Abstract: A spherical cellulose material wherein the cellulose material is a water-insoluble polysaccharide formed by ?-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.

Abstract: A cellulose dope comprising an aqueous sodium hydroxide solution and cellulose dissolved in the solution, wherein the cellulose dope has a sodium hydroxide concentration (CNa) 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 (?0) 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): ?0=kCcm×DPcp ??(1) wherein: ?0 represents the zero-shear viscosity (mPa·s) of the cellulose dope, Cc represents the cellulose content (% by weight) of the cellulose dope, DPc represents the viscosity average degree of polymerization of the cellulose in the cellulose dope, k=3.9×10?11, m is a number of from 5 to 7, and p is a number of from 3 to 4.

Abstract: A spherical cellulose material wherein the cellulose material is a water-insoluble polysaccharide formed by &bgr;-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.

Abstract: An edible body composed of a cellulose having a crystal form of cellulose II, which is regenerated from an aqueous solution of an alkali metal hydroxide, and at least one guest component selected from polypeptides and edible polysaccharides. The cellulose II or a homogeneous mixture of the cellulose II and polysaccharide is present in the form of a sea component or a continuous phase in an amount of at least 10% based on the edible body.

Abstract: Described is a cellulose dope which is an aqueous alkali solution containing substantially at least 3% by weight of cellulose having a degree of polymerization of at least 100, wherein in the .sup.13 C-NMR spectrum of the cellulose, the C.sub.4 -position carbon peak is found at a magnetic field higher by at least 7 ppm than the magnetic field of the C.sub.4 -position carbon peak of solid cellulose attributed to the strong intramolecular hydrogen bond. This dope is prepared by maintaining a mixture comprising 100 weight parts of cellulose, which may have any crystal form, and 10 to 1000 weight parts of a hydrogen bond-cleaving solution at 100.degree. C. to 350.degree. C. under a pressure of 10 to 250 atmospheres, promptly exposing the mixture to the ambient atmosphere, mixing the resulting cellulose with an aqueous alkali solution maintained at a temperature not higher than 50.degree. C., and then stirring the mixture at a temperature not higher than 10.degree. C.

Abstract: Disclosed is carboxymethyl cellulose or its salt derived from cellulose having a crystal form of cellulose II, wherein the total saturation degree <<F>> represented by the following formula:<<F>>=<<f.sub.2 >>+<<f.sub.3 >>+<<f.sub.6 >>wherein <<f.sub.2 >>, <<f.sub.3 >> and <<f.sub.6 >> represent the probabilities of substitution of substituent groups for OH groups located at the C.sub.2, C.sub.3 and C.sub.6 positions, respectively, of the glucose ring constituting the cellulose,is in the range of from 0.10 to 0.64. This carboxymethyl cellulose or its salt is excellent in liquid absorbing property and is prepared by treating cellulose having a crystal form of cellulose II with an alkali and then reacting the treated cellulose with monochloroacetic acid or sodium monochloroacetate. This carboxymethyl cellulose or its salt can be used in the form of a structure such as a sheet, a woven fabric or a nonwoven fabric.

Abstract: A mesophase dope useful for producing shaped articles, for example, filaments and films, comprises at least 10% by weight of at least one cellulose derivative and the balance consisting of an aqueous solution of at least 5% by weight of at least one inorganic acid, the dope exhibiting the mesophase property even in the case where no fluid dynamic stress is applied thereto.

Abstract: A cellulose sulfate salt having a heparinic action is provided, which satisfies requirements of 0.8.ltoreq.<<F>>.ltoreq.2.6, <<f.sub.2 >>.gtoreq.<<f.sub.3 >> and <<f.sub.2 >>.gtoreq.<<f.sub.6 >> wherein <<f.sub.2 >>, <<f.sub.3 >> and <<f.sub.6 >> stand for probability of substitution of atoms H in the OH groups bonded to the C.sub.2, C.sub.3 and C.sub.6 positions of the glucopyranose ring unit by sulfuric acid radicals, respectively, and <<F>> stands for the total substitution degree which is the sum of <<f.sub.2 >>, <<f.sub.3 >> and <<f.sub.6 >>. The cellulose sulfate salt is prepared by reacting a cellulose having a crystal form I with an SO.sub.3 /amine or SO.sub.3 /amide complex in an amount of 2 to 4 mole equivalents per glucose unit of the cellulose at -10.degree. C. to 40.degree. C.

Abstract: A mesophase dope useful for producing shaped articles, for example, filaments and films, comprises at least 10% by weight of at least one cellulose derivative and the balance consisting of an aqueous solution of at least 5% by weight of at least one inorganic acid, the dope exhibiting the mesophase property even in the case where no fluid dynamic stress is applied thereto.

Abstract: Vegetable beverages are clarified or stabilized by using an adsorbent material consisting essentially of a specified N-substituted polyamide or polyamide mixture. The specified polyamide is such that 0.5% to 65% in number of the hydrogen atoms linked to the nitrogen atoms of the amide linkages in the main chain are substituted with substituents represented by the formula-(CH.sub.2).sub.n -Rwhere n is an integer of 1 to 4 and R is at least one member selected from a hydrogen atom, a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms and Rs in the molecule are the same as or different from each other.