公开(公告)号：US20200299527A1

公开(公告)日：2020-09-24

申请号：US16607257

申请日：2018-05-02

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： James K. Bardman ,  Jonathan DeRocher ,  Andrew Hejl ,  Antony K. Van Dyk ,  Lin Wang ,  Kimy Yeung

IPC: C09D7/65 ,  C09D7/40 ,  C08F220/06 ,  C08F220/18 ,  C08F220/14 ,  C08F212/08 ,  C08F2/22 ,  C08L25/14 ,  C08K3/22

Abstract: The present invention relates to a process for preparing a coatings composition with an open time additive comprising the steps of a) contacting an aqueous dispersion of alkali swellable polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L; and b) neutralizing the alkali swellable particles with a non-volatile base after or upon contact with the rheology modifier and the binder to form swelled multi-staged polymer particles; wherein the alkali swellable polymer particles comprise a shell having a Tg of not greater than 25° C. and an acid functionalized core; and wherein the core-to-shell ratio is in the range of from 1:3.2 to 1:10. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.In another aspect the present invention relates to the preparation of the coatings composition with an open time additive comprising the steps of a) contacting the open time additive with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L, then b) neutralizing the open time additive to form swelled multi-staged polymer particles, wherein the coatings composition with the open time additive exhibits less than a 50% increase in viscosity than the coating composition without the open time additive.

公开(公告)号：US20180320007A1

公开(公告)日：2018-11-08

申请号：US15968939

申请日：2018-05-02

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： James Keith Bardman ,  Jonathan DeRocher ,  Andrew Hejl ,  Antony K. Van Dyk ,  Lin Wang ,  Kimy Yeung

IPC: C09D7/40 ,  C09D133/06 ,  C09D7/65

CPC classification number: C09D7/70 ,  C08F2/26 ,  C08F265/02 ,  C08F265/06 ,  C08L2201/50 ,  C08L2201/52 ,  C08L2207/53 ,  C09D7/65 ,  C09D7/68 ,  C09D133/06 ,  C09D133/10 ,  C09D133/12 ,  C08F2220/1825 ,  C08F220/06 ,  C08F220/14 ,  C08L51/003

Abstract: The present invention relates to a process for preparing a coatings composition with an open time additive comprising the steps of a) contacting an aqueous dispersion of alkali swellable polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L; and b) neutralizing the alkali swellable particles with a non-volatile base after or upon contact with the rheology modifier and the binder to form swelled multi-staged polymer particles; wherein the alkali swellable polymer particles comprise a shell having a Tg of not greater than 25° C. and an acid functionalized core; and wherein the core-to-shell ratio is in the range of from 1:3.2 to 1:10. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.In another aspect the present invention relates to the preparation of the coatings composition with an open time additive comprising the steps of a) contacting the open time additive with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L, then b) neutralizing the open time additive to form swelled multi-staged polymer particles, wherein the coatings composition with the open time additive exhibits less than a 50% increase in viscosity than the coating composition without the open time additive.

公开(公告)号：US11155722B2

公开(公告)日：2021-10-26

申请号：US16607257

申请日：2018-05-02

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： James K. Bardman ,  Jonathan DeRocher ,  Andrew Hejl ,  Antony K. Van Dyk ,  Lin Wang ,  Kimy Yeung

IPC: C09D7/65 ,  C09D7/40 ,  C09D133/06 ,  C08F265/02 ,  C08F265/06 ,  C09D133/10 ,  C09D133/12 ,  C08F2/26 ,  C08F220/18 ,  C08F2/22 ,  C08F212/08 ,  C08F220/06 ,  C08F220/14 ,  C08K3/22 ,  C08L25/14

Abstract: The present invention relates to a process for preparing a coatings composition with an open time additive comprising the steps of a) contacting an aqueous dispersion of alkali swellable polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L; and b) neutralizing the alkali swellable particles with a non-volatile base after or upon contact with the rheology modifier and the binder to form swelled multi-staged polymer particles; wherein the alkali swellable polymer particles comprise a shell having a Tg of not greater than 25° C. and an acid functionalized core; and wherein the core-to-shell ratio is in the range of from 1:3.2 to 1:10. 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：US11124656B2

公开(公告)日：2021-09-21

申请号：US16511061

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: C09D4/06 ,  C09D133/10 ,  C09D7/65

Abstract: The present invention relates to a composition comprising an aqueous dispersion of multistage polymer particles with a first phase comprising structural units of a carboxylic acid monomer and a nonionic ethylenically unsaturated monomer; and a second phase with a calculated Tg of less than 50° C. and comprising a mixture of polymers which together comprise structural units of styrene or methyl methacrylate or both; structural units of one or of n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate; and structural units of a carboxylic acid monomer. The composition is useful as an open time additive in coatings formulations.

公开(公告)号：US20170183535A1

公开(公告)日：2017-06-29

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 ,  C08G18/48 ,  C08G18/22 ,  C08G18/79

CPC classification number: C09D175/08 ,  C08G18/227 ,  C08G18/283 ,  C08G18/3228 ,  C08G18/4812 ,  C08G18/4833 ,  C08G18/6685 ,  C08G18/73 ,  C08G18/758 ,  C08G18/791 ,  C08G18/792 ,  C09D5/022 ,  C09D5/024 ,  C09D7/65

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：US11161986B2

公开(公告)日：2021-11-02

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

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：US20200024458A1

公开(公告)日：2020-01-23

申请号：US16511061

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: C09D4/06 ,  C09D133/10 ,  C09D7/65

Abstract: The present invention relates to a composition comprising an aqueous dispersion of multistage polymer particles with a first phase comprising structural units of a carboxylic acid monomer and a nonionic ethylenically unsaturated monomer; and a second phase with a calculated Tg of less than 50° C. and comprising a mixture of polymers which together comprise structural units of styrene or methyl methacrylate or both; structural units of one or of n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate; and structural units of a carboxylic acid monomer. The composition is useful as an open time additive in coatings formulations.

公开(公告)号：US20200024440A1

公开(公告)日：2020-01-23

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 ,  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:1) contacting under emulsion polymerization conditions a) a aqueous dispersion of first polymer particles comprising structural units of a carboxylic acid monomer, and structural units of a nonionic monomer with b) first monomers comprising styrene or methyl methacrylate or a combination thereof, and a carboxylic acid monomer; to form an aqueous dispersion of 2-stage polymer particles; then2) contacting under emulsion polymerization conditions the aqueous dispersion of first multistage polymer particles with second monomers comprising a) methyl methacrylate; b) n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate, or a combination thereof; c) a carboxylic acid monomer; and d) less than 20 weight percent styrene, to form an unneutralized aqueous dispersion of 3-stage polymer particles; then3) 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：US20190202964A1

公开(公告)日：2019-07-04

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

CPC classification number: C08G18/283 ,  C08G18/227 ,  C08G18/3228 ,  C08G18/4812 ,  C08G18/4833 ,  C08G18/6484 ,  C08G18/6685 ,  C08G18/73 ,  C08G18/758 ,  C08G18/792 ,  C09D5/024 ,  C09D7/45 ,  C09D175/04

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：US20190055422A1

公开(公告)日：2019-02-21

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 ,  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.