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. 20, 2001
Filed:
Mar. 10, 1999
Applicant:
Inventors:
Christian Maletzko, Altrip, DE;
Edwin Baumann, Schifferstadt, DE;
Ilka Renate Beuermann, Pulheim, DE;
Peter Roche, Emmering, DE;
Ulrich Treuling, Bensheim, DE;
Hans-Peter Frei, Eichenau, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ; C08G 1/800 ; C08G 1/830 ;
U.S. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ; C08G 1/800 ; C08G 1/830 ;
Abstract
Compact, transparent polyisocyanate polyaddition products are produced in a process by reacting (a) isocyanates with (b) compounds reactive to isocyanates, if desired in the presence of (c) catalysts and (d) auxiliaries and/or additives, which comprises using as (b) compounds reactive to isocyanates a mixture (i) which has an average functionality of >3 and an average hydroxyl number of from 300 to 950 mg KOH/g.