The Agent Contains Organic Compound Containing Silicon Patents (Class 516/23)
  • Patent number: 10336776
    Abstract: This patent relates to invert water in oil (w/o) and water in silicone (w/si) emulsions made using non PEG/PPG containing polyhydric silicone emulsifiers. The polyhydric silicone polymers are based on allyl trimethylolpropane and pentaerythritol modified organic groups and do not contain any PEG and/or PPG groups (also known as polyethylene glycol and polypropylene glycols, polyethers, polyglycols,). These emulsions show improved emulsification stability and provide a light feel compared to emulsions made with other silicone based PEG/PPG compounds which are commonly used in the field.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 2, 2019
    Assignee: SILTECH CORP
    Inventors: Rick Vrckovnik, Fenbao David Zhang, Mark Riddle
  • Patent number: 9574109
    Abstract: Provided in various embodiments are surface-modified hydrogels and hydrogel microparticles, methods for their preparation, and uses thereof for delivery of personal care and healthcare active ingredients, and agricultural active ingredients. In some embodiments, such hydrogels and hydrogel microparticles comprise surface coatings that are resistant to solvent washing and can act as barriers for the migration of water and/or water-compatible alcohols and actives soluble therein.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: February 21, 2017
    Assignee: Dow Corning Corporation
    Inventors: Dongchan Ahn, James Thompson
  • Patent number: 9089138
    Abstract: Methods of applications of organosilanes optionally having a nonhydrolyzable organic group, but having one or more hydrolyzable groups, with a polyol containing at least three hydroxy groups, where any two of the hydroxy groups are separated by at least three intervening atoms by aerosolization of droplets between 0.5-8 microns are disclosed and an improved formulation comprising adding a nonionic wetting agent are disclosed. An improved aerosolization application technique and the improved formulation provide for smaller droplet size and better coverage of substrates to which the organosilanes are applied. The improved formulation has increased affinity, reduces surface tension and therefore can covalently bond more quickly. A method of treating a substrate, and the treated substrate so formed, by contacting the substrate with the improved formulation for a period of time sufficient for treatment of the substrate are disclosed.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 28, 2015
    Inventors: Thomas L. Higgins, Theodore Shlisky
  • Patent number: 9072717
    Abstract: A composition containing at least one alpha glucosidase inhibitor, and a method for ameliorating the adverse effects of aging and sun damage on keratinous surfaces such as skin by treating with a composition containing at least one alpha glucosidase inhibitor; as well as regimens and kits for treating skin.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: July 7, 2015
    Assignee: ELC Management LLC
    Inventors: Lieve Declercq, Daniel H. Maes, Hugo A. Corstjens
  • Patent number: 9050474
    Abstract: Provided are cosmetic compositions comprising acrylate film forming polymers and an surface-treated colorants which exhibit an improved or synergistic reduction in their propensity to transfer or rub of during wear.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: June 9, 2015
    Assignee: Avon Products, Inc
    Inventor: Giovana A. Sandstrom
  • Patent number: 8841400
    Abstract: The invention relates to organomodified additives, emulsifiers, dispersants and/or active nourishing ingredients present in the silicon part of branched siloxane block copolymers, to the use thereof, in particular for producing cosmetic, dermatological or pharmaceutical formulations as well as care and cleansing products, and to the preparations as such. Specifically the invention relates to branched polysiloxanes having trifunctional T units as well as polyether groups, alkyl radicals of more than 7 carbon atoms or multi-hydroxy functional radicals.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: September 23, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Frauke Henning, Juergen Meyer, Christian Hartung, Michael Ferenz, Wilfried Knott, Sascha Herrwerth
  • Patent number: 8815958
    Abstract: A skin cosmetic in which the emulsion stability can be ensured by adding a volatile hydrocarbon oil to a water-in-oil-type emulsion composition containing a non-volatile silicone oil, and which has an excellent non-oily sensation upon application. Specifically disclosed is a water-in-oil-type emulsion skin cosmetic which is characterized by comprising (A) 3 to 25% mass of a volatile hydrocarbon oil, (B) 0.1 to 15% by mass of a non-volatile silicone oil, (C) 0.1 to 1% by mass of a polyethylene glycol mono- or di-isostearate having 4 to 12 oxyethylene groups, (D) 0.1 to 5% by mass of a polyoxyethylene-polydimethylsiloxyethyl-dimethicone copolymer, and (E) an organically-modified clay mineral.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: August 26, 2014
    Assignee: Shiseido Company, Ltd.
