Title:
【発明の名称】熱硬化性粉体塗料およびその製法
Document Type and Number:
Japanese Patent JP3345270
Kind Code:
B2
Abstract:
A powder coating is prepared by (a) solvent polymerizing carboxy-functional acrylate copolymers, (b) separating and reacting the copolymers with a molar excess of at least one epihaloalkane, (c) removing excess epihaloalkane, (d) adding toluene and then reacting the copolymers with a sodium hydroxide solution to produce epoxy groups-containing acrylate copolymers having an epoxide number of from 0.018-0.501 eq/100 g copolymer, a weight average molecular weight of from 1000-30,000 and a Tg of from 20-120 DEG C.; and (e) extruding the epoxy groups-containing acrylate copolymers with a hardener such as aliphatic polybasic acids or anhydrides, or carboxy-functional polyesters or acrylic resins along with additives such as pigments or fillers.
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Inventors:
Albert Reich
Andreas Kaplan
Rene Gisler
Andreas Kaplan
Rene Gisler
Application Number:
JP16284696A
Publication Date:
November 18, 2002
Filing Date:
June 24, 1996
Export Citation:
Assignee:
Ems-Inventa Actien Gezershyaft
International Classes:
C08F8/08; C08L27/22; C09D5/46; C09D5/03; C09D133/04; C09D133/06; C09D163/00; (IPC1-7): C09D163/00; C09D5/03
Domestic Patent References:
| JP6079006A | ||||
| JP51151730A | ||||
| JP5156833A | ||||
| JP4843747A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)