Aqueous antifouling composition, process for its production and product treated therewith
AssigneeAsahi Glass Company, Limited
InventorsToyomichi Shimada, Yuichi Omori, Takashige Maekawa
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Abstract
An aqueous antifouling composition comprising fine particles of a copolymer which comprises the following polymer units (a), (b) and (c) and which has a glass transition temperature of at most 5° C., and an aqueous medium in which the fine particles are dispersed: (a) polymer units of a (meth)acrylate having a polyfluoroalkyl group, (b) polymer units of an alkyl acrylate wherein the carbon number of the alkyl group is from 2 to 12, and (c) polymer units of a (meth)acrylic monoester of a polyol.
Claims11
An aqueous antifouling composition comprising fine particles of a copolymer which comprises the following polymer units (a), (b) and (c) and which has a glass transition temperature of at most 5° C., and an aqueous medium in which the fine particles are dispersed:
- (a) polymer units of a (meth)acrylate having a polyfluoroalkyl group,
- (b) polymer units of an alkyl acrylate wherein the carbon number of the alkyl group is from 2 to 12, and
- (c) polymer units of a (meth)acrylic monoester of a polyol.
A process for producing an aqueous antifouling composition, which comprises copolymerizing at least three monomers (a), (b) and (c) to produce a copolymer having a glass transition temperature of at most 5° C., in an aqueous medium in the presence of an emulsifier:
- (a) a (meth) acrylate having a polyfluoroalkyl group,
- (b) an alkyl acrylate wherein the carbon number of the alkyl group is from 2 to 12, and
- (c) a (meth) acrylic monoester of a polyol.
A process for producing an aqueous antifouling composition, which comprises copolymerizing at least three monomers (a), (b) and (c) to produce a copolymer having a glass transition temperature of at most 5° C., in an aqueous medium in the presence of an emulsifier, and diluting a dispersion thereby obtained:
- (a) a (meth) acrylate having a polyfluoroalkyl group,
- (b) an alkyl acrylate wherein the carbon number of the alkyl group is from 2 to 12, and
- (c) a (meth) acrylic monoester of a polyol.
Dependencies are inferred from the claim text.