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:
Jan. 17, 1978
Filed:
Jan. 27, 1975
Applicant:
Inventors:
Rudolph W Billing, Littleton, MA (US);
George K Castle, Chelmsford, MA (US);
Assignee:
Avco Corporation, Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
156 82 ; 156 71 ; 427373 ; 428247 ; 428256 ; 428313 ; 428457 ; 428920 ; 428921 ;
Abstract
Intumescent coatings protect structural members from exceedingly high temperatures during fires. Most intumescents, in their virgin condition, can be made to bond tenaciously to the substrate surface it is to protect. When activated by a fire, intumescent materials swell and undergo chemical degradation, and in the process a char is produced. The char insulates the substrate from the heat flux (fire). A reticulated structure is provided to anchor the char to the substrate.