Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1992-12-29
1995-04-18
Short, Patricia A.
Coating processes
With post-treatment of coating or coating material
Heating or drying
4273855, 525133, 525166, 525176, 525934, C08L 6702, C08L 3700
Patent
active
054077060
ABSTRACT:
There is disclosed a resin composition for powder coatings, which comprises a blend of two acrylic resins obtained by polymerizing a prescribed amount of monomer component (a-1) represented by formula (I) and a prescribed amount of another monomer component (a-2), respectively, and having different polymerization degrees represented by viscosities at 140.degree. C. and a polybasic acid compound in 1.5 to 0.5 equivalent ratio of the glycidyl groups in said acrylic resins to the acid groups in the polybasic acid compound. ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a lower alkyl group. The resin composition for powder coatings that can form a coating film having a mat smooth appearance and being excellent in flexibility as shown by Du Pont impact resistance and the Ericksen test as well as being excellent in nail scratch resistance.
REFERENCES:
patent: 3857905 (1974-12-01), Blackley
patent: 4499239 (1985-02-01), Murakami
Chemical Abstracts, vol. 84, Abstract No. 123504 & JPA 50-151225.
Kano Taisaku
Miyazaki Eiichiro
Nishimori Makoto
Sekido Takayoshi
Mitsui Toatsu Chemicals Inc.
Short Patricia A.
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