公开(公告)号：US11447597B2

公开(公告)日：2022-09-20

申请号：US16463208

申请日：2017-09-07

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Rajat Duggal ,  Muhammad A. Shafi ,  Luigi Pellacani ,  Harshad M. Shah

IPC: C08G18/76 ,  C08G18/24 ,  C08G18/48 ,  C08G18/67 ,  C09D11/102 ,  C09D175/14 ,  C09J175/14 ,  C08G18/12 ,  C09D175/16 ,  C09J175/16 ,  B29C55/00 ,  C08J3/24

Abstract: In various embodiments, a resin composition includes a urethane (meth)acrylate, a reactive diluent, and a urethane (meth)acrylate toughener. The urethane (meth)acrylate toughener includes at least one additional polyol having a number average molecular weight Mn of greater than 1,000 g/mol. Cured articles made from the resin composition have an average fracture toughness (KIc) value from 1 MPa*m1/2 to 3 MPa*m1/2 when measured in accordance with ASTM D5045. Processes for making the resin composition as well as processes using the resin composition are also provided.

公开(公告)号：US11192974B2

公开(公告)日：2021-12-07

申请号：US16957495

申请日：2018-11-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Huifeng Qian ,  Luigi Pellacani ,  Muhammad A. Shafi

IPC: C08G18/76 ,  C08G18/10 ,  C08G18/32 ,  C08G18/48

Abstract: Controllable-cure urethane acrylate resin compositions are disclosed, comprising (A) a urethane acrylate having free hydroxyalkyl (meth) acrylate prepared from a polyurethane prepolymer having a free terminal isocyanate group and a hydroxyalkyl (meth)acrylate, the urethane acrylate having free hydroxyalkyl (meth) acrylate being the reaction product of capping the polyurethane prepolymer in the presence excess of the hydroxyalkyl (meth)acrylate, (B) a polyisocyanate-based thickening agent, and optionally an additional hydroxyalkyl (meth)acrylate, wherein the polyisocyanate-based thickening agent (B) and the urethane acrylate having free hydroxyalkyl (meth) acrylate (A), and optionally the additional hydroxyalkyl (meth)acrylate, are present at NCO/OH molar ratio of from 0.2 to 10.0. Methods for making controllable-cure urethane acrylate resin compositions are disclosed.

公开(公告)号：US20210147606A1

公开(公告)日：2021-05-20

申请号：US16629645

申请日：2018-08-29

Applicant: Dow Global Technologies LLC

Inventor： Luigi Pellacani ,  Huifeng Qian

IPC: C08G18/00 ,  C09D11/102 ,  C08G18/22 ,  C08G18/48 ,  C08G18/76 ,  C08G59/40 ,  C08G59/72

Abstract: Embodiments of the present disclosure are directed towards directed towards heat curing compositions. The heat curing compositions can include an isocyanate component, wherein the isocyanate component includes an isocyanate-polyol reaction product, an epoxy material, and a Lewis acid-amine complex, wherein the heat curing composition has an isocyanate group to epoxide group ratio from 3:1 to 20:1.

公开(公告)号：US20200291166A1

公开(公告)日：2020-09-17

申请号：US16082204

申请日：2017-03-01

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Huifeng Qian ,  Muhammad A Shafi ,  Luigi Pellacani ,  Harshad M. Shah ,  Dwight Latham ,  Qiuyun Xu ,  William L. Heaner ,  Emanuele Maiocchi

IPC: C08G18/12 ,  C08G18/32 ,  C08G18/66 ,  C08G18/67 ,  C08G18/76 ,  B29C39/00 ,  B29C39/26

Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent selected from the group consisting of i) a hydroxyl alkyl (meth)acrylate monomer where the acrylate group, which is attached to the carbonyl group, is attached to a hydrogen or a methyl group and the carbonyl group is attached to the hydroxyl group thru an R2 alkylene group containing 2 to 18 carbon atoms per molecule.

公开(公告)号：US11124597B2

公开(公告)日：2021-09-21

申请号：US16082210

申请日：2017-02-23

Applicant: Dow Global Technologies LLC

Inventor： Muhammad A. Shafi ,  Huifeng Qian ,  Luigi Pellacani ,  Dwight D. Latham ,  William L. Heaner, IV ,  Qiuyun Xu ,  Harshad M. Shah

IPC: C08G18/67 ,  C08G18/12 ,  C08G18/16 ,  C08G18/24 ,  C08G18/48 ,  C09D175/16 ,  C08G18/76 ,  C09J175/16 ,  B29C55/00 ,  B29K75/00

Abstract: A process for making a curable resin composition comprising the steps of: (1) reacting a) an isocyanate; and b) a polyol mixture with a bimodal distribution of i) a first polyol mixture comprising polyols having an average equivalent weight of from 50 to 400; and ii) a second polyol mixture comprising polyols having an average equivalent weight of from 1000 to 5000 to form a urethane prepolymer; and (2) adding a capping agent to the urethane prepolymer to form the curable resin composition.

