Patents Represented by Attorney James F. Mudd
  • Patent number: 4853446
    Abstract: A composition having the formula ##STR1## wherein n has an average value of one to about five, is disclosed for use in reducing or eliminating the formation of reactor scale during the polymerization of vinyl chloride and comonomers. The composition is prepared by reacting phenothiazine with formaldehyde in the presence of a liquid diluent that is a solvent for the phenothiazine, but a non-solvent for the dimer of phenothiazine and formaldehyde. The process of the invention is preferably conducted in the presence of a strong acid catalyst. The formaldehyde is preferably added slowly to the reaction mixture over the course of the reaction. The product can be filtered and dried.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: August 1, 1989
    Assignee: Occidental Chemical Corporation
    Inventors: Raymond C. DeWald, Paul O. Hong
  • Patent number: 4829131
    Abstract: Substantilly fully imidized polyimidesiloxanes which are based on a mixture consisting essentially of a biphenyl tetracarboxylic dianhydride and a benzophenone tetracarboxylic dianhydride, are soluble in diglyme which gives them particular utility in the micro-electronics industry. The polymers are prepared from the mixture of dianhydrides, a difunctional siloxane monomer and an organic diamine. Diamines can be used to provide an asymmetrical structure in the polyimidesiloxane polymer chain. The polyimidesiloxane can be prepared with functional groups which render them directly curable. The polyimidesiloxanes can also be prepared with functional groups which when reacted with an unsaturated compound renders the polymers curable. The products of the invention can be used in the form of solutions in the micro-electronic industry. The polymers can also be used in wire and cable coating and to prepare films, fibers, and molded and extruded articles.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: May 9, 1989
    Assignee: Occidental Chemical Corporation
    Inventor: Chung J. Lee
  • Patent number: 4808760
    Abstract: Telomers are prepared by reacting chlorotrifluoroethylene with 1,2-dibromo-2-chlorotrifluoroethane (CBrClFCF.sub.2 Br) in the presence of a redox catalyst system comprising a metal halide selected from the group consisting of FeCl.sub.3, FeBr.sub.3, CuBr.sub.2, CuCl.sub.2, TiCl.sub.4, VCl.sub.3, and NiCl.sub.2, and a reducing agent selected from the group consisting of Fe, Ni, Cu, Ti, V and benzoin. The preferred catalyst system is ferric chloride and nickel. The telomers of this invention have the structural formula ##STR1## where n is in the range of 1 to 10, and are useful for preparing non-flammable hydraulic fluids.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: February 28, 1989
    Assignee: Occidental Chemical Corporation
    Inventors: Bobby F. Dannels, Michael J. Fifolt, David Y. Tang
  • Patent number: 4806581
    Abstract: Graft polymers are prepared by reacting an ethylenically unsaturated polymerizable monomer with a polymer of an olefin of 2 to about 8 carbon atoms in a process wherein the olefin polymer is substantially insoluble in the monomer but is capable of absorbing the monomer. In a preferred aspect, a vinyl halide polyolefin graft polymer is produced by reacting a solid polyolefin particle with a vinyl halide monomer in which the polyolefin is substantially insoluble, but is capable of absorbing the monomer. The solid particles can be contacted with the monomer in one step or in stages. When the stage-wise reaction is continued until the proportion of polyolefin in the polymer product is about 2 to about 20 weight percent, the resulting product can be formed to a transparent or translucent article.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: February 21, 1989
    Assignee: Occidental Chemical Corporation
    Inventor: Leigh E. Walker
  • Patent number: 4794051
    Abstract: Phenolic molding compositions, particularly useful as sheet molding compounds comprise:(a) a resole phenolic resin,(b) a curing agent selected from the group consisting of alkaline earth metal oxides or hydroxides and silanes,(c) a filler,(d) a lactone such as butyrolactone, and(e) a fiber reinforcement.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: December 27, 1988
    Assignee: Occidental Chemical Corporation
    Inventor: Manoj K. Gupta
  • Patent number: 4785040
    Abstract: Novel phenolic molding compositions comprise (1) a resole phenolic resin, (2) an alkaline earth metal hydroxide or oxide, and/or a silane compound, and (3) a mixture of clay and talc fillers and/or microballoons. The composition also generally contains a mold release agent, and a silane coupling agent. The alkaline earth metal hydroxide or oxide is preferably calcium and/or magnesium hydroxide or oxide. A mixture of the calcium and magnesium compounds is most preferred. The foregoing molding compositions are applied to glass fibers or filaments to provide compositions useful in sheet molding compound processes, pultrusion processes, filament winding, and continuous laminating processes, as well as in ram injection molding and transfer molding.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: November 15, 1988
    Assignee: Occidental Chemical Corporation
    Inventors: Manoj K. Gupta, Donald W. Hoch, Gideon Salee
  • Patent number: 4780141
    Abstract: Cementitious composite materials having high strength, vacuum integrity, good thermal properties and low coefficient of thermal expansion are prepared from a mixture of(1) a high strength cement matrix, and(2) a filler component, comprising a metal fiber.These composites are useful in the manufacture of molds and tools for forming metals and plastics. A preferred composite mixture comprising Portland cement, chemically reactive silica particles, inorganic oxide particles, a cement superplasticizer, an irregularly shaped aggregate, metal fibers, and water. The mixtures preferably contain chemically reactive silica fume particles and reactive silica particles such as crystalline silica or quartz particles or a vitreous/glassy form of silicon. The mixtures preferably comprise stainless steel fibers and stainless steel aggregate. High nickel steel and silicon carbide can be used as aggregate in applications requiring low coefficient of thermal expansion.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: October 25, 1988
