The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1999
Filed:
Sep. 03, 1997
Masuo Iwata, Kanagawa, JP;
Mika Seki, Kanagawa, JP;
Kouji Inoue, Kanagawa, JP;
Ryoji Takahashi, Tokyo, JP;
Tikashi Fukumura, Fukuoka, JP;
Masaya Tanaka, Fukuoka, JP;
Chisso Corp., Osaka, JP;
Abstract
A flame-retardant thermosetting resin composition comprising a thermosetting resin and from 4 to 50% by weight, based on the composition, of (1) melamine-coated ammonium polyphosphate particles and/or (2) water-insoluble ammonium polyphosphate particles obtained by crosslinking the surface of melamine-coated ammonium polyphosphate particles with a compound having a functional group capable of reacting with an active hydrogen atom belonging to an amino group of a melamine molecule in the melamine coating is disclosed. Also disclosed is a process for producing water-insoluble ammonium polyphosphate particles comprising adhering or impregnating a crosslinking agent having a functional group capable of reacting with an active hydrogen atom belonging to an amino group of a melamine molecule to or into the surface of melamine-coated ammonium polyphosphate particles and allowing a melamine in the melamine coat and the crosslinking agent to react.