US 12,129,399 B2
Freeze thaw additive composition
Ling Zhong, Shanghai (CN); Jing Ji, Shanghai (CN); Cheng Shen, Shanghai (CN); and Jianhai Mu, Shanghai (CN)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 17/432,408
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Apr. 16, 2019, PCT No. PCT/CN2019/082904
§ 371(c)(1), (2) Date Aug. 19, 2021,
PCT Pub. No. WO2020/210988, PCT Pub. Date Oct. 22, 2020.
Prior Publication US 2022/0306869 A1, Sep. 29, 2022
Int. Cl. C09D 133/08 (2006.01); C09D 5/02 (2006.01)
CPC C09D 5/024 (2013.01) [C09D 133/08 (2013.01)] 11 Claims
 
1. A freeze-thaw stabilizer additive composition comprising (a) from 20 wt % to 80 wt %, based on the total weight of the freeze-thaw stabilizer additive composition, of at least one anti-freezing compound selected from the group consisting of glycerin alkoxylate, pentaerythritol alkoxylate, sorbitol alkoxylate, and mixtures thereof; and (b) from 20 wt % to 80 wt %, based on the total weight of the freeze-thaw stabilizer additive composition, of at least one emulsifier, wherein the at least one emulsifier comprises a C12 to C14 primary or secondary alkoxylate, castor oil ethoxylate, ethylene oxide/propylene oxide copolymer, butylene oxide, or a mixture thereof; wherein the freeze-thaw stabilizer additive composition provides a paint formulation having a stability such that the change in viscosity of the paint formulation is from 0 percent to less than 10 percent after the formulation is subjected to the Freeze-Thaw Stability Test described in GB/T-9168-2008, when the viscosity of the paint formulation is measured at 23° C. using a Stormer Viscometer before and after the Freeze-Thaw Stability Test.