Patents by Inventor John L. Speier

John L. Speier 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: 5210168
    Abstract: The present invention relates to a novel method of preparing siloxane bonds. The method comprises reacting less than or equal to 1 equivalent of a carboxylic acid with 2 equivalents of alkoxy groups on an alkoxysilane in the presence of a strong acid.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: May 11, 1993
    Assignee: Dow Corning Corporation
    Inventors: Debora F. Bergstrom, Binh T. Nguyen, John L. Speier, Ming-Shin Tzuo
  • Patent number: 5177234
    Abstract: The present invention is a process for preparing alkoxysilanes by the contact of silicon with a solution of hydrogen fluoride in a liquid primary or secondary alcohol. The hydrogen fluoride activates the silicon causing the formation of alkoxysilanes to occur more rapidly and can provide selectivity for the production of dialkoxysilanes and trialkoxysilanes. The process may be run in the presence of copper or a copper compound as a catalyst. The process is advantageously run using atomized silicon.
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: January 5, 1993
    Assignee: Dow Corning Corporation
    Inventors: Binh T. Nguyen, John L. Speier
  • Patent number: 5175330
    Abstract: Disclosed herein is a process of recovering hydrogen chloride and monomeric alkoxysilanes from mixtures of chlorine-containing silicon compounds wherein waste chlorine-containing silicon compounds, for example, are converted to useful, valuable silicon intermediates.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: December 29, 1992
    Assignee: Dow Corning Corporation
    Inventor: John L. Speier
  • Patent number: 5126470
    Abstract: This invention relates to a non-aqueous method for preparing disiloxanes, copolymeric siloxanes, and cyclic siloxanes containing phenyl, higher alkyl, and certain reactive groups bonded to silicon atoms using selenium dioxide as a catalyst. The siloxanes which are formed using this method can be separated from the reaction mixture and purified.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: June 30, 1992
    Assignee: Dow Corning Corporation
    Inventors: William J. Schulz, Jr., John L. Speier
  • Patent number: 5068387
    Abstract: The present invention relates to a process for the production of mixtures of novel organofunctional alkoxysilanes by the reaction of mixtures of certain substituted organic halides and chlorosilanes with molten sodium dispersed in alkoxysilanes. In the described process, the substituted organic groups of the organic halide replace alkoxy groups of the alkoxysilanes. Also claimed, are organofunctional alkoxysilanes prepared by the claimed process.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: November 26, 1991
    Assignee: Dow Corning Corporation
    Inventors: Don L. Kleyer, John L. Speier
  • Patent number: 4824980
    Abstract: A process for preparing O-silyl O,N-ketene acetals having the formula, ##STR1## The process comprises contacting an alpha-haloamide with an alkali metal in the presence of an excess of an organohalosilane, the alpha-haloamide having the formula, ##STR2## the organohalosilane having the formula,R.sub.n SiX.sub.4-n ;and facilitating reaction among the alpha-haloamide, the alkali metal, and the organohalosilane to form the O-silyl O,N-ketene acetal and alkali metal halides.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: April 25, 1989
    Assignee: Dow Corning Corporation
    Inventors: William J. Schulz, Jr., John L. Speier
  • Patent number: 4783543
    Abstract: A process for the preparation of silyl ketene acetals of the formula,R.sub.2 C.dbd.C(OSiR.sub.n X.sub.3-n)(OZ)or ##STR1## The process comprises contacting an alpha-ester of a carboxylic acid with an alkali metal in the presence of an excess of an organohalosilane, wherein the alpha-ester has the formula, ##STR2## and the organohalosilane has the formula,R.sub.n SiX.sub.4-n ;and facilitating reaction among the alpha-ester, the alkali metal, and the organochlorosilane to form the silyl ketene acetal and an alkali metal halide or an alkali metal alkoxide.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: November 8, 1988
    Assignee: Dow Corning Corporation
    Inventors: William J. Schulz, Jr., John L. Speier
  • Patent number: 4719024
    Abstract: The invention relates to methylalkylcyclosiloxanes wherein each silicon atom in the siloxane ring has a methyl attached and each siloxane ring has at least two different non-methyl alkyl groups. The methylalkylcyclosiloxanes display a wide range of viscosity and thermal stability.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: January 12, 1988
    Assignee: Dow Corning Corporation
    Inventors: John L. Speier, James R. Malek
  • Patent number: 4701289
    Abstract: Described are methods and apparati for the rapid solidification of molten materials into finely divided particulate form. Molten material is atomized by a centrifugal atomizer which includes a rotating member with vanes which accelerate and atomize the molten material. The mist of atomized molten material thus produced is introduced into a mist of atomized liquid coolant or a mist of finely divided volatile solid coolant or a mixture thereof. The heat of solidification of the mist of molten material is rapidly transferred to the mist of coolant whereby the molten material solidifies into fine particles.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: October 20, 1987
