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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 4999090 B1

PDFFull Text
Date of Patent:
Mar. 12, 1991

Filed:

Jul. 05, 1989

Process for preparing trans-1,4-cyclohexanedimethanol and powder of the

Applicant:
Inventors:

Yoshiaki Tateno, Omiya, JP;

Susumu Yoneda, Fuji, JP;

Naoki Okamoto, Fuji, JP;

Yoshibumi Ishii, Fuji, JP;

Kazuaki Kato, Yoshikawamachi, JP;

Assignee:

Towa Chemical Industry Co., Ltd., Tokyo, JP;

Attorney:

Beveridge, DeGrandi & Weilacher

Primary Examiner:

Virginia Manoharan

Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
203 36 ; 203 91 ; 203D / ; 568822 ; 568831 ;
Abstract

A process of preparing industrially trans-1,4-cyclohexanedimethanol of high purity by distilling a mixture of cis- and trans-1,4-cyclohexanedimethanol in the presence of alkali, or by heating a mixture of cis- and trans-1,4-cyclohexanedimethanol in the presence of alkali and then distilling the heated mixture, and a process of preparing powdered trans-1,4-cyclohexanedimethanol by pulverizing the distillate obtained above.

Find Patent Forward Citations

Tateno, Yoshiaki. (1991). Process for preparing trans-1,4-cyclohexanedimethanol and powder of the (U.S. Patent No. 4999090). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4999090

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