Patents Assigned to Wacker Silicones Corporation
  • Patent number: 6713586
    Abstract: The present invention pertains to an epoxy-functional organopolysiloxane resin, and an epoxy-functional organopolysiloxane coating composition comprising the epoxy-functional organopolysiloxane resin. The epoxy-functional organopolysiloxane coating composition comprises the epoxy-functional organopolysiloxane resin of the present invention and a hardener. The epoxy-functional organopolysiloxane coating composition may optionally include pigments, a flow additive and a catalyst. The epoxy-functional organopolysiloxane resin is preferably prepared by reacting a silicone resin with a silane having at least one epoxy group per molecule. The coating composition cures through the crosslinking of the epoxy groups of the resin to provide a coating which is weather and corrosion resistant. The polysiloxane moieties in the resin render the cured coating resistant to U.V. light and heat.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: March 30, 2004
    Assignee: Wacker Silicones Corporation
    Inventor: James D. Greene
  • Patent number: 6569914
    Abstract: Low solvent and solvent-free silicone release coatings may be prepared with varying COF levels by incorporating a very high molecular weight, substantially non-reactive organopolysiloxane into a conventional curable release coating. By supplying the COF additive in the form of a relatively low viscosity master batch, adjustment of COF may be made by the coating applicator. Very low COF values can be obtained from tin-free, solvent-free coating systems, while at the same time, the coatings have very low extractables.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: May 27, 2003
    Assignee: Wacker Silicones Corporation
    Inventors: Oliver H. Zoellner, Andrew J. Conti, Kathleen D. Beekel
  • Publication number: 20020193461
    Abstract: Low solvent and solvent-free silicone release coatings may be prepared with varying COF levels by incorporating a very high molecular weight, substantially non-reactive organopolysiloxane into a conventional curable release coating. By supplying the COF additive in the form of a relatively low viscosity master batch, adjustment of COF may be made by the coating applicator. Very low COF values can be obtained from tin-free, solvent-free coating systems, while at the same time, the coatings have very low extractables.
    Type: Application
    Filed: April 27, 2001
    Publication date: December 19, 2002
    Applicant: Wacker Silicones Corporation
    Inventors: Oliver H. Zoellner, Andrew J. Conti, Kathleen D. Beekel
  • Publication number: 20020156187
    Abstract: The present invention pertains to an epoxy-functional organopolysiloxane resin, and an epoxy-functional organopolysiloxane coating composition comprising the epoxy-functional organopolysiloxane resin. The epoxy-functional organopolysiloxane coating composition comprises the epoxy-functional organopolysiloxane resin of the present invention and a hardener. The epoxy-functional organopolysiloxane coating composition may optionally include pigments, a flow additive and a catalyst. The epoxy-functional organopolysiloxane resin is preferably prepared by reacting a silicone resin with a silane having at least one epoxy group per molecule. The coating composition cures through the crosslinking of the epoxy groups of the resin to provide a coating which is weather and corrosion resistant. The polysiloxane moieties in the resin render the cured coating resistant to U.V. light and heat.
    Type: Application
    Filed: February 5, 2002
    Publication date: October 24, 2002
    Applicant: Wacker Silicones Corporation
    Inventor: James D. Greene
  • Patent number: 6431591
    Abstract: Smart airbag systems employ a sensor bag containing an organopolysiloxane gel pressure transmission medium, transmitting pressure to one or more associated pressure sensor devices. The organopolysiloxane gel efficiently transmits pressure without leaking or extruding from the sensor bag when the latter is punctured or ruptured.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: August 13, 2002
    Assignee: Wacker Silicones Corporation
    Inventors: Benjamin D. Ray, Toby R. Vick, Wolfgang Schuett
  • Patent number: 6423322
    Abstract: Soft, creamy translucent and transparent gels suitable for use in cosmetic applications may be prepared by hydrosilylating an unsaturated MQ resin or its equivalent with an Si—H functional organopolysiloxane cross-linker having Si—H functionality along its polysiloxane backbone, in the presence of a low viscosity and preferably volatile organopolysiloxanes. The stable gels obtained may be converted to creamy gels of a wide range of consistency by simple shearing. Gel firmness can be maintained through addition of a catalyst inhibitor to the gel formulation.
