Asahi Kasei Kabushiki Kaisha

Asahi Kasei Kogyo Kabushiki Kaisha

Chihiro Yamane

Kunihiko Okajima

Toshihiko Matsui

Makiko Otsuka

Seiji Shimizu

A spherical cellulose material wherein the cellulose material is a water-insoluble polysaccharide formed by &#x3b2;-1,4-type sugar chain linkages, the degree of crystallinity is 70% or greater, and macrofibrils are formed radially from the center to the periphery.

Cellulose-type material

A cellulose dope comprising an aqueous sodium hydroxide solution and cellulose dissolved in the solution, wherein the cellulose dope has a sodium hydroxide concentration (C) of from 6.5 to 11% by weight, a cellulose content (Cc) of from 5 to 10% by weight, a viscosity average degree of polymerization (DPc) of the cellulose of from 350 to 1,200 and a cellulose dissolution ratio (Sc) of 99.0% by weight or more, and wherein the zero-shear viscosity (&#x3b7;) and the cellulose content (Cc) of the cellulose dope and the viscosity average degree of polymerization (DPc) of the cellulose in the cellulose dope satisfy the following formula (1):&#x3b7;&#x2003;&#x2003;(1)

Cellulose dope and method for producing the same

Process for producing celluose moldings

Growing community of inventors

Fuji, Japan

Chihiro Yamane