公开(公告)号：US20230312969A1

公开(公告)日：2023-10-05

申请号：US18016465

申请日：2020-07-31

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Caifeng Wang ,  Jianming Xu ,  Kok Chiew Poh ,  Yuehan Hu ,  Tao Wang ,  Juan F. Callejas ,  Philip R. Harsh ,  James C. Bohling ,  Andrew J. Swartz ,  Partha S. Majumdar ,  Joseph Tanzer

IPC: C09D133/08 ,  C09D7/61 ,  C09D7/65 ,  C09D7/40

CPC classification number: C09D133/08 ,  C09D7/61 ,  C09D7/65 ,  C09D7/67 ,  C09D7/69 ,  C09D7/70 ,  C08K2201/005 ,  C08K2201/011

Abstract: The present invention is a composition comprising an aqueous dispersion of polymer particles, polymeric organic crosslinked microspheres, and colloidal silica particles. The composition is useful in coating compositions for exterior applications to achieve a balance of excellent dirt pickup resistance and durability performance under accelerated testing conditions.

公开(公告)号：US11746236B2

公开(公告)日：2023-09-05

申请号：US17787455

申请日：2021-02-11

Applicant: Dow Global Technologies LLC ,  Dow Silicones Corporation ,  Rohm and Haas Company

Inventor： Erica A. Frankel ,  Andrés E. Becerra ,  Andrew J. Swartz ,  Darren Hansen

IPC: C08L83/04 ,  C08J3/22

CPC classification number: C08L83/04 ,  C08J3/226 ,  C08J2383/04

Abstract: A composition contains the following components: (a) 15 to 49.8 volume-percent of a first polysiloxane that is has a viscosity in a range of 50 centiStokes to 550 Stokes as determined according to ASTM D4283-98; (b) 0.2 to 5 volume-percent of an organoclay; (c) 50-74 volume-percent roundish or crushed thermally conductive fillers including: (i) 5 to 15 volume-percent small thermally conductive fillers having a median particle size in a range of 0.1 to 1.0 micrometers; (ii) 10 to 25 volume-percent medium thermally conductive fillers having a median particle size in a range of 1.1 to 5.0 micrometers; (iii) 25 to 50 volume-percent large thermally conductive fillers having a median particle size in a range of 5.1 to 50 micrometers; and (d) 0 to 5 volume-percent of an alkoxy functional linear polysiloxane different from the first polysiloxane and/or an alkoxy functional linear silane; where volume-percent values are relative to composition volume.

公开(公告)号：US20230167309A1

公开(公告)日：2023-06-01

申请号：US17921182

申请日：2021-04-16

Applicant: Rohm and Haas Company

Inventor： Qing Zhang ,  Andrew J. Swartz ,  Michael W. Leonard

IPC: C09D5/02 ,  C09D7/40 ,  C09D7/65 ,  C09D125/14 ,  C09D7/61 ,  C09D7/45

CPC classification number: C09D5/022 ,  C09D7/70 ,  C09D7/65 ,  C09D125/14 ,  C09D7/68 ,  C09D7/61 ,  C09D7/45

Abstract: The present invention relates to a waterborne composition comprising an aqueous dispersion of first and second multistage polymer particles, wherein each of the first and second polymer particles comprises a water-occluded core and a high Tg polymeric shell wherein the second multistage polymer particles further comprise a polymeric binder layer superposing the shell. The composition of the present invention is useful for reducing the load of TiO2 in paint formulations, while producing coatings with excellent hiding and scrub resistance.

公开(公告)号：US20230032719A1

公开(公告)日：2023-02-02

申请号：US17787455

申请日：2021-02-11

Applicant: Dow Global Technologies LLC ,  Dow Silicones Corporation ,  Rohm and Haas Company

Inventor： Erica A. Frankel ,  Andrés E. Becerra ,  Andrew J. Swartz ,  Darren Hansen

IPC: C08L83/04 ,  C08J3/22

Abstract: A composition contains the following components: (a) 15 to 49.8 volume-percent of a first polysiloxane that is has a viscosity in a range of 50 centiStokes to 550 Stokes as determined according to ASTM D4283-98; (b) 0.2 to 5 volume-percent of an organoclay; (c) 50-74 volume-percent roundish or crushed thermally conductive fillers including: (i) 5 to 15 volume-percent small thermally conductive fillers having a median particle size in a range of 0.1 to 1.0 micrometers; (ii) 10 to 25 volume-percent medium thermally conductive fillers having a median particle size in a range of 1.1 to 5.0 micrometers; (iii) 25 to 50 volume-percent large thermally conductive fillers having a median particle size in a range of 5.1 to 50 micrometers; and (d) 0 to 5 volume-percent of an alkoxy functional linear polysiloxane different from the first polysiloxane and/or an alkoxy functional linear silane; where volume-percent values are relative to composition volume.

公开(公告)号：US20210355340A1

公开(公告)日：2021-11-18

申请号：US17277838

申请日：2019-10-08

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Azize Ala ,  Gary W. Dombrowski ,  Patrick E. Hartnett ,  Ozzie Moore Pressley ,  Andrew J. Swartz ,  Qing Zhang

IPC: C09D133/06 ,  C09D7/65 ,  C09D7/63 ,  C09D5/02

Abstract: The present invention relates to a composition comprising an aqueous dispersion of polymer particles; b) anion exchange resin particles; and c) an aminosilane. The composition achieves a more desirable balance of stain blocking and stain removal properties in pigmented coating formulations over compositions that contain the latex and the aminosilane but no anion exchange resin, or the latex and the ion exchange resin but no aminosilane.