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. 29, 1991
Filed:
Oct. 18, 1989
Applicant:
Inventors:
Francis P McCullough, Jr, Lake Jackson, TX (US);
R Vernon Snelgrove, Damon, TX (US);
Bhuvenesh C Goswami, Clemson, SC (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04H / ; D04H / ;
U.S. Cl.
CPC ...
28103 ; 28104 ; 28107 ; 28112 ; 28117 ;
Abstract
A process for producing an interlocked fibrous structure useful as a thermal insulating and/or sound absorbing structure comprising at least one batting of non-flammable carbonaceous fibers, by the steps comprising implanting said batting with non-carbonaceous polymeric fibers and then heat treating the structure in an inert atmosphere so as to transform said non-carbonaceous fibers into substantially permanently set carbonaceous fibers.