    Inventors: Kazutaka Sasaki, Takayuki Omura
  • Patent number: 8653147
    Abstract: The present invention discloses an inorganic/organic mixed component (I/O) dispersant and applications thereof, which is primarily applied to dispersing nanoparticles of metal oxides. The I/O dispersant of the present invention can be a composite of inorganic clay and an organic surfactant, a composite of inorganic clay and polyoxyalkylene-amine, or a composite of inorganic clay, polyisobutylene succinic anhydride (PIB-SA) and hydrochloric acid salt or tetraalkyl quaternary salt of polyoxyalkylene-amine, or fatty amines. By mixing with the I/O dispersant of the present invention, nanoparticles of a metal oxide can be uniformly dispersed without aggregation particularly at high solid content. The dispersion has a lower viscosity and is relatively stable in storage even at high temperature.
    Type: Grant
    Filed: November 20, 2011
    Date of Patent: February 18, 2014
    Assignee: National Taiwan University
    Inventors: Jiang-Jen Lin, Yen-Chi Hsu, Ming-Li Chiang, Chien-Chia Chu
  • Patent number: 8586639
    Abstract: Oil-in-water emulsions contain an oil dispersed phase, an aqueous continuous phase, and partly silylated pyrogenic silica having a content of silanol groups of 1.7 to 0.9 SiOH/nm2 wherein 50% to 95% of silanol groups of the starting silica are silylated, present at the interface between the dispersed phase and the continuous phase and an electrolyte content in the aqueous phase which establishes the viscosity of the emulsion.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: November 19, 2013
    Assignee: Wacker Chemie AG
    Inventor: Torsten Gottschalk-Gaudig
  • Patent number: 8357724
    Abstract: The invention concerns a process for controlling the stability or the droplets sized of simple water-in-oil emulsions, wherein a di-block or tri-block copolymer is used. A block is a hydrophilic block, the other block is a hydrophobic block. The invention concerns also a stabilized water-in-oil emulsion.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: January 22, 2013
    Assignee: Rhodia Chimie
    Inventors: Sophie Deroo, Mikel Morvan
  • Patent number: 8344033
    Abstract: The invention relates to water-in-oil (W/O) or oil-in-water (O/W) emulsions containing an oil phase of at least one water-insoluble constituent; an aqueous phase; pyrogenic silica at the oil-water interface, the pyrogenic silica partially silylated such that non-silylated surface silanol groups remaining are between 95% and 5% of initial silanol groups, the equivalent of 1.7 to 0.1 surface SiOH groups per nm2, a surface energy gamma-s-D of 30 to 80 mJ/m2, and a specific BET surface area between 30 and 500 m2/g; and optionally other substances, such as pigments or preservatives. The inventive emulsions have a mean particle size of the dispersed phase, of between 0.5 ?m and 500 ?m, and are of low viscosity.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: January 1, 2013
    Assignee: Wacker Chemie AG
    Inventors: Torsten Gottschalk-Gaudig, Herbert Barthel, Bernard Paul Binks, Tommy S. Horozov
  • Publication number: 20120289649
    Abstract: The invention concerns polysiloxane compounds as W/O-emulsifiers, in textile softeners, antifoams, foam stabilizers and agriculture chemicals, in particular as W/O-emulsifiers for cosmetic uses.
