Room Temperature Curable Silicon-containing Polymer Patents (Class 528/901)
  • Patent number: 8946370
    Abstract: A polymer composition comprises a) a component 1 comprising a silane-terminated prepolymer; and b) a component 2 comprising water; and c) a component 3 comprising a silanol condensation catalyst. The composition is packaged in at least two separate packages prior to application, wherein no package contains all three components 1 and 2 and 3. In the composition water is present in an amount of 0.01 to 10 pbw per 100 pbw of prepolymer present in the composition, and the apparent viscosities of each of the packages is at most 95 Pa·s (Brookfield viscosity (A/6/10)) according to ISO 2555 at 23° C. The composition may suitably applied to railway track structures for the dampening of noise and vibrations of rails.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: February 3, 2015
    Assignee: edilon)(sedra B.V.
    Inventors: Gerrit M. Van Der Houwen, Pieter J. Kerkhoven, Stefanus J. M. Koteris
  • Patent number: 8851328
    Abstract: Viscous compositions are metered discontinuously into storage vessels such as tubes, tubs, or cartridges, from a stable volume container free of dead space wherein the calculated volume, expressed as the mathematical product of adiabatic compressibility coefficients of the composition, the outlet pressure, and volume of the container exceed the metered volume.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: October 7, 2014
    Assignee: Wacker Chemie AG
    Inventors: Peter Schoeley, Guenther Dineiger, Stephan Schulz
  • Patent number: 8703866
    Abstract: A room temperature curable organopolysiloxane composition comprising (A) a diorganopolysiloxane, (B) an alkoxysilane compound and/or a partial hydrolytic condensate thereof, (C) a curing catalyst, and (D) an organic compound having at least one fatty acid ester radical —OC(?O)CH2R3 (wherein R3 is H or a monovalent hydrocarbon radical) and 0, 1 or 2 hydroxyl radicals effectively cures to glass and fluoropolymer-coated aluminum without a need for primer and has storage stability in a sealed package.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: April 22, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Isao Iwasaki, Tsuneo Kimura
  • Patent number: 8609797
    Abstract: A room-temperature vulanizable (RTV) polymeric composition comprising organosiloxane or polyurethane units having at least one terminal methyl isopropyl ketoximino or methyl propyl ketoximino moiety, as well as methods of making the same.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: December 17, 2013
    Assignee: Honeywell International Inc.
    Inventors: Jeff A. Knepper, Edward Asirvatham, Krishnamoorthi Chinnappan, Baihua Wu
  • Patent number: 8563648
    Abstract: The present invention is directed to a coating composition, such as a substantially clear coating composition, which comprises (1) an alkoxysilane, (2) a polysiloxane, (3) a plurality of particles, and (4) curing agent that is reactive with the polysiloxane. The coating composition of the present invention can exhibit increased physical properties, such as scratch resistance, when compared to similar coating compositions that lack the components disclosed herein.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: October 22, 2013
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Robert Schmeltzer, Susan Donaldson, Kevin C. Olson, Kurt G. Olson, John E. Schwendeman, Dennis A. Simpson, Frank C. Williams
  • Patent number: 8497339
    Abstract: The present invention relates to a process for the continuous preparation of mixtures containing organosilicon compound (A) and solid (B) and optionally further components in a mixing unit comprising at least one rotating mixing shaft, wherein at least one mixing shaft makes an angle of inclination with the horizontal of more than 10 degrees and the inlet opening for the solid (B) is arranged higher than the outlet opening.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: July 30, 2013
    Assignee: Wacker Chemie AG
    Inventors: Peter Schoeley, Uwe Scheim
  • Patent number: 8481668
    Abstract: An adhesion promoter composition which comprises an oligomer of a functional alkoxysilane and a specific alkyl alkoxy silane is advantageously employed to improve the bonding of sealants/adhesives/coatings such as moisture curable silylated polymers on various substrates such as wet or dry concrete. In a preferred embodiment the adhesion promoter contains an octyltrialkoxysilane and an oligomer prepared from an epoxy or polyethylene oxide functional alkoxysilane.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: July 9, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Remy Gauthier, Christine Lacroix
  • Patent number: 7999065
    Abstract: Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: August 16, 2011
    Assignee: Cytec Technology Corp.
