COMPOSITION CONTAINING CRYSTALLINE CELLULOSE COMPOSITE
First Claim
1. A composition comprising 100 parts by mass of a pigment, 0.01 to 50 parts by mass of a cellulose composite and water, wherein the composition has a solid content of more than 25% by mass and a viscosity of 30 mPa·
- s or more, and wherein the cellulose composite contains 0.5% to 50% by mass of a hydrophilic polymer having an acid value of 2.0 or more and a weight-average molecular weight of 1×
103 to 1×
107 and 50% to 99.5% by mass of a crystalline cellulose, and the average particle size of the cellulose composite is 10 μ
m or less.
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Accused Products
Abstract
Disclosed is a composition containing 100 parts by mass of a pigment, 0.01-50 parts by mass of a cellulose composite and water. The composition has a solid content of more than 25% by mass, and a viscosity of not less than 30 mPa·S. The cellulose composite contains 0.5-50% by mass of a hydrophilic polymer having an acid value of not less than 2.0 and a weight average molecular weight of from 1×103 to 1×107 and 50-99.5% by mass of a crystalline cellulose. The cellulose composite has an average particle diameter of not more than 10 μm.
13 Citations
11 Claims
-
1. A composition comprising 100 parts by mass of a pigment, 0.01 to 50 parts by mass of a cellulose composite and water, wherein the composition has a solid content of more than 25% by mass and a viscosity of 30 mPa·
- s or more, and wherein the cellulose composite contains 0.5% to 50% by mass of a hydrophilic polymer having an acid value of 2.0 or more and a weight-average molecular weight of 1×
103 to 1×
107 and 50% to 99.5% by mass of a crystalline cellulose, and the average particle size of the cellulose composite is 10 μ
m or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- s or more, and wherein the cellulose composite contains 0.5% to 50% by mass of a hydrophilic polymer having an acid value of 2.0 or more and a weight-average molecular weight of 1×
-
11. A coating additive comprising a cellulose composite, wherein the average particle size of the cellulose composite is 10 μ
- m or less when measured in the form of a water dispersion of the cellulose composite having a solid content concentration of 1% that is prepared by dispersing the cellulose composite in water using a propeller stirrer equipped with four paddle blades each having a radius of 4 cm at 25°
C. at 500 rpm for 20 minutes, and the thixotropic index (TI value) of the cellulose composite is 4 or more when measured in the form of a water dispersion of the cellulose composite prepared under the same conditions as described above except that the solid content concentration is set at 2%.
- m or less when measured in the form of a water dispersion of the cellulose composite having a solid content concentration of 1% that is prepared by dispersing the cellulose composite in water using a propeller stirrer equipped with four paddle blades each having a radius of 4 cm at 25°
Specification