Abstract: Embodiments of the present disclosure are directed towards a method of preparing a silanol-functional polyolefin that includes combining, under thermal conditions to effect synthesis of a silanol moiety, starting materials comprising A) a silyl hydride-functionalized polyolefin, optionally B) a solvent, C) a peroxy acid, optionally D) a neutralizing agent thereby forming a reaction mixture that under the thermal conditions produces the silanol-functional polyolefin having the silanol moiety.

Abstract: The present invention relates to a non-curable thermal grease comprising filler particles, boron nitride platelet particles, and a trialkoxysilyl-terminated polydimethylsiloxane. The non-curable thermal grease is useful as a thermal interface material in microelectronic devices to transport heat generated by a heat source to a heat sink.

Abstract: A method for preparing a silanol-functional organosilicon compound from a silyl hydride and an oxidant is provided. The oxidant includes peroxyacetic acid.

Abstract: The present disclosure provides a process. In an embodiment, the process includes first melt blending, at a temperature from 80° C. to 200° C., a first composition. The first composition is composed of (i) an ethylene-SiH polymer, (ii) a coagent that is a monoketone, and (iii) a triarylborane. The process includes forming a functionalized ethylene-Si polymer. The process further includes second melt blending, at a temperature from 80° C. to 200° C., a second composition. The second composition is composed of (iv) the functionalized ethylene-Si polymer, and (v) a cure catalyst. The process includes moisture curing the second composition, and forming a crosslinked ethylene-Si polymer. The present disclosure also includes a functionalized ethylene-Si polymer composition made from the present process.

Abstract: Alkoxylations are performed by reacting a cyclic oxide with a starter in the presence of certain phosphonium catalysts. The phosphonium catalysts are highly active and effective in such small quantities that it is often unnecessary to remove catalyst residues from the product. The phosphonium catalysts are very effective in alkoxylating even low molecular weight starters such as glycerol and sorbitol.

Abstract: The present disclosure provides a process. In an embodiment, the process includes melt blending, at a temperature from 80° C. to 200° C., a composition composed of (i) an ethyl-ene-SiH polymer, (ii) a crosslink agent that is 1,3-dibenzoylpropane, (iii) a triarylborane, and (iv) an alkylamine inhibitor. The process further includes forming a crosslinked ethylene-Si polymer. The present disclosure also provides crosslinked ethylene-Si polymer composition composed from the present process.

Abstract: A composition contains a phosphonium catalyst and a polyorganohydrogensiloxane. The composition is shelf stable at C room temperature and cures when heated. The composition and method are useful for preparing polyorganosiloxane products such as coatings, adhesives, elastomers, and foams.

Abstract: A composition contains a phosphonium catalyst, a polyorganohydrogensiloxane, and a hydrocarbonoxy-functional organosilicon compound. The composition is curable in a method including heating. The composition and method are useful for preparing polyorganosiloxane products such as coatings, adhesives, elastomers, and foams.

Abstract: A composition contains a phosphonium catalyst and a polyorganohydrogensiloxane. The composition is curable in a method including heating. The composition and method are useful for preparing polyorganosiloxane products such as coatings, adhesives, elastomers, and foams.

Abstract: A vinylester-functional organosilicon compound is prepared. The vinylester-functional organosilicon compound can be prepared by a process including hydroformylation of an alkenyl-functional organosilicon compound to produce an aldehyde-functional organosilicon compound, oxidation of the aldehyde-functional organosilicon compound to produce a carboxy-functional organosilicon compound, and transvinylation of the carboxy-functional organosilicon compound to produce the vinylester-functional organosilicon compound.

Abstract: An organosilicon compound with carboxy-functional groups is prepared. An oxidation process in which an aldehyde-functional organosilicon compound and an oxygen source are combined produces the carboxy-functional organosilicon compound.