Title:
熱硬化性粉末塗料組成物、並びにそれの製造に使用できるポリエステル樹脂
Document Type and Number:
Japanese Patent JP2008528710
Kind Code:
A
Abstract:
Thermosetting powder paint composition and polyester resin which can be used for its manufacture. The invention relates to thermosetting powder paint compositions based on carboxyl group-containing polyester resins as well as polyepoxides and/or beta-hydroxyalkylamides as curing agents. The polyester resins have an acid number of 10 to 100 and a hydroxyl number of at most 15 mg KOH/g polyester resin and consist of at least 50 mol %, with respect to the totality of the dicarboxylic acids contained, of units of isophthalic acid, and of at least 50 mol %, with respect to the totality of the diols contained, of units of neopentyl glycol, and contain a maximum of 10 mol %, with respect to the totality of all dicarboxylic acids and diols, of monomers having a functionality of 3 or greater. Through the addition of 0.05 to 5 wt. % of a heterocyclic polycarboxylic acid into the powder paint mixture, preferably through melting of this acid into the polyester resin used for the manufacture of the powder paint, highly weather-resistant powder coatings with outstanding mechanical properties and surface appearance can be achieved.
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Inventors:
Reich Gerhard
Application Number:
JP2007551510A
Publication Date:
July 31, 2008
Filing Date:
December 15, 2005
Export Citation:
Assignee:
Tigerwerk Luck-Und Farbenfabrik Gesellschaft Mito Beschlenktel Haftung und Company Comandito Gesellschaft
International Classes:
C09D167/02; C08G63/12; C08G63/685; C09D5/03; C09D7/12; C09D167/00; C09D167/03; C08K5/20; C08K5/3492; C08L63/00
Attorney, Agent or Firm:
Mitsufumi Esaki
Okumura Yoshimichi
Blacksmith
Okumura Yoshimichi
Blacksmith