Patents Represented by Attorney J. Y. Clowney
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Patent number: 4401838Abstract: Isoprene and butadiene are purified by treating a petroleum refinery C.sub.4 stream or petroleum refinery C.sub.5 stream which contain butadiene or isoprene or relatively pure butadiene or isoprene and carbon disulfide by treatment of these streams with from about 1 to about 7 equivalents of a polyamine. The polyamine reacts with the CS.sub.2 impurity to form the dithiocarbamate salt. The hydrocarbon is then separated from the dithiocarbamate salt and any excess unreacted polyamine by water washing this stream or by flash distilling of the hydrocarbon.Type: GrantFiled: November 28, 1980Date of Patent: August 30, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: George F. Balogh
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Patent number: 4385164Abstract: A block copolymer dispersion stabilizer for use in the aqueous dispersion polymerization of an ethylenically unsaturated monomer comprises at least two blocks linked by chemical valences. At least one of the blocks is hydrophilic (water soluble) and at least another of said blocks is hydrophobic (water insoluble). The hydrophobic block can contain a plurality of similar or dissimilar pendent groups having chemically reactive functionality. Examples of such groups are epoxy groups and ethylenically unsaturated bonds.Type: GrantFiled: November 8, 1979Date of Patent: May 24, 1983Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard G. Sinclair, David L. Berry, George E. Cremeans, Richard A. Markle, Wesley M. Germon, Jr.
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Patent number: 4383097Abstract: There is disclosed a process for the regulation of the molecular weight of high cis polybutadiene prepared by polymerizing butadiene under solution polymerization conditions employing as the catalyst system a mixture of (a) organoaluminum compounds; (b) organonickel compounds; and (c) fluorine containing compounds; said polymerization being conducted in the presence of nonconjugated diolefins of the formula of the structure ##STR1## wherein R.sub.1 may be; --CH.sub.2 --; --C.sub.2 H.sub.4 --; --C.sub.3 H.sub.6 --; ##STR2## and R.sub.2 may be H, --CH.sub.3, --C.sub.2 H.sub.5 or --C.sub.3 H.sub.7 and R.sub.2 is trans to R.sub.1.Type: GrantFiled: August 21, 1981Date of Patent: May 10, 1983Assignee: The Goodyear Tire & Rubber CompanyInventors: Kenneth F. Castner, Paul H. Sandstrom
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Patent number: 4375497Abstract: There is disclosed a process for the production of tack-free, pourable, filler containing elastomer powder which comprises(a) dispersing a carbon black filler in water;(b) mixing the thus dispersed carbon black filler with an elastomer latex;(c) coagulating the thus produced mixture of elastomer latex and carbon black with an acid/alum solution;(d) partitioning the thus coagulated suspension with a coating resin; and(e) filtering, washing and drying of the resultant powder, the improvement comprising using as a coating resin a mixture of a styrene/butadiene resin and a styrene/.alpha.-methylstyrene or a polystyrene resin wherein the weight ratio of the styrene/butadiene resin to the styrene/.alpha.Type: GrantFiled: August 27, 1981Date of Patent: March 1, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: Paul H. Sandstrom
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Patent number: 4374732Abstract: Organo-sulfur impurities are removed from organic or aqueous solutions by contacting said solutions with polymers containing functional groups consisting of metal salts of N-halosulfonamides.Type: GrantFiled: September 30, 1981Date of Patent: February 22, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: Roger J. Hopper
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Patent number: 4374941Abstract: There is disclosed a process for the production of tack-free, pourable, filler containing elastomer powder which comprises(a) dispersing a carbon black filler in water;(b) mixing the thus dispersed carbon black filler with an elastomer latex;(c) coagulating the thus produced mixture of elastomer latex and carbon black with a two-stage coagulation solution;(d) partitioning the thus coagulated suspension with a coating resin; and(e) filtering, washing and drying of the resultant powder, the improvement comprising using as a coating resin a mixture of a styrene/butadiene resin and a styrene/.alpha.-methylstyrene or a polystyrene resin wherein the weight ratio of the styrene/butadiene resin to the styrene/.alpha.Type: GrantFiled: August 27, 1981Date of Patent: February 22, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: Paul H. Sandstrom
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Patent number: 4341667Abstract: The green strength of compositions containing elastomers and/or up to 100 percent of reclaimed rubber is improved by the addition of crystalline or semi-crystalline butene polymers selected from the group consisting of polybutene and interpolymers made from 1-butene with at least one monomer selected from the group consisting of alpha-olefins, non-conjugated dienes, and non-conjugated polyenes. Although reclaimed rubbers are utilized, an unexpected increase in green strength of an unvulcanized blend is obtained. The reclaimed rubbers utilized in the blend may be those which have been devulcanized by mechanical energy, heat, and/or chemical agents. Additionally and preferably, the rubbers may be reclaimed through the use of microwave energy.Type: GrantFiled: June 23, 1980Date of Patent: July 27, 1982Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Sandra J. Walters
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Patent number: 4340690Abstract: New compositions and a process for the preparation of conjugated diene polymers of broadened molecular weight distribution by reacting non-terminated lithium catalyzed conjugated diene polymers with cyclic organic compounds selected from the group of carbonates, thiocarbonates and sulfites. The resulting new compositions are suitable for use in making high impact plastics and for fabricating rubber goods.Type: GrantFiled: June 25, 1981Date of Patent: July 20, 1982Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Michael L. Senyek
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Patent number: 4340691Abstract: New compositions and a process for the preparation of conjugated diene polymers of broadened molecular weight distribution by reacting non-terminated lithium catalyzed conjugated diene polymers with linear organic compounds selected from the group of carbonates, thiocarbonates and sulfites. The resulting new compositions are suitable for use in making high impact plastics and for fabricating rubber goods.Type: GrantFiled: June 25, 1981Date of Patent: July 20, 1982Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Michael L. Senyek
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Patent number: 4322551Abstract: A process for the preparation of aromatic amide antioxidants from a simple aliphatic or aromatic ester and primary amine in the presence of a metal alkoxide and an alcohol. Unsaturated products produced using this process are sufficiently pure to use as comonomers in the preparation of elastomers.Type: GrantFiled: February 16, 1978Date of Patent: March 30, 1982Assignee: The Goodyear Tire & Rubber CompanyInventor: Niranjan V. Shah
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Patent number: 4317933Abstract: This invention comprises an alkylation, reduction and transesterification process for the preparation of ester substituted phenols. The products are useful as antioxidants and may be prepared in high yields and with a high degree of purity.Type: GrantFiled: November 9, 1977Date of Patent: March 2, 1982Assignee: The Goodyear Tire & Rubber CompanyInventor: Dane K. Parker
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Patent number: 4301258Abstract: New compositions and a process for the preparation of conjugated diene polymers of broadened molecular weight distribution by reacting non-terminated lithium catalyzed conjugated diene polymers with cyclic organic compounds selected from the group of carbonates, thiocarbonates and sulfites. The resulting new compositions are suitable for use in making high impact plastics and for fabricating rubber goods.Type: GrantFiled: May 27, 1980Date of Patent: November 17, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Michael L. Senyek
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Patent number: 4301259Abstract: New compositions and a process for the preparation of conjugated diene polymers of broadened molecular weight distribution by reacting non-terminated lithium catalyzed conjugated diene polymers with linear organic compounds selected from the group of carbonates, thiocarbonates and sulfites. The resulting new compositions are suitable for use in making high impact plastics and for fabricating rubber goods.Type: GrantFiled: May 27, 1980Date of Patent: November 17, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Michael L. Senyek
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Patent number: 4301296Abstract: Ester such as 3,6,9-trioxaundecane-1,11-bis(3-n-dodecylthiopropionate) when combined with conventional free amine antioxidants such as N,N'-diphenylparaphenylenediamine or with polymer bound antioxidants such as N-(4-anilinophenyl) methacrylamide produce improved antioxidant systems for SBR and NBR type polymers.Type: GrantFiled: September 29, 1980Date of Patent: November 17, 1981Assignee: The Goodyear Tire & Rubber CompanyInventor: Joseph A. Kuczkowski
