Patent US4866106A successfully refreshed from Google Patents.
US4866106A
Expired / Lapsed
US
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Antifouling composition
Assignee: Waitomo Industrial Investments Ltd
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Filing: 1988-02-08
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Granted: 1989-09-12
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Expires: 2008-02-08
Abstract
Abstract An antifouling coating composition comprising a settable resin and a non-metallic algicide that does not react with the resin. The composition can be applied to flexible and rigid substrates and does not contain heavy metals.
Inventors
- 👤 Scott P. W. Pellow
- 👤 Barry S. Larkman
- 👤 Paul Stovicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:54
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1668; A; A01; A01N; A01N25/00; A01N25/24; C04; C04B; C04B41/00; C04B41/45; C04B41/46; C04B41/48; C04B41/4857; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/19; C08K9/00; C08K9/10; C09D5/1606; C09D5/1612; C09D5/1625; C04B2103/00; C04B2103/60; C04B2103/67
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
86 words
An antifouling coating composition for submergible articles comprising a polymer selected from a vinyl acetate homopolymer; a vinyl acetate-acrylic copolymer; a vinyl acetate-ethylene copolymer; and an acrylic polyvinyl chloride copolymer; and a non-metallic algicide consisting essentially of a quaternary ammonium compound having methyl groups and two alkyl groups alone or in combination with a second quaternary ammonium compound having methyl groups, an alkyl group and a benzyl group, said algicide being encapsulated in said polymer and being capable of being leeched from said composition during submersion.
Claim 2
Dependent Claim
86 words
An antifouling coating composition for submergible articles comprising a polymer selected from a vinyl acetate homopolymer; a vinyl acetate-acrylic copolymer; a vinyl acetate-ethylene copolymer; and an acrylic polyvinyl chloride copolymer; and a non-metallic algicide consisting essentially of a quaternary ammonium compound having methyl groups and two alkyl groups alone or in combination with a second quaternary ammonium compound having methyl groups, an alkyl group and a benzyl group, said algicide being encapsulated in said polymer and being capable of being leeched from said composition during submersion.
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein the polymer is a vinyl acetate-ethylene copolymer and the alkyl group in the quaternary ammonium compound has up to 16 carbon atoms.
Claim 4
Dependent Claim
10 words
A composition as claimed in claim 1 including a filler.
Claim 5
Dependent Claim
17 words
A composition as claimed in claim 3 in which the filler is selected from calcium talc, silica.
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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) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |