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:
Apr. 11, 1995
Filed:
Aug. 14, 1992
Applicant:
Inventors:
Peter K Kim, Danville, CA (US);
Peter E Pierini, Berkeley, CA (US);
Ritchie A Wessling, Berkeley, CA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C08G / ;
U.S. Cl.
CPC ...
428-1 ; 428 344 ; 428 345 ; 428212 ; 428224 ; 428245 ; 428286 ; 428288 ; 428289 ; 428303 ; 428408 ; 428920 ; 4284111 ; 528330 ; 528331 ; 528337 ; 528338 ; 528348 ; 528352 ; 528353 ; 528364 ;
Abstract
A structural panel for a vehicle or building contains a substrate and a layer of flame resistant polybenzazole polymer. If the substrate is heat resistant, the panel can serve as a fire barrier. If the substrate is not heat resistant, the polybenzazole layer can still serve to delay ignition and contain any volatile gases and molten polymer that forms when the panel is subjected to heat.