US 12,320,063 B2
Method of providing oil and/or grease resistant textile materials
Gijsbert Kroon, Giessenburg (NL); Meiyan Guo, Pudong New District (CN); and Xin Qu, Shanghai (CN)
Assigned to ISP INVESTEMTNS LLC, Wilmington, DE (US)
Appl. No. 17/425,667
Filed by ISP INVESTMENTS LLC, Wilmington, DE (US)
PCT Filed Jan. 27, 2020, PCT No. PCT/US2020/015180
§ 371(c)(1), (2) Date Jul. 23, 2021,
PCT Pub. No. WO2020/154721, PCT Pub. Date Jul. 30, 2020.
Claims priority of provisional application 62/796,978, filed on Jan. 25, 2019.
Prior Publication US 2022/0090316 A1, Mar. 24, 2022
Int. Cl. D06N 3/02 (2006.01); C11D 3/00 (2006.01); C11D 3/22 (2006.01); D06N 3/00 (2006.01)
CPC D06N 3/02 (2013.01) [C11D 3/0036 (2013.01); C11D 3/225 (2013.01); D06N 3/0056 (2013.01); C11D 2111/12 (2024.01); D06N 2209/146 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for providing a textile material which is resistant to the deposition of oil-and grease-based air pollutants, the method comprising the steps of:
i. treating the textile material with an oil and grease resistant composition comprising blocky carboxymethyl cellulose (CMC) and optionally at least one adjunct material; and
ii. drying the resultant textile material of step (i) wherein the blocky carboxymethyl cellulose has a degree of substitution (DS) of at least 0.4, and a degree of blockiness (DB) of at least 0.5,
wherein the blocky carboxymethyl cellulose has a molecular weight in the range of from 100,000 Daltons to 1.5 million Daltons.