Title:
ポリイソシアネート及び、ポリオール、ポリカルボン酸及びモノカルボン酸から製造されたポリエステルオリゴマーを含むコーティング組成物。
Document Type and Number:
Japanese Patent JP2004527640
Kind Code:
A
Abstract:
The present invention relates to a coating composition comprising; A) at least one polyester oligomer prepared from reactants comprising a) 20 60 wt. % of at least one polyol, b) 5 30 wt. % of at least one polycarboxylic acid selected from the group of cyclic polycarboxylic acids, the esters or the anhydrides thereof, wherein the carboxyl groups are separated by 3 carbon atoms or less, and from the group of alpha,beta-saturated acyclic polycarboxylic acids, the esters or the anhydrides thereof, and c) 20 60 wt % of at least one monocarboxylic acid, the sum of the wt. % indicated for the reactants (a), (b), and (c) always being 100 wt. %, and the oligomer being a low-viscosity oligomer having a weight average molecular weight Mw of less than 5,000, and a hydroxyl number in the range of about 200 to about 400 mg KOH/g oligomer, and B) at least one polyisocyanate. Also covered is the use of the coating compositions of the invention in the field of finishing and refinishing of automobiles and large transportation vehicles. The coating compositions are particularly useful as primers and topcoats in multi-layered coating systems.
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Inventors:
Vendévurde, Paul, Marie
Application Number:
JP2003502061A
Publication Date:
September 09, 2004
Filing Date:
May 06, 2002
Export Citation:
Assignee:
Akzo Nobel N.V.
International Classes:
C08G18/42; C08G18/72; C08G18/79; C09D7/12; C09D133/06; C09D167/00; C09D175/06; (IPC1-7): C09D175/06; C09D7/12; C09D133/06; C09D167/00
Attorney, Agent or Firm:
Mitsuo Matsui