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:
Feb. 24, 1981

Filed:

Mar. 08, 1979
Applicant:
Inventors:

Mitsutoshi Fukuda, Shin-nanyo, JP;

Kazuo Tago, Shin-nanyo, JP;

Akihiko Shimizu, Shin-nanyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 77 ; 526173 ; 526174 ; 526175 ;
Abstract

An anionic polymerization is carried out by polymerizing a monomer for anionic polymerization in a solvent in the presence of a polymerization initiator after preparing a polymerization system by an operation (I) adding a solution of an organometallic compound in a polymerization system of a solvent or a combination of a solvent and an inert gas and an operation (II) removing excess of the unreacted organometallic compound, before charging the monomer and the polymerization initiator.


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Fukuda, Mitsutoshi. (1981). Anionic polymerization process (U.S. Patent No. 4252925). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4252925

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

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