公开(公告)号：US11359157B2

公开(公告)日：2022-06-14

申请号：US16972237

申请日：2019-06-27

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Zhe Jia ,  John B. Cuthbert ,  David L. Malotky ,  Stacey A. Saba ,  Bruce D. Hook ,  Nathan Wilmot ,  Daniel L. Dermody

IPC: C10M115/08 ,  C08G18/09 ,  C08G18/28 ,  C08J3/09 ,  C10M169/02 ,  C10M177/00 ,  C10M119/24 ,  C10N70/00 ,  C08G18/76 ,  C10N20/06 ,  C10N50/10 ,  C10N30/00

Abstract: A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocyanate in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

公开(公告)号：US20210395540A1

公开(公告)日：2021-12-23

申请号：US17295659

申请日：2019-12-17

Applicant: Dow Global Technologies LLC ,  Performance Materials NA, Inc.

Inventor： Robert S. Moglia ,  Stacey A. Saba ,  Hari Katepalli ,  Matthew J. Crimmins ,  Jessica Ye Huang ,  James Richard De Garavilla ,  Richard Tien Hua Chou ,  Barry Alan Morris ,  Daniel L. Dermody ,  Kyle Anderson

IPC: C09D7/45 ,  C09D123/08 ,  C09D123/12 ,  C09D7/65

Abstract: An aqueous ionomer dispersion, and method of manufacturing thereof, comprising an ionomer composition and water, wherein the ionomer composition comprises: a) at least 20 wt. %, based on the total weight percent of the ionomer composition, of an ionomer; and b) up to 80 wt. %, based on the total weight percent of the ionomer composition, of a polyolefin.

公开(公告)号：US20210009747A1

公开(公告)日：2021-01-14

申请号：US16980018

申请日：2019-03-08

Applicant: Dow Global Technologies LLC

Inventor： Kaoru Aou ,  Qinghao Meng ,  Daniel L. Dermody ,  Hari Katepalli ,  William J. Harris ,  An N. Kaga ,  Kathleen Barnes ,  Li Pi Shan

IPC: C08G18/48 ,  C08K3/04 ,  C08G18/76 ,  C08K3/36 ,  C08K9/06 ,  C08G18/64 ,  C08L83/04 ,  C08L93/04 ,  C08G18/18 ,  C08G18/24 ,  C08G18/20

Abstract: Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are formed into an emulsion that includes a polyether containing oxyethylene groups, a nonionic surfactant and certain fumed silica, carbon black or talc particles.

公开(公告)号：US10100168B2

公开(公告)日：2018-10-16

申请号：US15108921

申请日：2015-01-09

Applicant: Dow Global Technologies LLC

Inventor： Roland Bayer ,  Scott T. Matteucci ,  Aleksander J. Pyzik ,  Sharon Allen ,  Mary Anne Leugers ,  Daniel L. Dermody ,  Robert S. Moglia

IPC: B29C67/00 ,  B33Y40/00 ,  B33Y70/00 ,  C08J11/08 ,  B29C64/40 ,  B29C64/135

Abstract: The inventions is directed to a method for recovering support materials used in an additive manufacturing process. The method comprises exposing a precursor additive manufactured article comprised of a water soluble support polymer and an insoluble material to water. The water soluble support polymer is dissolved in the water. The remaining article is then removed from the water. The dissolved water soluble polymer is precipitated from the water. The precipitated polymer is separated from the water and any remaining water removed to recover the water soluble support polymer. The recovered water soluble support polymer may then be re-used to make further additive manufactured articles.

公开(公告)号：US20210299948A1

公开(公告)日：2021-09-30

申请号：US17264737

申请日：2019-07-12

Applicant: Dow Global Technologies LLC

Inventor： Craig F. Gorin ,  Sanjib Biswas ,  Sharon Allen ,  Scott T. Matteucci ,  Daniel L. Dermody ,  Harpreet Singh ,  Aleksander J. Pyzik

IPC: B29C64/118 ,  B33Y70/00 ,  B33Y10/00 ,  B29C48/50

Abstract: A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.

