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.

Date of Patent:
Sep. 13, 2005

Filed:

Jun. 23, 2003
Applicants:

Shinichi Sumida, Saitama, JP;

Takashi Kume, Gainesville, FL (US);

Sunao Koga, Saitama, JP;

Haruhiko Komoriya, Saitama, JP;

Inventors:

Shinichi Sumida, Saitama, JP;

Takashi Kume, Gainesville, FL (US);

Sunao Koga, Saitama, JP;

Haruhiko Komoriya, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C041/08 ; C07F007/02 ;
U.S. Cl.
CPC ...
Abstract

A fluorine-containing styrene monomer of the formula (2) is produced by a first, second or third process. The first process includes (a) reacting a compound of the formula (1) with a compound of the formula (3), in the presence of a metal catalyst; (b) reacting the product of the step (a) with a base; and (c) reacting the product of the step (b) with hydrogen, in the presence of a metal catalyst and a phosphine or amine, thereby producing the target styrene monomer. The second process includes reacting a compound of the formula (1) with a compound of the formula (12), in the presence of a metal catalyst, thereby producing the target styrene monomer. The third process includes reacting a compound of the formula (13) with a compound of the formula (14) or (15), in the presence of a base, thereby producing the target styrene monomer.


Find Patent Forward Citations

Sumida, Shinichi. (2005). Process for producing fluorine-containing, polymerizable styrene monomer and intermediates used in same (U.S. Patent No. 6943271). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6943271

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

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