公开(公告)号：WO2022051204A1

公开(公告)日：2022-03-10

申请号：PCT/US2021/048163

申请日：2021-08-30

Applicant: DOW SILICONES CORPORATION ,  DOW GLOBAL TECHNOLOGIES LLC

Inventor： THOMAS, Ryan ,  SHEPHARD, Nick ,  LU, Gang ,  SUNDERLAND, Julia

IPC: C08G77/18 ,  C08G77/20 ,  C08G77/50 ,  C09J183/04 ,  C09J183/14

Abstract: A composition contains an organopolysiloxane having the following average chemical structure: X3SiO-SiR2-R'-(R2SiO)x-R2Si-[Rb-(R2SiO)y-R2Si-Rb'-(R2SiO)z-R2Si]m-R'-R2SiO-SiX3; where X is -OSiR2-R'-R2SiO-R2Si-R"-A; R is an alkyl group having from 2 to 6 carbons and aryl groups; R', R", Rb and Rb' are divalent hydrocarbon groups comprising a chain of 2 to 6 methylene units; A is acrylate, methacrylate or trialkoxysilyl; provided that, on average, 60 to 90 mole-percent of the A groups are acrylate and methacrylate; Subscript m has an average value in a range of zero to 10; Subscripts x, y and z each has an average value in a range of zero to 1200; and provided that the average values of m, x, y and z are such that the sum of the average values for x, y and z is in a range of 300-1200 and the molar ratio of methylene units to siloxane units is less than 0.15.

公开(公告)号：WO2022051203A1

公开(公告)日：2022-03-10

申请号：PCT/US2021/048160

申请日：2021-08-30

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  DOW SILICONES CORPORATION

Inventor： WALKER, James A. ,  LIU, Junying ,  HANLEY, Patrick S. ,  THOMAS, Ryan

IPC: C08G77/18 ,  C08G77/20 ,  C08G77/50 ,  C09J183/04 ,  C09J183/14

Abstract: A composition contains a cluster organopolysiloxane having structure (I) where X = (aa) and R is independently in each occurrence selected from a group consisting of aryl groups and alkyl groups having from 2 to 6 carbons; R' and R" are independently in each occurrence selected from divalent hydrocarbon groups containing from 2 to 6 carbon atoms; n is a value in a range of 50 to less than 200; and A is independently in each occurrence selected from a group consisting of acrylate, methacrylate and trialkoxysilyl groups; provided that, on average, 50 to 95 mole-percent of the A groups are selected from acrylate and methacrylate groups and 5 to 50 mole-percent of the A groups are selected from trialkoxysilyl groups.

公开(公告)号：WO2022051205A1

公开(公告)日：2022-03-10

申请号：PCT/US2021/048165

申请日：2021-08-30

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  DOW SILICONES CORPORATION

Inventor： LU, Gang ,  SUNDERLAND, Julia ,  THOMAS, Ryan ,  KADLECK, Cameron J. ,  ROMER, Duane R. ,  SHEPHARD, Nick

IPC: C09J183/06

Abstract: A curable organopolysiloxane composition contains: (A) 100 mass parts of a functional organopolysiloxane component having at least one radical curable group selected from an acrylate group and a methacrylate group and optionally one or more alkoxysilyl groups; (B) 0 to 100 mass parts of a condensation curable organo polysiloxane component; (C) one to 10 mass parts of tetraalkoxysilanes or a hydrolyate of the tetraalkoxysilanes; and optionally one or more of (D) a radical initiator, (E) a condensation catalyst, (F) fillers, (G) adhesion promoters, (H) pigments, (I) a non-reactive organopolysiloxane, and (J) inhibitors.

公开(公告)号：WO2020142443A1

公开(公告)日：2020-07-09

申请号：PCT/US2019/068969

申请日：2019-12-30

Applicant: DOW SILICONES CORPORATION

Inventor： ELDRED, Donald, V. ,  JELETIC, Matthew ,  JOFFRE, Eric ,  LIU, Nanguo ,  KADLECK, Cameron ,  OLSEN, Matthew ,  ROBERTS, John ,  SHEPHARD, Nick, E. ,  THOMAS, Ryan ,  WENZLICK, Zachary

IPC: C07F7/08 ,  C08G77/12 ,  C08K5/04 ,  C08L83/06

Abstract: A multifunctional organosilicon compound is provided which has the general formula XSi([OSiR 2 ]p-0-SiR 2 Y)a(R 1 ) 3-a - ln the formula, X is selected from H and ethylenically un saturated moieties; each Y independently comprises a functional moiety selected from alkoxysilyl moieties, acryloxy moieties, and epoxide moieties; each R is an independently selected hydrocarbyl group; each R1 is an independently selected hydrocarbyl group; subscript a is 1, 2, or 3; and each subscript b is independently 0, 1, or 2. A method of preparing the multifunctional organosilicon compound is also provided. The method comprises reacting (A) an organosilanol compound and (B) a silane compound having at least two hydrolysable groups. A functionalized siloxane compound prepared from the multifunctional organosilicon compound, a method of preparing the functionalized siloxane compound, and an adhesive comprising the functionalized siloxane compound are also provided.

公开(公告)号：WO2019040383A1

公开(公告)日：2019-02-28

申请号：PCT/US2018/047125

申请日：2018-08-21

Applicant: DOW SILICONES CORPORATION

Inventor： LU, Gang ,  SHEPHARD, Nick ,  THOMAS, Ryan ,  OLSEN, Matthew

IPC: C09J183/14

Abstract: A dual cure (condensation and free radical reaction) adhesive composition is useful for electronics applications.