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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.:

US 4546155 B1

PDFFull Text
Date of Patent:
Oct. 08, 1985

Filed:

Sep. 26, 1984

Latent curing agents for epoxy resins

Applicant:
Inventors:

Takeshi Hirose, Kawasaki, JP;

Nobuo Ito, Oisomachi, JP;

Kiyomiki Hirai, Kawasaki, JP;

Koji Takeuchi, Yokohama, JP;

Assignee:

Ajinomoto Co., Inc., Tokyo, JP;

Attorney:

Oblon, Fisher, Spivak, McClelland & Maier

Primary Examiner:

Earl Nielsen

Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525504 ; 528100 ; 528103 ; 528109 ; 528111 ; 528113 ; 528341 ; 548335 ; 560 85 ; 560 87 ; 560 88 ; 560120 ; 560127 ; 560195 ; 560196 ;
Abstract

A latent curing agent for epoxy resin, characterized in that the latent curing agent is an adduct obtained by reacting (a) a polyfunctional epoxy compound, (b) a compound having at least one OH, NH.sub.2, NH or SH group together with a tertiary amino group in the molecule and (c) a carboxylic acid anhydride is a good curing agent for epoxy resins. The present curing agent is useful in formulating storable, one-package, heat-curable epoxy resin-based compositions.

Find Patent Forward Citations

Hirose, Takeshi. (1985). Latent curing agents for epoxy resins (U.S. Patent No. 4546155). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4546155

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