Ethylenic Groups Are Non-conjugated, E.g., Divinylbenzene, Etc. Patents (Class 526/336)
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Patent number: 6160071Abstract: Amorphous copolymers of ethylene with .alpha.-olefins and optionally minor amounts of polyenes are disclosed, having the following characteristics:(A) the % by mole content of .alpha.-olefin in the copolymer (%.alpha.) and the ratio between the molar amount of .alpha.-olefin diads and the molar content of .alpha.-olefin in the copolymer (.alpha..alpha./.alpha.) satisfy the following relationship:(%.alpha.)-250(.alpha..alpha./.alpha.).gtoreq.10(B) less than 2% of the CH.sub.2 groups in the polymeric chain are in sequences (CH.sub.2).sub.n, wherein n is an even number.These copolymers are obtainable by operating in the presence of particular metallocene-based catalysts having two fluorenyl groups joined together through a bridging group.Type: GrantFiled: June 16, 1997Date of Patent: December 12, 2000Assignee: Montell Technology Company bvInventors: Maurizio Galimberti, Luigi Resconi, Enrico Albizzati
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Patent number: 6143851Abstract: A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least one difunctional acyclic olefin of up to about 30 carbon atoms, and at least one reactant YZ in the presence of at least one olefin metathesis catalyst to prepare an addition product of a linear difunctional unsaturated polymer, wherein YZ is capable of adding to a carbon--carbon double bond under ROMP reaction conditions.Type: GrantFiled: March 29, 2000Date of Patent: November 7, 2000Assignee: BP Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson, William H. Frye, Tsuei-Yun Lynch, Larry C. Satek, George A. McConaghy
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Patent number: 6140392Abstract: The present invention provides single fluid lithographic printing inks that include a continuous phase and a discontinuous polyol phase. The continuous phase includes an acid-functional vinyl resin. The polyol phase includes a liquid polyethylene glycol material. The invention further provides a method of making a single fluid ink composition and a process of printing using the single fluid ink of the invention with improved resistance to toning.Type: GrantFiled: November 30, 1998Date of Patent: October 31, 2000Assignee: Flint Ink CorporationInventors: Kevin P. Kingman, Rick A. Balyo, Michael V. Oberski
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Patent number: 6140441Abstract: A process for preparing an ethylene/.alpha.-olefin/norbornene nonconjugated polyene random copolymer, comprising preparing an ethylene random copolymer simultaneously meeting the following requirements (1) to (5):(1) the molar ratio of ethylene (a) to an .alpha.-olefin (b) having 3 to 20 carbon atoms ranges from 40:60 to 95:5;(2) a given amount of non conjugated polyene (c) has a norbornene skeleton;(3) the available network chain density .nu. is not less than 1.5.times.10.sup.20 /cm.sup.3 after press cross-linking of the copolymer using a dicumyl peroxyde;(4) the ratio of the rate .gamma.1 of shear showing a shearing stress of 0.4.times.10.sup.6 dyn/cm.sup.2 as determined from the melt flow curve at 100.degree. C. and the rate .gamma.2 of shear showing a shearing stress of 2.4.times.10.sup.6 dyn/cm.sup.2, that is .gamma.2/.gamma.1 and the available network chain density .nu. has a relationship represented by the following general formula: 0.04.times.10.sup.-19 .ltoreq.Log(.gamma.2/.gamma.1)/.nu..ltoreq.0.20.Type: GrantFiled: March 30, 1998Date of Patent: October 31, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Takashi Hakuta, Mikio Hosoya, Tetsuo Tojo, Masaaki Kawasaki
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Patent number: 6133386Abstract: Metal oxide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer (e.g., styrene based monomers), C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the solid acid catalyst prior to use. Resins with softening points (Ring and Ball) in the range of about 5.degree. C. to 170.degree. C. can be prepared. These catalysts offer advantages over the traditional Friedel-Crafts polymerization catalysts since the acid sites are an integral part of the solid. The solid acid catalysts are relatively nonhazardous, reusable catalysts which eliminate or at least reduce contamination of the resulting resin products with acid residues or by-products.Type: GrantFiled: January 7, 1998Date of Patent: October 17, 2000Assignee: Hercules IncorporatedInventors: Dennis G. Morrell, Laura M. Babcock
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Patent number: 6107374Abstract: Bitumens can be blended with interpolymers prepared from least one olefin and at least one vinyl or vinylidene aromatic monomer and, optionally, at least one diene. The interpolymers prepared from monomers containing a diene are new compositions of matter. When the interpolymers prepared from monomers containing a diene are blended with a bitumen, the blends are crosslinkable.Type: GrantFiled: July 23, 1998Date of Patent: August 22, 2000Assignee: The Dow Chemical CompanyInventors: James C. Stevens, Francis J. Timmers, Arnold L. Gatzke, Corwin J. Bredeweg, Kevin W. McKay, William A. Gros, Charles F. Diehl
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Patent number: 6096849Abstract: The invention relates to linear copolymers containing alpha-olefin and divinylbenzene comonomer units and to a process for preparing the copolymers, the copolymers having a mole ratio of unsaturation/divinylbenzene (TUS/DOU) between 0.8 and 1.1, a molecular weight distribution of less than 4, and a homogeneous composition distribution, and having the structural formula ##STR1## in which R is a linear or branched C.sub.1 to C.sub.10 alkyl group or a phenyl or alkyl-substituted phenyl group, x+y is the mole % of alpha-olefin units in the copolymer, z is the mole % of divinylbenzene units in the copolymer, the sum of x+y is from 50 to 99.9, and the sum of x+y+z is 100. The copolymers are prepared in the presence of a bridged metallocene catalyst having a spacial opening at the metal active site of between 135 and 105.degree. for reacting with only one of the two vinyl groups in the divinylbenzene comonomer, which assures the formation of linear copolymers without detectable branching structure.Type: GrantFiled: July 21, 1999Date of Patent: August 1, 2000Assignee: The Penn State Research FoundationInventors: Tze-Chiang Chung, Jinyong Dong
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Patent number: 6075105Abstract: A process for the preparation of resin particles comprising: heating a mixture comprised of a free radical initiator compound, at least one stable free radical compound, at least one free radical polymerizable monomer compound, and at least one free radical polymerizable crosslinking compound; and cooling the mixture, wherein the resulting product resin particles are crosslinked and are comprised of polymerized monomers and at least one crosslinking compound, and wherein the particles have a narrow particle size distribution, a narrow pore size distribution, and a high monomer to polymer conversion.Type: GrantFiled: August 26, 1996Date of Patent: June 13, 2000Assignee: Xerox CorporationInventors: Barkev Keoshkerian, Michael K. Georges, Peter M. Kazmaier, Gordon K. Hamer
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Patent number: 6060572Abstract: A liquid phase polymerization process is provided for producing a polyolefin elastomer, e.g., one derived from ethylene, another .alpha.-olefin such as propylene and, optionally, a diene, employing a metallocene catalyst. The process comprises contacting monomer under liquid phase polymerization conditions with a catalyst composition obtained by combining (a) a metallocene procatalyst, preferably one containing a bridging group possessing at least two bulky groups, and (b) a cocatalyst such as aluminoxane, preferably a cation-generating cocatalyst, in partial on total replacement of aluminoxane.Type: GrantFiled: December 15, 1997Date of Patent: May 9, 2000Assignee: Uniroyal Chemical Company, Inc.Inventors: Daniel J. Gillis, Richard Karpeles
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Patent number: 6060570Abstract: A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least one difunctional acyclic olefin of up to about 30 carbon atoms, and at least one reactant YZ in the presence of at least one olefin metathesis catalyst to prepare an addition product of a linear difunctional unsaturated polymer, wherein YZ is capable of adding to a carbon--carbon double bond under ROMP reaction conditions.Type: GrantFiled: August 7, 1997Date of Patent: May 9, 2000Assignee: BP Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson, William H. Frye, Tsuei-Yun Lynch, Larry C. Satek, George A. McConaghy
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Patent number: 6037048Abstract: Fibers having increased strength and small diameters can be produced from compositions comprising long chain branched syndiotactic vinyl aromatic polymers. Due to the increased fiber strength, less strand breakage occurs during processing which increases process productivity and yield.Type: GrantFiled: June 29, 1999Date of Patent: March 14, 2000Assignee: The Dow Chemical CompanyInventors: Curtis E. Peterson, Roel H. Vossen, Yi-Bin Huang, Paul J. Moses, Jr.
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Patent number: 6034196Abstract: Copolymers of ethylene with comonomers selected from (a) alpha-olefins, (b) cycloolefins and/or (c) dienes, characterized by the fact that:the molar percentage of the comonomer (% .alpha.) and the density of the copolymer (D) satisfy the relation % .alpha.+150D.ltoreq.141.Type: GrantFiled: November 3, 1997Date of Patent: March 7, 2000Assignee: Montell Technology Company BVInventors: Luigi Resconi, Tiziano Dall'Occo, Fabrizio Piemontesi, Floriano Guglielmi, Enrico Albizzati
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Patent number: 6020385Abstract: Polymers of improved surface quality are obtained by polymerization of microencapsulated monomer droplets suspended in an aqueous phase if the monomer and/or the aqueous phase contain a polymerization inhibitor.Type: GrantFiled: November 12, 1997Date of Patent: February 1, 2000Assignee: Bayer AktiengesellschaftInventors: Olaf Halle, Wolfgang Podszun, Robert Bloodworth, Werner Struver, Axel Ingendoh
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Patent number: 6011128Abstract: There is provided process for producing an ethylene-alpha-olefin polymer at a polymerization reaction temperature in excess of the softening temperature of the polymer in a gas-phase fluidized-bed reactor in the presence of a polymerization catalyst and wherein the polymerization reaction is conducted in the presence of an inert particulate material, the improvement comprising: commencing polymerization by polymerizing an ethylene propylene rubber having a crystallinity ranging from about 4 to 18 percent as measured by differential scanning calorimetry.Type: GrantFiled: June 17, 1998Date of Patent: January 4, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Robert Steven Eisinger, Kiu Hee Lee, Fathi David Hussein, Daniel Paul Zilker, Jr.
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Patent number: 5990256Abstract: Long chain branched syndiotactic vinyl aromatic polymers can be obtained by polymerizing the vinyl aromatic monomer in the presence of a small amount of a multifunctional monomer under conditions such that a syndiotactic vinyl aromatic polymer is produced.Type: GrantFiled: March 10, 1998Date of Patent: November 23, 1999Assignee: The Dow Chemical CompanyInventors: Thomas H. Newman, Yi-Bin Huang, Mark S. Chahl
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Patent number: 5986031Abstract: Allylic copolymer resins and processes for making them are disclosed. The resins are made by copolymerizing an ethylenic monomer, a monofunctional allyl monomer, and a multifunctional allyl monomer under free-radical conditions. The multifunctional allyl monomer is used in an amount and manner effective to give a copolymer resin having a polydispersity (Mw/Mn) within the range of about 5 to about 30. The resins, which are easy to make with even bulk polymerization, are particularly valuable, for example, as toner resins, thermoset resins, reactive plasticizers, and rheology modifiers.Type: GrantFiled: May 26, 1998Date of Patent: November 16, 1999Assignee: Arco Chemical Technology, L.P.Inventors: Shao Hua Guo, Daniel B. Pourreau
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Patent number: 5986020Abstract: A method is provided for producing hyperbranched polymers comprising heating a polymerizable reaction charge comprising (a) a monomer mixture comprising 50-99.1% by weight of at least one monoethylenically unsaturated monomer and 0.1-50% by weight of one or more multiethylenically unsaturated monomers and (b) if at least one ethylenically unsaturated monomer of the monomer mixture is not a thermally initiating monomer, a free radical polymerization initiator, to a temperature in the range from about 250.degree. C. to about 400.degree. C. in a continuous reactor which allows mixing of the reactor contents for a residence time of from about 2 minutes to about 60 minutes, provided that if the total amount of multiethylenically unsaturated monomer is less than 3% by weight of the monomer mixture than at least one of said one or more multiethylenically unsaturated monomers must be tri- or greater ethylenically unsaturated. The hyperbranched polymers prepared by this process are also described.Type: GrantFiled: August 5, 1997Date of Patent: November 16, 1999Inventors: J. David Campbell, Fouad Teymour
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Patent number: 5955537Abstract: This invention discloses a process for synthesizing a styrene-butadiene polymer which comprises the steps of: (1) continuously charging 1,3-butadiene monomer, an organolithium compound, a polar modifier and an organic solvent into a first polymerization zone, (2) allowing the 1,3-butadiene monomer to polymerize in said first polymerization zone to a conversion of at least about 90 percent to produce a living polymer solution, (3) continuously withdrawing said living polymer solution from said first polymerization zone, (4) continuously charging divinyl benzene and the living polymer solution being withdrawn from the first polymerization zone into a second polymerization zone, (5) allowing the divinyl benzene monomer to react with the living polybutadiene chains in said second polymerization zone to produce a solution of living divinylbenzene modified butadiene polymer, (6) continuously withdrawing the solution of said divinylbenzene modified butadiene polymer from the second polymerization zone, (7) continuouType: GrantFiled: February 13, 1998Date of Patent: September 21, 1999Assignee: The Goodyear Tire & Rubber CompanyInventors: Jean Steininger Clites, Howard Allen Colvin, Ronald David Fiedler
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Patent number: 5939505Abstract: In a process for the polymerization of aqueous ethylene vinyl acetate emulsions wherein the polymerization is carried out in the presence of a stabilizing system comprising polyvinyl alcohol and a surfactant, the improvement which comprises using a stabilizing system consisting essentially of 2 to 8% polyvinyl alcohol and 0.25 to 4% of at least one surface-active compound comprising the addition products of 50 to 70 moles of ethylene oxide adducted to straight-chained or branch-chained alkanols or alkylphenols containing 6 to 22 carbon atoms in the alkyl group and having an HLB value equal to or greater than 18.0, the amounts being based on total vinyl acetate.Type: GrantFiled: December 16, 1997Date of Patent: August 17, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventor: Pravin Kukkala
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Patent number: 5929185Abstract: Copolymers have a viscosity index VI of more than 160 and compriseA) from 99.0 to 99.99 % by weight of C.sub.2 -C.sub.20 -alk-1-enes andB) from 0.01 to 1.0% by weight of C.sub.5 -C.sub.20 -.alpha.,.omega.-dienes having isolated double bonds.Type: GrantFiled: May 30, 1997Date of Patent: July 27, 1999Assignee: BASF AktiengesellschaftInventors: Joachim Rosch, Helmut Mach, Freddy Gruber
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Patent number: 5922823Abstract: Disclosed is a process for preparing an ethylene-.alpha.-olefin-nonconjugated polyene random copolymer comprising random copolymerizing (a) ethylene, (b) an .alpha.-olefin of 3 or more carbon atoms and (c) a nonconjugated polyene in the presence of a metallocene catalyst containing a specific metallocene compound. The ethylene-.alpha.-olefin-nonconjugated polyene random copolymer prepared by the process has such properties that (i) the copolymer contains units derived from ethylene (a) and units derived from the .alpha.-olefin of 3 or more carbon atoms (b) in a molar ratio of 40/60 to 95/5 ?(a)/(b)!, (ii) the iodine value is 1 to 50, (iii) the intrinsic viscosity (.eta.) is more than 0.1 dl/g and less than 8.0 10 dl/g, (iv) the intensity ratio D of T.alpha..beta. to T.alpha..alpha. in the .sup.13 C-NMR spectrum, T.alpha..beta./T.alpha..alpha., is not more than 0.5, (v) the B value is 1.00 to 1.50, (vi) the glass transition temperature Tg is not higher than -50.degree. C., and (vii) the ratio g.eta.Type: GrantFiled: July 22, 1997Date of Patent: July 13, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Toshihiro Sagane, Toshiyuki Tsutsui
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Patent number: 5919855Abstract: A process for the production of a polymer is disclosed wherein the polymerization occurs in a fluidized bed reactor or a reactor for the gas-phase production of a polymer and in the presence of a catalyst and a modified carbon black. Also disclosed are the polymer particles resulting from this process of the present invention and products made from the polymer particles of the present invention including hoses, such as radiator hoses, tires, and roofing material.Type: GrantFiled: February 11, 1997Date of Patent: July 6, 1999Assignee: Cabot CorporationInventors: Thomas Reed, Khaled Mahmud
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Patent number: 5912303Abstract: A terpolymer rubber prepared from ethylene, .alpha.-olefin having 3 to 20 carbon atoms and branched chain polyene of the formula ##STR1## wherein R.sup.1 represents C.sub.1 -C.sub.5 alkyl, and R.sup.2 and R.sup.3 represent hydrogen atom or C.sub.1 -C.sub.5 alkyl, such as, for example, 6,7-dimethyl-4-ethylidene-1,6-octadiene, 6,7-dimethyl-4-ethylidene-1,6-nonadiene, and 9-methyl-4-ethylidene-1,8-decadiene; when added to a rubber (diene rubber, nitrile rubber or random copolymer rubber from ethylene, C.sub.3 -C.sub.20 .alpha.-olefin, and optionally a nonconjugated diene) provides curable rubber compositions having rapid vulcanization rates, for example, as lows as about 7 to 10 seconds. The diene rubber compositions also have excellent resistances to weather,ozone and heat aging while maintaining excellent mechanical strength characteristics. The nitrile rubber compositions also have excellent oil resistance.Type: GrantFiled: May 23, 1996Date of Patent: June 15, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Hidenari Nakahama, Masaaki Kawasaki, Tetsuo Tojo, Totshiyuki Tsutsui, Toshihiro Sagane
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Patent number: 5905118Abstract: Disclosed herein are terpolymers of styrene, acrylonitrile and dimethyl styrene phosphonate and blends thereof with poly(styrene acrylonitrile) polymers and polymers and copolymers of methylmethacrylate.Type: GrantFiled: April 24, 1998Date of Patent: May 18, 1999Assignee: Bayer Antwerpen S.A./N.V.Inventor: Allen Robert Padwa
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Patent number: 5880240Abstract: An alkyl-containing porous resin with a specific surface area of 50 to 600 m.sup.2 /g, the resin being prepared by polymerizing a monomer mixture of, based on the total weight of the monomers, 15 to 97% by weight of divinylbenzene, 0 to 82% by weight of at least one aromatic monovinyl monomer selected from the group consisting of styrene, methylstyrene and ethylvinylbenzene and 3 to 50% by weight of a vinylbenzyloxyalkane derivative represented by the formula ##STR1## wherein n is an integer of 1 to 18, a process for its preparation and its use.The porous resin of the invention is capable of fully exhibit its modified functions based on the variations of chemical and structural environments on the surface of resin, the functions being modified by introducing alkyl groups having varying chain lengths.Type: GrantFiled: November 26, 1997Date of Patent: March 9, 1999Assignee: Arakawa Chemical Industries, Ltd.Inventor: Takaharu Tsuno
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Patent number: 5877336Abstract: Triorgano substituted-tin lithium initiators are made in a dimethyl ether solvent. The substitution of dimethyl ether as the solvent for the traditional tetrahydrofuran solvent results in an initiator for anionic polymerizations that can produce less 1,2-vinyl repeat units. The dimethyl ether is also easier to remove from the polymerization media because it has a boiling point at one atmosphere of minus 24.8.degree. C. and thus is a gas at 25.degree. C.Type: GrantFiled: December 31, 1996Date of Patent: March 2, 1999Assignee: Bridgestone CorporationInventors: William L. Hergenrother, Tristram W. Bethea
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Patent number: 5874510Abstract: A process for making crosslinked polymers of maleic anhydride and methyl vinyl ether is described. The process is characterized by precharging methyl vinyl ether, partially or totally, in isopropyl acetate, and a crosslinker, and then continuously feeding molten maleic anhydride and methyl vinyl ether into the thus-precharged reactor. The monomer mixture then is polymerized at a temperature of about 60.degree.-80.degree. C. The reaction product is a pumpable, homogeneous suspension of the crosslinked copolymer at a solids level of about 30-50%, which is recoverable in high yield upon removal of the solvent and filtering the suspension.Type: GrantFiled: September 18, 1997Date of Patent: February 23, 1999Assignee: ISP Investments Inc.Inventors: Yoon Tae Kwak, Stephen L. Kopolow
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Patent number: 5869591Abstract: The subject invention provides a thermoset elastomer comprising a crosslinked pseudorandom or substantially random interpolymer of: (a) from 15 to 70 weight percent of monomer units derived from at least one a-olefin, (b) from 30 to 70 weight percent of monomer units derived from at least one vinylidene aromatic compound, and (c) from 0 to 15 weight percent of monomer units derived from at least one diene. The subject invention further provides a thermoplastic vulcanizate comprising the thermoset elastomers of the invention as provided in a thermoplastic polyolefin matrix. The subject invention further provides processes for preparing the inventive thermoset elastomers and thermoplastic vulcanizates, as well as parts fabricated therefrom. The inventive materials have a superior balance of properties, as compared to EPM and EPDM based materials. The subject invention also pertains to foams and methods for their preparation.Type: GrantFiled: August 27, 1997Date of Patent: February 9, 1999Assignee: The Dow Chemical CompanyInventors: Kevin W. McKay, Francis J. Timmers, Edwin R. Feig, Thoi H. Ho, Seema V. Karande
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Patent number: 5859160Abstract: A free radical curable composition that includes a free radical curable and a vinyl aromatic compound that is chemically different than the free radical curable component, wherein the vinyl aromatic compound is present in an amount sufficient to decelerate the cure rate of the free radical composition without adversely effecting completion of cure and the properties of the curable composition after it has cured. The composition is particularly useful as a two part adhesive that includes a free radical catalyst system and a diene elastomer.Type: GrantFiled: January 9, 1997Date of Patent: January 12, 1999Assignee: Lord CorporationInventors: Robin F. Righettini, Kirk J. Abbey
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Patent number: 5859277Abstract: A compound of the formula ##STR1## where R is a solid support; R.sub.1 and R.sub.2 are alkyl, unsubstituted alkyl, or phenyl, and where R.sub.1 and R.sub.2 can be the same or different, for use in solid-phase synthesis.Type: GrantFiled: June 25, 1997Date of Patent: January 12, 1999Assignee: Wisconsin Alumni Research FoundationInventors: Howard W. Whitlock, Karin Kay Maxson
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Patent number: 5854363Abstract: An (omega-alkenyl) (cyclopentacarbyl) metallocene compound is provided. Polymerization processes therewith are also provided.Type: GrantFiled: November 24, 1997Date of Patent: December 29, 1998Assignee: Phillips Petroleum CompanyInventors: Michael Jung, Helmut G. Alt, M. Bruce Welch
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Patent number: 5854366Abstract: A styrene base random copolymer having a weight average molecular weight of 200,000 to 1,000,000, a monovinylbenzene unit and a divinylbenzene unit in an amount of 50 to 500 ppm by weight based on the weight of the monovinylbenzene unit, the divinylbenzene unit consisting of p-divinylbenzene unit and m-divinylbenzene unit, wherein the weight ratio between the p-divinylbenzene unit and the m-divinylbenzene unit is in the range of 100:0 to 75:25, which is superior in impact strength, melt tension, heat resistance and fluidity, and which is capable of being molded within a short molding cycle, is industrially advantageously produced by a continuous bulk polymerization without troubles such as undesirable deposits of polymeric gel material on reactor walls.Type: GrantFiled: November 12, 1996Date of Patent: December 29, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Nakagawa, Shuji Yoshimi, Hayato Kihara
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Patent number: 5837791Abstract: A novel unsaturated copolymer of ethylene comprises a random copolymer of (i) ethylene, (ii) an .alpha.-olefin of 3 to 20 carbon atoms and (iii) at least one straight chain or branched chain nonconjugated triene or tetraene having one vinyl group in the molecule, which contains 30-92% by mol of ethylene units (i), 6-70% by mol of .alpha.-olefin units (ii) and 0.1-30% by mol of triene or tetraene units (iii), and which has a molar ratio of ethylene units (i) to .alpha.-olefin units (ii) of 40/60 to 92/8 (ethylene units (i)/.alpha.-olefin units (ii)) and an intrinsic viscosity (.eta.), measured in Decalin at 135.degree. C., of 0.05 to 10 dl/g. This novel unsaturated copolymer of ethylene is excellent in weathering resistance, heat resistance and ozone resistance and has a high vulcanizing rate.Type: GrantFiled: August 21, 1997Date of Patent: November 17, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Toshihiro Sagane, Masaaki Kawasaki, Hidenari Nakahama, Tatsuyoshi Ishida, Katsuya Takahashi, Toshiyuki Tsutsui, Hitoshi Onishi, Masaaki Yasuda, Noriaki Kihara
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Patent number: 5817725Abstract: (Co)polymerisation process according to which a mixture of a halogenated neutral metallocene as defined above and of an organoaluminium compound is prepared, the olefin is brought into contact with this mixture and an ionising agent is added thereto.Type: GrantFiled: November 25, 1996Date of Patent: October 6, 1998Assignee: Solvay Polyolefins Europe-Belgium (Societe Anonyme)Inventor: Nicola Zandona
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Patent number: 5814714Abstract: Interpolymer of a) a mono-olefin selected from the group consisting of .alpha.-olefins and cyclic olefins, and b) a non-conjugated polyene having at least 7 carbon atoms and having two readily polymerizable double bonds, having an improved melt tension, improved processability, or a combination of both, a process of preparing such interpolymers, composition comprising such interpolymers and one or more further natural or synthetic polymers or one or more additives or adjuvants, as well as articles obtained by subjecting such interpolymers to melt processing conditions.Type: GrantFiled: November 30, 1995Date of Patent: September 29, 1998Assignee: The Dow Chemical CompanyInventors: Jesus Nieto Palomo, Patrick J. C. Schouterden, Debra Jean Mangold, Lambertus P. P. M. van der Heijden, Miguel Garcia Marti
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Patent number: 5807948Abstract: Disclosed is a process for preparing an ethylene-.alpha.-olefin-nonconjugated polyene random copolymer comprising random copolymerizing (a) ethylene, (b) an .alpha.-olefin of 3 or more carbon atoms and (c) a nonconjugated polyene in the presence of a metallocene catalyst containing a specific metallocene compound. The ethylene-.alpha.-olefin-nonconjugated polyene random copolymer prepared by the process has such properties that (i) the copolymer contains units derived from ethylene (a) and units derived from the .alpha.-olefin of 3 or more carbon atoms (b) in a molar ratio of 40/60 to 95/5 ?(a)/(b)!, (ii) the iodine value is 1 to 50, (iii) the intrinsic viscosity (.eta.) is more than 0.1 dl/g and less than 8.0 10 dl/g, (iv) the intensity ratio D of T.alpha..beta. to T.alpha..alpha. in the .sup.13 C-NMR spectrum, T.alpha..beta./T.alpha..alpha., is not more than 0.5, (v) the B value is 1.00 to 1.50, (vi) the glass transition temperature Tg is not higher than -50.degree. C., and (vii) the ratio g.eta.Type: GrantFiled: January 14, 1997Date of Patent: September 15, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Toshihiro Sagane, Toshiyuki Tsutsui, Masaaki Kawasaki, Keiji Okada, Hidenari Nakahama, Tetsuo Tojo
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Patent number: 5807946Abstract: Motor vehicle brake parts based on an ethylene, alpha-olefin, vinyl norbornene elastomeric polymer are manufactured with more efficiency due to brake part compounds having lower viscosity, faster and fuller cures than ethylene, alpha-olefins, diene monomer compounds, where the diene monomer is other than vinyl norbornene. Additionally, the brake parts based on the ethylene, alpha-olefin, vinyl norbornene elastomeric polymer have improved resistance to elevated temperature properties, and good heat aging characteristics, compared to for instance ethylene, alpha-olefin, non-conjugated diene elastomers (where the diene is other than vinyl norbornene) or styrene butadiene rubbers.Type: GrantFiled: June 14, 1995Date of Patent: September 15, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Eric Paul Jourdain, Periagaram S. Ravishankar
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Patent number: 5786441Abstract: A functionalized polymer comprising a polymeric segment, having at least one cyclic amine end group, defined according to formula (I) ##STR1## where Z is an anionically-polymerized polymer; R.sub.1 is selected from the group consisting of organic groups containing from 1 to about 12 carbon atoms and a bridging bond; each R.sub.2 is independently selected from the group consisting of hydrogen, organic groups containing from 1 to about 12 carbon atoms, and a bridging bond; each R.sub.3 is independently selected from the group consisting of hydrogen and organic groups containing from 1 to about 12 carbon atoms; a is an integer from 4 to about 16; and b is an integer from 0 to about 12; and optionally including a bridge, formed by the selection of two of said bridging bonds, the bridge having 0 to about 6 carbon atoms between the bridging ring members; said polymer having been crosslinked. Also provided are vulcanizable compositions of matter, vulcanizates, and tires of the functionalized polymers.Type: GrantFiled: December 31, 1996Date of Patent: July 28, 1998Assignee: Bridgestone CorporationInventors: David F. Lawson, William L. Hergenrother, Michael L. Kerns
