Dow Silicones Corporation

Dow Global Technolgoies LLC

Rohm and Haas Company

Dow Corning Corporation

Dow Toray Co., Ltd.

Nanguo Liu

Zhenbin Niu

Zachary Wenzlick

Eric Jude Joffre

Nick Evan Shephard

Yang Cheng

David Rich

Eric E Joffre

Steven Swier

Morris C Wills

Hailan Guo

Yanhu Wei

Randall Gene Schmidt

Jodi M Mecca

Tatsuo Souda

James Walker

Michael David Telgenhoff

Tsunehito Sugiura

Xiaoyuan Zhou

Matthew Jeletic

Bryan L McCulloch

Juyoung Yook

Yi Guo

Hongyu Chen

Ye Wu

John Bernard Horstman

Fanwen Zeng

Ralph Craig Even

Don Lee Kleyer

Brian Harkness

Masaaki Amako

Gerald Lawrence Witucki

Bianxiao Zhong

Muhunthan Sathiosatham

Timothy Paul Mitchell

Scott D Boelter

Maki Itoh

Zhengming Tang

Shawn K Mealey

Sze-Sze Ng

Matthew Olsen

John Roberts

Pierre Chevalier

John B Cuthbert

Tian Lan

Jiang Peng

Junying Liu

Jason S Fisk

Matthew Carter

Jonathan Hannington

Elizabeth Santos

Simon Toth

Gang Lu

Tzu-Chi Kuo

Hojin Choi

Michael Telgenhoff

Beth Kelley

Randy Schmidt

Ryan Christopher Thomas

Scott Miller

Travis Sunderland

Jeffrey Rastello

Joel McDonald

Sachit Goyal

Hilda G Buss

Donald Eldred

Fang Zhang

Wesley Sattler

Tim Mitchell

Mike Ferritto

Bo Kyung Bona Kim

Alex Knott

Susan M Rhodes

Michael H Wang

Deokgu Kim

Brian Dorvel

Tanvi S Ratani

Richard P Woodworth

Matt Olsen

Christoph Lang

Thu Vi

Cameron Kadleck

Jon Hannington

Weston Tulloch

Adebola Ogunniyi

André Yvon-bessette

Arash R Nowbahar

Bryan L Mcculloch

Zhiping Zeng

Xing Wei

Song Gao

Michael Wang

Donald V Eldred

Bryan Mcculloch

Curable silicone elastomer compositions having enhanced adhesive properties with respect to a wide variety of substrates are described. The compositions described herein are provided with a phenylmethylpolysiloxane based additive which comprises at least one, alternatively at least two Si—H groups per molecule and at least one, alternatively at least two epoxide functional groups per molecule. Said phenylmethylpolysiloxane based additives provide resulting elastomers with improved heat-humidity stabilization.

Silicone elastomer compositions

A silicone hybrid pressure sensitive adhesive composition that cures to form a silicone hybrid pressure sensitive adhesive contains a polydiorganosiloxane having reactive groups. The reactive groups include a silicon bonded(meth)acryloxyalkyl-functional group in a pendant position and optionally a silicon bonded aliphatically unsaturated hydrocarbon group in a terminal position. The silicone hybrid pressure sensitive adhesive composition can be cured via hydrosilylation reaction on a surface of a substrate to form a protective film. The protective film can be used to protect a passivation layer during a process for fabricating an (opto)electronic device such as a flexible organic light emitting diode display. The protective film can be exposed to radiation to reduce tack and facilitate detaching the protective film from the passivation layer.

Silicone hybrid pressure sensitive adhesive and methods for its preparation and use in protective films for (opto)electronic device fabrication

A one-part room temperature vulcanisable (RTV) silicone composition containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt which cures to a silicone elastomer which may be used as a clear sealant which avoids discolouration and loss of adhesion upon aging.

Sealant composition

A branched polysiloxane compound and methods for its preparation are disclosed. The branched polysiloxane compound may be used as a heat transfer fluid.

Branched polysiloxanes and methods for their preparation and use as heat transfer fluids

A method of preparing an acrylate-functional branched organosilicon compound ('compound') is provided, and comprises reacting (A) a branched organosilicon compound and (B) an acrylate compound in the presence of (C) a catalyst, wherein component (A) has the general formula X—Si(R), where X comprises a halogen-functional moiety and each Ris selected from R and —OSi(R), with the proviso that at least one Ris —OSi(R); each Ris selected from R, —OSi(R), and —[OSiR]OSiR; each Ris selected from R, —OSi(R), and —[OSiR]OSiR; each Ris selected from R and —[OSiR]OSiR; each R is an independently selected hydrocarbyl group; and 0≤m≤100; with the proviso that at least one of R, Rand Ris —[OSiR]OSiR. The compound prepared by the method, a copolymer comprising the reaction product of the compound and a second compound, a method of forming the copolymer, and a composition comprising the copolymer are each also provided.

Acrylate-functional branched organosilicon compound, method of preparing same, and copolymer formed therewith

A multifunctional organosilicon compound is provided which has the general formula XSi([OSiR]p-0-SiRY)a(R)— 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.

Multifunctional organosilicon compound and related methods, compounds, and compositions

A branched organosilicon compound ('compound') is provided having the general formula: (R)Si—X—NRR, where X is a divalent linking group; Ris H or R; Rcomprises an acryloxy moiety; each Ris selected from R and —OSi(R), with the proviso that at least one Ris —OSi(R); where each Ris selected from R, —OSi(R), and —[OSiR]mOSiR; where each Ris selected from R, —OSi(R), and —[OSiR]OSiR; and where each Ris selected from R and —[OSiR]OSiR, with the proviso that at least one of R, Rand Ris —[OSiR]OSiR; 0≤m≤100; and each R is a substituted or unsubstituted hydrocarbyl group. Also provided is a method of preparing the compound, a copolymer comprising the reaction product of the compound and a second compound reactive with the compound, a method of forming the copolymer, and a composition including at least one of the compound and the copolymer.

Branched organosilicon compound, method of preparing same, and copolymer formed therewith

A method for preparing functionalized polyorganosiloxanes is disclosed. The method includes 1) combining starting materials including A) a boron-containing Lewis acid catalyst, and B) an organosilicon compound having an average, per molecule of at least 1 silicon bonded groups of the formula —OR; wherein each Ris an independently selected monovalent hydrocarbon group of 1 to 6 carbon atoms, thereby forming a catalyzed mixture; and thereafter 2) adding the catalyzed mixture into a starting material including C) an organohydrogensiloxane having at least 1 silicon bonded hydrogen atom per molecule, thereby preparing a product comprising the functionalized polyorganosiloxane and a by-product comprising HR.

Method for preparing a functionalized polyorganosiloxane

A branched organosilicon compound ('compound') having the general formula (R1)Si—X—Y is provided. In the formula: each Ris selected from R and —OSi(R)3, with the proviso that at least one Ris —OSi(R)3; each R is independently a substituted or unsubstituted hydrocarbyl group; each Ris selected from R, —OSi(R)3, and —[OSiR]mOSiR; each Ris selected from R, —OSi(R)3, and —[OSiR]mOSiR; each Ris selected from R and —[OSiR]mOSiR; with the proviso that at least one of R, Rand Ris —[OSiR]mOSiR; 0<m≤100; X is a divalent linking group; and Y is selected from one of formulas (1)-(111) described herein. Also provided is a method of preparing the compound via hydrosilylation reaction, a copolymer comprising the reaction product of the compound and a second compound reactive with the compound, a method of forming the copolymer, and a composition including at least one of the compound and the copolymer.

