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. 14, 1990
Filed:
Feb. 25, 1988
Tadatoshi Ogawa, Ichihara, JP;
Teruaki Yoshida, Ichihara, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A multi-layer shrink film obtained by forming an assembly which comprises an interlayer comprising a flexible propylene resin having a Vicat softening point of 115.degree. C. or less and/or a linear very low-density polyethylene having a density less than 0.91 g/cm.sup.3 sandwiched between outermost layers comprising a propylene resin having a Vicat softening point higher than that of the flexible propylene resin of interlayer and within the range of 80.degree.-150.degree. C. followed by stretching said assembly is disclosed. The film obtained according to the present invention is well suited for a multi-layer shring packaging film and the like.