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. 28, 2000
Filed:
Jan. 30, 1998
Applicant:
Inventor:
Heather V Landin, Baldwin, WI (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C08K / ;
U.S. Cl.
CPC ...
524 35 ; 523179 ; 524404 ; 524416 ; 524423 ; 524436 ; 524437 ; 524494 ; 524524 ; 524495 ;
Abstract
A flexible self-supporting fire barrier material comprising about 0.5 to about 25 weight % of a structural phase and greater than or equal to about 75 weight % to about 99.5 of inorganic heat absorbing compounds dispersed throughout the structural phase, based on a total weight % of the fire barrier material; the structural phase comprising 0.5 to about 10 weight % binder and 0.01 to about 15 weight % fibers, based on the total weight % of the fire barrier material; the inorganic heat absorbing compounds comprising an intumescent compound and an endothermic compound; the material having a density of at least about 0.5 g/cc.