Patents Represented by Attorney Jim L. DeCesare
  • Patent number: 6602949
    Abstract: Stable vinyl copolymer emulsions are capable of forming strongly water repellent and highly water resistant films and coatings, and can be used as paint or coating additives. They are highly compatible with paint and coating compositions. The vinyl copolymer emulsions are produced by emulsion polymerizing (A) 50-99.9 weight percent of a vinyl monomer, (B) 0.1-50 weight percent of a branched organosilicon compound bearing a radically polymerizable organic group, where the sum of components (A) and (B) is 100 weight percent, and (C) a radically polymerizable surfactant used at 0.1-20 weight parts per 100 weight parts of the total amount of components (A) and (B).
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: August 5, 2003
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Haruhiko Furukawa, Takayuki Aso, Yoshitsugu Morita
  • Patent number: 6593422
    Abstract: Emulsions are prepared by heating and polymerizing a mixture containing (i) a non-crosslinked silicone polyether; (ii) optionally, a cosurfactant which can be a monohydroxy alcohol, diol, triol, or glycol ether; (iii) an ≡Si—H containing polysiloxane; (iv) a mono-alkenyl polyether; (v) an &agr;,&ohgr;-diene, &agr;,&ohgr;-diyne, or &agr;,&ohgr;-ene-yne; (vi) optionally, a silicone oil such as (a) a low molecular weight linear or cyclic volatile methyl siloxane, or (b) a low molecular weight linear or cyclic volatile or non-volatile alkyl or aryl siloxane; (vii) a platinum catalyst; and (viii) water.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: July 15, 2003
    Assignee: Dow Corning Corporation
    Inventor: Zuchen Lin
  • Patent number: 6545086
    Abstract: A pressure sensitive adhesive emulsion comprises a disperse silicone phase emulsified in a continuous water phase in the presence of a surfactant. The disperse silicone phase comprises 40-80 percent by weight of a silicone pressure sensitive adhesive, which is the product of mixing a silanol-terminated polydiorganosiloxane of Tg below −20° C. with a silanol-containing silicone resin of Tg above 0° C., dispersed in 60-20 percent by weight of a volatile silicone fluid having a boiling point below 300° C. The emulsion is substantially free of any non-silicon atom containing volatile organic material.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 8, 2003
    Assignee: Dow Corning Corporation
    Inventor: Jeffrey Alan Kosal
  • Patent number: 6534126
    Abstract: The tack of a polymeric substrate is reduced by (i) coating a surface of the polymeric substrate with a thermosetting liquid silicone rubber composition, (ii) applying an aqueous suspension of powdered silicone rubber with a mean particle size of 0.1 to 500 micron to the coating of thermosetting liquid silicone rubber composition on the polymeric substrate, and (iii) heating the coated polymeric substrate to cure the thermosetting liquid silicone rubber composition and simultaneously adhere the powdered silicone rubber to the coating on the polymeric substrate.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: March 18, 2003
    Assignee: Dow Corning Corporation
    Inventors: William Raye Blackwood, James Habermehl, Donald Taylor Liles
  • Patent number: 6498211
    Abstract: A vibration damping silicone composition of superior long term storage stability and vibration damping properties contains (A) a silicone oil, (B) a heavy calcium carbonate powder, (C) a light calcium carbonate powder, and (D) a fatty acid or a fatty acid derivative.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: December 24, 2002
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Hideki Kobayashi, Masayuki Hayashi
  • Patent number: 6497894
    Abstract: An aqueous dispersion of cured silicone rubber particles includes as Components, (A) cured silicone rubber particles with an average particle size of 0.1-500 &mgr;m; (B) a surface active agent; (C) a thickening agent; (D) an antiseptic agent (i) consisting of phenoxyethanol, chlorphenesin, methylparaben, and benzoic acid, or an antiseptic agent (ii) consisting of phenoxyethanol, chlorphenesin, and sorbic acid; and (E) water. It has superior antiseptic properties and superior anti-mildew properties without impairing the overall stability of the aqueous dispersion.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: December 24, 2002
    Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Co., Ltd.
