Patent EP0329375A1 successfully refreshed from Google Patents.
EP0329375A1
Expired / Lapsed
EP
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Inhibition of marine fouling
Assignee: International Paint Ltd
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Filing: 1989-02-14
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Granted: —
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Expires: 2009-02-14
Abstract
Abstract A coating composition for application to an underwater surface to inhibit fouling by marine organisms comprises A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) either D.1) a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea) or D.2) a compound hydrolysable to (D.1).
Inventors
- 👤 Rodney Ralph Brooks
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 14:12
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/14; C09D175/00; C09D175/04; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3271; C08G18/3296; C09D183/00; C09D183/04; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1675; F; F04; F04B; F04B39/00; F04B39/06; C08G2270/00; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
73 words
A process for inhibiting fouling on an underwater surface comprising applying to the surface a coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) either D.1) a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea) or D.2) a compound hydrolysable to (D.1).
Claim 2
Dependent Claim
73 words
A process for inhibiting fouling on an underwater surface comprising applying to the surface a coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) either D.1) a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea) or D.2) a compound hydrolysable to (D.1).
Claim 3
Dependent Claim
32 words
A process according to claim 1, characterised in that the weight ratio of the polyorganosiloxane (A) plus curing agent (B) to the polyisocyanate (C) plus active-hydrogen-providing compound (D) is 60:40 to 95:5.
Claim 4
Dependent Claim
17 words
A process according to claim 2, characterised in that the said weight ratio is 70:30 to 90:10.
Claim 5
Dependent Claim
22 words
A process according to any of claims 1 to 3, characterised in that the coating composition also contains a non-reactive fluid polyorganosiloxane.
Claim 6
Dependent Claim
19 words
A process according to claim 4, characterised in that the non-reactive fluid polyorganosiloxane is a methyl phenyl silicone oil.
Claim 7
Dependent Claim
37 words
A process according to any of claims 1 to 3, characterised in that the coating composition also contains a non-reactive fluid organic compound selected from lubricating mineral oils, low molecular weight polybutene, petrolatum and liquid paraffin/petrolatum mixtures.
Claim 8
Dependent Claim
63 words
A process according to any of claims 1 to 6, characterised in that the coating composition is applied to a mould for the production of a boat hull or part thereof and layers of curable resin are applied to the coated mould and cured in the mould to form a boat hull or part thereof having the coating composition as its outermost layer.
Claim 9
Dependent Claim
98 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) either D.1) a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea) or D.2) a compound hydrolysable to (D.1), the polyorganosiloxane (A) being premixed with the active hydrogen compound (D) and the curing agent (B) being premixed with the polyisocyanate (C), and the mixture of (A) and (D) being packaged separately from the mixture of (B) and (C).
Claim 10
Dependent Claim
98 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) either D.1) a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea) or D.2) a compound hydrolysable to (D.1), the polyorganosiloxane (A) being premixed with the active hydrogen compound (D) and the curing agent (B) being premixed with the polyisocyanate (C), and the mixture of (A) and (D) being packaged separately from the mixture of (B) and (C).
Claim 11
Dependent Claim
33 words
A coating composition according to claim 8, characterised in that the weight ratio of the polyorganosiloxane (A) plus curing agent (B) to the polyisocyanate (C) plus active-hydrogen-providing compound (D) is 60:40 to 95:5.
Claim 12
Dependent Claim
18 words
A coating composition according to claim 9, characterised in that the said weight ratio is 70:30 to 90:10.
Claim 13
Dependent Claim
24 words
A coating composition according to any of claims 8 to 10, characterised in that the polyorganosiloxane (A) is a polydiorganosiloxane having hydroxyl end groups.
Claim 14
Dependent Claim
17 words
A coating composition according to claim 11, characterised in that the curing agent (B) is an alkoxysilane.
Claim 15
Dependent Claim
15 words
A coating composition according to claim 12, characterized in that the alkoxysilane is tetraethyl orthosilicate.
Claim 16
Dependent Claim
48 words
A coating composition according to any of claims 8 to 13, characterised in that the polyisocyanate (C) comprises a flexible polymer chain tipped with isocyanate groups and has a molecular weight of 600 to 3000 and the active-hydrogen-providing compound (D) has a molecular weight of less than 300.