    Inventors: Howard I. Heitner, Donald P. Spitzer
  • Patent number: 7994262
    Abstract: The present invention has its object to provide a reactive silyl group-containing room temperature curable composition which can give cured products having good recovery, durability and creep resistance and the mechanical physical properties of which can be adjusted so as to be adequate for the use as a sealing material or adhesive and, further, which is low in viscosity and good in workability. This object can be achieved by, for example, a curable composition which comprises an organic polymer (A) containing reactive silyl groups represented by the general formula (1) given below wherein a is 3 and an organic polymer (B) containing an average of 0.5 to 1.5 reactive silyl groups represented by the general formula (1) given below per molecule —Si(R13-a)Xa??(1).
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: August 9, 2011
    Assignee: Kaneka Corporation
    Inventor: Yoshiyuki Kono
  • Patent number: 7807746
    Abstract: The present invention provides a curable composition capable of giving rubbery cured products having excellent adhesion properties to all-purpose substrates, improved weather-resistant adhesion properties to photocatalyst-coated transparent adherends, low modulus and high elongation and, further, showing high weather resistance without undergoing surface cracking or discoloration even when used outdoors for a long period of time. The curable composition of the present invention includes a vinyl polymer (I) and an antioxidant (II). A main chain of the vinyl polymer (I) is a product of living radical polymerization, and the vinyl polymer (I) contains at least one crosslinkable silyl group.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: October 5, 2010
    Assignee: Kaneka Corporation
    Inventors: Hitoshi Tamai, Ayako Yano
  • Patent number: 7798374
    Abstract: In a process for producing crosslinkable organopolysiloxane compositions, in particular organopolysiloxane compositions which can be crosslinked at room temperature, the organopolysiloxane compositions are stored in a storage unit before being packed in moisture-proof containers, the storage having a storage capacity of at least 15 minutes of production capacity of the mixture, the essentially dead-space-free storage unit continually having an internal pressure of more than 1200 hPa during filling.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: September 21, 2010
    Assignee: Wacker Chemie AG
    Inventors: Peter Schoeley, Guenther Dineiger, Stephan Schulz
  • Patent number: 7674864
    Abstract: Polymeric hybrid precursors, mixtures of polymeric hybrid precursors and polymers, and polymer composite matrices prepared from the mixture of the polymeric hybrid precursors and the polymer. The mixture of the polymeric hybrid precursors and the polymer can undergo a process to form the polymer composite matrix having a cross-linked network of a silasesquioxane based polymer formed from the polymeric hybrid precursors that interpenetrates the polymer. The polymeric hybrid precursors include chemical linkage moieties that are capable of forming non-covalent bonds with portions of the polymer. The polymer composite matrices are useful as biomaterials in medical devices.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: March 9, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michele L. Zoromski, Liliana L. Atanasoska, Scott R. Schewe, Robert W. Warner
  • Patent number: 7550548
    Abstract: A room-temperature-curable organopolysiloxane composition comprising: (A) 100 parts by weight of an organopolysiloxane having a viscosity of from 100 to 500,000 mPa·s at 25° C. and having in one molecule 1.5 or more end groups represented by the general formula: (X)aR13-aSi—, where each X is independently a hydroxyl group or a hydrolyzable group, each R1 is independently a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group, and a is 1, 2, or 3; (B) 0.01 to 40 parts by weight of a cross-linking agent selected from a silane or a siloxane oligomer where the cross-linking agent has three or more silicon-bonded hydrolyzable groups per molecule; and (C) microparticles of thermoplastic resin containing a platinum compound in such an amount that the content of metallic platinum in component (C) is within the range of 0.01 to 5 wt. %, where the microparticles have an average diameter from 0.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: June 23, 2009
    Assignee: Dow Corning Toray Company, Ltd.