    Type: Grant
    Filed: May 22, 1999
    Date of Patent: July 23, 2002
    Assignee: Wacker Silicones Corporation
    Inventor: Bryan E. Fry
  • Patent number: 6365670
    Abstract: Organopolysiloxane gels containing gel-bound hydrophillic groups are prepared by reacting a hydrosilylatable unsaturated organopolysiloxane resin, a crosslinker bearing Si—H bound hydrogen, and a hydrosilylatable unsaturated hydrophile, in the presence of an effective amount of a hydrosilylation catalyst, at least a portion of the reaction taking place in the presence of at least 60 weight percent of an oleaginous composition containing at least 50 weight percent low viscosity organopolysiloxane. When sheared, the crosslinked organosiloxane compositions form a stable, preferably incompatible gel which may be used in turn to form a stable emulsion with large amounts of ordinarily incompatible hydrophillic liquids. The emulsions thus formed are suitable for use in a wide variety of cosmetic products.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: April 2, 2002
    Assignee: Wacker Silicones Corporation
    Inventor: Bryan E. Fry
  • Patent number: 6344520
    Abstract: The present invention pertains to an epoxy-functional organopolysiloxane resin, and an epoxy-functional organopolysiloxane coating composition comprising the epoxy-functional organopolysiloxane resin.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: February 5, 2002
    Assignee: Wacker Silicones Corporation
    Inventor: James D. Greene
  • Patent number: 6296907
    Abstract: The present invention relates to a method of reducing the coefficient of friction of gaskets. The method comprises coating the gasket with a curable silicone composition. The composition contains a curable silicone resin, a catalyst, at least one lubricating filler not soluble in the coating composition and optionally a solvent.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: October 2, 2001
    Assignee: Wacker Silicones Corporation
    Inventor: George J. Viksne
  • Patent number: 6294007
    Abstract: Silicone mold release compositions which are a stable blend of hydrophobic-modified organopolysiloxane and an aminoorgano- or mercaptoorgano-functional organopolysiloxane, or a solution in organic solvent of a stable or unstable blend, provide exceptional mold release properties while retaining paintability of molded parts.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: September 25, 2001
    Assignee: Wacker Silicones Corporation
    Inventor: Eugene R. Martin
  • Patent number: 6251966
    Abstract: An organopolysiloxane adhesive contains an organopolysiloxane rubber base, an organopolysiloxane pressure sensitive adhesive, a aliphatic unsaturated-functional M′Q resin, and a polyhydrido-functional organopolysiloxane in an organic solvent, and exhibits differential adhesion between dental impression material and dental impression tray material.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: June 26, 2001
    Assignee: Wacker Silicones Corporation
    Inventors: Bryan E. Fry, Eugene R. Martin
  • Patent number: 6221433
    Abstract: Gloss and ease of application of sprayable aqueous organopolysiloxane vinyl protectant emulsions are both improved by the addition of a gloss-improving additive. Protectants may be formulated to achieve higher gloss with the same amount of active organopolysiloxane or the same or higher gloss with less organopolysiloxane. Preferred gloss-improving additives are water soluble organic viscosifiers and/or minor amounts of inorganic, viscosity-increasing particulate solids.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: April 24, 2001
    Assignee: Wacker Silicones Corporation
    Inventors: Ronald Lee Muntz, Michael Dean Lowery, Bryan Eric Fry
  • Patent number: 6206956
    Abstract: Gloss and ease of application of sprayable aqueous organopolysiloxane vinyl protectant emulsions are both improved by the addition of a gloss-improving additive. Protectants may be formulated to achieve higher gloss with the same amount of active organopolysiloxane or the same or higher gloss with less organopolysiloxane. Preferred gloss-improving additives are water soluble organic viscosifiers and/or minor amounts of inorganic, viscosity-increasing particulate solids.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: March 27, 2001
    Assignee: Wacker Silicones Corporation
    Inventors: Ronald L. Muntz, Michael D. Lowery, Bryan E. Fry
  • Patent number: 6150488
    Abstract: Star- and comb-type branched organosilicon compounds containing .omega.-terminated organopolysiloxane branches are readily synthesized by the catalyzed or uncatalyzed reaction of an at least tris(organyloxy)-functional organosilicon compound with a predetermined amount of substantially linear minimally disilanol-functional organopolysiloxane. Well defined, non-resinous, liquid products of low viscosity may be obtained.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: November 21, 2000
    Assignee: Wacker Silicones Corporation
    Inventor: Eugene R. Martin
  • Patent number: 6143812
    Abstract: Asphalt release coatings are prepared by applying an aqueous emulsion containing an organopolysiloxane component, an effective amount of one or more emulsifying surfactants, and most minor amount of a multiple release additive. The compositions exhibit improved release, particularly multiple releases, even with polymer modified asphalt binders.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: November 7, 2000
    Assignee: Wacker Silicones Corporation
    Inventors: Eugene R. Martin, Michael L. Coffey
  • Patent number: 6129360
    Abstract: An oil resistant gasket and method for preparing said oil resistant gasket which comprises applying an organic polymeric coating selected from the group consisting of parylene N, parylene D, parylene C and mixtures thereof; to a porous, elastomeric gasket.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: October 10, 2000
    Assignee: Wacker Silicones Corporation
    Inventors: Francis J. Walker, Theodore D. Johnson
  • Patent number: 6114299
    Abstract: Aqueous textile treating compositions containing both nitrogen-functional organopolysiloxanes and oligomeric polyisobutylene polymers are as effective as conventional textile treating compositions containing only nitrogen-functional organopolysiloxane, and have improved resistance to yellowing, improved washfastness, and are more cost effective. Stable concentrates containing amino-functional organopolysiloxane, polyisobutylene, and a blend-stabilizing surfactant may be used to form aqueous emulsion and microemulsion fabric softener compositions.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: September 5, 2000
    Assignee: Wacker Silicones Corporation
    Inventors: Scott Hunter, Eugene R. Martin
  • Patent number: 6103804
    Abstract: RTV-1 silicone sealants resistant to deterioration in the presence of aggressive functional fluids are prepared from an organopolysiloxane component comprising a major amount of silanol-functional organopolysiloxane, a primary or secondary amine-functional crosslinker, and both iron oxide and magnesium oxide, optionally together with auxiliary fillers, adhesion promoters, catalysts, and customary additives. The gasket materials are particularly useful in axle and transaxle seals exposed to fuel efficiency-promoting aggressive lubricants.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: August 15, 2000
    Assignee: Wacker Silicones Corporation
    Inventor: Timothy D. Davis
  • Patent number: 6004918
    Abstract: Liquid foam control compositions provide good control for liquid detergent formulations, while being storage stable both before and after incorporation into liquid detergent.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: December 21, 1999
    Assignee: Wacker Silicones Corporation
    Inventor: William Kiger Adams
  • Patent number: 5882387
    Abstract: The present invention relates to a wipe-on polish composition which contains no wax or abrasive components. The polish requires minimal effort to wipe out to a thin, glossy, streak-free, hydrophobic film. The polish is comprised of an emulsion that contains an organopolysiloxane and a volatile diluent.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: March 16, 1999
    Assignee: Wacker Silicones Corporation
    Inventors: Eugene R. Martin, Michael D. Lowery