Patents by Inventor Gary E. LeGrow

Gary E. LeGrow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7579425
    Abstract: A method for making high softening point linear and cyclic alkylsilicone waxes includes reacting a C30+ alpha olefin wax with a silicone hydride polymer in the presence of a catalyst. The high softening point linear and cyclic alkylsilicone waxes have softening points approximating those of natural waxes and, in consequence, can be used in applications which traditionally employ natural waxes.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: August 25, 2009
    Assignee: Clariant Life Science Molecules (Florida), Inc.
    Inventors: W. Leonard Terry, Jr., Gary E. LeGrow
  • Patent number: 7235230
    Abstract: The present invention relates to leave-on compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Said trimethylsilylalkylsilsesquioxanes are especially useful in formulating emulsions.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: June 26, 2007
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Gary E. LeGrow, W. Leonard Terry, Jr., Ray Figueroa, Peter Klug, Waltraud Simsch, Angelika Turowski
  • Patent number: 7226502
    Abstract: A method for making high softening point linear and cyclic alkylsilicone waxes includes reacting a C30+ alpha olefin wax with a silicone hydride polymer in the presence of a catalyst. The high softening point linear and cyclic alkylsilicone waxes have softening points approximating those of natural waxes and, in consequence, can be used in applications which traditionally employ natural waxes.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: June 5, 2007
    Assignee: Clariant Finance (BVI) Limited
    Inventors: W. Leonard Terry, Jr., Gary E. Legrow
  • Publication number: 20040200384
    Abstract: A method for making high softening point linear and cyclic alkylsilicone waxes includes reacting a C30+ alpha olefin wax with a silicone hydride polymer in the presence of a catalyst. The high softening point linear and cyclic alkylsilicone waxes have softening points approximating those of natural waxes and, in consequence, can be used in applications which traditionally employ natural waxes.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 14, 2004
    Applicant: Clariant International Ltd.
    Inventors: W. Leonard Terry, Gary E. LeGrow
  • Publication number: 20040161396
    Abstract: The present invention relates to stable aqueous emulsions of liquid alkoxytrimethylsilanes comprising a continuous aqueous phase, a discontinuous organic and/or alkoxytrimethylsilane phase and an emulsification system. The emulsification system comprises two emulsifying agents, an organosilicone hydrophobic emulsifying agent and an organosilicone hydrophilic emulsifying agent. Emulsions of this type are especially useful for delivery of liquid alkoxytrimethylsilanes to the surface and upper layers of the stratum corneum. A method for preparing these emulsions is also disclosed.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 19, 2004
    Inventor: Gary E. LeGrow
  • Patent number: 6770123
    Abstract: A protective coating for organic substrates includes an emulsion having a branched trimethylsilylated alkylsilsesquioxane. The trimethylsilylated alkylsilsesquioxane has the formula: Me3SiO[R(Me3SiO)SiO]xSiMe3 wherein R is a substituted or unsubstituted linear or branched monovalent hydrocarbon substituent with from 6 to 14 carbon atoms, Me is Methyl, and x ranges from 1 to 6. Also disclosed is a method of rendering an organic surface repellent to water, dust and dirt by treating the organic surface with an effective amount of the foregoing emulsion. The organic surface being treated can be a rubber surface such as wires, cables, the sidewall of automotive tires, footwear, and coated fabrics. The surface can also be a synthetic plastic surface such as automotive dashboards, automotive trim (both interior and exterior), automotive upholstery, flooring, residential siding, and piping.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: August 3, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Gary E. LeGrow, W. Leonard Terry, Jr.
  • Publication number: 20040016364
    Abstract: A protective coating for organic substrates includes an emulsion having a branched trimethylsilylated alkylsilsesquioxane.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Gary E. LeGrow, W. Leonard Terry
  • Publication number: 20030086888
    Abstract: The present invention relates to leave-on compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Said trimethylsilylalkylsilsesquioxanes are especially useful in formulating emulsions.
