公开(公告)号：US11198791B2

公开(公告)日：2021-12-14

申请号：US15382908

申请日：2016-12-19

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Kimy Yeung ,  Antony K. Van Dyk ,  Jonathan DeRocher ,  Steven Arturo ,  John J. Rabasco

IPC: C09D175/08 ,  C09D7/65 ,  C08G18/22 ,  C08G18/28 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/73 ,  C08G18/75 ,  C08G18/79 ,  C09D5/02

Abstract: A hydrophilic polyurethane comprising polymerized units of: (a) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (b) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and wherein a product of weight fraction of polymerized ethylene oxide units and polyethylene oxide mean molecular weight is from 4,200 to 16,000.

公开(公告)号：US20210108089A1

公开(公告)日：2021-04-15

申请号：US16497475

申请日：2018-02-26

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： James K. Bardman ,  Jonathan DeRocher ,  Andrew Hejl ,  Anthony K. VanDyk ,  Lin Wang ,  Kimy Yeung

IPC: C09D5/02 ,  C08L33/08 ,  C09D151/00 ,  C09D133/08 ,  C09D7/40 ,  C09D7/65 ,  C09D7/43 ,  C08J3/21 ,  C08J3/00

Abstract: The present invention relates to a process comprising the step of contacting an aqueous dispersion of swelled polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L. The swelled polymer particles arise from neutralization of alkali swellable polymer particles having a high acid core content and a low Tg shell. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.

公开(公告)号：US10968342B2

公开(公告)日：2021-04-06

申请号：US16511069

申请日：2019-07-15

Applicant: Rohm and Haas Company

Inventor： Jonathan DeRocher ,  Andrew Hejl ,  Jessica Levin ,  John J. Rabasco ,  Antony K. Van Dyk ,  Kimy Yeung

IPC: C08L33/12 ,  C08F212/08 ,  C08F285/00 ,  C09D7/65 ,  C09D5/14

Abstract: The present invention relates to a process for preparing an aqueous dispersion of neutralized multistage polymer particles comprising the steps of contacting under emulsion polymerization conditions a) an aqueous dispersion of first polymer particles with b) first monomers to form an aqueous dispersion of 2-stage polymer particles; then contacting under emulsion polymerization conditions the aqueous dispersion of 2-stage polymer particles with second monomers comprising to form an unneutralized aqueous dispersion of 3-stage polymer particles; then neutralizing the unneutralized aqueous dispersion of 3-stage polymer particles with a base to form an aqueous dispersion of neutralized 3-stage polymer particles, wherein the first and second monomers form a shell having a calculated Tg of less than 50° C. The process of the present invention is useful in preparing a composition that is useful as an open time additive in coatings formulations.

公开(公告)号：US10669444B2

公开(公告)日：2020-06-02

申请号：US16078866

申请日：2017-03-06

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： David J. Brennan ,  Gregoire Cardoen ,  Jonathan DeRocher ,  Antony K. Van Dyk ,  Kimy Yeung

IPC: C09D121/02 ,  C08B31/14 ,  C09D103/02 ,  C09D103/08 ,  C08G65/22 ,  C08G65/26 ,  C08B30/18 ,  C09D7/65

Abstract: The present invention relates to a coating composition which is a stable aqueous dispersion of polymer particles and a phenyl glycidyl ether adduct of maltodextrin. The composition of the present invention is useful for improving open time in coatings formulations.

公开(公告)号：US10654964B2

公开(公告)日：2020-05-19

申请号：US16309291

申请日：2017-06-27

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： David J. Brennan ,  Gregoire Cardoen ,  Jonathan DeRocher ,  John J. Rabasco ,  Antony K. Van Dyk ,  Kimy Yeung

IPC: C08G18/28 ,  C08G18/48 ,  C08G18/64 ,  C09D175/04 ,  C09D5/02 ,  C08G18/66 ,  C08G18/22 ,  C08G18/75 ,  C08G18/73 ,  C08G18/79 ,  C08G18/32 ,  C09D7/45

Abstract: A composition comprising: (a) a hydrophilic polyurethane comprising polymerized units of: (i) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (ii) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt % of said hydrophilic polyurethane; and at least one of: (b) a saccharide having at least 5 hydroxyl groups and Mw from 300 to 4,000; (c) a dispersant polymer having Mw from 700 to 50,000 and from 10 to 55 wt % polymerized residues of C3-C6 carboxylic acid monomer and (d) a surfactant having HLB>11 and 12 to 100 polymerized units of ethylene oxide.

公开(公告)号：US20180171155A1

公开(公告)日：2018-06-21

申请号：US15836097

申请日：2017-12-08

Applicant: Rohm and Haas Company

Inventor： Jonathan DeRocher ,  Kevin J. Henderson ,  Antony K. Van Dyk ,  Jingchun Yang

IPC: C09D5/02 ,  C09D7/61 ,  C09D133/08 ,  C09D143/02 ,  C09D181/08 ,  C08J3/20 ,  C08K3/22 ,  C08K9/12

CPC classification number: C09D5/027 ,  C08J3/203 ,  C08K3/22 ,  C08K9/12 ,  C08K2003/2241 ,  C09D7/00 ,  C09D7/61 ,  C09D133/08 ,  C09D143/02 ,  C09D181/08

Abstract: The present invention relates to a composition comprising: a) an aqueous dispersion of i) polymer particles functionalized with structural units of a phosphorus acid monomer; and ii) TiO2 particles; b) a sulfur acid functionalized dispersant; and c) a carboxylic acid functionalized dispersant. The composition of the present invention addresses a need in the art by providing a way to tune TiO2-binder composite formation efficiency with relative ease.

公开(公告)号：US09963615B2

公开(公告)日：2018-05-08

申请号：US15370119

申请日：2016-12-06

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Jonathan DeRocher ,  Kevin J. Henderson ,  Lidaris San Miguel Rivera ,  Antony K. Van Dyk

IPC: C09D171/02 ,  C09D17/00

CPC classification number: C09D171/02 ,  C08F220/58 ,  C08K3/22 ,  C08K2003/2241 ,  C08L33/14 ,  C09D17/001 ,  C09D17/002 ,  C09D17/008 ,  C09D133/14 ,  C08F2220/585 ,  C08F220/20 ,  C08F220/06

Abstract: The present invention relates to a stable aqueous pigment dispersion including: an aqueous medium, pigment particles, and from 0.1% to 15%, by weight based on the weight of pigment, of a certain first water-soluble polymer; and 2) a certain second water-soluble polymer; wherein the dispersant comprises a proportion of the first polymer to the second polymer of from 0.1:1 to 10:1 on a solids basis, and the first polymer and the second polymer are miscible in those proportions; and wherein the dispersant is substantially free of structural units of phosphorus acid monomers and their salts. The invention also relates to a method for forming the stable aqueous dispersion and a dry coating formed from the aqueous dispersion. The stable aqueous dispersion is useful, inter alia, for forming certain composite particles.