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:
Mar. 30, 1976
Filed:
Jun. 17, 1974
Applicant:
Inventors:
Assignee:
Mitsuboshi Belting Ltd., Kobe, JA;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ;
Abstract
A polymer of .omega.-lactam is prepared by heating a mixture of at least one kind of .omega.-lactam, an anionic catalyst comprising the reaction product of a strong base and a .omega.-lactam, and an N-substituted ethyleneimine derivative represented by the general formula ##EQU1## wherein R represents an organic group as hereafter defined, and n is 2 or 3.
Matsuo, Tadao. (1976). Anionic process for the polymerization of lactam (U.S. Patent No. 3947428). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3947428
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile