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:
Nov. 16, 1999
Filed:
Feb. 11, 1997
Applicant:
Inventors:
Martin Sicken, Cologne, DE;
Horst Staendeke, Lohmar, DE;
Assignee:
Clariant GmbH, Hurth-Knapsack, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524127 ; 521 85 ; 521107 ; 528 72 ;
Abstract
The flame-resistant polyurethanes of the invention comprise, as flameproofing agents, mixtures of oligomeric phosphoric acid esters which carry hydroxyalkoxy groups, of the formula I ##STR1## in which q denotes an average chain length of 0.5 to 10, R.sub.1 is a hydroxyl-containing radical of the formula II a,