公开(公告)号：US11898015B2

公开(公告)日：2024-02-13

申请号：US17256995

申请日：2019-06-28

Applicant: Dow Global Technologies LLC

Inventor： Shrikant Dhodapkar ,  Remi A. Trottier ,  George W. Haun, Jr. ,  Harold W. Boone ,  Intan M. Hamdan ,  Michael D. Turner

IPC: C08J3/12

CPC classification number: C08J3/126 ,  C08J3/124 ,  C08J3/128 ,  C08J2323/16 ,  C08J2383/07

Abstract: A process to form coated polymer particles comprising polymer particles formed from a polymer composition comprising an olefin-based polymer, and a coating formed from a coating composition comprising an aqueous metal acid dispersion and an aqueous polysiloxane emulsion, said process comprising the following: mixing together the aqueous metal acid dispersion and the aqueous polysiloxane emulsion to form a dispersion/emulsion mixture; applying the dispersion/emulsion mixture to a portion of the surfaces of the polymer particles to form wet-coated polymer particles; drying the wet-coated polymer particles to form the coated polymer particles. The aqueous metal acid dispersion and the aqueous polysiloxane emulsion may also be applied, individually, in separate steps.

公开(公告)号：US20210253757A1

公开(公告)日：2021-08-19

申请号：US16973626

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Timothy W. Gambel ,  Curvel Hypolite ,  Daniel S. Rynearson ,  Michael J. Zogg, Jr. ,  Kyle E. Hart ,  Michael D. Turner ,  Jorge Rubalcaba ,  Pradeep Jain ,  Mehmet Demirors

IPC: C08F210/16 ,  C08F2/01 ,  B01J19/18 ,  B01J19/00 ,  B01J8/00 ,  B01J8/18 ,  C08F2/06 ,  C08F4/64

Abstract: A method of producing bimodal ethylene-based polymer includes reacting ethylene monomer and C3-C12 α-olefin comonomer in the presence of a first catalyst in an agitated reactor to produce a first polymer fraction, and outputting effluent from the agitated reactor. A second catalyst is added to the effluent downstream of the agitated reactor and upstream from a non-agitated reactor, the second catalyst facilitates production of a second polymer fraction having a density and melt index (I2) different from the first polymer fraction. The second catalyst and effluent are mixed in at least one mixer. The second catalyst, second polymer fraction, and the first polymer fraction are passed to the non-agitated reactor; and additional ethylene monomer, additional C3-C12 α-olefin comonomer, and solvent are passed to the non-agitated reactor to produce more second polymer fraction and thereby the bimodal ethylene-based polymer.

公开(公告)号：US10683398B2

公开(公告)日：2020-06-16

申请号：US15752315

申请日：2016-09-16

Applicant: Dow Global Technologies LLC

Inventor： Shrikant Dhodapkar ,  Remi A. Trottier ,  Robert Bellair ,  Konanur Manjunath ,  Pradeep Jain ,  Michael D. Turner

IPC: C08J3/12 ,  C08K9/08 ,  C08K3/34 ,  C08K3/26 ,  C08K5/5415 ,  B29B9/16 ,  B29B9/12

Abstract: A composition is provided that comprises at least the following: polymer particles comprising a coating on at least a portion of the total surface of the polymer particles, and wherein the coating is formed from a powder composition comprising at least one inorganic powder, and at least one organic powder selected from a metal stearate and/or a polymer powder, and wherein the weight ratio of the total amount of the inorganic powder to the total amount of the organic powder is from 3.0 to 50.0.

公开(公告)号：US09834712B2

公开(公告)日：2017-12-05

申请号：US14432222

申请日：2013-09-30

Applicant: Dow Global Technologies LLC

Inventor： Mridula Kapur ,  Mehmet Demirors ,  Jain Pradeep ,  Joshua Gaubert ,  Douglas S. Ginger ,  Mustafa Bilgen ,  Gagan Saini ,  Michael D. Turner

IPC: C08L23/08 ,  C08L23/04 ,  B32B27/00 ,  B23B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B65D85/00 ,  C08F210/16 ,  C08J5/18 ,  C08J5/00 ,  C09K3/10 ,  B32B27/08 ,  C08F4/6592

CPC classification number: C09K3/10 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B2250/24 ,  B32B2439/70 ,  B65D85/70 ,  C08F4/6592 ,  C08F210/16 ,  C08F2410/04 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/025 ,  C09K2200/062 ,  Y10T428/31757 ,  Y10T428/31797 ,  Y10T428/31913 ,  C08F4/65904 ,  C08F4/64144 ,  C08F4/64193 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/19 ,  C08F2500/26

Abstract: The instant invention provides a polyolefin composition suitable for sealant applications, sealant compositions, method of producing the same, and films and multilayer structures made therefrom. The polyolefin composition suitable for sealant applications according to the present invention comprises: an ethylene/α-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in the range of from 40 to 110, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range of from 1.01 to 2.0; a density in the range of from 0.908 to 0.922 g/cm3, a melt index (I2 at 190° C./2.16 kg) in the range of from 0.5 to 5.0 g/10 minutes, a molecular weight distribution (defined as the weight average molecular weight divided by the number average molecular weight, Mw/Mn) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second, determined at 190° C., in the range of from 5 to 50.