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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 4511751 B1

PDFFull Text
Date of Patent:
Apr. 16, 1985

Filed:

Oct. 11, 1983

Process for producing isoprene

Applicant:
Inventors:

Yoichi Ninagawa, Hasaki, JP;

Osamu Yamada, Hasaki, JP;

Tsumoru Renge, Hasaki, JP;

Sunao Kyo, Abiko, JP;

Takayoshi Osaki, Kurashiki, JP;

Koichi Kushida, Ibaraki, JP;

Assignee:

Kuraray Company, Ltd., Kurashiki, JP;

Attorney:

Oblon, Fisher, Spivak, McClelland & Maier

Primary Examiner:

Curtis R Davis

Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585608 ; 585609 ; 585611 ;
Abstract

A process for producing isoprene in good yield is provided. The process is characterized in that isobutene and/or tertiary butanol and a formaldehyde source are fed, together with water, into an acidic aqueous solution continuously or intermittently while maintaining the reaction pressure in an adequate range and at the same time distilling off the product isoprene and unreacted starting materials, together with water, from the reaction zone.

Find Patent Forward Citations

Ninagawa, Yoichi. (1985). Process for producing isoprene (U.S. Patent No. 4511751). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4511751

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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