Patents Represented by Attorney Lewis J. Young

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  • Method of supporting a catalyst on polyolefins
    Patent number: 4407727
    Abstract: A process is provided for transforming a polyolefin powder into a suitable substrate for the preparation of transition metal catalysts. A powder polyolefin such as polyethylene or polypropylene is treated with a solution of a magnesium alkyl. The solvent is removed by any suitable procedure such as vacuum drying. The powder is then treated with gaseous HCl or other agent suitable for decomposition of the magnesium alkyl. The powder thus prepared is an effective support for preparing high efficiency catalysts such as taught in U.S. Pat. No. 4,136,058. These catalysts give polymers of increased particle size. Polyolefin powder in the absence of such treatment is not effective as a catalyst support and will not give polymers of increased particle size.
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: October 4, 1983
    Assignee: Atlantic Richfield Company
    Inventors: James J. Harris, Donald E. Hostetler
  • Star elastomers in footwear compounds
    Patent number: 4408006
    Abstract: Footwear compounds having greater hardness of compound and more resistance to motor oils have been prepared starting with star-block elastomers of monovinyl aromatic compounds and conjugated dienes. The star-block elastomers have 7 to 12 arms.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: October 4, 1983
    Assignee: Atlantic Richfield Company
    Inventors: Ralph Milkovich, David R. Warfel
  • Coated beads with macromonomer-styrene polymerizate coating
    Patent number: 4386133
    Abstract: Coated beads which exhibit anti-lumping properties upon pre-expansion and which are useful in the formation of soft expanded articles are prepared by coating initial polystyrene beads, in suspension, with a coating composition comprising styrene and a macromonomer of styrene and isoprene or styrene and butadiene, the coating compositions added to the suspension as an aqueous emulsion containing a catalyst and a polyoxyethylene ether of nonylphenol or octylphenol as surfactant.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: May 31, 1983
    Assignee: Atlantic Richfield Company
    Inventors: Elizabeth A. Blommers, David R. Warfel, Alvin R. Ingram
  • Process for producing coated styrenic polymer beads for heat resistant foams
    Patent number: 4385156
    Abstract: Styrenic polymer expandable beads that are useful in forming heat-resistant foamed articles are prepared by forming an aqueous suspension of initial styrenic polymer beads and adding thereto a portion of a comonomer solution of styrenic monomer and methacrylic acid, which solution also contains a polymerization regulator, forming an emulsion of catalyst, monomer solution and polyvinyl alcohol suspending agent, adding portions of the emulsion to the suspension and then adding the remainder of the comonomer solution to the suspension, and the suspension with added monomers is heated to copolymerize the styrenic monomer and methacrylic acid about the initial beads and form a coating about the beads.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: May 24, 1983
    Assignee: Atlantic Richfield Company
    Inventors: Alvin R. Ingram, Harold A. Wright, Walter O. Pillar, Adolph V. DiGiulio, Kenneth D. Thom
  • Semi-continuous process for making star-block copolymers
    Patent number: 4371661
    Abstract: A semi-continuous process for the preparation of star-block copolymers of 25-55% by weight of monovinyl aromatic compound and 45-75% by weight of conjugated diene monomer has been developed. The process reduces the time needed to produce the copolymer by shortening reaction time and eliminating the need for costly cleanout between runs.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: February 1, 1983
    Assignee: Atlantic Richfield Company
    Inventor: Harold L. Nicholson
  • Coating with dusting agents in pelletizing tacky elastomeric materials
    Patent number: 4359492
    Abstract: Thermoplastic elastomers useful in formulating certain pressure-sensitive hot-melt adhesives are normally very tacky and thus are hard to handle. The present invention relates to a method of eliminating problems due to this tackiness by dusting the elastomer pellets with a friable polymer resin having a ring and ball softening point of at least 95.degree. C. Selection of a polymer resin which is normally used in adhesive formulations allows one to overcome tackiness without having detrimental effects on the ultimate adhesive properties of formulations based on the elastomer.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: November 16, 1982
    Assignee: Atlantic Richfield Company
    Inventor: James A. Schlademan
  • Continuous process for making star-block copolymers
    Patent number: 4346193
    Abstract: A continuous anionic solution process for preparing star-block copolymers of monovinylaromatic compounds and conjugated dienes having either monomodal or bimodal arm structure is described. The process utilizes a continuous tubular reactor made up of a sequence of four static mixer zones followed by a pressure control valve.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: August 24, 1982
    Assignee: Atlantic Richfield Company
    Inventor: David R. Warfel
  • Clear impact resistant thermoplastic star-block copolymers
    Patent number: 4346198
    Abstract: The preparation of a branched, radial block copolymer having improved falling weight impact properties, and having monomodal distribution of molecular structure in the arms of the block copolymer is described.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: August 24, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Kenneth Doak, Le-Khac Bi, Ralph Milkovich
  • Process for producing coated beads with macromonomer-styrene polymerizate coating
    Patent number: 4333970
    Abstract: Coated beads which exhibit anti-lumping properties upon pre-expansion and which are useful in the formation of soft expanded articles are prepared by coating initial polystyrene beads, in suspension, with a coating composition comprising styrene and a macromonomer of styrene and isoprene or styrene and butadiene, the coating compositions added to the suspension as an aqueous emulsion containing a catalyst and a polyoxyethylene ether of nonylphenol or octylphenol as surfactant.
