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. 18, 2001
Filed:
Mar. 21, 2000
Applicant:
Inventor:
Vincent R. Landi, Danielson, CT (US);
Assignee:
World Properties, Inc., Lincolnwood, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D03D 3/00 ;
U.S. Cl.
CPC ...
D03D 3/00 ;
Abstract
An electrical substrate material is presented comprising a resin matrix which includes a thermosetting polybutadiene or polyisoprene resin, an ethylene propylene rubber, and optionally a thermoplastic unsaturated butadiene- or isoprene-containing polymer; a particulate filler, a flame retardant additive, a curing agent, and a woven or unwoven fabric. The presence of the ethylene propylene rubber enhances the heat age properties of the substrate material, particularly the dielectric strength and the mechanical properties, while other electrical, chemical, and mechanical properties of the material are not adversely effected.