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7935842 |
Hydrolysis resistant organomodified trisiloxane surfactants
Three types of trisiloxane surfactants having the basic formula: MDM′ are described wherein the substituents on the differing M and M′ groups in conjunction with a pendant polyalkylene oxide sub...
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7834120 |
Monofunctional monomer having cage oligosiloxane structure and method of making
A novel monofunctional monomer having a cage oligosiloxane structure is represented by formula (1) wherein X is a polymerizable oxygen-containing C1-C40 group, R1 is a C1-C20 saturated hydrocarbon...
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7732546 |
Use of silylated sulfonate monomers to improve contact lens wettability
The present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices. More particularly, the present invention relates to certain hydrophilic monomers...
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7332620 |
Process for the preparation of silicone oils carrying a group comprising at least one hydrocarbon-comprising ring in which is included an oxygen atom
Process for the preparation of a functionalized silicone oil by hydrosilylation of synthons in the presence of at least one organohydrosilicon compound, characterized in that: (1) the synthons...
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7300594 |
Process for purifying a lipophilic fluid by modifying the contaminants
A process for purifying a lipophilic fluid employing a functionalized fabric treating agent. The functionalized fabric treating agent is capable of delivering fabric treating benefits in a...
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7300593 |
Process for purifying a lipophilic fluid
A process for purifying dry cleaning solvents from a mixture containing used dry cleaning solvents and contaminants, such as laundry soils, fabric treating agents.
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7192684 |
Polymerizable silicon-containing compound, manufacturing method, polymer, resist composition and patterning process
Polymerizable silicon-containing compounds of formula (1) wherein R1 is hydrogen, halogen or monovalent organic group are polymerized into polymers. A resist composition comprising the polymer as a...
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7132294 |
Functionalized small molecules for use in chemical sensors
The invention provides a device for selective molecular recognition, the device comprising a sensing portion, wherein said sensing portion includes a substrate having coated thereon a layer...
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7132558 |
Silicone vitamin esters
The invention discloses novel series of silicone esters, which are useful as antioxidants on skin. The products are produced using for a variety of hydroxyl containing actives such as vitamin A...
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7122692 |
Process for the preparation of organosilylated carboxylate monomers, and their use in antifouling coatings
Process for the preparation of organosilylated carboxylate monomers comprising the step of reacting an acyloxysilane with an unsaturated carboxylic acid, the monomers and their use as comonomer...
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6943264 |
Preparation of branched siloxane
By reacting a branched siloxane compound of formula (2) containing compounds of formula (1) as an impurity with a disiloxane compound of formula (3) in the presence of an acid compound, there is...
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6875881 |
Preparation of branched tetrasiloxane
A branched tetrasiloxane is prepared by preforming a liquid mixture of a disiloxane compound, an alcohol and an acid catalyst, adding a trialkoxysilane compound to the mixture for reaction, and...
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6808826 |
Blue electroluminescence compound for an organic electroluminescence device and the organic electroluminescence device using the same
A blue electroluminescence compound for an electroluminescence display device comprising a spirobifluorene or triarylsilylphenyl group and a display device using such a blue electroluminescence...
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6753438 |
Process for the condensation of compounds having silicon bonded hydroxy or alkoxy groups
The specification describes preparation of materials comprising selected boron anions and processes using them as catalysts for condensation reaction of compounds having silicon-bonded hydroxy or...
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6737538 |
Purification of silicone oil
An unpurified silicone oil is treated with fibrous activated carbon, yielding a silicone oil of high purity, which will find use in the electric and electronic industry and as cosmetics.
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6548690 |
Porous polymethylsilsesquioxane with adsorbent properties
The present application describes a porous polymethylsilsesquioxane (PMS) having a specific surface area between approximately 50 m2/g and 500 m2/g, a pore volume between approximately 0.1 cm3/g...
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6414175 |
Innovative siloxane block copolymers with rigid spacers and their use
The invention relates to block copolymers of the general average formula with siloxane blocks which are linked via rigid spacers, and to their use as surface-active agents.
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6368359 |
Process for stabilization of dry cleaning solutions
A method for stabilizing silicone dry cleaning solvents that may contain an undesirable basic impurity capable of causing cyclic siloxane formation, comprising contacting the silicone solvent with...
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6214961 |
Method of producing branched silicone oil
A method of producing a branched silicone oil which comprises mixing 100 parts by weight of an organopolysiloxane represented by the following formula (I) and/or an organopolysiloxane represented...
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6211323 |
High molecular weight alkylmethyl-alkylaryl siloxane terpolymers having low SiH content and methods for their preparation
The present invention relates to triorganosiloxy-endblocked poly(methyl(C6-C40alkyl)siloxane)-poly(methyl(aralkyl)siloxa
ne)-poly(methy l(C2-C4alkyl)siloxane) terpolymers. This invention also...
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6143912 |
Process for preparing methylhydrogenpolysiloxanes having trimethylsilyl end groups
A process for preparing methylhydrogenpolysiloxanes having trimethylsilyl end groups wherein, in a first step, methyldichlorosilane and trimethylchlorosilane are reacted with at most 0.5 mol of...
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6001140 |
Diesel fuel and lubricating oil antifoams and methods of use
The present invention relates to diesel fuel and lubrication oil defoaming agents, and crude oil demulsifiers, as well as methods for using same. In particular, the defoaming agents and...
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5929186 |
Method for making silicone copolymers
A release agent composition for use in an electrophotographic process is disclosed. This composition includes a specifically-defined heat-stable silicone oil-silicone wax random copolymer. The...
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5861524 |
Oligomeric fluoroalkylsiloxanes as oil spreading agents
Oligomeric fluoroalkylsiloxanes corresponding to the formula: ##STR1## wherein x is 0 to 3, y is 0, 1, or 2; z is 0 or 1; x+y>0, and R has the formula --Ca H2a --Ob --Cd H2c --Cd F2d+1 in which a...
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5834613 |
Perhalogenated polyorganosiloxanes and the processes for their preparation
Chemically stable, perfluorinated, linear or cyclic polyorganosiloxanes (POS), and a process for the preparation thereof. Antifoams, agents for lowering surface tension, dirt repellents,...
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5830486 |
Cosmetic
A cosmetic which contains perfluoroalkyl denatured methylphenyl polysiloxane with a structure represented by the following general formula (I): ##STR1## where l, m and n denote average numbers...
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5783718 |
Process for the preparation of polyorganosiloxanes by hydrolysis of organohalosilanes
The invention relates to a process for the preparation of polyorganosiloxanes by hydrolysis of organohalosilanes of formula (I) Ra R1b SiXc, wherein R and R1 identical or different, are an hydrogen...
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5688888 |
Peralkylated phosphazene base-catalyzed silanol condensation method
Organopolysiloxane oils and gums are produced by the condensation of silanol-terminated organosiloxane in the presence of an effective amount of a peralkylated phosphazene base as a catalyst and at...
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5679822 |
High purity branched phenylsiloxane fluids
The invention provides high purity branched phenylsilsesquioxane containing fluids of the general formula Me3 SiO--(Me3 SiOPhSiO)x --SiMe3, wherein Me is methyl, Ph is phenyl, and x is 1 to 6, and...
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5670688 |
Process for the industrial manufacture of a cycloalkylsilane or polyorganosiloxane
This invention relates to a process for the manufacture of a silane or polyorganosiloxane containing a cycloalkyl substituent by hydrogenation of a silane or polyorganosiloxane containing at least...
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5670686 |
Alkyl substituted siloxanes and alkyl substituted polyether fluids
New alkyl substituted siloxanes and alkyl substituted polyether fluids are prepared by reacting an unsaturated alkyl, a aralkyl or ether with alkylhydrido siloxanes such as (i) comonomers...
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5616673 |
Process for production of low viscosity low silanol content silicone fluids
Use of a certain class of acid washed clays enables a fixed bed process for the production of very low viscosity low silanol content silicone fluids to be produced in a fixed bed single reactor...
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RE35462 |
Silylated benzoic acid derivatives
The present invention relates to compounds of the formula ##STR1## in which Z is a halogen atom, a cyano group or a hydroxyl group, n is 0, 1 or 2, R' is a radical of the formula R"'--[Si(R*)2 ]x...
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5605997 |
Process for producing organopolysiloxanes
A process of producing an organopolysiloxane, comprising hydrolyzing and condensing an alkoxysilane having the formula: Rm Si(OR1)4-mwherein R is a monovalent hydrocarbon group, R1 is an alkyl...