    Type: Application
    Filed: November 24, 2010
    Publication date: November 15, 2012
    Applicant: Momentive-Performance Materials GmbH
    Inventors: Roland Wagner, Walter Simon, Martin Kropfgans, Sabine Nienstedt, Albert Schnering, Katharina Streicher, Karl-Heinz Sockel, Sebastian Maass
  • Patent number: 8283385
    Abstract: Reversible switchable surfactants are provided. A surfactant is the salt of an amidine or guanidine: having at least one R group that is a hydrophobic moiety selected from the group consisting of higher aliphatic moiety, higher siloxyl moiety, higher aliphatic/siloxyl moiety, aliphatic/aryl moiety, siloxyl/aryl moiety, and aliphatic/siloxyl/aryl moiety. The other R groups are smaller moieties such as H, C1 to C4 aliphatic or the like. The surfactant is turned on by a gas that liberates hydrogen ions, such as, for example, carbon dioxide, which liberates hydrogen ions in the presence of water. The surfactant is turned off by exposure to a flushing gas and/or heating. When “on” the surfactants are useful to stabilize emulsions, and when “off” they are useful to separate immiscible liquids or a liquid and a solid. The surfactants find uses in polymerization and in the oil industry.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: October 9, 2012
    Assignee: Queen's University at Kingston
    Inventor: Philip G. Jessop
  • Patent number: 7972705
    Abstract: Silicone coating on various soft supports, for instance textiles, made of synthetic polymers (polyamide, polyester) provides an efficient method for producing water impermeable and water permeable coatings, on soft supports, said method enabling to improve permeability to water vapor of the silicones while preserving impermeability to water. The inventive method enabling this consists mainly in: coating one of the surfaces of the support with a film formed by an invert water-in-oil silicone emulsion comprising a continuous oily silicone phase phi s, crosslinkable into elastomer and including a polyorganosiloxane (POS) A crosslinkable by addition polymerization, by cationic process or free-radical process; optionally a crosslinking organosilicon compound B; and optionally at least a catalyst C; an aqueous phase phi a; a stabilizing agent; and in ensuring crosslinking of the silicone phase phi s and elimination of water.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: July 5, 2011
    Assignee: Rhodia Chimie
    Inventors: Paul Branlard, Martial Deruelle, Yves Giraud, Nadia Martin
  • Patent number: 7932220
    Abstract: A composition for use in an oil chamber of a tool includes a hydraulic oil; and a surfactant, wherein the surfactant is present at an amount sufficient to form micelles in the hydraulic oil. The composition may further include an amphiphilic copolymer. A method includes providing a hydraulic fluid composition comprising a hydraulic oil and a surfactant capable of forming micelles in the hydraulic oil; and filling a hydraulic chamber in the tool with the hydraulic fluid composition. The hydraulic fluid composition may further include an amphiphilic copolymer.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: April 26, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Alexander Zazovsky, Jian Zhou, Christopher Del Campo, Golchehreh Salamat, Diankui Fu, Jese C. Lee
  • Patent number: 7915203
    Abstract: A new class of secondary emulsifying agents for use in inverted mud and other inverted system is disclosed and method for making and using same.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: March 29, 2011
    Assignee: Clearwater International, LLC
    Inventors: Olusegun Matthew Falana, Arthur T. Gilmer, Edward Marshall
  • Patent number: 7872053
    Abstract: The present invention relates to new organodisilanes or carbodisilanes, a process for manufacturing the same and their use, in particular, as surface active agents, especially as spreading agents.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: January 18, 2011
    Assignee: Momentive Performance Materials GmbH & Co., KG
    Inventors: Roland Wagner, Karl-Heinz Stachulla, Karl-Heinz Sockel, Mark Leatherman, George Policello, Wenqing Peng, Zijun Xia
  • Patent number: 7652072
    Abstract: Compositions comprising an asymmetric disiloxane surfactant composition comprising a silicone composition comprising a silicone having the formula: MM? where M or M? comprises an alkylpolyalkyleneoxide bearing substituent selected from the group consisting of: R13(C2H4O)a(C3H6O)b(C4H8O)cR14 and R12SiR5R6(R13(C2H4O)a(C3H6O)b(C4H8O)cR14) that exhibit resistance to hydrolysis over a wide pH range.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: January 26, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
  • Patent number: 7648765
    Abstract: A dispersion of carbon nanoparticles is prepared by monodispersing carbon nanoparticles in water droplets of a reverse micelle solution in which the water droplets are coated with amphiphilic molecules and dispersed in an organic solvent. In a method of preparing the dispersion of carbon nanoparticles, carbon nanoparticles and a monodispersion function material, e.g., ammonia, for imparting a polarity to surfaces of the carbon nanoparticles are added to the reverse micelle solution. The solution is then stirred, so that the carbon nanoparticles whose surfaces have the polarity are monodispersed in the water droplets of the reverse micelle solution. Further, a metal alkoxide is added to the solution and then stirring them, so that the surfaces of the carbon nanoparticles are coated with oxide of the metal.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: January 19, 2010
    Assignee: Futaba Corporation
    Inventors: Hisamitsu Takahashi, Fumiaki Kataoka, Shigeo Itoh
  • Patent number: 7411007
    Abstract: A composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj where M=R1R2R3SiO1/2; MH=R4R5HSiO1/2; ME=R6R7RESiO1/2; D=R8R9SiO2/2; DH=R10HSiO2/2; DE=R11RESiO2/2; T=R12SiO3/2; TH=HSiO3/2; TE=RESiO3/2; and Q=SiO4/2; where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1; b+e+h>1; c+f+i>1; b+e+h>c+f+i. In a preferred embodiment the reaction product of the present invention is a polyether siloxane copolymer network.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: August 12, 2008
    Inventors: Michael Joseph O'Brien, Atchara Chaiyawat
  • Patent number: 7307104
    Abstract: The disclosed invention relates to a process for making an emulsion. The process comprises: flowing a first liquid through a process microchannel, the process microchannel having a wall with an apertured section; flowing a second liquid through the apertured section into the process microchannel in contact with the first liquid, the first liquid forming a continuous phase, the second liquid forming a discontinuous phase dispersed in the continuous phase.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: December 11, 2007
    Assignee: Velocys, Inc.
    Inventors: Dongming Qiu, Anna Lee Tonkovich, Laura J. Silva, Richard Q. Long, Barry L. Yang, Kristina Marie Trenkamp, Jennifer Anne Freeman
  • Patent number: 7279503
    Abstract: The invention relates to emulsions of the W/O (water/oil) type made using specific emulsifiers and oils selected from silicone oil, mineral oil and combinations thereof. Silicone emulsifier conforming to the following structure: wherein; a is an integer ranging from 2 to 10; b is an integer ranging from 2 to 10, such that b/a>or=1, but less than 2.5; c is (a+b) times x, wherein x is 1.5 to 2.5; d is an integer ranging from 6 to 12; are used to obtain the desired W/O (water/oil) type emulsion.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: October 9, 2007
    Assignee: Siltech LLC
    Inventors: Anthony J. O'Lenick, Jr., Richard O. Vrckovnik
  • Patent number: 7078046
    Abstract: Disclosed are electrostatically-sprayable topical compositions, more particularly topical emulsion compositions, and methods of treating the skin by electrostatic application of such compositions. In one aspect the composition comprises an insulating external phase comprising one or more insulating materials and a conductive internal phase comprising one or more conductive materials. The compositions preferably also contain one or more particulate materials to be deposited on the skin, e.g., pigments, inert absorbents and the like.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 18, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Elliot Rabe, Helen Shu Ying Yen, June Turkanis Brennock, Caroline Becque Martello
  • Patent number: 6667046
    Abstract: The present invention refers to water-in-silicone type cosmetic emulsion which comprises particulate solid cosmetic components and includes as emulsifying system an association of a primary emulsifier selected from the group comprising copoliols and a secondary emulsifier selected from lipophilic stearic acids, wherein such particulate solid cosmetic components have a maximum particle size and a degree of repellence among the particles and the environment in which they are dispersed sufficient to guarantee their stability in relation to the environment in which they are dispersed.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: December 23, 2003
    Assignee: Industria e Comercio de Cosmeticos Natura Ltda
    Inventors: Claudia Leo, Luciana Gandini
  • Patent number: 6509024
    Abstract: The first embodiment of the present invention provides a composition, which includes: an aqueous phase dispersed in an oily phase; wherein the oily phase includes at least one particle of a crosslinked solid organopolysiloxane elastomer having at least one oxyalkylene group, and wherein the aqueous phase includes at least one crosslinked and at least partially neutralized poly(2-acrylamido-2-methylpropanesulphonic acid) polymer. Other embodiments of the present invention provide methods of using the above-identified composition, compositions containing same, and a method of preparing water-in-oil emulsions.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: January 21, 2003
    Assignee: L'Oreal
    Inventor: Raluca Lorant
  • Patent number: 6440430
    Abstract: The present invention relates to a stable water-in-oil emulsion for cosmetic, pharmaceutical or hygiene use, comprising an aqueous phase and a fatty phase comprising a silicone oil, characterized in that it comprises at least one &agr;,&ohgr;-substituted oxyalkylenated silicone, the emulsion having a viscosity ranging from 100 cps to 200 poises, at 25° C. and at a shear rate of 200 s−1. The invention also relates to the compositions comprising such an emulsion, and to its applications in the cosmetics field.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: August 27, 2002
    Assignee: L'Oreal S.A.