    Assignee: CEMCOM Corporation
    Inventors: David D. Double, Sean Wise
  • Patent number: 4775742
    Abstract: A process is disclosed for producing vinyl halide homopolymers and copolymers that are suitable for use in clear solutions. The process comprises reacting vinyl halide and optional co-monomers in the presence of an aqueous medium containing a suspending agent, and treating the resulting resin particles with an acidic material. The resins resulting from the process of the invention have improved solution and film properties. When the resin is dissolved in a suitable solvent, the resulting solution has improved clarity, that is, a reduction of haze in the solution phase. When the solution is coated on a substrate and the solvent evaporated, either to provide a coated substrate or a cast film, the resulting films have improved clarity, that is, a reduction in haze in the film. The films and coatings have improved gloss as a result of reduction of seed particles in the film. Fibers produced from the resin solutions have improved integrity and strength.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: October 4, 1988
    Assignee: Occidental Chemical Corporaton
    Inventor: Stephen T. Fitzpatrick
  • Patent number: 4766243
    Abstract: A process for the electrophilic ring fluorination of aromatic compounds which comprises reacting a fluorinating agent from the group consisting of CF.sub.3 OF and CF.sub.2 (OF).sub.2 with an aromatic compound of the formula ##STR1## where X is selected from the group consisting of ##STR2## and ##STR3## and Y is selected from the group consisting of --H, --CF.sub.3, --CN, --NO.sub.2, --Cl, and CH.sub.3.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: August 23, 1988
    Assignee: Occidental Chemical Corporation
    Inventor: Michael J. Fifolt
  • Patent number: 4732953
    Abstract: A polyvinyl chloride having high bulk density and enhanced plasticizer absorption is produced by suspension polymerization of vinyl chloride monomer and comonomers wherein the initial suspension of ingredients is generated such that the oil phase droplets formed in the suspension are compositionally equivalent with respect to initiator, and the level of suspending agent and agitation are chosen to substantially preclude agglomeration of resin particles throughout the reaction, thereby producing resin wherein the resin grain size distribution results directly from the oil phase droplet distribution created at or near the start of the reaction. The process is conducted under conditions so that the polymerization is commenced before the final distribution is established. In this manner, seed particles of resin are produced from the vinyl monomer prior to establishing the final particle distribution.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: March 22, 1988
    Assignee: Occidental Chemical Corporation
    Inventors: William F. Carroll, Jr., Stephen T. Fitzpatrick, John M. Ogorzalek, Edward P. Tefft
  • Patent number: 4732954
    Abstract: A polyvinyl chloride having high bulk density and enhanced plasticizer absorption is produced by suspension polymerization of vinyl chloride monomer and comonomers wherein the initial suspension of ingredients is generated such that the oil phase droplets formed in the suspension are compositionally equivalent with respect to initiator, and the level of suspending agent and agitation are chosen to substantially preclude agglomeration of resin particles throughout the reaction, thereby producing resin wherein the resin grain size distribution results directly from the oil phase droplet distribution created at or near the start of the reaction. The process is conducted under conditions so that the polymerization is commenced before the final distribution is established. In this manner, seed particles of resin are produced from the vinyl monomer prior to establishing the final particle distribution.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: March 22, 1988
    Assignee: Occidental Chemical Corporation
    Inventors: William F. Carroll, Jr., Stephen T. Fitzpatrick
  • Patent number: 4698370
    Abstract: A phenolic resin composite foam is disclosed which is prepared by heating and foaming a novolak phenolic resin having a number average molecular weight of 250 to 600 and a bulk density of 0.15 to 0.5, a blowing agent, a blowing auxiliary compound and inorganic foamed particles. Additional materials for flame retardancy can be added. The foam produced has a high compressive strength, a high foaming and rapid curing rates, a low water absorption and a minimum of friability.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: October 6, 1987
    Assignee: Sumitomo Durez Company, Ltd.
    Inventors: Yukio Saeki, Naomitsu Inoue, Yukio Tokunaga
  • Patent number: 4694028
    Abstract: This invention is concerned with a method for producing phenol resin foam possessing a compact cellular structure, a high closed cell ratio and improved heat resistance. The method consists of using a resole type phenolic resin having a number average molecular weight of 150-400, surface active agents, blowing agents and curing agents, wherein at least two surface active agents are chosen from general formulas A and B, but a selection of each type must be employed ##STR1## where R.sub.1 is a saturated aliphatic hydrocarbon group of 8-14 carbon atoms and/or a 2-phenylpropyl group, and m and n are integers and meet the requirement: ##EQU1## R.sub.2 is a saturated aliphatic hydrocarbon group of 4-12 carbon atoms, M is a hydrogen atom or SO.sub.2 Na, and x is an integer of 4-110.
