Aqueous primer composition, method of surface treating by using the same and laminated structure thereof
US7718263B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Aug 15, 2005 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.