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US 9,932,488 B2Granted
Resin composition, optical compensation film using same, and production method for same
AssigneeTosoh Corporation
InventorsMasayasu Ito, Shinsuke Toyomasu, Takahiro Kitagawa
Life of this patent
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Abstract
A resin composition including from 30 to 99 wt % of a cellulose-based resin represented by the following formula (1) and from 70 to 1 wt % of a fumaric acid ester polymer containing 30 mol % or more of a fumaric acid diester residue unit represented by the following formula (2); an optical compensation film using the same; and a production method of the optical compensation film. (wherein R1 to R3 represent a substituent having a carbon number of 1 to 12, and R4 and R5 represent an alkyl group having a carbon number of 1 to 12).
Claims17
A resin composition, comprising:
- from 30 to 99 wt % of a cellulose-based resin as a cellulose ether, represented by the following formula (1), wherein carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose are excluded;
- and
- from 70 to 1 wt % of a fumaric acid ester polymer containing from 30 to 95 mol % of a fumaric acid diester residue unit represented by the following formula (2) and from 70 to 5 mol % of a furamic acid monoester residue unit represented by the following formula (3):
- wherein each of R1, R2 and R3 independently represents a substituent having a carbon number of 1 to 12:
- wherein R4 and R5 represent an alkyl group having a carbon number of 1 to 12,
- wherein R6 represents an alkyl group having a carbon number of 1 to 12.
3 more elements
Dependencies are inferred from the claim text.