公开(公告)号：US20230109972A1

公开(公告)日：2023-04-13

申请号：US17760370

申请日：2021-03-01

Applicant: Dow Global Technologies LLC

Inventor： Felipe A. Donate ,  Rebecca J. Wachowicz

IPC: C09K15/08 ,  C11B5/00 ,  C07C43/04

Abstract: The present invention relates to solvent compositions and processes for inhibiting the generation of peroxide in glycol ether solvents. In one aspect, a solvent composition comprises at least one glycol ether, at least one antioxidant containing a hindered phenol, wherein the concentration of the antioxidant in the solvent composition is less than or equal to 1,000 ppm by weight, and a peroxide, wherein the concentration of the peroxide in the solvent composition is less than 20 ppm, and wherein the APHA color index of the solvent composition is less than 25.

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：US20220033676A1

公开(公告)日：2022-02-03

申请号：US17290995

申请日：2019-11-19

Applicant: Dow Global Technologies LLC

Inventor： Felipe A. Donate ,  Rebecca J. Wachowicz ,  Ellen D. Hock ,  Jason L. Trumble ,  David S. Laitar ,  Keosha L. Cade

IPC: C09D175/08 ,  C08G18/12 ,  C08G18/48 ,  C08G18/34 ,  C08G18/75 ,  C08G18/65 ,  C08G18/24 ,  C08G18/08

Abstract: A prepolymer comprising an acid group is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, and (iii) a polyol without an acid group, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a first component consisting essentially of at least one glycol ether ketone, and (B) optionally, a second component consisting of at least one aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions.

公开(公告)号：US20210222015A1

公开(公告)日：2021-07-22

申请号：US16081672

申请日：2017-03-21

Applicant: Dow Global Technologies LLC

Inventor： Claribel Acevedo Velez ,  Sudhakar Balijepalli ,  Rebecca J. Wachowicz

IPC: C09D7/63 ,  C09D7/65 ,  C09D133/08 ,  C08L71/00 ,  C08K5/06

Abstract: Embodiments of the present invention relate to compositions, aqueous coating compositions, and methods for improving the freeze/thaw stability of aqueous coating compositions. In one aspect, a method for improving the freeze/thaw stability of an aqueous coating composition comprising an aqueous polymeric dispersion, the method comprising adding the following compound to the aqueous coating composition wherein n=3 to 10.

公开(公告)号：US09908839B2

公开(公告)日：2018-03-06

申请号：US15318009

申请日：2015-06-18

Applicant: Dow Global Technologies LLC

Inventor： George J. Frycek ,  Andrei S. Merenov ,  Felipe A. Donate ,  Edward D. Daugs ,  Julie L. Maurer ,  Rebecca J. Wachowicz ,  Jason L. Trumble

IPC: C07C69/66 ,  C07C67/08 ,  C09D7/12

CPC classification number: C07C67/08 ,  C09D7/63 ,  C07C69/44

Abstract: A process comprising reacting a mono- or di-carboxylic acid and/or acid anhydride with a glycol ether in the presence of phosphoric acid to produce a glycol ether ester product having low color and low VOC content.

公开(公告)号：US11976211B2

公开(公告)日：2024-05-07

申请号：US17290995

申请日：2019-11-19

Applicant: Dow Global Technologies LLC

Inventor： Felipe A. Donate ,  Rebecca J. Wachowicz ,  Ellen D. Hock ,  Jason L. Trumble ,  David S. Laitar ,  Keosha L. Cade

IPC: C09D175/08 ,  C08G18/08 ,  C08G18/12 ,  C08G18/24 ,  C08G18/34 ,  C08G18/48 ,  C08G18/65 ,  C08G18/75

CPC classification number: C09D175/08 ,  C08G18/0852 ,  C08G18/12 ,  C08G18/246 ,  C08G18/348 ,  C08G18/4825 ,  C08G18/6541 ,  C08G18/758

Abstract: A prepolymer comprising an acid group is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, and (iii) a polyol without an acid group, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a first component consisting essentially of at least one glycol ether ketone, and (B) optionally, a second component consisting of at least one aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions.

公开(公告)号：US11542398B2

公开(公告)日：2023-01-03

申请号：US16744282

申请日：2020-01-16

Applicant: Dow Global Technologies LLC

Inventor： Felipe A. Donate ,  Rebecca J. Wachowicz

IPC: C09D7/20 ,  C09D163/00 ,  C09D133/00 ,  C08K5/101 ,  C08K5/06 ,  C08K5/05 ,  C08K5/5419

Abstract: The present invention relates to azeotropic blends and pseudoazeotropic blends and to coating compositions including such blends. In one aspect, an azeotropic blend or a pseudoazeotropic blend consists essentially of hexamethyldisiloxane and a second component selected from the following: isobutanol, n-propyl acetate, n-butanol, and 1-methoxy-2-propanol.

公开(公告)号：US20170129843A1

公开(公告)日：2017-05-11

申请号：US15318032

申请日：2015-06-18

Applicant: Dow Global Technologies LLC

Inventor： George J. Frycek ,  Felipe A. Donate ,  Edward D. Daugs ,  Rebecca J. Wachowicz ,  Jason L. Trumble

IPC: C07C67/08 ,  C07C67/54

CPC classification number: C07C67/08 ,  C07C67/54 ,  C07C69/78

Abstract: A process comprising reacting a benzoic acid with a glycol ether in the presence of phosphoric acid to produce a glycol ether ester product having low color, low odor, and low VOC content.

公开(公告)号：US11421117B2

公开(公告)日：2022-08-23

申请号：US16744604

申请日：2020-01-16

Applicant: Dow Global Technologies LLC

Inventor： Felipe A. Donate ,  Rebecca J. Wachowicz

IPC: C09D7/20 ,  C09D133/00 ,  C09D163/00 ,  C09D133/02 ,  C09D133/08

Abstract: The present invention relates to azeotropic blends and pseudoazeotropic blends and to coating compositions including such blends. In one aspect, an azeotropic blend or a pseudoazeotropic blend consists essentially of octamethyltrisiloxane and a second component selected from the following: amyl acetate, 2-propoxyethanol, 1-methoxy-2-propylacetate, and 1-propoxy-2-propanol.

公开(公告)号：US20200231825A1

公开(公告)日：2020-07-23

申请号：US16744604

申请日：2020-01-16

Applicant: Dow Global Technologies LLC

Inventor： Felipe Donate ,  Rebecca J. Wachowicz

IPC: C09D7/20 ,  C09D133/00 ,  C09D163/00

Abstract: The present invention relates to azeotropic blends and pseudoazeotropic blends and to coating compositions including such blends. In one aspect, an azeotropic blend or a pseudoazeotropic blend consists essentially of octamethyltrisiloxane and a second component selected from the following: amyl acetate, 2-propoxyethanol, 1-methoxy-2-propylacetate, and 1-propoxy-2-propanol.