    Type: Application
    Filed: October 24, 2001
    Publication date: May 8, 2003
    Applicant: Clariant international, Ltd
    Inventors: Gary E. LeGrow, W. Leonard Terry, Ray Figueroa, Peter Klug, Waltraud Simsch, Angelika Turowski
  • Publication number: 20030082128
    Abstract: The invention relates to mixtures comprising
    Type: Application
    Filed: October 24, 2001
    Publication date: May 1, 2003
    Applicant: Clariant International, Ltd.
    Inventors: Gary E. LeGrow, Peter Klug, Waltraud Simsch
  • Publication number: 20030077240
    Abstract: The invention relates to the use of phenylsilsesquioxane liquids of the general composition
    Type: Application
    Filed: October 24, 2001
    Publication date: April 24, 2003
    Applicant: Clariant International, Ltd.
    Inventors: Gary E. LeGrow, W. Leonard Terry, Ray Figueroa
  • Publication number: 20030044372
    Abstract: The present invention relates to stable aqueous emulsions of liquid alkoxytrimethylsilanes comprising a continuous aqueous phase, a discontinuous organic and/or alkoxytrimethylsilane phase and an emulsification system. The emulsification system comprises two emulsifying agents, an organosilicone hydrophobic emulsifying agent and an organosilicone hydrophilic emulsifying agent. Emulsions of this type are especially useful for delivery of liquid alkoxytrimethylsilanes to the surface and upper layers of the stratum corneum. A method for preparing these emulsions is also disclosed.
    Type: Application
    Filed: August 30, 2001
    Publication date: March 6, 2003
    Inventor: Gary E. LeGrow
  • Patent number: 6489274
    Abstract: This invention relates to liquid rinse-off compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Preferably the rinse-off compositions are shampoos containing pearlescent and/or opacifying agents.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: December 3, 2002
    Assignee: Clariant International Ltd.
    Inventors: Gary E. LeGrow, W. Leonard Terry, Jr., Ray Figueroa, Peter Klug, Angelika Turowski
  • Patent number: 6355724
    Abstract: The present invention relates to improved and novel silicone gel compositions comprising at least one low molecular weight volatile organosilicone fluid and at least one elastomer-like silicone composition as matrix. The improved silicone gels of the invention can readily and easily be spread on the skin and possess a desirable dull appearance during application. The silicone films which result after the gel has remained on the skin about 15 to 20 minutes after application, are smooth, slippery, non-tacky and non-shiny with a low detectable residue thereof. Silicone gels applied in alkylsiloxanes exhibit significant improvements over those applied in permethylcyclosiloxanes or in other known media or by known methods.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: March 12, 2002
    Assignee: Clariant LSM (Florida), Inc.
    Inventors: Gary E. LeGrow, W. Leonard Terry
  • Patent number: 6346553
    Abstract: Alkylmethylsiloxane-dimethylsiloxane polyalkylene oxide copolymers useful as surfactants for both oil-in-water emulsions and silicone-in-water emulsions are disclosed.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: February 12, 2002
    Assignee: Archimica (Florida), Inc.
    Inventors: Gary E. LeGrow, Mark A. Buese
  • Patent number: 6267977
    Abstract: The present invention provides greater than 99% pure bis(triorganosilyl)hydroxycarboxylates of the general formulae: R3SiO—CHR1—COO—SiR3 R3SiO—CHR1—R2COO—SiR3 wherein each R is independently a monovalent straight or branched chain alkyl or alkenyl group having from 1 to about 6 carbon atoms, or an aryl group, R1 may be hydrogen, a monovalent straight or branched chain alkyl group having from 1 to about 18 carbon atoms, or an aryl group, and R2 is a divalent straight or branched chain alkyl group having from 1 to about 18 carbon atoms, an aryl group, or a straight or branched chain alkaryl group having from 7 to about 18 carbon atoms; a process for producing the bis(trimethylsilyl)hydroxycarboxylates comprising the trimethylsilylation with hexamethyldisilazane of the corresponding hydroxy carboxylic acids; cosmetic formulation comprising the greater than 99% pure bis(trimethylsilyl)hydroxycarboxylates dissolved in aprotic media; and a method of delivering hydroxycarboxyli
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 31, 2001
    Assignee: Archimica ( Florida), Inc.
    Inventors: Gary E. LeGrow, W. Leonard Terry, Jr.
