Gelest Technologies Inc.
|Gelest Technologies Inc. Patent applications|
|Patent application number||Title||Published|
|20140275574||PENDANT DIPODAL SILANES HAVING A DISILAPROPYL TERMINUS - 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.||09-18-2014|
|20140275406||METHOD FOR PRODUCING SILICONE STEP-GROWTH ELASTOMERS FROM DUAL FUNCTIONAL SILOXANES - A convenient, practical method for forming elastomers from dual functional siloxanes that cure by a step-growth mechanism is provided. The method involves preparing a first mixture containing a first telechelic siloxane and a hydrosilylation catalyst; preparing a second mixture containing a second telechelic siloxane and a dual functional siloxane having two different polymer termini; and reacting the first mixture with the second mixture to produce the siloxane elastomer. The first and second mixtures may be stored separately until time of use.||09-18-2014|
|20140046017||SILICON COMPOUNDS DERIVED FROM FURFURYL ALCOHOLS AND METHODS OF PREPARATION - 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.||02-13-2014|
|20130274497||LOW MOLECULAR WEIGHT CARBOSILANES, PRECURSORS THEREOF, AND METHODS OF PREPARATION - 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.||10-17-2013|
|20130041098||DUAL FUNCTIONAL LINEAR SILOXANES, STEP-GROWTH POLYMERS DERIVED THEREFROM, AND METHODS OF PREPARATION THEREOF - 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 Pt||02-14-2013|
|20120226002||SILICON COMPOUNDS DERIVED FROM FURFURYL ALCOHOLS AND METHODS OF PREPARATION - 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.||09-06-2012|
|20120215019||SILICONES DERIVED FROM 2-PROPENYL FUNCTIONAL CYCLIC TERPENES AND METHODS OF PREPARATION - 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.||08-23-2012|
|20120076840||Alkoxysilane Derivatives of N-Acyl Amino Acids, N-Acyl Dipeptides, and N-Acyl Tripeptides, and Particles and Stable Oil-in-Water Formulations Using the Same - 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.||03-29-2012|
|20120071678||TRIHYDRIDOSILYL-TERMINATED POLYSILANES AND METHODS OF PREPARATION - 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.||03-22-2012|
|20100280266||Fixed-Bed Hydrosilylation Catalyst Complexes and Related Methods - 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):||11-04-2010|
|20100105817||Silanes with Embedded Hydrophilicity, Dispersible Particles Derived Therefrom and Related Methods - 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.||04-29-2010|
Patent applications by Gelest Technologies Inc.