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. 13, 1982
Filed:
Mar. 30, 1979
Applicant:
Inventors:
Paolo Parrini, Ferrara, IT;
Vittorio Ciaccia, Ferrara, IT;
Guglielmo Corrieri, Ferrara, IT;
Gian P Righi, Ferrara, IT;
Assignee:
Montedison S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; D04H / ;
U.S. Cl.
CPC ...
428288 ; 428296 ; 428340 ; 428378 ; 428394 ; 428396 ; 428407 ; 428903 ; 181294 ; 252 62 ;
Abstract
Formed structures comprising synthetic thermoplastic fibrils or fibrids having a surface area (specific surface) higher than 1 m.sup.2 /g and useful for soundproofing purposes are provided. Methods for making the structures are also disclosed.