A branched organosilicon compound is provided which has the general formula (R)3Si—X—NR—X—NR2- In the formula: each Ris selected from R and —OSi(R)3, with the proviso that at least one Ris —OSi(R); each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each Ris selected from R, —OSi(R), and —[OSiR]OSiR; each R6 is selected from R and —[OSiR]OSiR; with the proviso that at least one of R, Rand R6 is —[OSiR]mOSiR; 0<m≤100. Each R is independently a substituted or unsubstituted hydrocarbyl group, e.g. a methyl group. Each of X and Xis an independently selected divalent linking group, e.g. a divalent hydrocarbon linking group. Each Rindependently comprises a substituted or unsubstituted hydrocarbyl group, a polyether group, or H. At least one Rcomprises a polyether group. A method of preparing the branched organosilicon compound and a composition comprising the branched organosilicon compound are also provided.

Branched organosilicon compound, method of preparing same, and compositions comprising same

A composition contains a mixture of silyl hydride, an alpha-beta unsaturated ester, a Lewis acid catalyst and an amine having the following formula: RRRN; where the nitrogen is not a member of an N═C—N linkage and where each of R, R, and Ris independently selected from a group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; and wherein at least one of R, Rand Ris a conjugated moiety connected to the nitrogen by a conjugated carbon.

Thermally initiated acid catalyzed reaction between silyl hydride and alpha-beta unsaturated esters

A branched organosilicon compound is provided having the general formula: (R)—X—[SiR0]—SiRR. In the formula: each R is independently a substituted or unsubstituted hydrocarbyl group; each Ris selected from R and —OSi(R), with the proviso that at least one Ris —OSi(R); each Ris selected from R, —OSi(R), and —[OSiR]OSiR; each R5 is selected from R, —OSi(R), and —[OSiR]OSiR; each Ris selected from R and —[OSiR]OSiR; with the proviso that at least one of R, Rand Ris —[OSiR]OSiR; 0≤m≤100; X is a divalent linking group; 1≤n≤10; and Rhas the general -D-O—(CHO)—R. In R, D is a divalent hydrocarbon linking group, subscript p is 0 or 1, subscript q is independently selected from 2 to 4 in each moiety indicated by subscript r, subscript r is from 1 to 500, and Ris selected from substituted or unsubstituted hydrocarbyl groups and H.

A method of preparing an acryloxy-functional organosilicon compound is provided. The method comprises reacting (A) an initial organosilicon compound and (B) an acrylate compound in the presence of (C) a catalyst. The initial organosilicon compound (A) has one alcohol functional group (i.e., is monohydroxyl functional). The catalyst (C) has the formula M[RC(O)CHC(O)R], where M is a group IV transition metal and each R is an independently selected substituted or unsubstituted hydrocarbyl group. An acryloxy-functional organosilicon compound prepared by the method is also provided. The acryloxy-functional organosilicon compound is prepared in increased purity, without relying on toxic catalysts.

Method of preparing acryloxy-functional organosilicon compounds

A polydiorganosiloxane having both a silicon bonded aliphatically unsaturated group and a silicon bonded poly(meth)acrylate polymer or copolymer, and method for preparation of this polydiorganosiloxane are disclosed. The method preserves the aliphatically unsaturated groups when grafting the poly(meth)acrylate to the polydiorganosiloxane. This polydiorganosiloxane is useful in hydrosilylation reaction curable compositions, such as pressure sensitive adhesive compositions.

Polyorganosiloxane having poly(meth)acrylate groups and methods for the preparation and use thereof

A silicone hybrid pressure sensitive adhesive composition that cures to form a silicone hybrid pressure sensitive adhesive contains a polydiorganosiloxane having reactive groups. The reactive groups include a silicon bonded (meth)acryloxyalkyl-functional group in a pendant position and a silicon bonded aliphatically unsaturated hydrocarbon group. An adhesive article, such as a tape, can be formed by coating the silicone hybrid pressure sensitive adhesive composition on a surface of a substrate and curing said composition via hydrosilylation reaction (B-staged cure) to form a silicone hybrid pressure sensitive adhesive layer on the surface. The silicone hybrid pressure sensitive adhesive layer contains (meth)acryloxyalkyl-functional groups, which can further react and crosslink via exposure to UV radiation (C-staged cure).

Silicone hybrid pressure sensitive adhesive and methods for its preparation and use on uneven surfaces

Growing community of inventors

Midland, MI, United States of America

Nanguo Liu