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. 17, 1998
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Ernst Wipfelder, Munich, DE;
Winfried Plundrich, Germering, DE;
Assignee:
Lemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524786 ; 524788 ; 524789 ; 525523 ; 525528 ; 528408 ; 528409 ;
Abstract
For improved flame retardant finishing and better processability of an epoxy anhydride reaction resin system, the present invention provides a reaction resin system supplemented with phosphinic and/or phosphonic acid anhydride as the hardener component. The phosphorus-containing anhydrides do not deteriorate the hardening characteristics. Molded members manufactured therefrom exhibit adequate flame retardant behavior even with slight proportions of phosphinic or phosphonic acid anhydride given a property profile that is otherwise unmodified.