Dow Silicones Corporation

Dow Global Technolgoies LLC

Dow Corning Corporation

Donald Eldred

Matthew Jeletic

John Roberts

Ryan Christopher Thomas

Nanguo Liu

Nick Evan Shephard

Zachary Wenzlick

Matthew Olsen

Eric E Joffre

Michael Telgenhoff

Andre Yvon-Bessette

Cameron Kadleck

A method for preparing a silyl ester compound is disclosed. The silyl ester compound may be a silane monomer or siloxane oligomer. The silyl ester compound may be hydro silylated with a polyorganohydrogensiloxane to form a silyl ester protected product, which may then be de-protected with water to prepare a carboxy-functional polyorganosiloxane.

Methods for the preparation and use of silyl ester compounds

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 method of preparing an organosilanol compound is disclosed. The method comprises reacting (A) an initial organosilicon compound and (B) water in the presence of (C) a catalyst. The catalyst (C) is selected from: (C1) [(CHirCl][(p-cymene)RuCl]; and (C3) Pd/C. The initial organosilicon compound (A) has the general formula HO—Si(R)—[Si(R)O]—OSi(R)—Y and the organosilanol compound has the general formula HO—Si(R)2-[Si(R)O]—OSi(R)—Y, where each R is an independently selected hydrocarbyl group; Y comprises a functional moiety selected from alkoxysilyl moieties, epoxide moieties, and acryloxy moieties, with the proviso that Y is other than the acryloxy moieties when the catalyst (C) is (C3) Pd/C; and subscript a is 0 or 1. The organosilanol compound prepared by the method is also provided.

Method of preparing functional organosilanol compounds

A method can selectively prepare a compound of formula (IV), where each Rand each Rare independently selected from an alkyl group, an aryl group, a halogenated alkyl group, or a halogenated aryl group of 6 to 10 carbon atoms each Ris an alkane-diyl group, and each Ris hydrogen or an alkyl group. The method involves hydrosilylation of an organohydrogensiloxane oligomer with a carboxylic acid alkenyl ester using an iridium complex catalyst. 

Method and composition for hydrosilylation of carboxylic acid alkenyl esters and hydrogen terminated organosiloxane oligomers with an iridium complex catalyst

Growing community of inventors

Midland, MI, United States of America

Donald Eldred