公开(公告)号：US12110361B2

公开(公告)日：2024-10-08

申请号：US17414997

申请日：2019-12-10

Applicant: Dow Global Technologies LLC

Inventor： Weijun Zhou ,  William A. Koonce ,  William J. Harris ,  Yonghui Zhang

IPC: C08F283/00 ,  C08G18/18 ,  C08G18/20 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/50 ,  C08G18/67 ,  C08G18/76 ,  C08J9/14

CPC classification number: C08G18/482 ,  C08G18/1808 ,  C08G18/1816 ,  C08G18/2036 ,  C08G18/4883 ,  C08G18/5033 ,  C08G2110/005

Abstract: Embodiments of the present disclosure are directed towards hybrid foam formulations that include: an isocyanate-reactive composition, and a high-functionality crosslinker; an azo type radical initiator; and an isocyanate.

公开(公告)号：US12110306B2

公开(公告)日：2024-10-08

申请号：US17427149

申请日：2020-01-29

Applicant: Dow Global Technologies LLC

Inventor： Christopher S. Letko ,  Ravi B. Shankar ,  Harshad M. Shah ,  Weijun Zhou

IPC: C07F9/40 ,  C08G18/10 ,  C08G18/38 ,  C08G18/42 ,  C08G18/48

CPC classification number: C07F9/4006 ,  C08G18/10 ,  C08G18/388 ,  C08G18/42 ,  C08G18/4219 ,  C08G18/48 ,  C08G2110/0025

Abstract: Embodiments of the present disclosure are directed towards β-hydroxyphosphonate functionalized polyols and isocyanate reactive compositions that include the β-hydroxyphosphonate functionalized polyol and a base polyol.

公开(公告)号：US20220098358A1

公开(公告)日：2022-03-31

申请号：US17426722

申请日：2020-01-30

Applicant: Dow Global Technologies LLC

Inventor： Christopher S. Letko ,  Weijun Zhou ,  Thomas P. Willumstad

IPC: C08G18/48 ,  C08G18/76 ,  C08G18/66 ,  C08G18/42 ,  C08G18/40 ,  C08G18/32 ,  C08J9/14

Abstract: Embodiments of the present disclosure are directed towards isocyanate reactive compositions that include a polyol and tris(4-hydroxyphenyl)methane alkoxylate.

公开(公告)号：US20230132681A1

公开(公告)日：2023-05-04

申请号：US17996141

申请日：2021-06-07

Applicant: Dow Global Technologies LLC

Inventor： Weijun Zhou ,  Thomas Mosciatti

IPC: C08G18/61 ,  C08G18/08 ,  C08G18/12 ,  C08G18/42 ,  C08G77/18 ,  C08J9/14

Abstract: An isocyanate-reactive composition comprising (i) at least one isocyanate-reactive compound; and (ii) at least one T-shaped siloxane material at a predetermined amount; and a foam-forming composition for producing a polyurethane or polyisocyanurate foam comprising at least one isocyanate component and at least one isocyanate-reactive component; wherein the at least one isocyanate-reactive component is the above isocyanate-reactive composition.

公开(公告)号：US11472910B2

公开(公告)日：2022-10-18

申请号：US17044651

申请日：2018-05-18

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Yanli Feng ,  Weijun Zhou ,  Luigi Bertucelli ,  Rajat Duggal ,  Yibei Gu ,  Wei Liu ,  Davide Micheletti

IPC: C08G18/42 ,  B32B5/20 ,  B32B15/04 ,  B32B15/095 ,  B32B15/20 ,  C08G18/64 ,  C08G18/76 ,  C08G18/80

Abstract: A polyisocyanate component, a polyurethane foaming system, and an article made therefrom, wherein the polyisocyanate component includes (a) a preformed mixture including an aromatic oxazolidone compound that is the reaction product of at least one aromatic epoxide and at least one first polyisocyanate having an average isocyanate functionality of no more than 2.7 and greater than 1.8, in the presence of at least one catalyst, the aromatic oxazolidone compound includes at least one free isocyanate group and at least one aromatic oxazolidone group, the aromatic oxazolidone group includes an aromatic group and an oxazolidone group, and (b) at least one second polyisocyanate has an average isocyanate functionality equal to or greater than 2.7 and less than 6.0. The second polyisocyanate is added to the preformed mixture to form the polyisocyanate component. The polyisocyanate component has a viscosity of no more than 4.0 Pa-sat 25° C., an aromatic oxazolidone group content of 2 weight percent to 10 weight percent based on a total weight of the polyisocyanate component, and an average isocyanate functionality of from 1.8 to 6.0.

公开(公告)号：US20220119427A1

公开(公告)日：2022-04-21

申请号：US17427149

申请日：2020-01-29

Applicant: Dow Global Technologies LLC

Inventor： Christopher S. Letko ,  Ravi B. Shankar ,  Harshad M. Shah ,  Weijun Zhou

IPC: C07F9/40 ,  C08G18/42 ,  C08G18/38

Abstract: Embodiments of the present disclosure are directed towards β-hydroxyphosphonate functionalized polyols and isocyanate reactive compositions that include the β-hydroxyphosphonate functionalized polyol and a base polyol.

