Dow Corning Corporation

Dow Silicones Corporation

Dow Global Technolgoies LLC

Dow Toray Co., Ltd.

Eric Jude Joffre

Bizhong Zhu

Nanguo Liu

William Hoy Heath

Brian Harkness

Martin Grasmann

William Johnson

Andreas Thomas Wolf

David M Hagan

Daniel Trent Berg

Stephen Michael Hlinka, Ii

Arthur James Tselepis

Bindu Krishnan

Xiaoyuan Zhou

Donald Taylor Liles

Joseph Charles McAuliffe

Lenin J Petroff

Seiki Tamura

Jodi M Mecca

Michael Salvatore Ferritto

Michael Stephen Starch

James Walker

Zhenbin Niu

Anil Kumar Tomar

Virginia Kay O'Neil

Xavier Thomas

Qiuyun Xu

David Rich

Csilla Kollar

Bryan L McCulloch

Aaron Greiner

Simon Toth

David Clayton Gantner

Jeanette Young

Christine Marchand

James Anderson Beck

Isabelle Van Reeth

Tzu-Chi Kuo

Gang Lu

Cindy Delvalle

Concettina Scavuzzo

Reza Haghpanah

Beth Kelley

Gary E LeGrow

Anthony Revis

David L Murray

Don Lee Kleyer

Nick Evan Shephard

Duane R Bujalski

James A Rabe

Jonathan Lipowitz

Bethany Johnson

Jon Vierling Degroot, Jr

Timothy Paul Mitchell

Leon Andre Marteaux

Severine Cauvin

Linda M Madore

Zhanjie Li

Zachary Wenzlick

Tsunehito Sugiura

Vicky Sue Cobb

Brian Jeffery Swanton

William H Atwell

Victor Albert Raul

Eun Sil Jang

Burt Michael Wrolson

Lorry Deklippel

Christel Simon

Sean Reisch

Wesley Sattler

Randy Schmidt

Feifei Lin

Martin K Severance

Virginie Caprasse

Mark Keinath

Tim Mitchell

Michael Philip Hill

Robert Mark Schroeder

Margo Lynn McIvor

Cassie Emelia Cuthbert

Benoit Henault

Leon Grant Hides

Paula Michele Bauer

Lylenette Canfield

Joseph C Mcauliffe

Zachary R Wenzlick

Serge Firmin Alain Creutz

Fernando Vazquez Carrillo

Michael Costello

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

Described herein are methods for making alkenyl disiloxanes, comprising combining an alkenyl halosilane with a bis-hydrido terminated alkyl disiloxane and adding the mixture to water, an acidic aqueous solution, or a basic aqueous solution. The ratio of the alkenyl halosilane to the bis-hydrido terminated alkyl disiloxane is about 1:10 to about 10:1. The alkenyl halosilane and bis-hydrido terminated alkyl disiloxane are mixed at about 20° C. to about 45° C. In an example, no organic solvent is present. The reaction product is separated and washed with saturated NaHCOsolution (e.g., sodium bicarbonate).

Process for synthesizing alkenyl disiloxane

A polyfunctional organohydrogensiloxane and method for its preparation using a boron containing Lewis acid as catalyst is disclosed. A clustered functional organosiloxane may be prepared by a method comprising functionalizing the polyfunctional organohydrogensiloxane. The polyfunctional organohydrogensiloxane and the clustered functional organosiloxane are useful in curable compositions. The polyfunctional organohydrogensiloxane may be used in a release coating composition. The clustered functional organosiloxane may be used in an adhesive composition.

Polyfunctional organosiloxanes, compositions containing same, and methods for the preparation thereof

A polyfunctional organohydrogensiloxane is prepared using a boron containing Lewis acid as catalyst. The polyfunctional organohydrogensiloxane may be formulated into release coating compositions. Alternatively, the polyfunctional organohydrogensiloxane may be further functionalized with a curable group to form a clustered functional organosiloxane. The clustered functional organosiloxane may be formulated into thermal radical cure adhesive compositions.

Methods for making polyfunctional organosiloxanes and compositions containing same

A composition for forming a silicone elastomer is disclosed. The composition comprises: A) a linear organopolysiloxane having at least two silicon-bonded ethylenically unsaturated groups per molecule; B) a linear organohydrogensiloxane having at least two silicon-bonded hydrogen atoms per molecule; C) at least one cross-linker; and D) a hydrosilylation catalyst. The cross-linker C) is selected from the group consisting of: C1) an organopolysiloxane having at least three silicon-bonded ethylenically unsaturated groups per molecule; and C2) an organopolysiloxane having at least three silicon-bonded hydrogen atoms per molecule. At least one of the silicon-bonded ethylenically unsaturated groups of component C1) has a lower reactivity relative to the silicon-bonded ethylenically unsaturated groups of component A). Moreover, at least one of the silicon-bonded hydrogen atoms of component C2) has a lower reactivity relative to the silicon-bonded hydrogen atoms of component B). Methods of forming three-dimensional (3D) articles utilizing the compositions are also disclosed.

Low viscosity compositions and 3D printing methods utilizing the compositions

A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting crude reaction product is treated with a treating agent, and thereafter distilled to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.

Method for the preparation of an alkoxy-functional organohydrogensiloxane oligomer and use of said oligomer

A method for the preparation of an alkoxy-functional hydrogensiloxane oligomer includes reacting a polyorganohydrogensiloxane oligomer and an aliphatically unsaturated alkoxysilane in the presence of a hydrosilylation reaction and a promoter. The resulting reaction product is distilled, treated with a treating agent, and distilled again to produce the alkoxy-functional organohydrogensiloxane oligomer. The alkoxy-functional hydrogensiloxane oligomer can be reacted with polyorganosiloxane having an aliphatically unsaturated monovalent hydrocarbon group to form a polyalkoxy-functional polyorganosiloxane. The polyalkoxy-functional polyorganosiloxane can be formulated in condensation reaction curable compositions.

Method for the preparation use of an alkoxy-functional organohydrogensiloxane oligomer using purified starting materials an duse of the oligomer

A silicone-polyether copolymer has the formula X[ZY], where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyether moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is &#x3e;1, and each subscript j and o are independently &#x3e;0 and &#x3c;2, with the proviso that j+o=2 in each moiety indicated by subscript c. A method of preparing the silicone-polyether copolymer is also disclosed, and comprises reacting a polyether compound, a chain extending organosilicon compound, and an endcapping organosilicon compound in the presence of a hydrosilylation catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.

Silicone-polyether copolymer, sealants comprising same, and related methods

A detergent composition comprises a trisiloxane having at least one carbinol functional group. The trisiloxane comprises the reaction product of (A) an initial trisiloxane and (B) an organic compound. Component (A) has a pendant silicon-bonded functional group selected from a hydrogen atom, an epoxy-containing group, an ethylenically unsaturated group, and an amine group. Typically, component (A) is free of certain terminal silicon-bonded functional groups and is free of polyoxyalkylene groups. Component (B) has a functional group reactive with the pendant silicon-bonded functional group of component (A), and has at least one hydroxyl functional group. The trisiloxane may be of the following general formula (I): (RSiO)(RRSiO)(RSiO) (I). In formula (I), each Ris an independently selected hydrocarbyl group. Rmay be selected from the groups (i) to (x) described herein, each of the groups having at least one carbinol group. Typically, the trisiloxane has 1-6 carbinol groups.

Detergent composition comprising a carbinol functional trisiloxane

A silicone material is provided. The silicone material is an organopolysiloxane or acid-neutralized salt thereof that contains a side-chain bonded hydrophilic group having a tertiary-amine structure and represented by the general formula:&#x2014;CH&#x2014;O&#x2014;CH&#x2014;CH(OH)&#x2014;CH&#x2014;N(R)(R)wherein q is a number ranging from 1 to 6, and wherein each of Rand Ris independently a halogen-substituted or non-substituted monovalent hydrocarbon group or an alkanol group. At least one of Rand Rhas a hydroxyl group, provided the total number of hydroxyl groups in Rand Ris at most three (3). Any of Rand Rdoes not have a nitrogen atom in the group. The silicone material has a number of beneficial properties.

Organopolysiloxane, acid-neutralized salt thereof, and applications thereof

An isocyanate-functional silicone-polyether copolymer having a particular structure is disclosed. A method of preparing the isocyanate-functional silicone-polyether copolymer is also disclosed, the method comprising reacting a polyether compound and an organosilicon compound to give the isocyanate-functional silicone-polyether copolymer. A silicone-polyether-urethane copolymer formed therewith, as well as a method of preparing the silicone-polyether-urethane copolymer, are also disclosed. Sealants comprising the isocyanate-functional silicone-polyether copolymer and/or the silicone-polyether-urethane copolymer are further disclosed.

Isocyanate-functional silicone-polyether copolymer, silicone-polyether-urethane copolymer formed therewith, sealants comprising same, and related methods

A silicone-polyether copolymer has the formula X&#x2014;Y, where X is a silicone moiety having a particular structure and Y is a polyether moiety. An isocyanate-functional silicone-polyether copolymer formed therewith is also disclosed. Further, a silicone-polyether-urethane copolymer formed with the isocyanate-functional silicone-polyether copolymer is disclosed. Related methods of preparation as well as sealants and cured products thereof are further disclosed.

Silicone-polyether copolymer, isocyanate-functional silicone-polyether copolymer formed therewith, silicone-polyether-urethane copolymer, sealants comprising same, and related methods

A silicone-polyether copolymer has the formula X&#x2014;Y, where each X is an independently selected silicone moiety having a particular structure, Y is a linear or branched polyether moiety, and subscript g is on average more than 1. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.

Silicone-polyether copolymer, method of preparing same, and sealant comprising same

An emulsion contains a saccharide siloxane copolymer as an emulsifier. The emulsion is useful in formulating personal care products.

Emulsions containing saccharide siloxane copolymer emulsifiers and methods for their preparation and use

Growing community of inventors

Midland, MI, United States of America

Eric Jude Joffre