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5565540 |
Method for the preparation of SiOH-containing organosiloxane oligomer
The present invention pertains to a method for the preparation of organosiloxane oligomer with the general formula R13 SiO(R22 SiO)n Hwhere each R1 and R2 are independently monovalent hydrocarbon...
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5547604 |
Liquid crystal siloxanes
Siloxane compounds having a smectic liquid crystal phase and the general formula ##STR1## wherein each R=alkyl, alkenyl or aryl, Q represents a monovalent group, for example alkyl, --(CH2)n OM', a...
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5542960 |
Efficient diesel fuel antifoams of low silicon content
The present invention is a class of organosilicone terpolymers which may be used to abate the foaming of diesel fuel at silicon levels below 1.2 ppm. Said silicone terpolymers are modified alkyl...
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5527935 |
Organopolysiloxanes having bifunctional terminal siloxane units
The present invention relates to the organopolysiloxanes having the formula [R1 Si(OSiR22 X)2 OSiR22 O1/2 ]a [R3 SiO1/2 ]b [R2 SiO]c [RSiO3/2 ]d [SiO2 ]e (1),where R is optionally substituted C1 -...
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5521238 |
Oranopolysiloxane emulsions and fibers coated therewith
The present invention relates to an organopolysiloxane emulsion composition comprising a hydroxy or alkoxy-endblocked diorganopolysiloxane, an alkoxy-group containing organosilicon compound,...
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5508369 |
Organopolysiloxanes having a silanol group and process of making them
Novel organopolysiloxanes having one silanol group within a molecule and the method for manufacturing them at high purity and high yield. The organopolysiloxanes having a silanol group are...
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5493041 |
Lightly crosslinked poly(n-alkylmethylsiloxanes) and methods of producing same
The crosslinking and simultaneous alkylation of poly(hydridomethylsiloxanes) form crosslinked siloxanes having n-alkylmethyl groups. Without changing the chain length of the...
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5486635 |
Method for preparing diorganopolysiloxane having a functional group at only one end of the molecular chain
There is disclosed a method for preparing a diorganopolysiloxane having a functional group at only one end of the molecular chain and having the formula R(R2 SiO)p Bwherein R is an independently...
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5478546 |
Process for preparing powder of silicon compound
An alkoxysilane is brought into a hydrolysis-polycondensation reaction using a fluoride salt, e.g. NaF, or a fluorine-containing silicon compound having an Si--F bond in its molecule, e.g....
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5457220 |
Process for the production of crosslinked siloxanes by disproportionation
The present invention relates to a new silicone cure system. More particularly, the present invention discloses that a siloxane system containing sufficiently high levels of T or Q species in...
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5436358 |
2-(aryl)propylalkylpolysiloxane type silicone fluids and methods of making them
The present invention relates to novel cyclic or linear 2-(aryl)propylalkylpolysiloxane type silicone fluids as represented by the formula I and their preparation methods by hydrolyzing mixtures of...
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5436360 |
Allylalkylpolysiloxane type silicone fluids and methods of making them
The present invention relates to novel cyclic or linear allylpolysiloxane type silicone fluids having allylalkylsiloxy and diorganosiloxy groups as represented by the formula I and their...
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5416233 |
Preparation of vinylsilane-benzocyclobutenes
This invention relates to a novel process for preparing vinylsilane-BCBs (vinylsilane-benzocyclobutenes) comprising reacting a hydrosilating reagent with an acetylene-BCB in the presence of a...
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5359111 |
Method for controlling hydrosilylation in a reaction mixture
This invention discloses a method of controlling hydrosilylations in a reaction mixture by controlling the solution concentration of oxygen in the reaction mixture, relative to any platinum present...
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5331077 |
Alkenyl group-containing organo(poly)siloxanes
Organo(poly)siloxanes composed of units of the formula [Ra R13-a SiO1/2 ], [Rb R12-b SiO2/2 ] and [R1 SiO3/2 ], in which R can be the same or different and represents a monovalent organic radical...
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5312947 |
Siloxane purification
Siloxanes are purified by contacting siloxanes containing ionic crystals as an impurity with a polar solvent, evaporating the solvent, thereby increasing the mean particle size of the ion crystals,...
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