    Inventors: Isabelle Bara, Patricia Lemann, Florence Tournilhac, Annick Collette, Jean-Christophe Simon
  • Patent number: 6426079
    Abstract: The present invention relates to a stable water-in-oil emulsion for cosmetic, pharmaceutical or hygiene use, comprising an aqueous phase and a fatty phase comprising a silicone oil, characterized in that it comprises an emulsifying system comprising at least one &agr;,&ohgr;-substituted oxyalkylenated silicone of formula (I): in which: R=—(CH2)pO—(C2H4O)x(C3H6O)yR1 where: R1 represents H, CH3 or CH2CH3, p is an integer ranging from 1 to 5, x ranges from 1 to 100 and y ranges from 1 to 50, it being possible for the units (C2H4O) and (C3H6O) to be distributed randomly or in blocks, the R2 radicals represent a C1-C3 alkyl radical or a phenyl radical, 5≦m≦300, and a co-surfactant chosen from the family of glycol mono- and/or diesters and glyceryl mono-, di- and/or triesters, and mixtures thereof. The invention also relates to a composition comprising the above emulsion, and to its applications in the cosmetics, pharmaceutical, dermatological or hygiene fields.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: July 30, 2002
    Assignee: L'Oreal
    Inventors: Isabelle Bara, Patricia Lemann, Florence Tournilhac, Annick Collette, Jean-Christophe Simon
  • Patent number: 6423303
    Abstract: Water-in-oil emulsions are disclosed that comprise (a) water; (b) from about 10 to 65% by weight of an oil; and (c) an emulsification system comprising a polysiloxane polyalkyl polyether copolymer and a phthalic anhydride derivative, substantially permanently maintaining the water and oil as an emulsion, the emulsification system and the emulsification system being substantially free from aluminum and zirconium salts, the emulsion being at a pH of from about 5 to 10.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: July 23, 2002
    Assignee: Stepan Company
    Inventors: Irma Ryklin, Branko Sajic
  • Patent number: 6391322
    Abstract: The present invention relates to a composition in the form of a cream composed of a water-in-oil emulsion, wherein it includes at least 25% by weight of an aqueous phase with respect to the total weight of the composition, at least one silicone emulsifier and at least 5% by weight of one or more waxes with respect to the total weight of the composition. The present invention also relates to the uses of the above composition in the cosmetics and dermatological fields, in particular in caring for, treating and/or making up the skin and/or mucous membranes and more particularly in treating wrinkles and/or fine lines of the skin and/or in treating dry skin. The invention also relates to a process for the preparation of the above composition, wherein at least one stage of the process is carried out using a mixer-extruder.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: May 21, 2002
    Assignee: L'Oreal
    Inventors: Veronique Roulier, Therese Daubige
  • Patent number: 6372830
    Abstract: Disclosed is a water-in-oil type silicone emulsion composition, which has excellent stability to temperature changes, particularly to those including low-temperature regions and which undergoes no separation of the oil or water phase, the composition comprising (A) a polyorgano-siloxane; (B) a polyorganosiloxane-polyoxyalkylene block copolymer of a specific structure having polyoxyalkylene chains at each terminal end of the polyorganosiloxane chain and as side chains thereof, the polyorganosiloxane chain having a polymerization degree of 300 to 600; and (C) water.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: April 16, 2002
    Assignee: General Electric Company
    Inventors: Yoshiyuki Sato, John A. Kilgour
  • Publication number: 20020037302
    Abstract: The invention relates to a composition in the form of a water-in-oil emulsion containing at least 80% aqueous phase, containing a specific dimethicone copolyol as emulsifier, and comprising an oily phase/emulsifier weight ratio of greater than or equal to 5. The water preferably represents at least 66% of the total weight of the composition. The composition characteristically has a viscosity, measured using a Rheomat 180 viscometer at a shear rate of 200 s−1 and at 25° C., ranging from 0.15 Pa·s (1.5 poises) to 20 Pa·s (200 poises). The composition according to the invention may have the appearance of a fluid or a cream and has specific rheological behavior: its shear rate changes over time, in particular when applied to the skin, where it “breaks” and promptly releases the aqueous phase, affording a great sensation of freshness. This composition may be used in particular in cosmetics and/or dermatology.
