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:
Jul. 28, 1987
Filed:
Dec. 13, 1985
Applicant:
Inventors:
Albert A Van Geenen, Brunssum, NL;
Jozef J Bongers, Elsloo, NL;
Assignee:
Stamicarbon B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
540529 ; 546222 ; 546243 ; 548538 ; 548540 ; 528315 ;
Abstract
The invention relates to a process for preparing an acyl-lactam compound characterized in that the reaction product of a lactam with a dicarboxylic acid anhydride is reacted with a polyol at a temperature of 150.degree. C. at most. These acyl-lactam compounds are very suitable as activator in the preparation of nylon block copolymers, more specifically in the RIM or RRIM systems.