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:
Sep. 15, 1992
Filed:
Apr. 03, 1991
Applicant:
Inventor:
Heinrich Horacek, Linz, AT;
Assignee:
Chemie Linz Gesellschaft m.b.H., Linz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524185 ; 524183 ; 524184 ;
Abstract
Use of spirocyclic boric acid esters of the general formula ##STR1## as flame retardants for plastics. R.sub.1 and R.sub.2 either independently of one another represent divalent radicals of alcohols having 2 to 6 OH groups or together represent the tetravalent radical of pentaerythritol, Z represents an N base and m represents an integer from 1 to 3.