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Patent number: 4294942Abstract: There is disclosed copolymers of 2,3-dimethyl-1,3-butadiene with butadiene or isoprene in which the 2,3-dimethyl-1,3-butadiene content ranges from about 20 to about 80 mole percent, characterized in that the microstructure of the 2,3-dimethyl-1,3-butadiene segments range from about 55 to about 65 percent trans-1,4. Also disclosed are copolymers of 2,3-dimethyl-1,3-butadiene with butadiene or isoprene in which the 2,3-dimethyl-1,3-butadiene content ranges from about 20 to about 80 mole percent characterized in that the microstructure of the 2,3-dimethyl-1,3-butadiene segments range from about 40 to about 65 percent trans-1,4 and 1,2 content of said segments does not exceed 20 percent, said copolymers being prepared by bulk polymerization techniques.Type: GrantFiled: February 14, 1980Date of Patent: October 13, 1981Assignee: The Goodyear Tire & Rubber CompanyInventor: James N. Henderson
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Patent number: 4272436Abstract: The green strength of elastomers is improved by the addition of semi-crystalline butene polymers selected from the class consisting of polybutene and interpolymers made from 1-butene monomer and at least one monomer selected from the class consisting of alpha-olefins, non-conjugated dienes, and non-conjugated polyenes. The semi-crystalline butene polymer is mixed with a desired elastomer such as natural or synthetic cis-1,4-polyisoprene, or a synthetic elastomer made from monomers selected from the class consisting of conjugated dienes having from 4 to 10 carbon atoms, interpolymers of said dienes among themselves or with vinyl substituted aromatic hydrocarbon compounds having from 8 to 12 carbon atoms, or polyalkenylenes. The mixing or blending of the butene polymer and the elastomer may be through conventional methods such as cement mixing or mastication.Type: GrantFiled: May 24, 1979Date of Patent: June 9, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Sandra J. Walters
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Patent number: 4271213Abstract: A fused, thermoplastic partitioning agent for elastomeric crumb materials is prepared from polymethyl methacrylate and a resinous styrene-butadiene copolymer.Type: GrantFiled: January 11, 1980Date of Patent: June 2, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Donald C. Grimm, Hanford L. Gunnerson
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Patent number: 4256880Abstract: A process for preparing morpholine from diethyleneglycol and an aqueous solution of ammonia in a continuous manner using a modified Raney nickel catalysts without the use of any hydrogen is disclosed.Type: GrantFiled: July 16, 1979Date of Patent: March 17, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Kenneth J. Frech, Lawson G. Wideman
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Patent number: 4254013Abstract: The green strength of elastomer blends of natural or synthetic cis-1,4-polyisoprene and synthetic elastomers is improved by adding to the chain of the synthetic elastomer an ionogenic compound. The said ionogenic compound can be incorporated into the chain of the synthetic elastomer through conventional polymerization with the monomers forming the synthetic elastomer, and the ionogenic group of the compound will be pendant from the chain or backbone of the elastomer. The ionogenic group is combined with a readily ionogenic metal base or salt. This combination yields blends which have greatly improved green strength as compared to rubber blends known to the art.Type: GrantFiled: March 15, 1979Date of Patent: March 3, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Emil M. Friedman, Richard G. Bauer
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Patent number: 4248986Abstract: There is disclosed a process for selectively cyclizing block polymers which comprises reacting 1 to 30 percent by weight solution of a block copolymer comprised of at least two different blocks, at least one of which blocks is a cyclizable block derived from a conjugated diene monomer of the general structure ##STR1## wherein: R.sub.1 is selected from a hydrocarbyl group containing one to twelve carbon atoms, R.sub.2 is selected from hydrogen or a hydrocarbyl group containing one to twelve carbon atoms; and at least one of which blocks is a non-cyclizable block derived from at least one member selected from the following classes of compounds:(a) polymers of conjugated diene monomers of general structure ##STR2## wherein: R.sub.3, R.sub.4 and R.sub.5 are the same or different and are selected from hydrogen or a hydrocarbyl group containing one to twelve carbon atoms; R.sub.6 is selected from hydrogen, a hydrocarbyl group containing one to twelve carbon atoms or a cyano group,(b) polymers of .alpha.Type: GrantFiled: August 27, 1979Date of Patent: February 3, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Joginder Lal, Richard R. Smith