公开(公告)号：US20170369654A1

公开(公告)日：2017-12-28

申请号：US15602196

申请日：2017-05-23

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Electronic Materials LLC

Inventor： Joseph Kao ,  Weijun Zhou ,  Yusuke Matsuda ,  Yuanqiao Rao ,  Michael Mulzer ,  Jieqian Zhang

IPC: C08G77/04 ,  C09D7/12 ,  C08K3/20 ,  C03C17/00 ,  C08G77/18 ,  C08F2/04 ,  C09D7/14 ,  C08K3/22

CPC classification number: C08G77/04 ,  C03C17/001 ,  C08F2/04 ,  C08G77/14 ,  C08G77/18 ,  C08K3/20 ,  C08K3/22 ,  C08K3/36 ,  C08K2201/003 ,  C08K2201/005 ,  C08K2201/006 ,  C08K2201/011 ,  C08L83/06 ,  C09D5/00 ,  C09D7/67 ,  C09D7/80 ,  C09D183/06

Abstract: A curable resin composition comprising: (a) 27 to 60 wt % of a liquid siloxane oligomer comprising polymerized units of formula R1mR2nSi(OR3)4-m-n, wherein R1 is a C5-C20 aliphatic group comprising an oxirane ring fused to an alicyclic ring, R2 is a C1-C20 alkyl, C6-C30 aryl group, or a C5-C20 aliphatic group having one or more heteroatoms, R3 is a C1-C4 alkyl group or a C1-C4 acyl group, m is 0.1 to 2.0 and n is 0 to 2.0; (b) 35 to 66 wt % non-porous nanoparticles of silica, a metal oxide, or a mixture thereof, having an average particle diameter from 5 to 50 nm; and (c) 0.5 to 7 wt % of a cationic photoinitiator.

公开(公告)号：US20170362459A1

公开(公告)日：2017-12-21

申请号：US15534094

申请日：2015-12-07

Applicant: Rohm and Haas Electronic Materials LLC ,  Dow Global Technologies LLC

Inventor： Praveen Agarwal ,  Justice Alaboson ,  Shih-Wei Chang ,  John W. Lyons ,  Kathleen M. O'Connell ,  Caroline Woelfle-Gupta ,  Weijun Zhou

IPC: C09D139/08 ,  C08K5/095 ,  C08K5/00 ,  C08K5/06 ,  G02F1/13363 ,  C09D133/12

CPC classification number: H01F1/012 ,  C08K5/0016 ,  C08K5/06 ,  C08K5/095 ,  C08K5/101 ,  C08K5/151 ,  C09D133/12 ,  C09D139/08 ,  F25B21/00 ,  F25B2321/002 ,  G02F1/13363 ,  C08L33/12 ,  C08L39/08

Abstract: A polymeric material having a negative photoelastic constant. The polymeric material comprises: (a) a polymer comprising polymerized units of 2-vinylpyridine, 4-vinylpyridine, methyl methacrylate or a combination thereof; (b) a C9-C25 aliphatic polycyclic compound; and (c) an organic compound having a boiling point of at least 200° C.

公开(公告)号：US20250043058A1

公开(公告)日：2025-02-06

申请号：US18717466

申请日：2022-12-13

Applicant: Dow Global Technologies LLC

Inventor： Weijun Zhou ,  William J. Harris

IPC: C08G18/46 ,  C08G18/18 ,  C08G18/22 ,  C08G18/42 ,  C08G18/48 ,  C08J9/14 ,  C08K5/521

Abstract: Polyol compositions that contain imide groups are prepared by producing imide compounds from trimellitic anhydride and an aromatic aminoacid or an aromatic diamine, then esterifying the imide compounds with one or more polyols that have hydroxyl equivalent weights of 30 to 500. Aromatic carboxylic acid derivatives may be present during the esterification step to produce polyol compositions that contain species that have imide groups, and other species that do not have imide groups. The polyol compositions are useful in making isocyanate-based polymers, in particular polyurethane and/or polyurethane-isocyanuranate foams. The presence of the imide groups in the isocyanate-based polymers imparts fire retardant properties.

公开(公告)号：US20230141110A1

公开(公告)日：2023-05-11

申请号：US17907594

申请日：2021-06-07

Applicant: Dow Global Technologies LLC

Inventor： Weijun Zhou ,  Thomas Mosciatti

IPC: C08G18/08 ,  C08G18/10 ,  C08G18/42 ,  C08G18/09 ,  C08J9/00 ,  C08J9/14 ,  C08K5/5419

CPC classification number: C08G18/14 ,  C08G18/10 ,  C08G18/4211 ,  C08G18/092 ,  C08J9/0042 ,  C08J9/146 ,  C08K5/5419 ,  C08G2101/00

Abstract: A method for preparing polyisocyanurate and polyurethane foams by the use of a liquid siloxane nucleating additive, and a foam-forming composition for preparing foams with improved thermal insulation performance, comprising an isocyanate component, an isocyanate-reactive component, a blowing agent, and a liquid siloxane nucleating additive.