    Inventors: Hidekatsu Hatanaka, Harumi Kodama, Masayuki Onishi, Hiroji Enami, Koji Nakanishi
  • Patent number: 7473441
    Abstract: Provided is a curable composition comprising a reactive silicon group-containing polyoxyalkylene polymer (A), such as a reactive silicon group-containing polyoxypropylene; a reactive silicon group-containing vinyl polymer (B), such as a reactive silicon group-containing (meth)acrylate polymer; and a polyoxyalkylene plasticizer (C) having a low molecular weight, such as polyoxypropylene, the curable composition providing a rubber-like cured object by crosslinking reaction in the presence of moisture. Also provided is a method for sealing ceramic siding boards comprising applying the curable composition as a sealant and curing the curable composition.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: January 6, 2009
    Assignee: Kaneka Corporation
    Inventors: Hiroshi Iwakirii, Shintaro Komitsu
  • Patent number: 7345118
    Abstract: A method is disclosed for preparing an elastomeric base composition comprising: (I) mixing by an extrusion process (A) a fluorocarbon elastomer with (B) an optional compatibilizer, (C) an optional catalyst (D) a silicone base comprising a curable organopolysiloxane, (E), an optional crosslinking agent (F) a cure agent in an amount sufficient to cure said organopolysiloxane; and (II) dynamically vulcanizing the organopolysiloxane, wherein the weight ratio of fluorocarbon elastomer (A) to silicone base (B) in the elastomeric base composition ranges from 95:5 to 30:70. The cured rubber compositions obtained from the elastomeric base compositions herein have good fuel resistance properties.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: March 18, 2008
    Assignee: Dow Corning Corporation
    Inventors: Igor Chorvath, Kermit Kwan, David Romenesko, Lauren Tonge, Stephen Warren
  • Patent number: 7326762
    Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 5, 2008
    Assignees: Orient Chemical Industries, Ltd., Osaka Municipal Government
    Inventors: Motoomi Arakawa, Kazuaki Sukata, Masayuki Shimada, Shigehiro Sasao
  • Patent number: 7319128
    Abstract: The present invention relates to a process for preparing organyloxysilyl-terminated polymers which have increased stability toward atmospheric moisture, by reacting hydroxy-terminated organic polymers with isocyanato-functional silanes in the presence of at least one catalyst selected from the group consisting of bismuth and zinc compounds, and to crosslinkable compositions comprising such polymers.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: January 15, 2008
    Assignee: Wacker Chemie AG
    Inventors: Wolfgang Ziche, Wolfram Schindler
  • Patent number: 7311945
    Abstract: A silicone composition which can be used in the production of varnishes that can be applied to supports to reduce the friction coefficient. The silicone composition includes at least one polyorganosilane A (POS) which can be cationically and radically cross-linked by functional cross-linking groups (GER) and a primer C chosen from onium borates. The composition also includes molecules (POS D) which are substituted by secondary functional groups (GFS) caned by silicon atoms and selected from those that include at least one alkoxy and/or epoxy and/or carboxy motif and optionally a charge (e.g. silica).
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: December 25, 2007
    Assignee: Rhodia Chimie
    Inventors: Jean-Louis Bertry, Jean-Marc Frances, Fabrice Bohin, Christian Priou
  • Patent number: 7294669
    Abstract: An object of the present invention is to provide a low-modulus, high elongation sealant having improved dynamic durability, desirable mechanical properties, and good workability. The present invention provides a sealant containing an oxyalkylene polymer (A) having a number-average molecular weight of 20,000 to 50,000 and 0.8 or more of reactive silicon groups per molecule on average; 10 parts by weight or more of a plasticizer (B) per 100 parts by weight of the polymer (A); a filler (C); and a curing catalyst (D). This sealant has an improved durability and can achieve the above-described object.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: November 13, 2007
    Assignee: Kaneka Corporation
    Inventor: Hiroshi Ito
  • Patent number: 7282269
    Abstract: Pharmaceutical containers containing at least one shaped component serving as a sealing barrier such as closure, stopper or plunger, for the contents of the container are disclosed. Such sealing barriers are made from elastomeric compositions containing a silylated copolymer of isobutylene/isoprene (butyl rubber) and para-methylstyrene which are curable by contact with moisture.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: October 16, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hsien-Chang Wang, Wai Keung Wong
  • Patent number: 7250467
    Abstract: A room-temperature-curable organopolysiloxane composition comprising: (A) an organopolysiloxane having 1.5 or more end groups having at least one hydroxyl group on the average; (B) a silane or a siloxane oligomer having three or more silicon-bonded hydrolyzable groups; (D) an inorganic powder; and either (C) microparticles of thermoplastic resin containing a platinum compound having an average diameter from 0.1 to 20 ?m; or (C1) a platinum compound; and (C2) an organosiloxane oligomer which contains aryl and alkenyl groups and has 8 or less silicon atoms in each molecule and which contains in each molecule at least one divalent organosiloxane as represented by the formula: —(R2)(R3)SiO—(R2)(R3)Si—, (where R2 is an aryl group, and R3 is an alkenyl group), in a quantity of at least 2 moles of component (C2) per 1 mole platinum atoms in component (C1).
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: July 31, 2007
    Assignee: Dow Corning Toray Silcone Co., Ltd.
    Inventors: Hidekatsu Hatanaka, Harumi Kodama, Masayuki Onishi, Hiroji Enami, Koji Nakanishi
  • Patent number: 7182833
    Abstract: By using a high viscosity moisture-curable adhesive composition comprising at least one polymer or resin selected from the group consisting of (A) a reactive silyl group-containing polyoxyalkylene polymer, (B) a reactive silyl group-containing saturated hydrocarbon polymer, (C) a copolymer of which molecular chain is substantially made of one or more alkyl (meth)acrylate monomer unit(s) and (D) an epoxy resin, it becomes possible to bond an adherend to a substrate without open time and without temporary tacking after application.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: February 27, 2007
    Assignee: Kaneka Corporation
    Inventors: Katsuhiro Ando, Junji Takase, Fumio Kawakubo
  • Patent number: 7157542
    Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: January 2, 2007
    Assignees: Orient Chemical Industries, Ltd., Osaka Municipal Government
    Inventors: Motoomi Arakawa, Kazuaki Sukata, Masayuki Shimada, Shigehiro Sasao
  • Patent number: 7153911
    Abstract: The invention provides a curable composition which comprises a polyoxyalkylene polymer having a reactive silicon group and a (meth)acrylate copolymer and exhibits excellent weather resistance for a prolonged period. This composition comprises 100 parts by weight of a polyoxyalkylene polymer (A) having at least one silicon-containing functional group capable of causing crosslinking through the formation of a siloxane linkage and 20 to 1000 parts by weight of a (meth)acrylate copolymer (B) having a hindered amine structure.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: December 26, 2006
    Assignee: Kaneka Corporation
    Inventors: Ayako Yano, Junji Takase
  • Patent number: 7151150
    Abstract: Organopolysiloxane compositions obtainable by reaction of (a) essentially linear organopolysiloxanes which are terminated at both ends by Si-bonded hydroxy groups, (b) optionally, plasticizers, (c) at least one dialkylaminomethylalkyldialkoxysilane chain extender and/or partial hydrolysate thereof, (d) at least one deactivator, (e) optionally, one or more alkyltrialkoxysilanes and/or partial hydrolysates thereof, and (f) optionally, catalysts for accelerating the reaction of silane (e) with Si—OH groups, are useful in low-modulus compositions which can be crosslinked at room temperature, in particular, compositions which crosslink with elimination of alcohols.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: December 19, 2006
    Assignee: Wacker Chemie AG
    Inventors: Uwe Scheim, Wolfgang Ziche
  • Patent number: 7094471
    Abstract: A composition comprising at least one fluorochemical polyether silane compound having a polyfluoropolyether segment and at least two hydrolysable silane groups per molecule, one or more non-fluorinated compounds having at least two hydrolysable groups per molecule, and/or a partial condensate thereof, is disclosed. The composition provides durable water, oil and stain repellency to a substrate.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: August 22, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: George G. I. Moore, Rudolf J. Dams, Franceska M. Fieuws, Guido P. Piessens
  • Patent number: 7078460
    Abstract: A room temperature curable organopolysiloxane composition is provided which includes an organopolysiloxane, a curing agent, and a specific organic compound incorporating at least one sulfur atom within each molecule. By producing a molding matrix with this type of composition, unsatisfactory curing of an unsaturated polyester resin is unlikely to occur at the contact surface with the silicone rubber of the matrix, and furthermore the mold releasability of the matrix relative to unsaturated polyester resins is excellent. As a result, the matrix can be used repeatedly for a significant number of molding operations.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: July 18, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masayuki Ikeno, Morio Ohashi
  • Patent number: 7071278
    Abstract: Crosslinkable compositions employing organosilicon compounds having at least two hydrolyzable groups, optionally a crosslinker, and optionally a compound containing basic nitrogen, include a crosslinking catalyst which is a reaction product of a phosphorus compound, a sulfur compound, and a tin compound. The compositions exhibit improved shelf life.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: July 4, 2006
    Assignee: Wacker-Chemie GmbH
    Inventor: Wolfgang Ziche
  • Patent number: 7026426
    Abstract: A room temperature curable organopolysiloxane composition comprising (A) an organopolysiloxane of HO(SiR12O)nH and/or (R2O)3-mR1mSiO(SiOR12O)nSiR1m(OR2)3-m wherein R1 is a monovalent C1–10 hydrocarbon radical, R2 is a monovalent C1–6 hydrocarbon radical, n is an integer of at least 10, and m is 0 or 1, (B) a silane compound having at least two hydrolyzable radicals, the remaining radicals being methyl, ethyl, propyl, vinyl or phenyl, and/or a partial hydrolyzate thereof, and (C) an organosilicon compound of (RO)pR13-pSiR3—NH—R4—NH2 wherein R1 and R2 are as defined above, R3 is a divalent C1–10 hydrocarbon radical, R4 is a divalent aromatic ring-bearing C7–10 hydrocarbon radical, and p is 1, 2 or 3, at least one of the NH and NH2 radicals being not directly attached to the aromatic ring in R4, cures into silicone rubber which has improved adherence even upon exposure to hot steam.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: April 11, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Tsuneo Kimura
  • Patent number: 6984707
    Abstract: One component vulcanizable silicone elastomer compositions contain at least one organosilicon compound bearing a plurality of hydrolyzable groups, optionally one or more crosslinkers bearing hydrolyzable groups, and a catalyst system comprising a tin compound bearing a sulphonic acid, sulfonic acid amide, or sulfonic acid ester group, and a basic nitrogen compound. Storage stable compositions capable of vulcanizing to clear or translucent moldings are produced.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: January 10, 2006
    Assignee: Wacker-Chemie GmbH
    Inventors: Wolfgang Ziche, Uwe Scheim
  • Patent number: 6951912
    Abstract: Storage stability of one-component elastomers prepared from constituents having alkoxysilyl end groups is enhanced by employing bin compounds having a coordination number of 5 or 6 in which tin is coordinately bonded to a P?O group as at least one condensation catalyst.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: October 4, 2005
    Assignee: Wacker-Chemie GmbH
    Inventors: Uwe Scheim, Gabriele Dineiger, Wolfgang Ziche
  • Patent number: 6902816
    Abstract: The invention relates to silicone compositions that are used in the production of varnishes that can be applied to supports in order to reduce the friction coefficient. The inventive composition comprises at least one polyorganosiloxane A (POS) which can be cationically and radically cross-linked by functional cross-linking groups (GFR) and a primer C chosen from onium borates, characterized in that the inventive composition also comprises molecules (POS D) which are substituted by secondary functional groups (GFS) carried by silicon atoms and selected from those that include at least one alkoxy and/or epoxy and/or carboxy motif and optionally a charge (e.g. silica). The invention can be used with anti-friction varnishes for RTV silicone coatings for material used in air bags, thermal transfer ribbons or packing films.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: June 7, 2005
