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. 28, 1981
Filed:
Sep. 20, 1979
Applicant:
Inventors:
Terence J Taylor-Brown, Ipswich, GB;
James Jack, deceased, late of Mistley, GB;
Assignee:
Bakelite Xylonite Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428310 ; 264 53 ; 264 54 ; 264321 ; 428311 ; 428323 ; 423332 ; 428500 ;
Abstract
A stretched polyolefin film, suitable for use as a packaging material, comprising a uniform cellular structure produced by the use of a blowing agent and consisting essentially of a crystalline having a broad molecular weight distribution and a low Melt Flow Index wherein the film contains 0-25% by weight of fillers or pigments and wherein the film has a thickness of 11 mils or less.