Title:
RESIN COMPOSITION FOR POWDER COATING
Document Type and Number:
WIPO Patent Application WO/1999/018165
Kind Code:
A1
Abstract:
A powder coating resin composition comprising a vinyl copolymer (A) bearing both a specific silyl group and a glycidyl group in the molecule and/or a resin composition (D) comprising a vinyl copolymer (B) bearing a specific silyl group and a vinyl copolymer (C) bearing a glycidyl group, and an aliphatic dibasic acid (E) as the essential components, wherein the component (A) or (B) contains the specific silyl group as the main crosslinking group, the component (A), (B) or (C) has a glass transition temperature of 40 to 100 °C and a number-average molecular weight of 2000 to 20000, and the component (A) and/or (D) accounts for at least 20 % of the total amount of the crosslinkable polymers. The resin composition overcomes the disadvantages of conventional ester resins or epoxy resins of acid-epoxy crosslink type, and provides a powder coating material of a new crosslink type which can give a coating film having not only excellent weathering resistance but also such mechanical characteristics that could not be realized by the acrylic resins of the prior art, is freed from environmental problems and can be prepared at a low cost.
Inventors:
MASUDA TOSHIYUKI (JP)
KAWABATA HIROSUKE (JP)
TANAKA KATSUYUKI (JP)
KAWABATA HIROSUKE (JP)
TANAKA KATSUYUKI (JP)
Application Number:
PCT/JP1998/004444
Publication Date:
April 15, 1999
Filing Date:
October 01, 1998
Export Citation:
Assignee:
KANEKA CORP (JP)
MASUDA TOSHIYUKI (JP)
KAWABATA HIROSUKE (JP)
TANAKA KATSUYUKI (JP)
MASUDA TOSHIYUKI (JP)
KAWABATA HIROSUKE (JP)
TANAKA KATSUYUKI (JP)
International Classes:
C09D5/03; C09D137/00; C09D143/04; C09D163/00; (IPC1-7): C09D163/00; C09D5/03; C09D137/00; C09D143/04
Foreign References:
| JPH07509014A | 1995-10-05 |
Attorney, Agent or Firm:
Hagino, Taira (ARK Mori Building 12-32, Akasaka 1-chome Minato-ku Tokyo, JP)
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