    Assignee: Rhodia Chimie
    Inventors: Jean-Louis Bertry, Jean-Marc Frances, Fabrice Bohin, Christian Priou
  • Patent number: 6887964
    Abstract: A moisture-curable, alkoxysilane-functional polyether urethanes containing a) 20 to 90% by weight, based on the weight of a) and b), of a polyether urethane containing two or more reactive silane groups and one or more polyether segments, wherein the polyether segments have a number average molecular weight of at least 3000 and a degree of unsaturation of less than 0.04 milliequivalents/g, provided that the sum of the number average molecular weights of all of the polyether segments per molecule averages 6000 to 20,000, and wherein the reactive silane groups are incorporated as the reaction product of an isocyanate group with a compound corresponding to the formula b) 10 to 80% by weight, based on the weight of a) and b), of a polyether urethane containing one reactive silane group and one or more polyether segments having a number average molecular weight of 1000 to 15,000.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: May 3, 2005
    Assignee: Bayer Materialscience LLC
    Inventors: Kurt C. Frisch, Derek L. Crawford, Richard R. Roesler, Karen M. Henderson, Michael D. Strohecker
  • Patent number: 6887919
    Abstract: A pressure sensitive adhesive composed of a mixture comprising a) a styrene block copolymer having a star-shaped structure and a molecular weight Mw of more than 300,000 g/mol, or having elastomer blocks which contain more than 30% by weight of 1,2-linked diene in their block structure, or both, and which is crosslinkable by exposure to UV-light or electron beams, and b) one or more block copolymers composed of vinylaromatic blocks and elastomer blocks, the block polyvinylaromatic content being greater than 20%, and c) one or more tackifier resins.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: May 3, 2005
    Assignee: tesa AG
    Inventors: Thorsten Krawinkel, Bernd Lühmann, Renke Bargmann
  • Patent number: 6878452
    Abstract: A room-temperature curable organopolysiloxane composition comprising a straight chain organopolysiloxane with hydroxyl groups and/or alkoxy groups at the terminals of the molecular chain, a ferrite such as a Ni—Zn-based ferrite, and a silane compound with hydrolysable groups such as alkenoxy groups, ketoxime groups or alkoxy groups, and/or a partial hydrolysis-condensation product thereof, produces a silicone rubber which displays excellent adhesion to substrates formed from synthetic resins such as acrylic resins, polyamide resins, polybutylene terephthalate, polystyrene and polyphenylene sulfide. The composition is useful as a sealing material, or as an adhesive for electrical components or electronic components.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: April 12, 2005
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Norio Kameda, Tsuneo Kimura
  • Patent number: 6861149
    Abstract: The invention relates to compositions used for aqueous delivery of self-emulsifying fluorinated alkoxysilanes to substrates to provide oil and water resistive coatings for the substrates, a method of treating a substrate to render it oil and water repellent, and articles having coatings made from the compositions.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: March 1, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Mark J. Pellerite, Michael S. Terrazas, Rudolf J. Dams
  • Patent number: 6833407
    Abstract: The present invention relates to a solvent free one-part room temperature vulcanizable organopolysiloxane rubber composition which crosslinks in the presence of moisture to form a high gloss coating with minimal shrinkage for surfaces.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: December 21, 2004
    Assignee: CSL Silicones Inc.
