公开(公告)号：US11267925B2

公开(公告)日：2022-03-08

申请号：US16626736

申请日：2017-06-30

Applicant: Dow Global Technologies LLC

Inventor： Jing Ji ,  Felipe A. Donate ,  Xin Jiang ,  Cheng Shen ,  Kazuyuki Hasegawa ,  Jacob Crosthwaite ,  Rebecca J. Wachowicz

IPC: C08G18/08 ,  C08G18/12 ,  C09D7/20 ,  C08G18/24 ,  C08G18/34 ,  C09D175/04

Abstract: A prepolymer comprising acid functionality is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, (iii) a polyol without an acid group, and (iv) a metal salt catalyst, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a dialkyl amide, and (B) optionally, an aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions, and certain of the solvent blends consisting essentially of a dialkyl amide and an optional aprotic glycol ether are azeotropic or pseudo-azeotropic.

公开(公告)号：US20210380823A1

公开(公告)日：2021-12-09

申请号：US17285170

申请日：2018-10-16

Applicant: Dow Global Technologies LLC

Inventor： Cheng Shen ,  Yan Li ,  Jing Ji

IPC: C09D7/65 ,  C08L71/02

Abstract: An aqueous coating compositions including a coalescent represented by Formula I: R1—O—(A)n—R2, where R1 is hydrogen, a C1-C12 linear aliphatic, or a C1-C12 branchedaliphatic, A is an alkylene oxide, R2 is a hydrogen group, a C1-C4 linear aliphatic or branched aliphatic group, a C1-C4 linear or branched carbonyl group, or a benzyl group, and n has an average value from 3 to 25.

公开(公告)号：US20210332259A1

公开(公告)日：2021-10-28

申请号：US17270698

申请日：2018-10-16

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Yan Li ,  Junyu Chen ,  Cheng Shen ,  James C. Bohling ,  Zhi Juan Gong ,  Tao Wang

IPC: C09D133/08 ,  C08F220/14 ,  C08L43/02 ,  C08F2/22 ,  C08L71/02 ,  C09D133/12 ,  C08F220/18

Abstract: An aqueous dispersion of polymeric particles comprising an emulsion polymer and a polyalkylene oxide with a weight average molecular weight in the range of 450 to 1,500 g/mole, and an aqueous coating composition with low VOCs comprising the aqueous dispersion and providing coatings made therefrom with improved water whitening resistance and hardness.

公开(公告)号：US20210214572A1

公开(公告)日：2021-07-15

申请号：US16967447

申请日：2019-03-11

Applicant: Dow Global Technologies LLC

Inventor： Cheng Shen ,  Jing Ji ,  Qi Jiang

IPC: C09D133/08 ,  C09D5/02 ,  C09D7/65

Abstract: Embodiments of the present invention relate to aqueous coating compositions and to methods for improving the freeze/thaw stability of aqueous coating compositions. In one aspect, an aqueous coating composition comprises an aqueous polymeric dispersion and a compound according to Formula (1) as described herein.

公开(公告)号：US10113138B2

公开(公告)日：2018-10-30

申请号：US15102551

申请日：2013-12-11

Applicant: Dow Global Technologies LLC

Inventor： Cheng Shen ,  Jing Ji ,  Jianhai Mu ,  Xiaohua Wang

IPC: C11D1/83 ,  C11D1/722 ,  C11D1/29 ,  C11D3/04 ,  C11D3/39 ,  C11D11/00 ,  B01F17/00

Abstract: A process for scouring textile materials is provided. The process comprising contacting the textile material with scouring textile materials, comprising contacting the textile materials with a composition comprising an alkyl alkoxylate sulfate of formula I, a nonionic alkyl alkoxylate of formula II, and water.