Waterborne resin emulsion and waterborne coating
AssigneeDainippon Inc. & Chemicals Inc.
InventorsMasahito Furo, Shin′ichi Kuwamura
Life of this patent
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Abstract
An emulsion of a monomer having a radical polymerizable unsaturated bond, which is obtained by emulsifying the monomer in the presence of an emulsifier, and a mixed solution of a specific non-radical polymerizable organosilicon compound and a polymerization initiator, which is soluble in the non-radical polymerizable organosilicon compound, are added to an aqueous medium, followed by emulsion polymerization, hydrolysis, and condensation, to produce a waterborne resin emulsion and a waterborne coating which can form a coating film having superior durability such as water resistance, weathering resistance, or the like.
Claims10
A waterborne resin emulsion obtained by adding an emulsion (a) of a monomer having a radical polymerizable unsaturated bond, which is obtained by emulsifying the monomer in the presence of an emulsifier, and a mixed solution (b) of a non-radical polymerizable organosilicon compound represented by the following formula:
- (R1)n−Si−(R2)4-n
- (wherein n represents an integer of 1 to 3, R1 represents an alkyl, cycloalkyl or aryl group having 1 to 16 carbon atoms, and R2 represents an alkoxy group having 1 to 8 carbon atoms or a hydroxyl group) and a polymerization initiator, which is dissolved in the non-radical polymerizable organosilicon compound, in an aqueous medium;
- and simultaneously carrying out emulsion polymerization of the monomer having a radical polymerizable unsaturated bond and hydrolysis and condensation of the non-radical polymerizable organosilicon compound.
A waterbome coating comprising a waterbome resin emulsion obtained by adding an emulsion (a) of a monomer having a radical polymerizable unsaturated bond, which is obtained by emulsifying the monomer in the presence of an emulsifier, and a mixed solution (b) of a non-radical polymerizable organosilicon compound represented by the following formula:
- (R1)n−Si−(R2)4-n
- (wherein n represents an integer of 1 to 3, R1 represents an alkyl, cycloalkyl, or aryl group having 1 to 16 carbon atoms, and R2 represents an alkoxy group having 1 to 8 carbon atoms or a hydroxyl group) and a polymerization initiator, which is dissolved in the non-radical polymerizable organosilicon compound, in an aqueous medium;
- and simultaneously carrying out emulsion polymerization of the monomer having a radical polymerizable unsaturated bond and hydrolysis and condensation of the non-radical polymerizable organosilicon compound.
Dependencies are inferred from the claim text.