  • Patent number: 6258365
    Abstract: The present invention relates to compositions comprising non-toxic and safe for human contact and ingestion volatile or non-volatile silicone-aliphatic hydrocarbon hybrid fluids and a non-volatile silicone-aliphatic hydrocarbon hybrid wax which have the physical consistency of a gel which are of use in a wide variety of personal care applications and when applied to the human skin components within these compositions adsorb quickly into the upper layers of the status corneum, while other components form non-tacky occlusive films on the outer surface of the stratum corneum.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: July 10, 2001
    Assignee: Archimica (Florida), Inc.
    Inventors: Gary E. LeGrow, W. Leonard Terry, Jr.
  • Patent number: 6228380
    Abstract: The present invention provides greater than 99% pure bis(triorganosilyl)hydroxycarboxylates of the general formulae: R3SiO—CHR1—COO—SiR3 R3SiO—CHR1—R2COO—SiR3 wherein each R is independently a monovalent straight or branched chain alkyl or alkenyl group having from 1 to about 6 carbon atoms, or an aryl group, R1 may be hydrogen, a monovalent straight or branched chain alkyl group having from 1 to about 18 carbon atoms, or an aryl group, and R2 is a divalent straight or branched chain alkyl group having from 1 to about 18 carbon atoms, an aryl group, or a straight or branched chain alkaryl group having from 7 to about 18 carbon atoms; a process for producing the bis(trimethylsilyl)hydroxycarboxylates comprising the trimethylsilylation with hexamethyldisilazane of the corresponding hydroxy carboxylic acids; cosmetic formulation comprising the greater than 99% pure bis(trimethylsilyl)hydroxycarboxylates dissolved in aprotic media; and a method of delivering hydroxycarboxyli
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: May 8, 2001
    Assignee: Archimica (Florida) Inc.
    Inventors: Gary E. LeGrow, W. Leonard Terry, Jr.
  • Patent number: 6143309
    Abstract: The present invention provides greater than 99% pure bis(triorganosilyl)hydroxycarboxylates of the general formulae:R.sub.3 SiO--CHR.sup.1 --COO--SiR.sub.3R.sub.3 SiO--CHR.sup.1 --R.sup.2 COO--SiR.sub.3wherein each R is independently a monovalent straight or branched chain alkyl or alkenyl group having from 1 to about 6 carbon atoms, or an aryl group, R.sup.1 may be hydrogen, a monovalent straight or branched chain alkyl group having from 1 to about 18 carbon atoms, or an aryl group, and R.sup.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: November 7, 2000
    Assignee: Archimica (Florida), Inc.
    Inventors: Gary E. Legrow, W. Leonard Terry, Jr.
  • Patent number: 6036967
    Abstract: The present invention relates to compositions consisting essentially of a narrow dispersity trimethylsilylated silica in a volatile and/or non-volatile silicone-aliphatic hydrocarbon hybrid fluid. Improvements in the range of properties and benefits, which the mixtures of the present invention may provide, include a broad range of viscosities, from about 100 cs to about 10000 cs, a higher % trimethylsiloxysilicate, a wider range of sensory profiles, and non-occlusivity or occlusivity. In all cases the mixtures are both clear and safe for human contact.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: March 14, 2000
    Assignee: Archimica (Florida), Inc.
    Inventor: Gary E. LeGrow
  • Patent number: 5932231
    Abstract: The invention provides high purity branched alkylsilsesquioxane containing fluids of the general formula Me.sub.3 SiO--(Me.sub.3 SiORSiO).sub.x --SiMe.sub.3, wherein Me is methyl, R is a monovalent hydrocarbon substituent, and x is 1 to 6, and an essentially zero waste process for their synthesis in quantitative yield; and especially n-octylsilsesquioxane containing fluids which are structural analogs of phenylsilsesquioxane containing fluids of the general formula Me.sub.3 SiO--(Me.sub.3 SiOPhSiO).sub.x --SiMe.sub.3, wherein Me is methyl, Ph is phenyl, x is 1 to 6, and have substantially identical sensory properties to their phenylsilsesquioxane counterparts.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: August 3, 1999
    Assignee: PCR, Inc.
    Inventors: Gary E. LeGrow, William I. Latham, III