Patents Represented by Attorney T. M. Schmitz
  • Patent number: 4624843
    Abstract: Chlorine may be recovered from residues from the fluidized bed chlorination of iron-containing metalliferous oxidic materials, such as ilmenite, bauxite, chromite, wolframite, scheelite, tantalite or columbite, the residues containing condensed iron chloride and blow-over bed solids, by heating the residue to revolatalize the iron chloride and reacting it with oxygen. The quantity of iron chloride in the oxidic material is controlled relative to the quantity of blow-over carbon so that the quantity of carbon is sufficient on combustion to provide the required heat but is insufficient to cause undue dilution of the chlorine produced by virtue of its combustion products. Chlorine of a concentration suitable for direct recycle to a chlorination process, e.g. of 30% to 50% volume concentration is produced.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: November 25, 1986
    Assignee: SCM Chemicals Limited
    Inventor: Michael Robinson
  • Patent number: 4619815
    Abstract: The process is directed to a fluidized bed chlorination of iron containing metaliferous materials to simultaneously produce a quantity of titanium beneficiate and a quantity of titanium tetrachloride. The process is controlled by maintaining the bed temperature between about 600.degree. C. and 1150.degree. C. while controlling the quantity of chlorine relative to the ratio of beneficiate to titanium tetrachloride desired.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: October 28, 1986
    Assignee: SCM Chemicals Limited
    Inventor: Michael Robinson
  • Patent number: 4594217
    Abstract: A process for making a strip or sheet comprising dispersion strengthened metal or dispersion strengthened metal alloy which comprises rolling directly from dispersion strengthened metal powder to a green strip or sheet density of from at least 90% to 95% of theoretical density, sintering the green strip or sheet in an inert atmosphere at a temperature and for a period of time sufficient to form a rigid body; reducing the thickness of the strip or sheet by at least 25% by cold rolling or hot rolling and resintering at sintering temperature of at least about 1800.degree. F. for 40 to 75 or more minutes.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: June 10, 1986
    Assignee: SCM Corporation
    Inventor: Prasanna K. Samal
  • Patent number: 4591652
    Abstract: Polyhydroxyl silanes or siloxanes useful as vehicles for coatings applicable to metal, mineral or glass surfaces, are made by reacting a silane or siloxane having an amine terminated substituent attached to silicon with an aldonic acid lactone. Reaction occurs at temperatures below 80.degree. C. in alcohol solution under inert gas blanket. Products are water soluble and polymerizable at slightly elevated temperatures to hard, water insoluble tightly adhering films.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: May 27, 1986
    Assignee: SCM Corporation
    Inventors: Ralph J. DePasquale, Michael E. Wilson
  • Patent number: 4588870
    Abstract: An improved resistance welding electrode cap adapted to being internally cooled with a flow of coolant has a main body portion with a nose root at one end and an electrical and coolant connection projecting from the other, the area of the root being substantially smaller than that of the direct projection of the main body portion, a pronounced nose projecting from the root. The whole nose is of dispersion-strengthened copper, as is at least the main body portion. Such cap provides astonishingly improved performance for resistance welding, even of galvanized steel, and particularly of double-sided, galvanized cold-rolled steel sheet.
    Type: Grant
    Filed: December 18, 1984
    Date of Patent: May 13, 1986
    Assignee: SCM Corporation
    Inventors: Anil V. Nadkarni, Prasanna K. Samal
  • Patent number: 4579966
    Abstract: Novel terpenoid alkoxysilanes having the general formula: ##STR1## wherein Y is hydrogen or Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(N-m), Z is hydrogen or Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(n+m), one of Y and Z being Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(n+m), R.sup.2 and R.sup.3 being the same or different C.sub.1 -C.sub.3 alkyl group, X is halogen, m and n are independently selected from 1 and 0, and II W is Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(n+m), where R.sup.2, R.sup.3, X, n and m are as defined above.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: April 1, 1986
    Assignee: SCM Corporation
    Inventors: Ralph J. De Pasquale, Paul W. Kremer
  • Patent number: 4557767
    Abstract: There is provided an inorganic salt-free, anhydrous, noncorrosive powdered solder metal paste and vehicle therefor which vehicle is characterized by the presence therein of a flux and a nonaqueous organic liquid having a surface tension or surface energy of from 43 to 65 dynes/cm. and higher at 20.degree. C. When powdered solder metal or powdered solder metal alloy is distributed in such a vehicle in an amount sufficient to form a paste, a deposit will not undergo hot slump at elevated temperatures. The pastes and vehicles are free of inorganic metal salts.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: December 10, 1985
    Assignee: SCM Corporation
    Inventor: Jennie S. Hwang
  • Patent number: 4551570
    Abstract: A process for isomerizing limonene to terpinolene in the presence of an acidic catalyst and in the presence of a buffer.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: November 5, 1985
    Assignee: SCM Corporation
    Inventor: Walter E. Johnson, Jr.