    Type: Grant
    Filed: December 23, 1980
    Date of Patent: June 8, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Elizabeth A. Blommers, David R. Warfel, Alvin R. Ingram
  • Process for producing styrenic polymer beads of preferred bead size
    Patent number: 4333969
    Abstract: Styrenic polymer beads of a preferred size are produced from styrenic polymer beads of a smaller size by forming an aqueous suspension of the styrenic polymer beads and adding thereto, under polymerization conditions, an aqueous emulsion formed by admixing styrenic monomer and a catalyst therefor with water containing a nonionic surfactant that is an ethylene oxide condensate of an alkylphenol, which contains at least fifty moles of ethylene oxide per mole of alkylphenol. The beads of preferred size are formed without formation of fine styrenic polymer particles and without significant amounts of clusters of beads.
    Type: Grant
    Filed: December 23, 1980
    Date of Patent: June 8, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Harold A. Wright, Alvin R. Ingram
  • Direct production of elastomer compound from reactor solution
    Patent number: 4332760
    Abstract: A method of preparing oil-extended elastomer and shoe sole compound as an integral part of the anionic polymerization process for making elastomer is presented. The method eliminates the step of isolating the neat elastomer and of reheating the elastomer to compound it into the final product.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: June 1, 1982
    Assignee: Atlantic Richfield Company
    Inventor: David R. Warfel
  • Fire-retardant anhydride copolymers
    Patent number: 4327197
    Abstract: Copolymers of monovinyl aromatic monomers and the anhydrides of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of between 1 and 10 pounds per cubic foot, said composition having fire retardant properties.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: April 27, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Adolph V. Di Giulio, Jack N. Bauer
  • Fire-retardant monocarboxylic acid copolymers
    Patent number: 4326044
    Abstract: Copolymers of monovinyl aromatic monomers and ethylenically unsaturated monocarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of between 1 and 10 pounds per cubic foot, said foam composition having fire-retardant properties.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: April 20, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Adolph V. DiGiulio, Jack N. Bauer
  • Rubber-modified fire-retardant anhydride copolymers
    Patent number: 4323655
    Abstract: Rubber-modified copolymers of monovinyl aromatic monomers and the anhydride of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of between 1 and 10 pounds per cubic foot, said foam composition having fire-retardant properties.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: April 6, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Adolph V. DiGiulio, Jack N. Bauer
  • Fast-cooling styrene polymer foams
    Patent number: 4312957
    Abstract: Expandable styrene polymer particles which have fast cooling rates during molding are produuced by suspending styrene polymer particles in an aqueous medium and impregnating a blowing agent into the particles in the presence of 0.1 to 0.6 parts of a synergistic mixture of surfactants per 100 parts of polymer particles.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: January 26, 1982
    Assignee: Atlantic Richfield Company
    Inventor: John P. Spicuzza, Jr.
  • Fire-retardant, rubber-modified, monocarboxylic acid copolymers
    Patent number: 4312958
    Abstract: Rubber-modified copolymers of monovinyl aromatic monomers and ethylenically unsaturated monocarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of between 1 and 10 pounds per cubic foot, said foam composition having fire-retardant properties.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: January 26, 1982
    Assignee: Atlantic Richfield Company
    Inventors: Adolph V. DiGiulio, Jack N. Bauer
  • Process for producing plasticized elastomer-styrene coated beads
    Patent number: 4307134
    Abstract: Polymeric beads for use in forming soft molded articles of low density are produced by formation of a plasticized elastomer-styrene polymeric coating about initial styrene beads, by forming an aqueous suspension of the initial beads, adding thereto an aqueous emulsion of a coating composition consisting of styrenic monomer, a conjugated diene elastomer, and a plasticizer, containing a catalyst and a nonionic surfactant comprising an ethylene oxide condensate of an alkylphenol, the surfactant containing at least thirty moles of ethylene oxide per mole of alkylphenol, and polymerizing the coating composition about the initial beads.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: December 22, 1981
    Assignee: Atlantic Richfield Company
    Inventors: Ralph Milkovich, David R. Warfel, Elizabeth A. Blommers, Alvin R. Ingram
  • Fire-retardant anhydride copolymers
    Patent number: 4304874
    Abstract: Copolymers of monovinyl aromatic monomers and the anhydrides of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of between 1 and 10 pounds per cubic foot, said composition having fire retardant properties.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: December 8, 1981
    Assignee: ARCO Polymers, Inc.
    Inventors: Adolph V. DiGiulio, Jack N. Bauer
  • Fast-cooling styrene polymer foams
    Patent number: 4304797
    Abstract: Expandable styrene polymer particles which have fast cooling rates during molding are produced by dry blending styrene polymer particles in the presence of 0.06 to 0.60 parts of decaglyceroloctaoleate per 100 parts of polymer particles. The oleate may be added as sole fast cool agent or in addition to the known internal additives which impart fast cool properties.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: December 8, 1981
    Assignee: ARCO Polymers, Inc.
    Inventor: John P. Spicuzza
  • Fast-cooling styrene polymer foams
    Patent number: 4304796
    Abstract: Expandable styrene polymer particles which have fast cooling rates during molding are produced by dry blending styrene polymer particles in the presence of 0.06 to 0.60 parts of a mixture of alkyl esters of fatty acids per 100 parts of polymer particles. The ester mixture may be added as sole fast cool agent or in addition to the known internal additives which impart fast cool properties.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: December 8, 1981
    Assignee: Arco Polymers, Inc.
    Inventors: John P. Spicuzza, Jr., John G. Klepic, III