Claim 17
Dependent Claim
49 words
A coating composition according to any of claims 8 to 13, characterised in that the polyisocyanate (C) has a molecular weight less than 300 and the active-hydrogen-providing compound (D) is a flexible polymer chain tipped with hydroxyl and/or amine groups and has a molecular weight of 600 to 3000.
Claim 18
Dependent Claim
72 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate which is an isocyanate-tipped polymer of molecular weight 600 to 3000, and D) a compound which is a cyclic compound of molecular weight less than 600 containing more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea).
Claim 19
Dependent Claim
72 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate which is an isocyanate-tipped polymer of molecular weight 600 to 3000, and D) a compound which is a cyclic compound of molecular weight less than 600 containing more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea).
Claim 20
Dependent Claim
17 words
A coating composition according to claim 16, characterised in that the polyisocyanate (C) is an isocyanate-tipped polyether.
Claim 21
Dependent Claim
21 words
A coating composition according to claim 16 or 17, characterised in that the polyisocyanate (C) is tipped with a cycloaliphatic diisocyanate.
Claim 22
Dependent Claim
45 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) a polyamine or hydroxy-amine capable of reacting with the polyisocyanate (C) to form a polyurea or poly(urethane urea).
Claim 23
Dependent Claim
45 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) a polyamine or hydroxy-amine capable of reacting with the polyisocyanate (C) to form a polyurea or poly(urethane urea).
Claim 24
Dependent Claim
17 words
A coating composition according to claim 19, characterised in that the compound (D) is an aromatic diamine.
Claim 25
Dependent Claim
54 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) a compound hydrolysable to a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea).
Claim 26
Dependent Claim
54 words
A coating composition comprising A) a curable polyorganosiloxane, B) a curing agent capable of curing the polyorganosiloxane (A) to a silicone elastomer, C) a polyisocyanate, and D) a compound hydrolysable to a compound having more than one active hydrogen group capable of reacting with the polyisocyanate (C) to form a polyurethane, polyurea or poly(urethane-urea).
Claim 27
Dependent Claim
17 words
A coating composition according to claim 21, characterised in that the hydrolysable compound (D) is an oxazolidine.
Claim 28
Dependent Claim
21 words
A coating composition according to claim 22, characterised in that the oxazolidine is a compound containing at least two oxazolidine groups.
Claim 29
Dependent Claim
34 words
A coating composition according to claim 23, characterised in that the oxazolidine has the formula where R is a divalent organic group and R¹ to R⁶ are each independently hydrogen or an inert substituent.
Claim 30
Dependent Claim
21 words
A coating composition according to any of claims 22 to 24, characterised in that the coating composition contains a carboxylic acid.
Claim 31
Dependent Claim
47 words
An underwater surface having as its outermost covering layer a cured polymer composition consisting of domains of a polyurethane, polyurea or poly(urethane-urea) within a network of a crosslinked polyorganosiloxane elastomer, with interpenetration of the two polymer networks at the boundaries of the polyurethane, polyurea or poly(urethane-urea) domains.
Claim 32
Dependent Claim
47 words
An underwater surface having as its outermost covering layer a cured polymer composition consisting of domains of a polyurethane, polyurea or poly(urethane-urea) within a network of a crosslinked polyorganosiloxane elastomer, with interpenetration of the two polymer networks at the boundaries of the polyurethane, polyurea or poly(urethane-urea) domains.
Claim 33
Dependent Claim
25 words
An underwater surface according to claim 26, characterised in that the weight ratio of polyorganosiloxane elastomer to polyurethane, polyurea or poly(urethane-urea) is 60:40 to 95:5.
Claim 34
Dependent Claim
18 words
An underwater surface according to claim 27, characterised in that the said weight ratio is 70:30 to 90:10.
Claim 35
Dependent Claim
23 words
An underwater surface according to any of claims 26 to 28, characterised in that the cured polymer composition contains a non-reactive fluid polyorganosiloxane.
Claim 36
Dependent Claim
20 words
An underwater surface according to claim 29, characterised in that the non-reactive fluid polyorganosiloxane is a methyl phenyl silicone oil.
Claim 37
Dependent Claim
37 words
An underwater surface according to any of claims 26 to 28, characterised in that the cured coating composition contains a fluid organic compound selected from lubricating mineral oils, low molecular weight polybutene, petrolatum and liquid paraffin/petrolatum mixtures.
References Cited (Backward Citations)
EP0032597A1
Cited
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