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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 5804676 B1

PDFFull Text
Date of Patent:
Sep. 08, 1998

Filed:

Aug. 28, 1996

Process for preparing polymer

Applicant:
Inventors:

Shinichi Hieda, Hiratsuka, JP;

Masahiro Kurokawa, Hiratsuka, JP;

Yasushi Higuchi, Hiratsuka, JP;

Shojiro Kawahara, Hiratsuka, JP;

Assignee:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Attorney:

Frishauf, Holtz, Goodman, Langer & Chick, P.C.

Primary Examiner:

Thomas R Weber

Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 65 ; 5263297 ; 528501 ; 5285 / ;
Abstract

A process for continuously preparing a high quality methacrylic polymer with a high productivity is provided. The process comprises continuously polymerizing methyl methacrylate alone or a monomer mixture of methyl methacrylate and an alkyl acrylate by a solution polymerization using methanol as a solvent, directly feeding the resulting polymerization reaction product to an extruder having a plurality of vents, and extruding the polymer, while volatiles are removed through the vents.

Find Patent Forward Citations

Hieda, Shinichi. (1998). Process for preparing polymer (U.S. Patent No. 5804676). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5804676

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

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