Multilayer film

Details Multilayer film Multilayer film

2005-03-28

2011-10-04

Sample, David (Department: 1783)

Stock material or miscellaneous articles

Composite

Of polyester

C428S213000, C428S220000

Reexamination Certificate

active

08029909

ABSTRACT:
A multilayer film of which the optical properties hardly change due to heat and where detachment hardly occurs between layers is provided. The multilayer film has a structure where five or more layers made of thermoplastic resin A (layers A) and five or more layers made of thermoplastic resin B (layers B) having a basic skeleton that is the same as that of thermoplastic resin A are alternately layered on top of each other, and is wherein at least one reflection peak is provided and the difference between the reflectance of the reflection peak before heating and after heating for 30 minutes in an atmosphere of 150° C. is no greater than 15%.

REFERENCES:
patent: 5360659 (1994-11-01), Arends et al.
patent: 5389324 (1995-02-01), Lewis et al.
patent: 6025897 (2000-02-01), Weber et al.
patent: 2001/0019182 (2001-09-01), Hebrink et al.
patent: 2002-160339 (2002-06-01), None
patent: 2003-075920 (2003-03-01), None
patent: 2004-338390 (2004-12-01), None
patent: 2005-142105 (2005-06-01), None

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