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:
Dec. 20, 1988
Filed:
Mar. 19, 1987
Applicant:
Inventors:
Jozef J Bongers, Stein (L.), NL;
Albert A Van Geenen, Brunssum, NL;
Assignee:
Stamicarbon B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502167 ; 528312 ;
Abstract
Catalyst composition solid at room temperature, based on alkali metal lactamate, characterized in that the content of methanol, ethanol and n-propanol is lower than 0,2 wt. % and that 0.1-5 wt. % of another alcohol is present, chosen from isopropanol or a branched or unbranched aliphatic or aromatic alcohol with 4-18 carbon atoms, which alcohol has a boiling point of 80.degree. C. to 250.degree. C. This catalyst composition is suitable for lactam polymerization, especially in RIM techniques. Nylon block copolymer prepared with said catalyst composition and articles made frrom this nylon block copolymer.