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:
Oct. 04, 1988
Filed:
Apr. 23, 1987
Applicant:
Inventors:
Assignee:
Sumimoto Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
525183 ; 525184 ; 525408 ; 525437 ; 525474 ;
Abstract
A process for producing a polyamide block copolymer is disclosed, which comprises suspension polymerizing a lactam in an organic suspending medium in the presence of an anionic polymerization catalyst and a polymer activator. The polyamide block copolymer obtained has a granular or powdery form easy to handle.