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:
Jul. 06, 1976
Filed:
Aug. 22, 1973
Applicant:
Inventors:
David N Vincent, Glenview, IL (US);
Ronald Golden, Mount Prospect, IL (US);
Assignee:
Champion International Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08J / ; C08G / ;
U.S. Cl.
CPC ...
260 / ; 252-2 ; 252-81 ; 252182 ; 260 / ; 260 / ; 260 / ; 260 / ; 264191 ; 264271 ;
Abstract
Microcapsules having an average diameter below 5 microns and containing a flame retardant material are incorporated into polymeric materials, such as polyurethane foams without affecting the structural integrity of the cell walls of the foam. The capsules are chemically bonded to the foam, as well as physically incorporated therein by employing polyhydroxy polymer-containing capsule wall materials which react with the isocyanate used in the polyurethane. The minute capsules are incorporated into paint to give increased hiding power as well as flame resistance, and are co-extruded into filaments.