Patent ID: 6359067
Filing Date: 2002-03-19
Classification: C08L,C09D

Abstract:
A thermosetting powder coating composition comprising a resin composition (A) and a curing agent (B), whereinthe resin composition (A) has a sea-island microphase separation structure constituted of a continuous phase comprising an acrylic copolymer (a-1) and a dispersion phase comprising a thermoplastic elastomer (a-2), the acrylic copolymer (a-1) constituting the continuous phase is obtained by polymerizing 40 to 99% by weight of a vinyl monomer (a-1-1) not having a functional group reactive to the curing agent (B) in its molecule and having at least one radical polymerizable vinyl group with 60 to 1% by weight of a vinyl monomer (a-1-2) having a functional group reactive to the curing agent (B) in its molecule and having at least one radical polymerizable vinyl group, the thermoplastic elastomer (a-2) constituting the dispersion phase is at least one elastomer selected from the group consisting of non-graft-modified thermoplastic elastomers (a-2-1) and graft-modified thermoplastic elastomers (a-2-2), and the total amount of the thermoplastic elastomer (a-2) constituting the dispersion phase is within the range of 0.5 to 20 parts by weight with respect to 100 parts by weight of the resin composition (A).