    Assignee: Dow Corning Corporation
    Inventors: Donald T. Liles, John L. Speier
  • Patent number: 4419060
    Abstract: Described is an apparatus for freezing molten metals and metalloids in particulate or flake form at very rapid cooling rates. A volatile coolant liquid is fed to the center of a rapidly rotating disc-like member to create an outwardly flowing film of coolant across the surface of the member. The material to be processed is fed in molten form to the coolant film coaxially with the coolant, and is thrown outwardly by centrifugal forces while being cooled by vaporization of the liquid. The rotating member may include upwardly projecting vanes for collision with the outwardly flowing material to produce a higher surface area product and a cover over a portion of its top surface to confine the materials passing through the vanes.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: December 6, 1983
    Assignee: Dow Corning Corporation
    Inventors: John L. Speier, Donald T. Liles
  • Patent number: 4347199
    Abstract: Described are a method and apparatus for freezing molten metals and metalloids in particulate or flake form at very rapid cooling rates. A volatile coolant liquid is fed to the center of a rapidly rotating disc-like member to create an outwardly flowing film of coolant across the surface of the member. The material to be processed is fed to the coolant film at a location spaced from the center and is thrown outwardly by centrifugal forces while being cooled by vaporization of the liquid. The rotating member may include upwardly projecting vanes for collision with the outwardly flowing material to produce a higher surface area product.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: August 31, 1982
    Assignee: Dow Corning Corporation
    Inventors: John L. Speier, Thomas M. Gentle
  • Patent number: 4329483
    Abstract: A method for preparing cyclotetrasiloxane, aliphatic chlorides and/or acyl chlorides from a chlorosilane and an acyloxy compound is disclosed. The chlorosilane and the acyloxy compound may be present as substantially equimolar amounts of separate compounds or they may be present in the same molecule in equimolar amounts. The reactants are merely heated sufficiently, with or without a soluble halide salt catalyst, to form the products. Advantageously this method can provide cyclotetrasiloxanes having water-sensitive radicals such as silicon-bonded chlorine atoms and/or silicon-bonded acyl chloride radicals.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: May 11, 1982
    Assignee: Dow Corning Corporation
    Inventor: John L. Speier
  • Patent number: 4259103
    Abstract: What is disclosed is a method of reducing microorganisms by contacting the microorganisms with the surface of a substrate which has been altered by contacting a substrate which develops a negative charge in water with a substance that ionizes in water to form cations and anions, which cations absorb to the substrate by a process of ion exchange in which protons are replaced by the cations of the ionizing substance. The altered surfaces can include hospital sheeting, clothing and a wide variety of surfaces which come into contact with microorganisms.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: March 31, 1981
    Assignee: Dow Corning Corporation
    Inventors: James R. Malek, John L. Speier
  • Patent number: 4125552
    Abstract: Alkyl polysulfides are prepared by reacting alkyl halides with hydrogen sulfide and sulfur in the presence of ammonia or certain monoamines.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: November 14, 1978
    Assignee: Dow Corning Corporation
    Inventor: John L. Speier
  • Patent number: 4088669
    Abstract: Organosilicon compounds bearing silicon-bonded hydrocarbon radicals and silicon-bonded hydrocarbonoxy radicals are obtained by contacting activated silicon, a hydrocarbon ether and a halogen-containing catalyst in a closed system at elevated temperature. Silanes and siloxanes, particularly methylmethoxysilanes, may be prepared and used to prepare valuable silicone materials.
    Type: Grant
    Filed: April 8, 1977
    Date of Patent: May 9, 1978
    Assignee: Dow Corning Corporation
    Inventors: James R. Malek, John L. Speier, Antony P. Wright
  • Patent number: 4082790
    Abstract: Mercaptans are prepared by reacting an organic chloride or bromide with a mixture of H.sub.2 S and ammonia or an amine at a temperature of 0.degree. to 175.degree. C. under autogenous pressure. The reaction can be carried out in the presence of a polar solvent. For example, 3-chloropropyltrimethoxysilane is mixed with H.sub.2 S and ammonia in methanol and heated in a closed container at 100.degree. C. for 18 hours.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: April 4, 1978
    Assignee: Dow Corning Corporation
    Inventor: John L. Speier
  • Patent number: 4064155
    Abstract: Silylamine hydrochlorides are prepared by reacting a silane of the formula (RO).sub.n R'.sub.3-n SiR''Cl with at least two moles of an amine and thereafter volatilizing the amine to obtain a hydrochloride of the formula (RO).sub.n R'.sub.3-n SiR''NR'''.sub.2.HCl.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: December 20, 1977
    Assignee: Dow Corning Corporation
    Inventor: John L. Speier