	US 12,377,029 B2
	Alcohol composition
Takane Sudo, Joetsu (JP); and Shingo Niinobe, Joetsu (JP)
Assigned to SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
Filed by SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
Filed on Sep. 6, 2021, as Appl. No. 17/467,272.
Claims priority of application No. 2020-150857 (JP), filed on Sep. 8, 2020.
Prior Publication US 2022/0071869 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/34 (2006.01); A01N 25/02 (2006.01); A01N 25/10 (2006.01); A01N 31/02 (2006.01); A01N 43/16 (2006.01); A01P 1/00 (2006.01); A61K 8/73 (2006.01); A61K 9/00 (2006.01); A61K 31/045 (2006.01); A61K 47/38 (2006.01); A61P 17/00 (2006.01); A61P 31/02 (2006.01); A61Q 17/00 (2006.01); A61Q 19/00 (2006.01)

CPC A61K 8/34 (2013.01) [A01P 1/00 (2021.08); A61K 8/731 (2013.01); A61K 9/0014 (2013.01); A61K 31/045 (2013.01); A61K 47/38 (2013.01); A61P 17/00 (2018.01); A61P 31/02 (2018.01); A61Q 17/005 (2013.01); A61Q 19/00 (2013.01); A61K 2800/30 (2013.01); A61K 2800/48 (2013.01)]

6 Claims

1. An alcohol composition consisting essentially of 60.0 parts by mass to 93.0 parts by mass of at least one alcohol selected from the group consisting of ethanol and isopropanol, 3.0 parts by mass to 39.9 parts by mass of water, and 0.1 parts by mass to 4.0 parts by mass of at least one water-soluble cellulose ether selected from the group consisting of hydroxypropyl methylcellulose (HPMC) and methylcellulose (MC),

wherein the alcohol composition has a viscoelasticity loss tangent (tan δ) in the range of 0.10 to 1.00 when measured at 20° C. under the condition of being a frequency of 1 Hz and a strain of 0.1%,

wherein the alcohol composition does not comprise at least one additive selected from the group consisting of hydroxyethyl cellulose and carboxyvinyl polymer, and

wherein the water-soluble cellulose ether is characterized by the following parameters:

a. the degree of substitution (DS) of methoxy groups in HPMC is ≥1.00;

b. the molar substitution (MS) of hydroxypropoxy groups in HPMC is ≥0.10; or

c. the DS of methoxy groups in MC is from 1.00 to 2.20.