Stock material or miscellaneous articles – Composite – Of polyester
Reexamination Certificate
2007-07-24
2007-07-24
Chen, Vivian (Department: 1773)
Stock material or miscellaneous articles
Composite
Of polyester
C428S034900, C428S480000, C428S910000, C525S210000, C525S240000
Reexamination Certificate
active
11377401
ABSTRACT:
A heat-shrinkable film includes outer layers containing a polyester resin, and at least one inner layer being arranged between the outer layers and containing an olefinic resin including at least one ethylene-propylene-butene terpolymer. The film has an interlayer bonding strength between the inner layer and the outer layer of 3.0 N/15-mm or more. The inner layer may contain the ethylene-propylene-butene terpolymer in an amount of 45 percent by weight or more based on the total weight of the inner layer. The heat-shrinkable film is excellent in strength, abrasion resistance, solvent resistance, dimensional stability, and optical transparency, exhibits high shrinkability and high flexibility as a result of heating, and thereby yields beautiful finish after shrinkage. The heat-shrinkable film can be suitably recycled after use.
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European Search Report dated Sep. 14, 2006.
Armstrong, Kratz, Quintos Hanson & Brooks, LLP.
Chen Vivian
Fuji Seal International Inc.
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