公开(公告)号：US11000972B2

公开(公告)日：2021-05-11

申请号：US16475838

申请日：2018-10-22

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Craig F. Gorin ,  Sanjib Biswas ,  Manesh Nadupparambil Sekharan ,  Thomas L. Tomczak ,  Robert S. Moglia ,  Daniel L. Dermody ,  Harpreet Singh ,  Bryan L. McCulloch

IPC: C08L23/04 ,  C08L23/06 ,  C08L23/10 ,  C08L33/00 ,  C08L53/00 ,  C08L71/02 ,  B29B7/94 ,  B01J2/20 ,  B29B7/48 ,  B29B9/10 ,  C08J3/05 ,  C08J3/16 ,  C08J3/205 ,  C08L23/12

Abstract: The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt % to 90 wt % solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 μm to 300 μm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

公开(公告)号：US20200339763A1

公开(公告)日：2020-10-29

申请号：US16758245

申请日：2018-10-22

Applicant: Dow Global Technologies LLC

Inventor： Craig F. Gorin ,  Sanjib Biswas ,  Yi Fan ,  Thomas L. Tomczak ,  Daniel L. Dermody ,  Harpreet Singh

IPC: C08J3/12 ,  C08L23/08 ,  B29B9/12 ,  B29B9/16

Abstract: The present disclosure provides a process including providing a polyolefin aqueous dispersion having (50) to (90) wt % solids content of dispersion, the polyolefin aqueous dispersion containing solid particles containing a polyolefin including an ethylene-based polymer having a melting temperature from greater than (115)° C. to (140)° C., polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding diluting water to form a diluted polyolefin aqueous dispersion having (5) to less than (50) wt % solids content; collecting the solid particles; washing the solid particles with a washing agent to remove the excess acrylic dispersant; and removing the washing agent to form a powder having a mean volume average particle size from (10) to (300) μm, a sphericity from (0.92) to (1.0), a particle size distribution from (1) to less than (2), a particle density from (98)% to (100)%, and a flow rate in a large funnel from (1) to (5) seconds.

公开(公告)号：US20190329452A1

公开(公告)日：2019-10-31

申请号：US16505025

申请日：2019-07-08

Applicant: Dow Global Technologies LLC

Inventor： Aleksander J Pyzik ,  Scott T. Matteucci ,  Gary L. Jialanella ,  Daniel L. Dermody ,  Mary Anne Leugers

IPC: B29B7/90 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y70/00 ,  B29C64/106

Abstract: An additive elastomeric manufactured part having an elongation at break of at least 50% may be made by a method comprising the following. A material comprising a prepolymer and filler is first dispensed through a nozzle to form an extrudate deposited on a base. The base, nozzle or combination thereof is moved while dispensing the material so that there is horizontal displacement between the base and nozzle in a predetermined pattern to form an initial layer of the material on the base. Subsequent layers are then formed on the initial layer by repeating the dispensing and movement on top of the initial layer and layers that follow.

公开(公告)号：US20190248065A1

公开(公告)日：2019-08-15

申请号：US16312370

申请日：2017-06-26

Applicant: Dow Global Technologies LLC

Inventor： Craig F. Gorin ,  Aleksander J. Pyzik ,  Sanjay C. Solanki ,  Sharon Allen ,  Daniel P. Sophiea ,  NIranjan Malvadkar ,  Daniel L. Dermody

IPC: B29C64/118 ,  C08G18/12

CPC classification number: B29C64/118 ,  B29C64/106 ,  B29C2945/76892 ,  B29K2075/00 ,  B29K2101/10 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08G18/12

Abstract: An additive manufactured article is comprised of at least two adhered layers of extrudates (120) comprised of a thermoset material having therein a phase change material, wherein the phase change material undergoes a phase change at a temperature less than where the thermoset material decomposes. The article may be made by dispensing a mixture comprised of an organic reactive material and phase change material forming extrudates that are 3D printed into an article having multiple layers of extrudates bound together and then allowing the organic reactive material to react forming a thermoset material having therein the phase change material to form the additive manufactured article. The shape of the article may be changed by heating to a temperature above the temperature where the phase change material undergoes a phase change while applying a force and then cooling below the phase change temperature. Likewise, the original shape may be returned by merely heating above the phase change temperature and then cooling in the absence of a force being applied.

公开(公告)号：US09303131B2

公开(公告)日：2016-04-05

申请号：US14368436

申请日：2013-02-11

Applicant: Dow Global Technologies LLC

Inventor： Manesh N. Sekharan ,  Michael E. Hus ,  David H. Bank ,  Daniel L. Dermody ,  David L. Malotky ,  Peter Cate ,  Scott T. Burr ,  Timothy J. Young

IPC: C08K3/04 ,  C08J5/04 ,  C08J5/24 ,  C08L63/00

CPC classification number: C08J5/042 ,  C08J5/04 ,  C08J5/041 ,  C08J5/043 ,  C08J5/044 ,  C08J5/24 ,  C08J2363/00 ,  C08J2367/02 ,  C08L63/00

Abstract: The invention is directed at new process and systems for preparing composite materials that include a polymer phase and a fiber phase.

Abstract translation: 本发明涉及用于制备包括聚合物相和纤维相的复合材料的新工艺和系统。