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US 7,910,654 B2Granted
Polymer blend film containing cyclic polyolefin
AssigneeFUJIFILM Corporation
InventorJun Takeda
Life of this patent
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Abstract
A polymer blend film contains a film forming material containing at least a polymer having an absolute value of an intrinsic birefringence of 0.02 or less, and a cyclic olefin resin, wherein the film has a haze of 5% or less.
Claims8
A polymer blend film comprising:
- a film forming material comprising at least a polymer having an absolute value of an intrinsic birefringence of 0.02 or less, and a cyclic olefin resin, wherein
- the film has a haze of 5% or less;
- wherein the cyclic olefin resin has a solubility parameter value of 19.5 or greater but not greater than 23.0;
- wherein the film forming material satisfies a following formula:
- 0≦|ΔSP|≦4.5
- wherein ΔSP represents an absolute value of a difference in the solubility parameter value between the cyclic olefin resin and the polymer.
3 more elements
Dependencies are inferred from the claim text.