US4526932A
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Antifouling agent
Assignee: Nitto Kasei Co Ltd
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Filing: 1983-04-06
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Granted: 1985-07-02
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Expires: 2003-04-06
Abstract
Abstract An antifouling agent comprising as an antifouling component a substantially linear triorganotin-containing copolymer containing (a) at least one kind of N-coordinated triorganotin-containing recurring units of the formula (Ia) or (Ib) represented in the specification and (b) comonomer recurring units derived from at least one ethylenic vinyl compound as a comonomer. The antifouling agent is applied to a structure which is needed to be protected from fouling organisms to form a film of the copolymer on the structure.
Inventors
- 👤 Hideyuki Imazaki
- 👤 Kazuhiko Sakamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:37
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/14; C09D5/16; C09D5/1606; C09D5/1637; C09D5/1643; A; A01; A01N; A01N25/00; A01N25/08; A01N25/10; A01N55/00; A01N55/02; A01N55/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
423 words
An antifouling agent comprising as an antifouling copolymer containing (a) 10 to 80% by weight of at least one kind of N-coordinated-triorganotin-containing recurring units of the formula ##STR31## wherein R 1 represents a hydrogen atom, a methyl group or a halogen atom; (i) when A and B independently from each other represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, a cycloalkyl group, an aryl group, an aralkyl group, a hydroxyalkyl group having 2 to 4 carbon atoms or a group of the formula ##STR32## in which R 3 represents an alkyl group having 1 to 18 carbon atoms, or an aryl group, Y represents a bond, an alkylene group having 1 to 12 carbon atoms, a phenylene group, a group of the formula ##STR33## or a group of the formula ##STR34## or --O--Z-- in which Z represents an alkylene group having 2 to 12 carbon atoms, or (ii) when A and B are bonded to each other together with the nitrogen atom to which they are bonded, to form a 5- or 6-membered heterocyclic ring, Y represents a bond or a group of the formula ##STR35## groups R are identical or different and each represents an alkyl group having 1 to 8 carbon atoms or an aryl group; and X represents a halogen atom, or ##STR36## wherein R 1 , R and X are as defined as in regard to formula (Ia); R 2 represents a hydrogen atom, a methyl group, an ethyl group or a halogen atom; p is an integer of from 1 to 4; the symbol ##STR37## represents a 5- or 6-membered heterocyclic ring bonded through a ring-member atom other than the nitrogen atom to the carbon atom to which R 1 is bonded, and (b) 90 to 20% by weight of comonomer recurring units derived from at least one ethylenic vinyl compound as a comonomer selected from the group consisting of acrylic compounds of the formula ##STR38## wherein R 4 represents a hydrogen atom, a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, and R 5 represents a hydrogen or a methyl group; vinyl compounds having a functional group of the formula ##STR39## wherein Q represents a halogen atom, --CN, --OR* or --OCOR* in which R* represents a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, and Q' represents a hydrogen atom, a halogen atom or a methyl group; and styrene, said percent by weight being based on the total weight of these two kinds of recurring units.
Claim 2
Dependent Claim
423 words
An antifouling agent comprising as an antifouling copolymer containing (a) 10 to 80% by weight of at least one kind of N-coordinated-triorganotin-containing recurring units of the formula ##STR31## wherein R 1 represents a hydrogen atom, a methyl group or a halogen atom; (i) when A and B independently from each other represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, a cycloalkyl group, an aryl group, an aralkyl group, a hydroxyalkyl group having 2 to 4 carbon atoms or a group of the formula ##STR32## in which R 3 represents an alkyl group having 1 to 18 carbon atoms, or an aryl group, Y represents a bond, an alkylene group having 1 to 12 carbon atoms, a phenylene group, a group of the formula ##STR33## or a group of the formula ##STR34## or --O--Z-- in which Z represents an alkylene group having 2 to 12 carbon atoms, or (ii) when A and B are bonded to each other together with the nitrogen atom to which they are bonded, to form a 5- or 6-membered heterocyclic ring, Y represents a bond or a group of the formula ##STR35## groups R are identical or different and each represents an alkyl group having 1 to 8 carbon atoms or an aryl group; and X represents a halogen atom, or ##STR36## wherein R 1 , R and X are as defined as in regard to formula (Ia); R 2 represents a hydrogen atom, a methyl group, an ethyl group or a halogen atom; p is an integer of from 1 to 4; the symbol ##STR37## represents a 5- or 6-membered heterocyclic ring bonded through a ring-member atom other than the nitrogen atom to the carbon atom to which R 1 is bonded, and (b) 90 to 20% by weight of comonomer recurring units derived from at least one ethylenic vinyl compound as a comonomer selected from the group consisting of acrylic compounds of the formula ##STR38## wherein R 4 represents a hydrogen atom, a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, and R 5 represents a hydrogen or a methyl group; vinyl compounds having a functional group of the formula ##STR39## wherein Q represents a halogen atom, --CN, --OR* or --OCOR* in which R* represents a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, and Q' represents a hydrogen atom, a halogen atom or a methyl group; and styrene, said percent by weight being based on the total weight of these two kinds of recurring units.
Claim 3
Dependent Claim
92 words
The antifouling agent of claim 1 wherein in formula (Ia), A and B, independently from each other, represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a 5- or 6-membered cycloalkyl group, a phenyl group, a naphthyl group, a benzyl group, an α-penethyl group, a β-phenethyl group, a hydroxyalkyl group having 2 or 3 carbon atoms, or an acyl group of the formula ##STR40## in which R 31 represents an alkyl group having 1 to 8 carbon atoms, a phenyl group, a tolyl group or a naphthyl group.
Claim 4
Dependent Claim
70 words
The antifouling agent of claim 1 wherein in formula (Ia), A and B are bonded to each other and, together with the nitrogen atom to which they are bonded, represent a 5- or 6-membered heterocyclic ring containing no ring-member hetero atom other than the nitrogen atom, or a 5- or 6-membered heterocyclic ring containing an oxygen or sulfur atom as a ring-member hetero atom in addition to the nitrogen atom.
Claim 5
Dependent Claim
32 words
The antifouling agent of claim 1 or 3 wherein in formula (Ia), the group ##STR41## is an amino group, a dialkylamino group, an N-acyl-N-alkylamino group, an N-alkyl-N-arylamino group, or an N-acyl-N-arylamino group.
Claim 6
Dependent Claim
50 words
The antifouling agent of claim 1 or 4 wherein in formula (Ia), the group ##STR42## represents a 5-membered heterocyclic ring containing no ring-member hetero atom other than the nitrogen atom, or a 6-membered heterocyclic ring containing an oxygen atom as a ring-member hetero atom in addition to the nitrogen atom.
Claim 7
Dependent Claim
28 words
The antifouling agent of claim 1 wherein in formula (Ib), the symbol ##STR43## represents a 6-membered heterocyclic ring containing no ring-member hetero atom other than the nitrogen atom.
Claim 8
Dependent Claim
15 words
The antifouling agent of claim 1 wherein the three R groups represent the same group.
Claim 9
Dependent Claim
12 words
The antifouling agent of claim 1 wherein X is a chlorine atom.
Claim 10
Dependent Claim
27 words
The antifouling agent of claim 1 or 10 wherein the substantially linear triorganotin-containing copolymer is composed substantially of the N-coordinated-triorganotin-containing recurring units and the comonomer recurring units.
Claim 11
Dependent Claim
24 words
The antifouling agent of claim 1 wherein the substantially linear triorganotin-containing copolymer has a weight average molecular weight of about 5,000 to about 500,000.
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) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |