US4282126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyisobutylene rubber antifouling paint
Assignee: United States Department of the Navy
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Filing: 1979-08-24
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Granted: 1981-08-04
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Expires: 1999-08-24
Abstract
Abstract A polyisobutylene based acoustically transparent, camouflage antifouling nt for coating rubber substrates without adversely affecting the chemical stability and sound absorbing characteristics of such substrates. The composition essentially comprises, by weight, non-volatile ingredients including from about 2% to about 23% polyisobutylene polymer of molecular weight from about 81,000 to 99,000; from about 23% to about 29% rosin; from about 45% to about 57% tributyltin flouride and from about 9% to about 11% pigment.
Inventors
- 👤 Stephen D. Rodgers
- 👤 Bernard R. Appleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1606; C09D5/1612; C09D5/1625; C09D5/1631; C09D193/00; C09D193/04; C09D5/1656; C09D5/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
62 words
A camouflage antifouling composition essentially comprising, by weight, non-volatile ingredients including from about 2% to about 23% polyisobutylene polymer having a molecular weight from about 81,000 to about 99,000; from about 23% to about 29% rosin; from about 45% to about 57% tributyltin fluoride and from about 9% to about 11% pigment; the remainder of the composition being principally a volatile solvent.
Claim 2
Dependent Claim
62 words
A camouflage antifouling composition essentially comprising, by weight, non-volatile ingredients including from about 2% to about 23% polyisobutylene polymer having a molecular weight from about 81,000 to about 99,000; from about 23% to about 29% rosin; from about 45% to about 57% tributyltin fluoride and from about 9% to about 11% pigment; the remainder of the composition being principally a volatile solvent.
Claim 3
Dependent Claim
12 words
The composition according to claim 1 wherein said pigment comprises carbon black.
Claim 4
Dependent Claim
56 words
An antifouling composition consists essentially, by weight, of from about 2% to about 23% polyisobutylene polymer having an average molecular weight of from about 81,000 to about 99,000; from about 23% to about 29% rosin; from about 45% to about 57% tributyltin fluoride; and the remainder of the composition principally comprising pigment and a volatile solvent.
Claim 5
Dependent Claim
56 words
An antifouling composition consists essentially, by weight, of from about 2% to about 23% polyisobutylene polymer having an average molecular weight of from about 81,000 to about 99,000; from about 23% to about 29% rosin; from about 45% to about 57% tributyltin fluoride; and the remainder of the composition principally comprising pigment and a volatile solvent.
Claim 6
Dependent Claim
53 words
An antifouling composition for rubber substrates consists essentially, by weight, of from about 2% to about 23% polyisobutylene polymer having an average molecular weight of from about 81,000 to about 99,000; from about 45% to about 57% tributyltin fluoride; and the remainder of the composition principally comprising rosin, pigment, and a volatile solvent.
Claim 7
Dependent Claim
53 words
An antifouling composition for rubber substrates consists essentially, by weight, of from about 2% to about 23% polyisobutylene polymer having an average molecular weight of from about 81,000 to about 99,000; from about 45% to about 57% tributyltin fluoride; and the remainder of the composition principally comprising rosin, pigment, and a volatile solvent.
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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |