EP1275705A1
Expired / Lapsed
EP
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Antifouling coating composition
Assignee: Kansai Paint Co Ltd
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Filing: 2001-03-28
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Granted: —
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Expires: 2021-03-28
Abstract
Abstract The present invention provides an antifouling coating composition which comprises (a) an organopolysiloxane having a crosslinkable reactive functional group, (b) a crosslinking agent, (c) a boric acid compound as a curing catalyst and (d) a silicone oil having a number average molecular weight of 180 to 30,000 and a viscosity of 10 to 50,000 mPa·s and which is nontoxic and mild to the environment.
Inventors
- 👤 Masato Kishihara
- 👤 Makoto Kansai Paint Co. Ltd. HORI
- 👤 Toshimitsu Muramatsu
- 👤 Yoichi Yonehara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1675; C09D183/00; C09D183/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
50 words
An antifouling coating composition comprising (a) an
organopolysiloxane having a crosslinkable reactive functional group,
(b) a crosslinking agent, (c) a boric acid compound as a curing
catalyst and (d) a silicone oil having a number average molecular
weight of 180 to 30,000 and a viscosity of 10 to 50,000 mPa·s.
Claim 2
Dependent Claim
50 words
The composition as described in Claim 1, wherein the
organopolysiloxane (a) comprises a combination of an
organopolysiloxane (a-1) having a number average molecular weight
falling in a range of 20,000 to 100,000 and an organopolysiloxane (a-2)
having a number average molecular weight falling in a range of
500 to 20,000.
Claim 3
Dependent Claim
23 words
The composition as described in Claim 2, wherein a weight ratio
of organopolysiloxane (a-1)/organopolysiloxane (a-2) falls in a range of
5/95 to 95/5.
Claim 4
Dependent Claim
39 words
The composition as described in Claim 1, wherein the
crosslinking agent (b) is a multifunctional silane compound having in
a molecule, at least two functional groups which react with a
crosslinkable reactive functional group contained in the
organopolysiloxane (a).
Claim 5
Dependent Claim
20 words
The composition as described in Claim 4, wherein the
multifunctional silane compound has a ketoxime group as a
functional group.
Claim 6
Dependent Claim
39 words
The composition as described in Claim 1, comprising the
crosslinking agent (b) in an amount falling in a range of 1 to 100
parts by weight per 100 parts by weight of a solid matter of the
organopolysiloxane (a).
Claim 7
Dependent Claim
24 words
The composition as described in Claim 1, wherein the boric acid
compound (c) is selected from the group consisting of boric acid and
borate.
Claim 8
Dependent Claim
13 words
The composition as described in Claim 7, wherein the borate is
trialkyl borate.
Claim 9
Dependent Claim
32 words
The composition as described in Claim 7, wherein the borate is
selected from the group consisting of trimethyl borate, triethyl borate,
tripropyl borate, tributyl borate, triphenyl borate, tri(4-chlorophenyl)
borate and trihexafluoroisopropyl borate.
Claim 10
Dependent Claim
40 words
The composition as described in Claim 1, comprising the boric
acid compound (c) in an amount falling in a range of 0.01 to 15 parts
by weight per 100 parts by weight of a solid matter of the
organopolysiloxane (a).
Claim 11
Dependent Claim
181 words
The composition as described in Claim 1, wherein the silicone
oil (d) is selected from the group consisting of compounds represented
by the following Formulas (I) and (II): wherein R 1 's may be the same or different and each represent an
alkyl group having1 to 10 carbon atoms, an aryl group, an aralkyl
group or a fluoroalkyl group; and n is an integer of 0 to 400, and Rx Si (R'Z) y O (4-x-y)/2 wherein R represents a hydrogen atom, an alkyl group having 1 to 10
carbon atoms, an aryl group or an aralkyl group; R' represents a
divalent aliphatic hydrocarbon group having 1 to 10 carbon atoms
which may contain an ether bond, an ester bond or -NH- in a chain;
Z represents a monovalent polar group selected from an amino group,
a carboxyl group, an epoxy group and a polyoxyethylene or
polyoxypropylene group which may be blocked at a single end by an
alkyl group having 1 to 6 carbon atoms or an acyl group; and x and y
each are 0.01≦x<3.99, 0.01≦y<3.99 and 0.02≦x + y<4.
Claim 12
Dependent Claim
39 words
The composition as described in Claim 1, comprising the
silicone oil (d) in an amount falling in a range of 30 to 200 parts by
weight per 100 parts by weight of a solid matter of the
organopolysiloxane (a).
Claim 13
Dependent Claim
13 words
The composition as described in Claim 1, further comprising an
inorganic filler (e).
Claim 14
Dependent Claim
39 words
The composition as described in Claim 1, comprising the
inorganic filler (e) in an amount falling in a range of 1 to 30 parts by
weight per 100 parts by weight of a solid matter of the
organopolysiloxane (a).
Claim 15
Dependent Claim
14 words
An underwater structure coated with the antifouling coating
composition as described in Claim 1.
References Cited (Backward Citations)
No citation records indexed.
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