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:
Aug. 22, 1995
Filed:
Oct. 25, 1993
Applicant:
Inventors:
Vinodkumar Mehra, Wilmington, DE (US);
Edmund A Flexman, Jr, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 357 ; 428 366 ; 428 3691 ; 428515 ; 4284253 ; 4284758 ; 4284763 ; 4284774 ; 428501 ; 428506 ; 428524 ;
Abstract
Laminar articles are disclosed comprising a heterogeneous melt of (a) a polyolefin, (b) a barrier resin comprising a blend of a condensation polymer incompatible with the polyolefin such as a polyamide and a phenol-formaldehyde resin, and (c) a compatibilizer. A process for making such laminar articles is also disclosed. Multilayer structures incorporating this barrier resin are also disclosed.