Abstract: Pendant dipodal silanes having formula (I) and methods for their synthesis are provided. In formula (I), R is an organic radical other than methyl and X may be a halogen, an alkoxy group, an acetoxy group, or a dialkylamino group. Films, adhesives, and composites formed from the inventive dipodal silanes generally demonstrate significantly greater hydrolytic resistance and film-forming ability than conventional silanes.

Abstract: Novel silicon compounds containing a siloxane or silane moiety and at least one moiety derived from a furfuryl alcohol, and methods for their synthesis, are provided. The novel compounds may be used as surface modifying agents, surfactants, defoamers, and as monomers for silicone polymerization.

Abstract: Novel silicone compounds containing a siloxane moiety and at least one terpenyl moiety, such as limonenyl or valencenyl, and methods for their synthesis, are provided. The novel compounds are appropriate for incorporation into cosmetic formulations due to their low aroma, resistance to deterioration, and favorable solubility properties.

Abstract: Novel silicon compounds containing a siloxane or silane moiety and at least one moiety derived from a furfuryl alcohol, and methods for their synthesis, are provided. The novel compounds may be used as surface modifying agents, surfactants, defoamers, and as monomers for silicone polymerization.

Abstract: Novel trihydridosilyl-terminated polysilanes and methods for their synthesis, which are applicable to other polysilanes, are provided. The synthetic methods provide for facile preparation of products with minimal handling of pyrophoric intermediates and byproducts. The novel compounds contain at least three silicon-silicon bonds and at least one terminal silicon atom having three hydrogen substituents.

Abstract: The invention includes a fixed-bed catalyst complex that includes (i) a metal carbene catalyst, wherein the metal is platinum, and (ii) a catalyst support that includes one or more of silica, alumina and/or glass. The invention provides a fixed-bed catalyst complex that includes a catalyst complex including a carbene chosen from those represented by at least one of Formulae (I), (II), (III), and (IV): Where the vales of X and R1 to R7 are specifically defined. The complex also includes a catalyst support that comprises silica, related reaction products, and related reaction systems.

Abstract: A series of silicon compounds are provided, which are excellent precursors to small carbosilanes, such as 1,3,5-trisilapentane, 2,4,6-trisilaheptane, tris(silylmethyl)silane and tetrakis(silylmethyl)silane. A method of preparing a carbosilane involves forming a Grignard, lithium, or metallic reagent from a halomethyltrialkoxysilane, reacting the Grignard, lithium, or metallic reagent with a dihalodihydridosilane, a trihalohydridosilane, a tetrahalosilane, a dialkoxydihydridosilane, a trialkoxyhydridosilane, or a tetraalkoxysilane to yield a carbosilane precursor, and reducing the precursor to form the carbosilane.

Abstract: Low molecular weight siloxane materials having one functional group are provided which have reduced tendency to form phase separated domains after polymerization. Two classes of siloxane materials are included: (1) symmetric siloxane macromonomers containing at least two monomer termini and one polymerizable functional group which is equidistant from the termini, and (2) assymetric siloxane macromonomers having at least one polymerizable functional group terminus and at least one oxygen-containing polar hydrophilic terminus selected from the group consisting of hydroxyl, ether, and polyether. Symmetric siloxane macromonomers having hydroxyl termini are useful for forming biocompatible materials, such as for contact lenses, tissue regeneration scaffold polymers, and coatings to reduce non-specific binding of proteins.

Abstract: Linear siloxane polymers having low viscosities, precise molecular weights and two distinct polymer termini are provided. Preferred viscosities are greater than 5 cSt and less than 20,000 cSt, and the preferred functionalities at the polymer termini are one hydrogen and one vinyl group, each attached to a silicon atom. Methods for producing such siloxane polymers are also described In the presence of catalysts, such as Pt0 complexes, these siloxanes undergo step-growth polymerization to form elastomers at temperatures below 150° C.

Abstract: Novel silicon compounds containing a siloxane or silane moiety and at least one moiety derived from a furfuryl alcohol, and methods for their synthesis, are provided. The novel compounds may be used as surface modifying agents, surfactants, defoamers, and as monomers for silicone polymerization.

Abstract: Novel silicone compounds containing a siloxane moiety and at least one terpenyl moiety, such as limonenyl or valencenyl, and methods for their synthesis, are provided. The novel compounds are appropriate for incorporation into cosmetic formulations due to their low aroma, resistance to deterioration, and favorable solubility properties.

Abstract: Hydrophilic N-acylamino acid, N-acyl dipeptide, and N-acyl tripeptide substituted silanes are prepared which can be utilized as reactive surface treatments for particles of pigments, minerals, and fillers. These treated particles form stable dispersions in the aqueous phase of oil-in-water mixtures that are suitable for cosmetic applications. The treated particles may also be used in pressed powder and color cosmetic formulations.

Abstract: Novel trihydridosilyl-terminated polysilanes and methods for their synthesis, which are applicable to other polysilanes, are provided. The synthetic methods provide for facile preparation of products with minimal handling of pyrophoric intermediates and byproducts. The novel compounds contain at least three silicon-silicon bonds and at least one terminal silicon atom having three hydrogen substituents.

Abstract: Colored silicone polymers and elastomers are described herein wherein the colorants used in the composition provide tint to the polymer, but are capable of retaining transparency of the substrate if desired. The colorants include curcumin and/or a derivative thereof.

Abstract: Low molecular weight siloxane materials having one functional group are provided which have reduced tendency to form phase separated domains after polymerization. Two classes of siloxane materials are included: (1) symmetric siloxane macromonomers containing at least two monomer termini and one polymerizable functional group which is equidistant from the termini, and (2) assymetric siloxane macromonomers having at least one polymerizable functional group terminus and at least one oxygen-containing polar hydrophilic terminus selected from the group consisting of hydroxyl, ether, and polyether. Symmetric siloxane macromonomers having hydroxyl termini are useful for forming biocompatible materials, such as for contact lenses, tissue regeneration scaffold polymers, and coatings to reduce non-specific binding of proteins.

Abstract: The invention includes a fixed-bed catalyst complex that includes (i) a metal carbene catalyst, wherein the metal is platinum, and (ii) a catalyst support that includes one or more of silica, alumina and/or glass. The invention provides a fixed-bed catalyst complex that includes a catalyst complex including a carbene chosen from those represented by at least one of Formulae (I), (II), (III), and (IV): Where the vales of X and R1 to R7 are specifically defined. The complex also includes a catalyst support that comprises silica, related reaction products, and related reaction systems.

Abstract: Low molecular weight siloxane materials having one functional group are provided which have reduced tendency to form phase separated domains after polymerization. Two classes of siloxane materials are included: (1) symmetric siloxane macromonomers containing at least two monomer termini and one polymerizable functional group which is equidistant from the termini, and (2) assymetric siloxane macromonomers having at least one polymerizable functional group terminus and at least one oxygen-containing polar hydrophilic terminus selected from the group consisting of hydroxyl, ether, and polyether. Symmetric siloxane macromonomers having hydroxyl termini are useful for forming biocompatible materials, such as for contact lenses, tissue regeneration scaffold polymers, and coatings to reduce non-specific binding of proteins.

Abstract: Silicon-based tocopherol derivatives are provided, as well as methods for making the same, in which the derivatives have a tocopherol molecule having a silicon-based group. The derivatives are useful in cosmetic compositions, have antioxidant properties, enhance solubility and compatibility in cosmetic formulations having silicon-based materials within the compositions.

Abstract: The invention provides a silane compound that includes a hydrophobic group and a silane ester group linked by a hydrophilic group for use as a surface treatment to an inorganic material, such as a pigment, the silane including a hydrophobic group and a silane ester group linked by a hydrophilic group. The invention includes a coated particle including an inorganic material coated with the silane compound(s) and methods of improving the wettability and/or dispersibility of an inorganic material such as a pigment, wherein the method comprises depositing the silane compounds on the surface of a pigment.

Abstract: Low molecular weight siloxane materials having one functional group are provided which have reduced tendency to form phase separated domains after polymerization. Two classes of siloxane materials are included: (1) symmetric siloxane macromonomers containing at least two monomer termini and one polymerizable functional group which is equidistant from the termini, and (2) assymetric siloxane macromonomers having at least one polymerizable functional group terminus and at least one oxygen-containing polar hydrophilic terminus selected from the group consisting of hydroxyl, ether, and polyether. Symmetric siloxane macromonomers having hydroxyl termini are useful for forming biocompatible materials, such as for contact lenses, tissue regeneration scaffold polymers, and coatings to reduce non-specific binding of proteins.