Aqueous coating compositions for forming anti-grain-puffing coatings on wood substrate, aqueous paints and articles
AssigneeGuangdong Huarun Paints Co., Ltd.
InventorsWei YANG, Jiahua KE
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Abstract
The present invention relates to aqueous coating compositions for forming an anti-grain-puffing coating, aqueous primers comprising the aqueous coating composition, and articles comprising the anti-grain-puffing coating. In particular, the aqueous coating composition comprises: (a) an aqueous dispersion of polymeric particles, wherein the polymer particles comprise polymer having an anionic hydrophilic group on its molecule chain, and the aqueous dispersion of polymeric particles has a pH of less than 7.0; and (b) an aqueous dispersion of nano-silica.
Claims18
An aqueous coating composition for forming an anti-grain-puffing coating on a wood substrate, comprising:
- (a) an aqueous dispersion of polymeric particles, wherein the polymeric particles comprise polymer having an anionic hydrophilic group on its molecule chain, and the aqueous dispersion of polymeric particles has a pH of less than 7.0;
- and
- (b) an aqueous dispersion of nano-silica.
A two-part aqueous primer for forming an anti-grain-puffing coating on a wood substrate, comprising
- (a) an aqueous coating composition, comprising:
- (i) an aqueous dispersion of polymeric particles, wherein the polymeric particles comprise polymer having an anionic hydrophilic group on its molecule chain, and the aqueous dispersion of polymeric particles has a pH of less than 7.0;
- and
- (ii) an aqueous dispersion of nano-silica;
- and
- (b) a blocked isocyanate.
An article, comprising
- (a) a wood substrate having at least one major surface;
- (b) an anti-grain-puffing coating directly applied on the major surface of the wood substrate, formed from the aqueous coating composition comprising:
- (a) an aqueous dispersion of polymeric particles, wherein the polymeric particles comprise polymer having an anionic hydrophilic group on its molecule chain, and the aqueous dispersion of polymeric particles has a pH of less than 7.0;
- and
- (b) an aqueous dispersion of nano-silica;
- and
- (c) a coating applied on the anti-grain-puffing coating, formed from an aqueous coating composition.
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An article, comprising:
- (a) a wood substrate having at least one major surface;
- (b) an anti-grain-puffing coating directly applied on the major surface of the wood substrate, formed from (a) an aqueous coating composition comprising:
- (i) an aqueous dispersion of polymeric particles, wherein the polymeric particles comprise polymer having an anionic hydrophilic group on its molecule chain, and the aqueous dispersion of polymeric particles has a pH of less than 7.0;
- and (ii) an aqueous dispersion of nano-silica;
- and (b) a blocked isocyanate.
Dependencies are inferred from the claim text.