    Inventors: Farooq Ahmed, Faisal Huda, Serajul Huda, John Barr
  • Patent number: 6790531
    Abstract: Process for treating a flexible bi-constituent self-demolding silicone membrane used as a counterform particularly for resin transfer molding. The membrane is coated with a thin layer of at least one monoconstituent silicone which is a polysiloxane cross-linkable at ambient temperature in the presence of the moisture in air. The polysiloxane corresponds to the formula (I): in which: the substituents R3, R4, and R5 are selected from alkyl or aryl radicals, R6 represents an alkyloxy group, an alkenyloxy group, an alcanoyloxy group, an amino group, a ketiminoxy group, an amido group, an aminoxy group.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: September 14, 2004
    Assignee: Airbus France
    Inventor: Alain Fournier
  • Patent number: 6740725
    Abstract: A room temperature curable organopolysiloxane composition comprising (a) an organopolysiloxane having a specific structure, (b) a alkenoxysilane or substituted alkenoxysilane or a partial hydrolyzate thereof, and (c) a siloxane or a partial hydrolyzate thereof cures into a product which experiences no decline of insulation resistance upon application of voltage in a hot humid environment and is resistant to electrolytic corrosion.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: May 25, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Jun Horikoshi, Tsuneo Kimura, Hironao Fujiki
  • Patent number: 6737494
    Abstract: A one part moisture curable room temperature vulcanizable silicone composition comprising an alkylalkoxyacyloxysilane selected from the group consisting of R1SiR2aR33-a and R4R5bR63-bSi—O—SiR7R8cR93-c and mixtures thereof; where R1, R4 and R7 are independently selected from alkyl radicals having, the formula (CH2)nX, where n has 1 to 10, and X is selected from the group consisting of hydrogen, amino, epoxy, cyano, thiocyano, allyl, and vinyl; R2 R5 and R8 are independently selected from acyloxy radicals having the formula OC(O)(CH2)mH, where m has 1 to 8; R3, R6 and R9 are independently selected from alkoxy radicals or mixture of alkoxy radicals of 1 to 10 carbon atoms wherein the subscripts a, b and c are subject to the following limitations: 0<a<3; 0<b<3; and 0<c<3 wherein said alkylalkoxyacyloxysilane is a liquid at a temperature above 0° C.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 18, 2004
    Assignee: General Electric Company
    Inventor: Jonathan R. Sargent
  • Patent number: 6716534
    Abstract: A composition comprising a least one fluorochemical polyether silane compound having a polyfluoropolyether segment and at least two hydrolysable silane groups per molecule, one or more non-fluorinated compounds having at least two hydrolysable groups per molecule, and/or a partial condensate thereof, is disclosed. The composition provides durable water, oil and stain repellency to a substrate.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: George G. I. Moore, Rudolf J. Dams, Franceska M. Fieuws, Guido P. Piessens
  • Patent number: 6652978
    Abstract: Surfaces of various types of substrates, including glass, ceramics, and metals, are rendered stable to heat and corrosion by treatment with a silicon-containing polymer which may be an alkoxy silyl substituted polysilazane or an alkoxy silyl substituted polysiloxazane. Polymeric coatings of the compositions may be cured at room temperature to about 50° C. in an atmosphere containing moisture without requiring the introduction of a catalytic curing agent.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: November 25, 2003
    Assignee: Kion Corporation
    Inventors: Alexander Lukacs, III, Gary J. Knasiak
  • Patent number: 6613185
    Abstract: A composition is disclosed that cures to form a high strength adhesive bond with properties suitable for use in sealing the parts of ranges and other appliances together, without the necessity for a controlled humidity curing environment and without necessity for special ventilation equipment. The present invention describes a self-bonding curable silicone elastomer containing, inter alia, certain unsaturated aliphatic trialkoxysilanes, such as allyltrimethoxysilane, and having physical properties ideal for bonding glass or metal substrates in glass-top or ceramic-top ranges and ovens.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: September 2, 2003
    Assignee: Specialty Silicone Products, Inc.
