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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 5688872 B1

PDFFull Text
Date of Patent:
Nov. 18, 1997

Filed:

Nov. 25, 1996

Bisaminothiophenol compound, process for producing the same and curing

Applicant:
Inventors:

Takehiro Sonoi, Ibaraki, JP;

Haruyoshi Tatsu, Ibaraki, JP;

Lev Solomonovich German, deceased, late of Moscow, RU;

Valerii Romanovich Polishchuk, deceased, late of Lod, IL;

Assignee:

Nippon Mektron, Limited, Tokyo, JP;

Attorney:

Barnes & Thornburg

Primary Examiner:

Robert Gerstl

Int. Cl.
CPC ...
C08C / ;
U.S. Cl.
CPC ...
525350 ; 5253263 ;
Abstract

2,2-bis(4-aminophenyl)hexafluoropropane is allowed to react with potassium thiocyanate and bromine to obtain 2,2-bis(5-amino-4,6-benzothiazolyl)hexafluoropropaneo which is allowed to further react successively with potassium hydroxide and hydrochloric acid to obtain 2,2-bis(4-amino-3-mercapto-phenyl)hexafluoropropane, which is a novel compound applicable as a curing agent for a fluorine-containing elastomer having CN groups as cross-linkable groups.

Find Patent Forward Citations

Sonoi, Takehiro. (1997). Bisaminothiophenol compound, process for producing the same and curing (U.S. Patent No. 5688872). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5688872

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