	US 12,031,016 B2
	Dispersion composition containing carboxymethyl cellulose
Kazuhiko Inoue, Tokyo (JP); Hiroyoshi Suzuki, Tokyo (JP); Kasumi Nishigaya, Tokyo (JP); and Takeshi Nakatani, Tokyo (JP)
Assigned to NIPPON PAPER INDUSTRIES CO., LTD., Tokyo (JP)
Appl. No. 17/056,291
Filed by NIPPON PAPER INDUSTRIES CO., LTD., Tokyo (JP)
PCT Filed May 17, 2019, PCT No. PCT/JP2019/019675 § 371(c)(1), (2) Date Nov. 17, 2020, PCT Pub. No. WO2019/221273, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 2018-096479 (JP), filed on May 18, 2018; and application No. 2018-182110 (JP), filed on Sep. 27, 2018.
Prior Publication US 2021/0253831 A1, Aug. 19, 2021
Int. Cl. C08L 1/28 (2006.01); A23K 20/163 (2016.01); A23L 2/52 (2006.01); A23L 29/262 (2016.01); A61K 8/04 (2006.01); A61K 8/73 (2006.01); A61K 9/10 (2006.01); A61K 47/38 (2006.01); A61Q 19/00 (2006.01); C08J 3/07 (2006.01); C09D 7/43 (2018.01); D21H 17/26 (2006.01)

CPC C08L 1/286 (2013.01) [A23K 20/163 (2016.05); A23L 2/52 (2013.01); A23L 29/262 (2016.08); A61K 8/04 (2013.01); A61K 8/731 (2013.01); A61K 9/10 (2013.01); A61K 47/38 (2013.01); A61Q 19/007 (2013.01); C08J 3/07 (2013.01); C09D 7/43 (2018.01); D21H 17/26 (2013.01); A23V 2002/00 (2013.01); A61K 2800/48 (2013.01); C08L 2201/54 (2013.01)]

4 Claims

1. A method for producing a dispersion composition, comprising

step 1 of preparing a mixture comprising a carboxymethyl cellulose having a degree of carboxymethyl substitution of 0.20 or more and having a degree of crystallization of cellulose type I of 50% or more, and a water-based medium, and

step 2 of subjecting the mixture obtained in step 1 to stirring at a rotational speed of 8000 to 15000 rpm for 1 minute or more, thereby obtaining a dispersion composition, wherein

the carboxymethyl cellulose in the dispersion composition has a median diameter of 10.0 to 150.0 μm; and

wherein the dispersion composition has a viscosity (6 rpm, 25° C.) of 1000 mPa·s to 30000 mPa·s at a solid content of the carboxymethyl cellulose of 1% (w/v).