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. 05, 1983
Filed:
Jun. 15, 1981
Applicant:
Inventor:
Timothy T Schenck, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
428 95 ; 524 13 ; 524 14 ; 524 52 ; 524287 ; 524290 ; 524291 ; 524306 ; 524308 ; 524310 ; 524311 ; 524423 ; 524424 ; 524425 ; 524437 ; 524442 ; 524445 ; 524456 ; 524474 ; 524477 ; 524508 ; 524513 ; 524524 ; 428 96 ; 428 97 ; 525222 ; 525228 ;
Abstract
Filled thermoplastic compositions useful as sound deadening sheeting having improved tensile elongation are obtained by blending about 5-60 percent by weight of a mixture of at least two copolymers of ethylene, having specified polar comonomer contents, about 40-90 percent by weight of filler, 0-15 percent by weight of plasticizer selected from the group consisting of processing oils, polyesters, polyethers and polyether esters, and optionally modifying resins such as elastomeric polymers and certain other ethylene and propylene homo- and copolymers.