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:
Jun. 10, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Alan M Davis, Barrington, IL (US);
John Lawrence, Schaumburg, IL (US);
Deepak Mehta, Naperville, IL (US);
Assignee:
QPF, Inc. (Delaware Corporation), Streamwood, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ;
U.S. Cl.
CPC ...
428 358 ; 15624414 ; 15624417 ; 26417128 ; 26417314 ; 26417315 ; 26417319 ; 2642893 ; 2642902 ; 264300 ; 428 359 ; 428 3691 ; 428447 ; 428483 ; 428451 ; 428517 ;
Abstract
Polyester-containing multilayer biaxially-oriented polypropylene films are provided. According to the invention, a two- or three-layer polyester-containing cap layer is bonded to a monoaxially oriented polypropylene core, followed by orientation of the resulting composite in a direction transverse to the direction of orientation of the core layer. At least one tie layer is interposed between the core and the polyester. Advantageously, the polyester contains silicone fluid as a processing aid.