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US 11,028,186 B2Granted
Cellulose derivative, cellulose resin composition, molded body and product using same
AssigneeNEC Corporation
InventorsKiyohiko Toyama, Masatoshi Iji, Midori Shimura, Shukichi Tanaka
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Abstract
A cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, a long-chain organic group having 7 or more carbon atoms and a high refractive-index organic group.
Claims13
A cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, a long-chain organic group having 7 or more carbon atoms, and a high refractive-index organic group,
- wherein the high refractive-index organic group is an aromatic phosphoric acid ester group.
A cellulose resin composition, comprising:
- a cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, a long-chain organic group having 7 or more carbon atoms, and a high refractive-index organic group;
- and
- a colorant,
- wherein the colorant is a carbon black,
- the carbon black is an acidic carbon black having a pH value of 5 or less,
- a content of the colorant relative to a total of the cellulose resin composition falls within a range of 0.05 to 10% by mass,
- the high refractive-index organic group is an aromatic phosphoric acid ester group.
4 more elements
Dependencies are inferred from the claim text.