    Inventors: Tammy Lea Bratcher, Kazuo Kobayashi, Donald Taylor Liles, Yoshitsugu Morita
  • Patent number: 6086663
    Abstract: A surface modifier composition that exercises an excellent antistatic performance, offers an excellent storage stability, and provides an excellent surface feel, surface protection, and surface lubricity; that does not suffer from deterioration over long periods of time; that exhibits an excellent blending stability with respect to cosmetics, lubricants, lustrants, antifoams, fiber-treatment agents, and paints; and that has an excellent capacity to improve a variety of surface properties. The surface modifier composition comprises an (A) amidepolyether-modified organopolysiloxane and an (B) alcoholic functional group-containing compound.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: July 11, 2000
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Hidetoshi Kondo, Masahiro Takahashi
  • Patent number: 6017546
    Abstract: A water-in-volatile silicone emulsion gel having skin moisturizing qualities. The gel is formed by mixing an oil phase with a water phase. The oil phase contains a volatile silicone, a siloxane polyether, and an oil. The water phase contains water, a humectant, and an oxyethylene functional organosilane. Matching of the refractive index of the oil phase and the water phase results in the formation of a crystal clear gel having a viscosity in the range of 5,000 to 150,000 centistokes.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: January 25, 2000
    Assignee: Dow Corning Corporation
    Inventor: David Alan Glover
  • Patent number: 6018002
    Abstract: A photoluminescent material is prepared by burning hydrogen silsesquioxane resin powder in a crucible in oxygen or ammonia atmosphere at a temperature above 400.degree. C. for about two hours. The photoluminescent material has a smooth compact surface surrounding a porous and loosely packed interior, the smooth compact surface exhibiting blue photoluminescence when irradiated with ultraviolet light, and the interior portion exhibits photoluminescence at longer wavelengths when irradiated under the same conditions with ultraviolet light.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: January 25, 2000
    Assignee: Dow Corning Corporation
    Inventor: Udo C. Pernisz
  • Patent number: 6013682
    Abstract: Described is a method of making a silicone in water emulsion. The method comprises mixing (I) a composition containing at least one polysiloxane, at least one organosilicon material that reacts with said polysiloxane by a chain extension reaction and a metal containing catalyst for said chain extension reaction, (II) at least one surfactant and (III) water to form a mixture. The mixture is emulsified to form an emulsion which can have a wide variety of silicone volume fractions, a broad range of mono-disperse particle sizes and a wide variety of molecular weight polymers.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: January 11, 2000
    Assignee: Dow Corning S. A.
    Inventors: Frederic Dalle, Leon Marteaux
  • Patent number: 6001945
    Abstract: An exchange reaction of hydroxyl and alkoxysilane is used as a polymerization avenue yielding hyperbranched polymers. A monomer containing hydroxy alcohol functionality and alkoxy functionality attached to a silicon atom in the monomer is employed, and a simple exchange reaction with driving off of alcohol by-product leads to the desired hyperbranched polymerization and materials.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: December 14, 1999
    Assignee: Dow Corning Corporation
    Inventors: Gary Thomas Decker, Daniel Graiver, Arthur James Tselepis
  • Patent number: 5998537
    Abstract: Emulsions containing particles of an organopolysiloxane with an average particle diameter of less than about 100 nanometer are prepared by (i) adding a polyfunctional silane to an aqueous medium containing a nonionic surfactant, an anionic or cationic surfactant, and a catalyst; (ii) allowing the polyfunctional silane to hydrolyze; (iii) adding a cyclic siloxane to the aqueous medium containing the pre-hydrolyzed polyfunctional silane; (iv) copolymerizing the cyclic siloxane and the pre-hydrolyzed polyfunctional silane to form the organopolysiloxane; and (v) continuing copolymerizing step (iv) until the resulting organopolysiloxane has a viscosity greater than about 100,000,000 centipoise (mPa.multidot.s).
