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:
May. 15, 2001
Filed:
Apr. 04, 2000
Applicant:
Inventors:
Wolfgang Wehner, Zwingenberg, DE;
Hans-Helmut Friedrich, Lautertal, DE;
Assignee:
Witco Vinyl Additives GmbH, Lampertheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/34 ; C08K 5/15 ; C08K 5/05 ;
U.S. Cl.
CPC ...
C08K 5/34 ; C08K 5/15 ; C08K 5/05 ;
Abstract
The invention relates to 4-aminopyrimidinediones and oxazolidino-4-aminopyrimidinediones of the formula I and II given below, a process for their preparation, their use for stabilizing halogen-containing polymers, and compositions composed of compounds of the formula I or II and of chlorine-containing polymers, in particular PVC.