公开(公告)号：US20200172655A1

公开(公告)日：2020-06-04

申请号：US16636436

申请日：2018-08-22

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Asjad Shafi ,  Robert Bellair ,  Thomas Willumstad ,  Florin Dan ,  Brenton Drake ,  Luigi Pellacani

IPC: C08G18/67 ,  C08K5/3435

Abstract: In various embodiments, a resin composition includes a urethane (meth)acrylate, and an inhibitor package. The inhibitor package includes at least one nitroxide radical and at least one base. The base is selected from the group consisting of tertiary amine bases, alkoxides, and hydroxides having a pH in water of greater than 8.2. Process for making the resin composition as well as processes using the resin composition are also provided.

公开(公告)号：US11225544B2

公开(公告)日：2022-01-18

申请号：US16082204

申请日：2017-03-01

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Muhammad A. Shafi ,  Luigi Pellacani ,  Harshad M. Shah ,  Dwight D. Latham ,  Qiuyun Xu ,  William L. Heaner, IV ,  Emanuele Maiocchi

IPC: C08G18/12 ,  B29C39/00 ,  B29C39/26 ,  C08G18/32 ,  C08G18/66 ,  C08G18/67 ,  C08G18/76 ,  B29K75/00 ,  B29L31/00

Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent selected from the group consisting of i) a hydroxyl alkyl (meth)acrylate monomer where the acrylate group, which is attached to the carbonyl group, is attached to a hydrogen or a methyl group and the carbonyl group is attached to the hydroxyl group thru an R2 alkylene group containing 2 to 18 carbon atoms per molecule.

公开(公告)号：US20190092896A1

公开(公告)日：2019-03-28

申请号：US16082141

申请日：2017-02-27

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Muhammad A. Shafi ,  Luigi Pellacani

IPC: C08G18/67 ,  C08G18/76 ,  C08G18/32 ,  C08G18/10 ,  C08G18/16

Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate comprising a) urethane (meth)acrylate oligomers with a number average molecular weight in the range of from 400 to 1500; and b) urethane (meth)acrylate oligomers with a number average molecular weight in the range of from 1500 to 10000, present in a weight ratio of from 0.1:1 to 25:1; (2) a reactive diluent; and (3) a free radical-generating catalyst, is disclosed.

公开(公告)号：US20210070922A1

公开(公告)日：2021-03-11

申请号：US16957495

申请日：2018-11-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Huifeng Qian ,  Luigi Pellacani ,  Muhammad A. Shafi

IPC: C08G18/76 ,  C08G18/48 ,  C08G18/32 ,  C08G18/10

Abstract: Controllable-cure urethane acrylate resin compositions are disclosed, comprising (A) a urethane acrylate having free hydroxyalkyl (meth) acrylate prepared from a polyurethane prepolymer having a free terminal isocyanate group and a hydroxyalkyl (meth)acrylate, the urethane acrylate having free hydroxyalkyl (meth) acrylate being the reaction product of capping the polyurethane prepolymer in the presence excess of the hydroxyalkyl (meth)acrylate, (B) a polyisocyanate-based thickening agent, and optionally an additional hydroxyalkyl (meth)acrylate, wherein the polyisocyanate-based thickening agent (B) and the urethane acrylate having free hydroxyalkyl (meth) acrylate (A), and optionally the additional hydroxyalkyl (meth)acrylate, are present at NCO/OH molar ratio of from 0.2 to 10.0. Methods for making controllable-cure urethane acrylate resin compositions are disclosed.

公开(公告)号：US20170247503A1

公开(公告)日：2017-08-31

申请号：US15518509

申请日：2015-11-18

Applicant: Dow Global Technologies LLC

Inventor： Huifeng Qian ,  Gary A. Hunter ,  Gyongyi Gulyas

IPC: C08G59/68 ,  C08G59/24 ,  C08G59/72 ,  C08G59/50

CPC classification number: C08G59/685 ,  C08G59/245 ,  C08G59/5033 ,  C08G59/681 ,  C08G59/72 ,  C08G2650/50

Abstract: An accelerator composition for epoxy resin formulations, the accelerator composition including (i) at least one transition metal complex and (ii) at least one salt where the cation of the salt is a metal or an onium cation with a non-nucleophilic anion; and a curable epoxy resin composition including (A) at least one epoxy thermosetting resin, (B) at least one curing agent, and (C) the above accelerator; a curable epoxy resin composition containing the above accelerator; and a cured thermoset produced from the above curable epoxy resin composition.