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: December 7, 1999
    Assignee: Dow Corning Corporation
    Inventors: Kristin Elizabeth Good, Jeffrey Alan Kosal
  • Patent number: 5328683
    Abstract: A water repellent powdered material and a method of making the powder in which the powdered material is mixed with an organic solvent solution of a triorganosiloxysilicic acid having the formula (R.sub.3 SiO.sub.1/2).sub.2 nSiO.sub.2 in which R is a monovalent hydrocarbon radical such as alkyl, aryl, and alkenyl; and n is an integer having a value of one to five; with the acid being present in an amount of from 0.1 to 20 parts by weight per one hundred parts by weight of the powdered material. The powder can be used to formulate cosmetic foundations.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: July 12, 1994
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventor: Asao Harashima
  • Patent number: 5326483
    Abstract: A clear shampoo is described which contains a cationic oil-in-water emulsion of an amine functional polydimethyl silicone, and a method of making clear and stable shampoo compositions, in which an emulsion of an amine functional siloxane can be added to a shampoo composition without causing cloudiness, and without contributing instability to the shampoo composition whereby phase separation occurs. In accordance with the method, an emulsion of an amine functional siloxane is added to a shampoo composition without the necessity of requiring that a pearling agent be employed for the purpose of disguising cloudiness.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: July 5, 1994
    Assignee: Dow Corning Corporation
    Inventors: Daniel J. Halloran, Judith M. Vincent
  • Patent number: 5326557
    Abstract: Moisturizing compositions for a human skin which contain oxyethylene function organosilanes. When used in skin care applications, these compounds exhibit humectant properties. The oxyethylene functional organosilane is a compound having the formula RSiR'.sub.3 in which R is the radical --O(CH.sub.2 CH.sub.2 O).sub.x R"; R' is an R group or an alkyl radical having one to six carbon atoms; R" is a radical such as hydrogen; an alkyl group of one to six carbon atoms; and an aryl group; and x is an integer having a value of six to thirty.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: July 5, 1994
    Assignee: Dow Corning Corporation
    Inventors: David A. Glover, Gary E. LeGrow, Linda M. Madore, Regina M. Malczweski
  • Patent number: 5320796
    Abstract: A method for producing powder mixtures capable of inducing an even more intimate, microhomogeneous intermixing in a heterogeneous powder composed of at least two types of powders. The method is effective even for the mixing of an aggregable powder and a nonaggregable powder. According to the method, a heterogeneous powder composed of at least two type of powders that have been preliminarily mixed by stirring is introduced into an inlet while a rotating axle is turning and is axially transported within a cylinder by a screw. As the heterogeneous powder passes between rotating disks and fixed disks, it is subjected to a highly efficient mixing by compression and shear forces due to a sliding-shear action exerted between depressions and elevations installed on the opposing surfaces of the rotating disks and fixed disks. The mixture passes in sequence through multiple stages of the rotating and fixed disks. A powder mixture, which has been microhomogeneously interdispersed, is discharged from the outlet.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: June 14, 1994
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Asao Harashima, Kaoru Kunimatsu, Atsushi Sasaki, Ryuji Tachibana
  • Patent number: 5302382
    Abstract: A method of making a stable emulsified personal care product by (i) forming an anhydrous silicone mixture which includes a silicone such as a silicone oil or a silicone gum, the mixture further including a first silicone oxyalkylene copolymer, and a second silicone oxyalkylene copolymer; (ii) forming an aqueous based pre-emulsified personal care product; and (iii) adding the anhydrous silicone mixture directly to the pre-emulsified personal care product without further emulsification.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: April 12, 1994
    Assignee: Dow Corning Corporation
    Inventor: Kenneth A. Kasprzak
  • Patent number: 5302371
    Abstract: A fluorescent organosilicon compound derived from the reaction of an aminofunctional organopolysiloxane and a fluorescent labeling reagent in which the fluorescent labeling reagent is incorporated into the molecule of the aminofunctional organopolysiloxane by means of a sulfonamide linkage. A method of treating hair is also disclosed in which the fluorescent organosilicon compound is applied to hair and the treated hair is examined for fluorescence under ultraviolet light in order to determine the extensiveness of deposition of the fluorescent organosilicon compound.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: April 12, 1994
    Assignee: Dow Corning Corporation
    Inventors: Jo A. Lamb, Maris J. Ziemelis
  • Patent number: 5302379
    Abstract: An improved nail lacquer containing a film forming resin, a plasticizer, and a solvent. The improvement resides in utilizing as the film forming resin a blend of: (i) a graft copolymer having a main backbone chain of acrylic ester units and methacrylic ester units, with the main backbone chain having grafted thereto pendant trialkoxysilyl groups and pendant ethylene glycol dimethacrylate groups; and (ii) a silsesquioxane resin containing RSiO.sub.3/2 units and .tbd.SiOH units in which R is an alkyl group or an aryl group. In an alternate form of the invention, the film forming resin is not a blend, but an improved type of graft copolymer containing, in addition to pendant trialkoxysilyl groups, pendant vinylbenzyl chloride groups.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: April 12, 1994
    Assignee: Dow Corning Corporation
    Inventor: Milan F. Sojka
  • Patent number: 5302658
    Abstract: A method is described for making an emulsion in which a mixture is formed containing a polysiloxane and a primary nonionic surfactant having an HLB value of 10 to 19. There is added to the mixture a first portion of surfactant free water gradually in a series of separate incremental steps. This is followed by the addition to the mixture of a secondary nonionic surfactant having an HLB value of 1.8-15. The mixture is stirred until the particle size of the polysiloxane in the mixture is in the range of 1-100 microns. A second portion of water is added to the mixture in an amount sufficient to provide a total content of water in the product of 25-65 percent by weight.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: April 12, 1994
    Assignee: Dow Corning Corporation
    Inventors: Ronald P. Gee, Padmakumari J. Varaprath