOCR 3 ), wherein R 3 is alkyl and contains between 1 and 12 carbon atoms, Y is oxygen or sulfur and a is the integer 1 or 2, and wherein the weight of rosin in said composition is between 0.25 and 3 times the weight of said film-forming polymer.
Claim 3
Dependent Claim
19 words
An antifouling coating composition as described in claim 1 wherein R 1 represents butyl and R 2 represents cyclohexyl.
Claim 4
Dependent Claim
17 words
An antifouling coating composition as described in claim 1 wherein X is fluorine, chlorine, bromine or iodine.
Claim 5
Dependent Claim
13 words
An antifouling coating composition as described in claim 1 wherein Y is sulfur.
Claim 6
Dependent Claim
17 words
An antifouling composition as described in claim 1 wherein the film-forming polymer is a vinyl chloride copolymer.
References Cited (Backward Citations)
US2592655A
Cited
US2579610A
Cited
FR1253725A
Cited
US3236793A
Cited
US3615744A
Cited
US3789057A
Cited
US3794501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |