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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 4962254 B1

PDFFull Text
Date of Patent:
Oct. 09, 1990

Filed:

Aug. 09, 1989

Process for preparing alkyl-substituted aromatic hydrocarbons

Applicant:
Inventors:

Masami Fukao, Shiga, JP;

Takuo Hibi, Toyonaka, JP;

Kiyoshi Ikimi, Otokuni, JP;

Gohfu Suzukamo, Ibaraki, JP;

Assignee:

Sumitomo Chemical Company, Limited, Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch

Primary Examiner:

W J Shine

Assistant Examiner:

James Saba

Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585452 ; 585453 ; 585467 ;
Abstract

An alkyl-substituted hydrocarbon is prepared by alkylating an alkyl aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating an alumina, an alkali metal hydroxide and an alkali metal hydride or an alumina containing at least 1.3% by weight of water and an alkali metal hydride in an inert gas atmosphere at a temperature of 200.degree. to 800.degree. C. as a catalyst.

Find Patent Forward Citations

Fukao, Masami. (1990). Process for preparing alkyl-substituted aromatic hydrocarbons (U.S. Patent No. 4962254). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4962254

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