公开(公告)号：US20220389276A1

公开(公告)日：2022-12-08

申请号：US17761257

申请日：2019-11-15

Applicant: Dow Global Technologies LLC

Inventor： Zhengming Tang ,  Yongchun Chen ,  Xiuqing Xu ,  Hongyu Chen ,  Ke Shi ,  Nan Wang ,  Qingwei Meng

IPC: C09D183/14 ,  C09D163/00 ,  C09D175/04 ,  C09D7/65

Abstract: Described is a curable composition, and particularly a two-component composition comprising a silane modified polymer; an epoxy resin terminated with epoxy terminal group; wherein the composition further comprises a hardening-compatibilizing agent which has at least one silane group and at least two amine groups. The curable composition exhibits enhanced adhesion strength and good elongation at break. A method for applying the curable composition on the surface of a substrate is also provided.

公开(公告)号：US20220403165A1

公开(公告)日：2022-12-22

申请号：US17597709

申请日：2019-08-06

Applicant: Dow Global Technologies LLC

Inventor： Cheng Shen ,  Nan Wang ,  Gang Sun ,  Masayuki Suzuki ,  Jiawen Xiong ,  Wei Li

IPC: C08L75/08 ,  C08G18/12 ,  C08G18/48

Abstract: A one-component type polyurethane prepolymer composition comprises a reaction product formed through a reaction between reactants comprising (a) at least one polyisocyanate, and (b) a polyol blend comprising at least one bifunctional polyether polyol, wherein the bifunctional polyether polyol is a homopolymer of propylene oxide, homopolymer of butylene oxide, or copolymer of alkylene oxide, and has a number average molecular weight from 3000 g/mol to 9000 g/mol, and at least one trifunctional polyether polyol, wherein the trifunctional polyether polyol is a copolymer of alkylene oxide and end-capped with 10 wt % to 28 wt %, by the total weight of the trifunctional polyether polyol, of ethylene oxide, and has a number average molecular weight from 5000 g/mol to 8000 g/mol, wherein the bifunctional polyether polyol and the trifunctional polyether polyol are present in a parts by weight ratio from 4:1 to 2.5:1, and wherein the polyisocyanate and the polyol blend are present in a parts by weight ratio of from 1:7 to 1:2.5.

公开(公告)号：US20220389295A1

公开(公告)日：2022-12-08

申请号：US17767108

申请日：2019-11-15

Applicant: Dow Global Technologies LLC

Inventor： Zhengming Tang ,  Yongchun Chen ,  Xiuqing Xu ,  Hongyu Chen ,  Xuemei Zhai ,  Ke Shi ,  Nan Wang ,  Qingwei Meng

IPC: C09J183/14 ,  C09J163/00 ,  C09J183/04 ,  C09J7/10 ,  C09J11/08

Abstract: Described is a curable composition, and particularly a two-component composition comprising a silane modified polymer; an epoxy resin terminated with epoxy terminal group; wherein the composition further comprises a hardening agent and a compatibilizer which has at least one silane group and at least one epoxy terminal group. The curable composition exhibits enhanced adhesion strength and good elongation at break. A method for applying the curable composition on the surface of a substrate is also provided.

公开(公告)号：US20220380515A1

公开(公告)日：2022-12-01

申请号：US17774171

申请日：2019-11-15

Applicant: Dow Global Technologies LLC

Inventor： Yongchun Chen ,  Zhengming Tang ,  Hongyu Chen ,  Jian Kang ,  Xiuqing Xu ,  Nan Wang ,  Qingwei Meng ,  Chuanwei Zuo

IPC: C08G18/28 ,  C08G18/18 ,  C08G18/48

Abstract: Described is a curable composition comprising a silane modified polymer; an epoxy resin terminated with epoxy terminal group; a compatibilizer having at least one silane group and at least one epoxy terminal group or at least one nitrogen-containing groups; and optionally a hardening agent; wherein the composition further optionally comprises at least one of a nitrogen-containing unsaturated heterocyclic compound catalyst and a nitrogen-containing phenol catalyst. The curable composition exhibits high hermeticity, fast curing speed, quick adhesion build up, dry surface and strong adhesion strength. A method for applying the curable composition on the surface of a substrate is also provided.

公开(公告)号：US20240003079A1

公开(公告)日：2024-01-04

申请号：US18252062

申请日：2021-01-18

Applicant: Dow Global Technologies LLC

Inventor： Xiaolian Hu ,  Chao Zhang ,  Biao Ma ,  Nan Wang ,  Yanli Feng

IPC: D06N3/14 ,  C08G18/12 ,  C08G18/32 ,  C08G18/61 ,  C08G18/65 ,  C08J5/18 ,  D06N3/00

CPC classification number: D06N3/145 ,  C08G18/12 ,  C08G18/3228 ,  C08G18/61 ,  C08G18/6529 ,  C08J5/18 ,  D06N3/0059 ,  D06N3/0011 ,  D06N3/0047 ,  D06N3/0065 ,  D06N3/0097 ,  D06N3/147 ,  C08J2375/12 ,  D06N2203/068 ,  D06N2205/045 ,  D06N2209/103 ,  D06N2209/108

Abstract: An internally emulsified polyurethane dispersion, which is prepared by using a combined chain extender system of a hydrophilic amino siloxane compound and a polyetheramine compound, is provided. The internally emulsified polyurethane dispersion can be used to prepare a synthetic leather product having good anti-stickiness, wrinkle resistance, color fastness and superior mechanical properties. A laminated synthetic leather article prepared with said internally emulsified polyurethane dispersion as well a method for preparing the synthetic leather article are also provided.