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:
Jul. 02, 2002
Filed:
Sep. 29, 2000
Applicant:
Inventors:
Tomohisa Okuda, Moriyama, JP;
Yuji Hanaoka, Moriyama, JP;
Assignee:
Gunze Limited, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/08 ; B32B 2/730 ; B32B 2/732 ; B32B 2/736 ; B29C 6/106 ;
U.S. Cl.
CPC ...
B32B 1/08 ; B32B 2/730 ; B32B 2/732 ; B32B 2/736 ; B29C 6/106 ;
Abstract
The present invention provides a heat shrinkable film comprising at least one layer of a thermoplastic resin and having a heat shrinkage in the main orientation direction of 10% or less after treatment in a hot water at 70° C. for 2 seconds, and 65% or more after treatment in hot water at 90° C. for 10 seconds, the heat shrinkable film preferably having a natural shrinkage in the main orientation direction of 2.5% or less after being allowed to stand at 40° C. for 7 days.