Aqueous primer composition, method of surface treating by using the same and laminated structure thereof
AssigneeDainippon Ink and Chemicals, Inc.
InventorsYasuhiro Takada, Hideto Hayano, Masaki Watanabe, Masahito Furo
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Abstract
An aqueous primer composition of the present invention includes a water-dispersible polyisocyanate (A) and an acrylic resin water dispersion (B), wherein a polystyrene equivalent weight average molecular weight, determined using gel permeation chromatography, of an acrylic resin in the acrylic resin water dispersion (B) is 350,000 or more, and a glass transition temperature, determined by using a differential scanning calorimeter, of the acrylic resin is 15° C. to 130° C., and a weight ratio between the water-dispersible polyisocyanate (A) and the acrylic resin water dispersion (B) is (A):(B)=70:30 to 50:50.
Claims8
An aqueous primer composition, comprising:
- a water-dispersible polyisocyanate (A);
- and
- an acrylic resin water dispersion (B),
- wherein a polystyrene equivalent weight average molecular weight, determined using gel permeation chromatography, of an acrylic resin in the acrylic resin water dispersion (B) is 350,000 or more,
- a glass transition temperature, determined by using a differential scanning calorimeter, of the acrylic resin is 15° C. to 130° C., and
- a weight ratio between the water-dispersible polyisocyanate (A) and the acrylic resin water dispersion (B) is (A):(B)=70:30 to 50:50 in solid content.
Dependencies are inferred from the claim text.