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:
Mar. 16, 1976
Filed:
Oct. 19, 1973
Applicant:
Inventors:
Carl Fraser Mathews, Hitchin, EN;
Christopher Deverell, Hitchin, EN;
Gordon Edmund Pears, Harpenden, EN;
Peter George Knowles, Luton, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; B32B / ;
U.S. Cl.
CPC ...
428220 ; 96 8 / ; 260 / ; 260873 ; 264 454 ; 282 / ; 2642 / ; 428483 ;
Abstract
Opaque voided films having a total luminous transmission not exceeding 25% are made from blends of a polyester preferably polyethylene terephthalate, with 3 to 27% of an ethylene or propylene polymer, prepared by dry blending. One end use of the film, as a base for photographic prints is also described.