  • Patent number: 4546184
    Abstract: The invention relates to a novel fluorinated pre-polymer and novel process steps in producing the same. The pre-polymers are quinoxaline materials derived by reaction of diketone linkage containing perfluoro-compounds with an aromatic diamine. The diketone is produced by oxidatively dechlorinating a polychloroketone which may be a monoketone or a bis-ketone. The polychloroketone is produced by reacting a keto-ylid with a chlorinating agent, e.g., chlorine. The keto-ylid is produced by reacting a phosphorane with an acid halide of a polyoxy-perfluoroalkylene oxide wherein the perfluoro-oxyalkylene group contains two or three carbon atoms, and there are present from two to twenty perfluoro-oxyalkylene units in the oligomer. The quinoxalines, the polychloroketones and the diketones hereof are novel products. Cross-linking may be effected with a free radical generator.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: October 8, 1985
    Assignee: SCM Corporation
    Inventor: Keith B. Baucom
  • Patent number: 4541876
    Abstract: There is provided a nonaqueous powdered metal paste composition and a vehicle therefor, characterized by resistance to slumping upon heating to the fusion point of the metal, fusion point being above 500.degree. C., including the powdered metal, and an organic material having a surface tension of from 43 to 65 or higher dynes/cm. at 20.degree. C.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: September 17, 1985
    Assignee: SCM Corporation
    Inventor: Jennie S. Hwang
  • Patent number: 4540551
    Abstract: There is provided a multi stage process for nonselectively chlorinating a titaniferous ore containing iron to produce TiCl.sub.4. In this process a portion of the ore charge is subjected to conventional fluid bed chlorination to produce TiCl.sub.4 and FeCl.sub.2. A second portion is subdivided and submitted to chlorination in a dilute phase chlorination step using FeCl.sub.3 as the chlorinating agent to produce additional TiCl.sub.4. The FeCl.sub.3 is obtained by partial oxidation of the FeCl.sub.2 obtained in the first stage and/or second stage to yield Fe.sub.2 O.sub.3 and FeCl.sub.3. The product streams of TiCl.sub.4 are then combined for further treatment.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: September 10, 1985
    Assignee: SCM Corporation
    Inventors: James P. Bonsack, Semyon D. Fridman
  • Patent number: 4533751
    Abstract: There is provided a process for the addition of a secondary aliphatic amine to myrcene or an 8-substituted myrcene and isomerization to a dialkyl 1,3-dienamine. The process is liquid phase and employs an excess of the amine relative to myrcene or substituted myrcene. The catalyst is an alkali metal amide anion formed from the amine.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: August 6, 1985
    Assignee: SCM Corporation
    Inventors: Leon Cherney, Charles R. Gorman, Sean G. Traynor, Carlos G. Cardenas
  • Patent number: 4519988
    Abstract: There is provided an improved process for chlorinating an iron-containing titaniferous ore, such as ilmenite which comprises dividing the ore charge into 2 parts. The first and major part is chlorinated with chlorine or with a mixture of chlorine and FeCl.sub.3 under fluidized bed conditions to yield principally TiCl.sub.4 and FeCl.sub.2. The FeCl.sub.2 is separated out and utilized as a chlorinating agent for the minor part of the ore in an entrained flow chlorinator to yield more TiCl.sub.4 and metallic iron as principal products. This process avoids the need for disposal of FeCl.sub.2 and retains the advantages of conventional chlorination procedures.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: May 28, 1985
    Assignee: SCM Corporation
    Inventor: Semyon D. Fridman
  • Patent number: 4520130
    Abstract: An improvement in process for making cupreous catalyst composition, wherein a copper oxide-preponderant grind charge derived from the oxidation of elemental copper and/or an alloy thereof is subject to high energy milling with concomitant crystal lattice distortion until the average particle of the resulting grind is no larger than about 20 microns, comprises establishing a tin concentration between about 400 and about 3000 ppm in said composition prior to or after said high energy milling. The resulting catalyst is useful for producing organohalosilane from alkyl chloride and silicon.
    Type: Grant
    Filed: May 8, 1984
    Date of Patent: May 28, 1985
    Assignee: SCM Corporation
    Inventors: Don H. Hashiguchi, Erhard Klar, Ronald J. Dietrich