A fibrous cellulose having a high resin reinforcing effect and a method for manufacturing the same, and a fibrous cellulose composite resin having high strength and a method for manufacturing the same. A fibrous cellulose has an average fiber width of 0.1 ?m or more, an average fiber length of 0.02 to 3.0 mm, and a fibrillation ratio of 1.0% or more. A kneaded product of this fibrous cellulose and a resin is formed into a fibrous cellulose composite resin. In manufacturing the fibrous cellulose, a raw material fiber is defibrated so as to have an average fiber width of 0.1 ?m or more, an average fiber length of 0.02 to 3.0 mm, and a fibrillation ratio of 1.0% or more. The fibrous cellulose obtained by this method and a resin are kneaded to manufacture a fibrous cellulose composite resin.

A fibrous cellulose-containing material which is excellent in dispersibility of cellulose fiber, is easy to dewater, and is not required to contain an organic solvent, and a method for producing the same; and dried fibrous cellulose and a fibrous cellulose composite resin each obtained using the fibrous cellulose-containing material and a method for producing the same. A dispersion liquid of cellulose microfiber is prepared by fibrillating raw material pulp to the extent that the average fiber width is 0.1 ?m or more, a fibrous cellulose-containing material is prepared by mixing the dispersion liquid with resin powder having an average particle size of 1 to 1,500 ?m, dried fibrous cellulose is prepared by drying the fibrous cellulose-containing material, and the dried fibrous cellulose is kneaded to obtain a fibrous cellulose composite resin.

A fibrous cellulose-containing material which is excellent in dispersibility of cellulose fiber, is easy to dewater, and is not required to contain an organic solvent, and a method for producing the same; and dried fibrous cellulose and a fibrous cellulose composite resin each obtained using the fibrous cellulose-containing material and a method for producing the same. A dispersion liquid of cellulose microfiber is prepared by fibrillating raw material pulp to the extent that the average fiber width is 0.1 ?m or more, a fibrous cellulose-containing material is prepared by mixing the dispersion liquid with resin powder having an average particle size of 1 to 1,500 ?m, dried fibrous cellulose is prepared by drying the fibrous cellulose-containing material, and the dried fibrous cellulose is kneaded to obtain a fibrous cellulose composite resin.

The application relates to oral care compositions comprising substantive polyesters formed from xylitol, polycarboxylic acids (or esters, acid halides or anhydrides thereof) and optionally arginine. The formed polyesters or polyesteramides are active in biofilm inhibition and dissolution to maintain clean teeth.

The application relates to oral care compositions comprising substantive polyesters formed from xylitol, polycarboxylic acids (or esters, acid halides or anhydrides thereof) and optionally arginine. The formed polyesters or polyesteramides are active in biofilm inhibition and dissolution to maintain clean teeth.

The application relates to oral care compositions comprising substantive polyesteramides formed from polyols, polycarboxylic acids (or esters, anhydrides or halides thereof) and arginine. The formed polyesteramides are active in biofilm inhibition, biofilm dissolution and retarding or preventing acid production from oral bacteria.

An apparatus for continuously producing chemically-modified cellulose, the apparatus having a first mechanism for transporting a fine-powder cellulose fiber starting material and a hydrophobizing chemical substance, a specific extruder, a solvent tank connected to the extruder, and a dryer connected to the solvent tank, and a method for continuously producing chemically-modified cellulose, the method having a step of washing, in the solvent tank, chemically-modified cellulose having been produced out of the fine-powder cellulose fiber starting material and the hydrophobizing chemical substance in the extruder, and then drying the chemically-modified cellulose in the dryer, in order to remove any unreacted hydrophobizing chemical substance.

An apparatus for continuously producing chemically-modified cellulose, the apparatus having a first mechanism for transporting a fine-powder cellulose fiber starting material and a hydrophobizing chemical substance, a specific extruder, a solvent tank connected to the extruder, and a dryer connected to the solvent tank, and a method for continuously producing chemically-modified cellulose, the method having a step of washing, in the solvent tank, chemically-modified cellulose having been produced out of the fine-powder cellulose fiber starting material and the hydrophobizing chemical substance in the extruder, and then drying the chemically-modified cellulose in the dryer, in order to remove any unreacted hydrophobizing chemical substance.

A method for producing surface modified nanocellulose material is described comprising: (i) providing a mixture of an organic acid and at least one solvent; (ii) providing a fibrous cellulosic material is an unprocessed form: (iii) suspending the fibrous cellulosic material in the mixture of the organic acid at a temperature of less than 100? C. to form a suspension; (iv) maintaining the suspension for a period of time to provide a surface modified fibrous cellulose material; and (v) passing the suspension through at least one chamber having a large gap, at a high shear to produce surface modified cellulose nanofibrils, wherein the organic acid is a dicarboxylic acid, a tricarboxylic acid or a mixture thereof. Also described are surface modified cellulose nanofibrils, surface modified nanocrystals and uses of the same.

The present invention describes tunable methods of treating cellulosic materials with a composition that provides increased hydrophobicity and/or lipophobicity to such materials without sacrificing the biodegradability thereof. The methods as disclosed provide for binding of saccharide fatty acid esters on cellulosic materials, including that the disclosure provides products made by such methods. The materials thus treated display higher hydrophobicity, lipophobicity, barrier function, and mechanical properties, and may be used in any application where such features are desired.