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. 15, 2003
Filed:
Jun. 26, 2001
Applicant:
Inventors:
Thomas Kevin Foreman, Sayre, PA (US);
Mark Robert McKeever, Sayre, PA (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/006 ; C08F 2/056 ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
C08F 2/006 ; C08F 2/056 ; C08F / ; C08F / ;
Abstract
A polymeric film composition, which can readily be applied to a sheet-configured substrate and which resists creep at room temperature, even when the sheet/film combination is stored as a roll, is disclosed. The polymeric film composition has a viscosity of at least 3×10 Pa-s at a predetermined first lower temperature and at a shear stress of 10,000 Pa and a viscosity no greater than 1×10 Pa-s at a predetermined second higher temperature and at a shear stress of 50,000 Pa.