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 6875896 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 05, 2005

Filed:

Jun. 29, 2004
Applicants:

Kazuhiko Yao, Wakayama, JP;

Tooru Nakaguchi, Wakayama, JP;

Kenji Ekawa, Wakayama, JP;

Inventors:

Kazuhiko Yao, Wakayama, JP;

Tooru Nakaguchi, Wakayama, JP;

Kenji Ekawa, Wakayama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C039/17 ;
U.S. Cl.
CPC ...
Abstract

A method for producing a high purity 1,1-bis(4-hydroxyphenyl)cyclohexane represented by the general formula (II),wherein R is a hydrogen atom or alkyl group, comprising the steps of: reacting cyclohexanone and a phenol represented by the general formula (I) in the presence of an acid catalyst;wherein R is the same as defined above,


Find Patent Forward Citations

Yao, Kazuhiko. (2005). Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes (U.S. Patent No. 6875896). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6875896

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