CELLULOSE MIXED FATTY ACID ESTER AND CELLULOSE MIXED FATTY ACID ESTER COMPOSITION

WIPO Patent Application WO/2022/085120

A1

This cellulose mixed fatty acid ester has an acetyl group and an acyl group having 3 or more carbon atoms. The degree of acetyl substitution DSa is at least 1.5 and less than 2.6. The degree of acyl group substitution DSb by the acyl group having 3 or more carbon atoms is more than 0 and not more than 0.30. The total degree of substitution DS, which is the sum of the degree of acetyl substitution DSa and the degree of acyl substitution DSb, is not more than 2.6. This cellulose mixed fatty acid ester composition contains this cellulose mixed fatty acid ester and an additive. The additive is selected from the group consisting: of (a) a substance having a pH of 8 or more at 20°C when in the form of a 1 wt% aqueous solution; (b) a substance whose solubility in water at 20ºC is 2 wt% or more; and (c) a substance that is biodegradable in seawater.

JP5559051	The film formed from the mixed cellulose ester of a low double reflex, and it
JP2006249347	METHOD FOR PRODUCING CELLULOSE ESTER
WO/2008/100566	CELLULOSE ESTERS AND THEIR PRODUCTION IN CARBOXYLATED IONIC LIQUIDS

KUSUMOTO MASAAKI (JP)
HIGUCHI AKIHIRO (JP)
HASHIZUME TOMOHIRO (JP)
GA KYOKUTOU (JP)

PCT/JP2020/039574

April 28, 2022

October 21, 2020

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DAICEL CORP (JP)

C08B3/16; C08L1/14

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PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)

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