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:
Dec. 03, 1991
Filed:
Dec. 17, 1990
Gunze Limited, Ayabe, JP;
Abstract
The invention provides a heat-shrinkable foamed composite film which is a film laminate composed of: (A) a laterally monoaxially-oriented foamed film of an olefin polymer having a thickness of about 40 to about 400 .mu.m and being heat-shrinkable predominantly in a lateral direction, (B) a laterally monoaxially-oriented film of an olefin polymer having a thickness of about 5 to about 50 .mu.m and being heat-shrinkable predominantly in a lateral direction, and (C) a laterally monoaxially-oriented printed polyester film having a thickness of about 5 to about 50 .mu.m and being heat-shrinkable predominantly in a lateral direction, the film laminate being formed by laminating the films (A), (B) and (C) in this order so that the printed surface of the film (C) is faced with the film (B), and the film laminate having a heat shrinkage factor of about 25 to about 50% in a lateral direction and about 0 to about 10% in a longitudinal direction under the conditions of 100.degree. C. for 30 seconds and has a Young's modulus of about 40 to about 170 kg/mm.sup.2 in a lateral direction and a tensile strength of about 5.0 to about 15.0 kg/cm in a lateral direction. The invention also provides a process for preparing the above composite film.