Title:
MELAMINE RESIN MATERIAL FOR INJECTION MOLDING
Document Type and Number:
Japanese Patent JP3144867
Kind Code:
B2
Abstract:
PURPOSE: To provide a melamine resin molding material for injection molding having excellent cylinder stability in injection molding and capable of forming a molding having excellent appearance free from thin spot and color shading and excellent physical properties such as crack resistance and insertion resistance.
CONSTITUTION: The objective melamine resin molding material for injection molding contains (A) 100 pts.wt. of a melamine/formaldehyde resin, (B) 20-60 pts.wt. of pulp and (C) 0.1-5 pts.wt. of a higher fatty acid. The material is preferably produced by mixing preparatorily dried popcorn-like powder produced by so-called wet-process, a powdery melamine resin, a powdery pulp and a higher fatty acid ester, etc., heating and kneading the obtained powdery melamine resin mixture with a hot roll, etc., and again crushing the obtained preformed material.
Inventors:
Nobuyuki Sawada
Takayuki Miyagawa
Kazuo Yamamoto
Kazuyoshi Miyata
Takayuki Miyagawa
Kazuo Yamamoto
Kazuyoshi Miyata
Application Number:
JP35038191A
Publication Date:
March 12, 2001
Filing Date:
December 11, 1991
Export Citation:
Assignee:
Nippon Carbide Industry Co., Ltd.
International Classes:
B29C39/00; B29C45/00; C08K5/09; C08K5/101; C08L1/00; C08L61/20; C08L61/28; (IPC1-7): C08L61/28; C08K5/101
Domestic Patent References:
| JP1306458A | ||||
| JP52111994A | ||||
| JP297552A | ||||
| JP63145356A |