    Inventors: Joseph A. Valade, Ned J. Reo
  • Patent number: 6599974
    Abstract: An impression material for the use with an impression spoon in patients, wherein the impression material comprises curable components and at least one first filler, characterized in that said at least first filler has a BET surface of from 20 to 50 m2/g, preferably from 30 to 40 m2/g, whereby the impression material attains a low thixotropy and a viscosity of from 1 to 350 Pas.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: July 29, 2003
    Assignee: Kettenbach GmbH & Co. KG
    Inventors: Alexander Bublewitz, Jens-Peter Reber, Rainer Hahn
  • Patent number: 6593413
    Abstract: A room temperature rapid-curable silicone composition is provided which includes (A) an organopolysiloxane terminated with hydroxyl groups, having a viscosity of from 25 mPa·s to 1,000,000 mPa·s at 25° C.; (B) a compound selected from the group consisting of a hydrolyzable silane represented by the following general formula (1): RnSiX4−n  (1) wherein R represents a monovalent hydrocarbon group having 1 to 12 carbon atoms; X represents a compound selected from the group consisting of a ketoxime group, an alkoxyl group, an alkenoxyl group and an acyloxyl group; and n represents an integer of 0 to 2, and a partial hydrolysis-condensation product thereof; and (C) a water-containing wet-process silica having an average particle diameter of 100 &mgr;m or smaller, which is a chief source for feeding water necessary for condensation curing reaction.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 15, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironobu Muramatsu, Tsuneo Kimura
  • Patent number: 6566443
    Abstract: A nonsagging and extrudable room temperature curable silicone rubber composition with excellent adherence to a variety of substrates comprising (A) diorganopolysiloxane having silicon-bonded alkoxy in molecular chain terminal position, (B) surface-hydrophobicized dry method silica, (C) non-surface-hydrophobicized dry method silica, (D) alkoxysilane, (E) an organotitanium compound, and (F) light stabilizer and/or UV absorber.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: May 20, 2003
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Hirotoki Morimoto, Kazutoshi Okabe, Hiroshi Adachi
  • Patent number: 6562931
    Abstract: Room temperature vulcanizable silicone rubber compositions comprising: hydroxyl endblocked polyorganosiloxane, at least one phenyl-substituted tris-functional ketoximino silane and an aminofunctional silane adhesion promoter characterized as having less than three hydrolyzable alkoxy groups attached to the silicon are provided.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 13, 2003
    Assignee: AlliedSignal Inc.
    Inventor: Jeffrey A. Knepper
  • Patent number: 6544372
    Abstract: Multi-stranded silicone rubber fishing skirts printed with RTV adhesive inks and/or laminated with colored foils and the method of manufacture of the fishing skirts are disclosed herein. The RTV inks set in the presence of humidity. The foils and inks can be applied to a silicone rubber substrate in preferred patterns and in registry with other areas containing foil or ink. The adhesive ink preferably comprises a mixture of an RTV adhesive, oil based thinner and/or pigment. In various processes, the ink is silk-screen printed and air-dried. One or more foils can be bonded to the rubber with different techniques. The foil can be vulcanized to the rubber substrate, bonded to a wet ink, or bonded under pressure to exposed smooth surfaces. The surface texture can be defined during and after vulcanization at the mold and with a smoothing template or with printed ink.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: April 8, 2003
    Assignee: Skirts Plus Corporation
    Inventor: Donald J. Link
  • Patent number: 6545104
    Abstract: The specification describes and claims room temperature vulcanisable compositions formed by mixing components comprising a polysiloxane having hydroxyl or hydrolysable groups, a crosslinker having silicon bonded hydrolysable groups selected from the group consisting of alkoxy-, acetoxy- and oximo and a hydroxy terminated urethane prepolymer with no residual isocyanate groups formed from a polyol and an isocyanate. The compositions demonstrate improved adhesion, thixotropy and toolability.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 8, 2003
    Assignee: Dow Corning GmbH
    Inventors: Dieter Mueller, Dieter Koerner
  • Patent number: RE41805
    Abstract: A moisture curable composition excellent in transparency, operating efficiency and storage stability, and is suitable for use as an adhesive and a sealing material is provided. The moisture curable composition produced by blending 100 parts by weight of a mixture (A) and 2 parts by weight to 300 parts by weight of amorphous powder (B). The mixture (A) comprises (1) a copolymer having reactive silicon groups which can be cross-linked by hydrolysis, whose molecular chain substantially consists of (i) alkylacrylate and/or alkylmethacrylate monomeric units having an alkyl group with 1 to 8 carbon atoms, and (ii) alkylacrylate and/or alkylmethacrylate monomeric units having an alkyl group with 10 or more carbon atoms, and (2) a polymer substantially consisting of oxyalkylene including reactive silicon groups which can be cross-linked by hydrolysis. The amorphous powder (B) has a grain diameter ranging from 0.01 ?m to 300 ?m.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 5, 2010
    Assignee: Cemedine Co., Ltd.
    Inventors: Yasunobu Horie, Yoshinobu Egawa, Yuichi Oshima, Hideharu Hashimukai, Tomokazu Wakaume, Hiroshi Aoki