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US 12,540,199 B2Granted
Molding material production method and molding material
AssigneeSeiko Epson Corporation
InventorsAtsushi Yamada, Shinobu Yokokawa, Hirofumi Hokari, Hajime Kakishita
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Abstract
A molding material production method according to the present disclosure includes an acylation step of conducting acylation reaction of cellulose, while irradiating, with microwaves of 0.4 GHz or more and 6.0 GHz or less, a mixture including the cellulose, an acylation agent, and a solvent, in which the solvent is an ionic liquid or a liquid including a salt, and the mixture includes the acylation agent at a ratio of 0.2 equivalents or more based on all hydroxy groups included in the cellulose.
Claims5
A molding material comprising:
- a cellulose derivative in which hydroxy groups included in cellulose are at least partially acylated;
- and
- at least one kind of ion selected from the group consisting of an imidazolium ion, a pyridinium ion, a lithium ion, and a chloride ion, wherein
- a content of the at least one kind of ion is in the range of 0.1% by mass or more and 0.5% by mass or less,
- a content ratio in the cellulose derivative of a low molecular weight component having a molecular weight of a quarter or less of a peak top molecular weight in a molecular weight distribution measured by gel permeation chromatography is 15% or less, and
- electroconductivity at a temperature of 23° C. and a relative humidity of 50% is 1.0×10−6 S/cm or more.
3 more elements
Dependencies are inferred from the claim text.