    Type: Application
    Filed: June 21, 2001
    Publication date: March 28, 2002
    Applicant: L'Oreal
    Inventor: Isabelle Afriat
  • Patent number: 6288129
    Abstract: The present invention provides a process for esterifying or transesterifying acrylic acid and/or methacrylic acid or acrylic esters and/or methacrylic esters with hydroxy-functional and/or polyoxyalkylene-modified siloxane derivatives of the general formula (I) wherein R1 through R8 and v, w, x, y, and z are as defined herein and the esterification or transesterification reaction is catalyzed by an enzyme.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: September 11, 2001
    Assignee: Th. Goldschmidt AG
    Inventors: Burghard Gruning, Geoffrey Hills, Wolfgang Josten, Dietmar Schaefer, Stefan Silber, Christian Weitemeyer
  • Patent number: 6221979
    Abstract: A new composition of matter is a blend of (i) a crosslinked elastomeric silicone polyether and (ii) a crosslinked elastomeric silicone containing alkyl groups having 3-40 carbon atoms. The new composition can be used in preparing water-in-oil emulsions, and clear solutions containing an oil(s) or an oil-soluble active ingredient(s).
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: April 24, 2001
    Assignee: Dow Corning Corporation
    Inventors: Zuchen Lin, William James Schulz, Jr., Janet Mary Smith
  • Patent number: 6156805
    Abstract: A method of stabilizing a water-in-oil emulsion, comprising the steps of:a) preparing a composition comprising oil, water, and a silane having bonds that hydrolyse and condense to form a cross-linked polymer, thereby creating a dispsersed aqueous phase in a continuous oil phase;b) allowing the silane to hydrolyse;c) allowing the hydrolysed silane to condense to form a crosslinked polymer at an interface between the oil and the aqueous phase, thereby encapsulating the dispersed aqueous phase.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: December 5, 2000
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip S. Smith, Julie A. Hibbert
  • Patent number: 6136917
    Abstract: The compositions of the present invention consist essentially of (I) a reaction product, (II) a nonaqueous liquid continuous phase, and (III) a moderately hydrophobic particulate stabilizing aid. Component (I) is prepared by heating a mixture of (i) a polyorganosiloxane fluid, (ii) a silicon compound, (iii) a finely divided filler and (iv) a catalytic amount of a compound for promoting the reaction of components (i) to (iii) at a temperature of C. to C. The compositions of the present invention can additionally contain (IV) at least one nonionic silicone surfactant, and (V) a nonreinforcing inorganic filler.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: October 24, 2000
    Assignee: Dow Corning Corporation
    Inventors: Steven Patrick Christiano, Gregory Gerald Bausch, Lauren Marie Tonge, Sharon Kay McCoy, Elizabeth Fiona Mallen, Roger Jeffery Jones, Athanasios Surutzidis, Andrew Albon Fisk
  • Patent number: 6090857
    Abstract: This invention relates to a foam control agent which comprises the reaction product prepared by reacting: (a) a hydrocarbon carrier; (b) a precipitated amorphous silicate; (c) a refractory clay; and (d) a reactive silicone in the presence of a catalytically effective amount of a basic catalyst at elevated temperatures.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: July 18, 2000
    Assignee: Ashland Inc.
    Inventors: Jeffrey Todd Tamburrino, Andrew Anthony Romano