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.:
Date of Patent:
Sep. 02, 1980
Filed:
Apr. 20, 1979
Applicant:
Inventors:
Kazuhiko Matsuzaki, Kurashiki, JP;
Junzo Masamoto, Kurashiki, JP;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525398 ; 260 / ;
Abstract
Stabilized polyoxymethylene excellent in heat stability, base stability and mechanical properties can be produced by reacting polyoxymethylene having a number average molecular weight of 10,000 or more with 1,3-dioxepane in an organic medium in the presence of a Lewis acid and, if necessary, a molecular weight regulator.