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:
Feb. 25, 2003
Filed:
Aug. 30, 2001
Applicant:
Inventors:
Assignee:
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/00 ; B32B 2/706 ; B32B 2/716 ; B32B 2/736 ;
U.S. Cl.
CPC ...
B32B 7/00 ; B32B 2/706 ; B32B 2/716 ; B32B 2/736 ;
Abstract
Layered heat-shrinkable films disclosed herein are suitable for labels on PET bottles requiring label fitting and heat shrinkage at a high speed, which film has at least three layers, that is, both outer layers and an intermediate layer, wherein the heat shrinkability in the main shrinkage direction of the film is 20% or higher after treatment in hot water at 70° C. for 5 seconds and 35% to 55% after treatment in hot water at 75° C. for 5 seconds and 50% to 60% after treatment in hot water at 80° C. for 5 seconds, and the compressive strength of a label formed from the film meets the following formula (1): Y>X where Y is compressive strength (mN) and X is film thickness (&mgr;m).