US4593055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Erodible ship-bottom paints for control of marine fouling
Assignee: Chugoku Marine Paints Ltd
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Filing: 1985-08-07
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Granted: 1986-06-03
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Expires: 2005-08-07
Abstract
Abstract A film-forming, water insoluble seawater erodible antifouling paint is described which is characterized by including a hydrolyzable organosilyl acrylate copolymer therein.
Inventors
- 👤 Melvin H. Gitlitz
- 👤 Howard H. Leiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:09
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D157/00; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1668
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
58 words
A antifouling paint for protecting marine surfaces, comprising in combination: (a) toxicant and (b) a film forming water insoluble, seawater erodible organotin free copolymer binder having recurring groups represented by the formula ##STR5## wherein X is H or CH 3 ; R is a substantially non-bioactive, organosilyl moiety, and B is the residue of an ethylenically unsaturated monomer.
Claim 2
Dependent Claim
58 words
A antifouling paint for protecting marine surfaces, comprising in combination: (a) toxicant and (b) a film forming water insoluble, seawater erodible organotin free copolymer binder having recurring groups represented by the formula ##STR5## wherein X is H or CH 3 ; R is a substantially non-bioactive, organosilyl moiety, and B is the residue of an ethylenically unsaturated monomer.
Claim 3
Dependent Claim
40 words
The paint of claim 1 wherein R is --SiR n R 3-n or --Si(OR N R 3-n ) 3 , where R' and R" are independently straight or branched chain alkyl C 1 -C 10 , or phenyl, and n=0-3.
Claim 4
Dependent Claim
30 words
The paint of claim 1 in which said organosilyl acrylate is selected from tributylsilyl acrylate, triphenylsilyl acrylate, phenyldimethylsilyl acrylate, diphenylmethylsilyl acrylate, tri-isopropylsilyl acrylate, or trimethylsilyl acrylate and the corresponding methacrylates.
Claim 5
Dependent Claim
14 words
The paint of claim 1 wherein said organosilyl acrylate is trimethylsilyl acrylate or methacrylate.
Claim 6
Dependent Claim
14 words
The paint of claim 1 wherein said organosilyl acrylate is phenyldimethylsilyl acrylate or methacrylate.
Claim 7
Dependent Claim
14 words
The paint of claim 1 wherein said organosilyl acrylate is diphenylmethylsilyl acrylate or methacrylate.
Claim 8
Dependent Claim
27 words
The paint of claim 1 wherein the organosilyl moiety is present in an amount of 10 to 80 parts on a mole basis of the copolymer binder.
Claim 9
Dependent Claim
13 words
The paint of claim 7 where said amount is 25 to 40 parts.
Claim 10
Dependent Claim
20 words
The paint of claim 1 where the erosion rate of the paint film is at least 2 microns per month.
Claim 11
Dependent Claim
19 words
A method of protecting a marine surface comprising coating said marine surface with an antifouling paint of claim 1.
Claim 12
Dependent Claim
44 words
A substantially organotin free, water insoluble, seawater erodible film forming copolymer, said copolymer having recurring groups represented by the formula ##STR6## wherein B is the residue of an ethylenically unsaturated monomer, X is H or CH 3 , and R is an organosilyl moiety.
Claim 13
Dependent Claim
44 words
A substantially organotin free, water insoluble, seawater erodible film forming copolymer, said copolymer having recurring groups represented by the formula ##STR6## wherein B is the residue of an ethylenically unsaturated monomer, X is H or CH 3 , and R is an organosilyl moiety.
Claim 14
Dependent Claim
40 words
The copolymer of claim 11 wherein R is --SiR n R 3-n or Si(OR n R 3-n ) 3 and R' and R" are independently a straight or branched chain alkyl C 1 -C 10 , or phenyl, and n=0-3.
Claim 15
Dependent Claim
24 words
The copolymer of claim 11 which includes a tributylsilyl acrylate, triphenylsilyl acrylate, phenyldimethylsilyl acrylate, diphenylmethylsilyl acrylate, tri-isopropylsilyl acrylate, or trimethylsilyl acrylate or the methacrylates.
Claim 16
Dependent Claim
12 words
The copolymer of claim 11 which includes a trimethylsilyl acrylate or methacrylate.
Claim 17
Dependent Claim
12 words
The copolymer of claim 11 which includes a phenyldimethylsilyl acrylate or methacrylate.
Claim 18
Dependent Claim
12 words
The copolymer of claim 11 which includes a diphenylmethylsilyl acrylate or methacrylate.
Claim 19
Dependent Claim
26 words
The copolymer of claim 11 where the organosilyl moiety is present in an amount of 10 to 80 parts on a mole basis of the copolymer.
Claim 20
Dependent Claim
26 words
The copolymer of claim 11 where the organosilyl moiety is present in an amount of 25 to 40 parts on a mole basis of the copolymer.
Claim 21
Dependent Claim
18 words
The copolymer of claim 11 which has a hydrolysis rate of at least 5×10 -4 meq. per hour.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |