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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 4717755 B1

PDFFull Text
Date of Patent:
Jan. 05, 1988

Filed:

Dec. 19, 1985

Process for producing propylene polymer

Applicant:
Inventors:

Yoshiharu Doi, Kanagawa, JP;

Kazuo Soga, Kanagawa, JP;

Satoshi Ueki, Saitama, JP;

Makoto Miyazaki, Saitama, JP;

Assignee:

Toa Nenryo Kogyo Kabushiki Kaisha, Tokyo, JP;

Attorney:

Kurtzman; M. B.

Primary Examiner:

Joseph L Schofer

Assistant Examiner:

Bernard Lipman

Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
5253337 ; 525383 ; 526 84 ;
Abstract

A process for producing a propylene polymer having a carbonyl group at the terminal, said process comprising polymerizing propylene to give a living propylene polymer in the presence of a catalyst composed of beta-diketone vanadium chelate and an aluminum compound represented by the formula R.sub.2 AlX (wherein R is a hydrocarbon group having 1 to 8 carbon atoms and X is a halogen atom), and reacting the living propylene polymer with a carbonylating agent.

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Doi, Yoshiharu. (1988). Process for producing propylene polymer (U.S. Patent No. 4717755). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4717755

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

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