    Type: Grant
    Filed: April 5, 1986
    Date of Patent: September 15, 1987
    Assignee: Sumitomo Durez Company, Ltd.
    Inventors: Yukio Saeki, Naomitsu Inoue, Yukio Tokunaga
  • Patent number: 4661549
    Abstract: Graft polymers are prepared by reacting an ethylenically unsaturated polymerizable monomer with a polymer of an olefin of 2 to about 8 carbon atoms in a process wherein the olefin polymer is substantially insoluble in the monomer but is capable of absorbing the monomer. In a preferred aspect, a vinyl halide polyolefin graft polymer is produced by reacting a solid polyolefin particle with a vinyl halide monomer in which the polyolefin is substantially insoluble, but is capable of absorbing the monomer. The solid particles can be contacted with the monomer in one step or in stages. When the stage-wise reaction is continued until the proportion of polyolefin in the polymer product is about 2 to about 20 weight percent, the resulting product can be formed to a transparent or translucent article.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: April 28, 1987
    Assignee: Occidental Chemical Corporation
    Inventor: Leigh E. Walker
  • Patent number: 4647631
    Abstract: A resinous composition for friction materials, especially for non-asbestos type friction materials is disclosed. The composition is composed of a phenolic resin modified by the reaction product of an acrylonitrile-butadiene liquid rubber with an epoxy resin, and further modification with a triazine resin. This composition when blended with non-asbestos fibers, such as fiberglass, etc., retains the flexibility desired, provides excellent friction characteristics and a reduced wear rate.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: March 3, 1987
    Assignee: Sumitomo Durez Company, Ltd.
    Inventors: Kenichi Noguchi, Kazuhisa Hirano
  • Patent number: 4612254
    Abstract: Novel metal-modified phenolic resins useful in the color developer part of a carbonless copy paper system are disclosed, as well as methods for preparing such resins. The metal-modified phenolic resins are reaction products of an aromatic carboxylic acid and a partial condensation reaction product (an oligomer) of a phenol and an aldehyde. The metal-containing compound is added either to the mixture of phenol and aldehyde in forming the oligomer or to the mixture of aromatic carboxylic acid and the oligomer. The color developer materials of the invention are coated on a paper substrate which forms a part of a pressure sensitive recording paper system. The color developer materials exhibit improved performance over prior art colored developer materials.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: September 16, 1986
    Assignee: Occidental Chemical Corporation
    Inventors: James W. Ginter, Donald H. Thorpe, Victor F. G. Cooke
  • Patent number: 4605704
    Abstract: Graft polymers are prepared by reacting an ethylenically unsaturated polymerizable monomer with a polymer of an olefin of 2 to about 8 carbon atoms in a process wherein the olefin polymer is substantially insoluble in the monomer but is capable of absorbing the monomer. In a preferred aspect, a vinyl halide polyolefin graft polymer is produced by reacting a solid polyolefin particle with a vinyl halide monomer in which the polyolefin is substantially insoluble, but is capable of absorbing the monomer. The solid particles can be contacted with the monomer in one step or in stages. When the stage-wise reaction is continued until the proportion of polyolefin in the polymer product is about 2 to abut 20 weight percent, the resulting product can be formed to a transparent or translucent article.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: August 12, 1986
    Assignee: Occidental Chemical Corporation
    Inventors: David W. Eastman, Leigh E. Walker
  • Patent number: 4604436
    Abstract: A complex coordination compound of a novolac phenolic resin with zinc, copper, cobalt, cadmium, aluminum, indium, tin, chromium, cobalt or nickel is prepared by reaction of an oxide of the metal or an inorganic functional equivalent of the oxide, an alkanoic or aromatic monocarboxylic acid and an ammonia base. The resin product is useful as a color developer for coating of the record sheet of a chemical carbonless copying sheet system.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: August 5, 1986
    Assignee: Occidental Chemical Corporation
    Inventors: Donald H. Thorpe, Raymond P. Knipple
  • Patent number: 4593060
    Abstract: Smoke retardant compositions comprise a polyvinyl halide resin and a smoke retardant proportion of tin oxalate or calcium oxalate. Small amounts of zinc oxide, magnesium oxide or titanium oxide can also be included to provide cost effective smoke and fire retardant compositions. In flexible compositions a fire retardant additive such as aluminum trihydrate is used.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: June 3, 1986
    Assignee: Occidental Chemical Corporation
    Inventors: Manoj K. Gupta, Gideon Salee
  • Patent number: 4587297
    Abstract: A novel thermoplastic polymer composition comprises a blend of polyolefin graft polymer, and a condensation polymer such as a polycarbonate, a polyester of bisphenol and phthalic acids, or a polyalkylene terephthalate.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: May 6, 1986
    Assignee: Occidental Chemical Corporation
    Inventors: Leigh E. Walker, Gautam R. Ranade