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Patent number: 5770681Abstract: The solution stability of a modified bisimide resin is enhanced by partially polymerizing a mixture of a bisimide monomer and a reactive triene which contains a conjugated double bond capable of Diels-Alder reaction with the bisimide. Such partial polymerization of a bisimide with a reactive triene such as myrcene provides a modified bisimide having good solubility in an organic solvent.Type: GrantFiled: May 30, 1991Date of Patent: June 23, 1998Assignee: Shell Oil CompanyInventor: Larry Steven Corley
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Patent number: 5763556Abstract: Substantially random ethylene copolymers containing at least 3.0 mole percent of geminally disubstituted olefin monomers are described. The geminally disubstituted olefin monomers can be represented by the generic formula R.sub.1 =R.sub.2 (R.sub.3)(R.sub.4), where R.sub.1 is CH.sub.2, R.sub.2 is C, and R.sub.3 and R.sub.4 are, independently, essentially linear hydrocarbyl groups having from 1 to 30 carbon atoms, or more, and containing one carbon atom bound directly to R.sub.2. The copolymers can be prepared by coordination polymerization by means of contacting at least one geminally disubstituted olefin monomer and ethylene, optionally with one or more other coordination polymerizable monomers, with a catalyst system comprising a monocyclopentadienyl, heteroatom-containing Group 4 transition metal catalyst component.Type: GrantFiled: May 21, 1996Date of Patent: June 9, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Timothy Daniel Shaffer, Jo Ann Marie Canich, Kevin Richard Squire
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Patent number: 5756624Abstract: A method of tackifying an adhesive is provided, the improvement comprising the use of a copolymer consisting of monomer units derived monomers consisting of:(A) 10 to 50% by weight of a terpene with no conjugated double bonds,(B) 20 to 50% by weight of a member selected from the group consisting of olefinically unsaturated monocarboxylic acids containing 3 to 5 carbon atoms and anhydrides thereof, and olefinically unsaturated dicarboxylic acids containing 3 to 5 carbon atoms and anhydrides thereof, and(C) 40 to 50% by weight of an ester selected from the group consisting of esters and semiesters of olefinically unsaturated monocarboxylic containing 3 to 5 carbon atoms and esters and semiesters of olefinically unsaturated dicarboxylic acids containing 3 to 5 carbon atoms, with the proviso that the sum total of said monomers is 100% by weight.Type: GrantFiled: November 4, 1996Date of Patent: May 26, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Arno Behr, Wolfgang Ritter, Hans-Peter Handwerk, Oliver Pietsch
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Patent number: 5747618Abstract: The invention features linear copolymers prepared from mixtures of allenes and alkynes. The new copolymers have the formula: ##STR1## wherein R.sub.1 through R.sub.6 are, independently, H, an alkyl, an aryl, a phenyl or substituted phenyl, an alkoxy, or an aryloxyl, x+n is 1 to 10,000, and m is 1 to 10,000. The invention also features efficient methods of preparing the new copolymers using nickel or palladium catalysts.Type: GrantFiled: September 27, 1996Date of Patent: May 5, 1998Inventors: Bruce M. Novak, Mitsuru Nakano
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Patent number: 5744566Abstract: An unsaturated copolymer based on olefin which is superior in dynamic fatigue resistance (flexural fatigue resistance), weatherability, fastness to ozone, stability in thermal aging and exhibits also superior performances in chemical reactivity, in processibility and in compatibility as well as co-vulcanizability with aromatic ring-containing resins, such as styrene-butadiene rubber (SBR) etc., and is useful for materials of various rubber products and as modifier for resin products is proposed, said copolymer comprising a structural unit derived from an .alpha.-olefin having 2-20 carbon atoms in a proportion of 30-99.8 mole %, a structural unit derived from an aromatic ring-containing vinyl monomer in a proportion of 0.1-60 mole % and a structural unit derived from a chain-formed non-conjugated triene or tetraene having in the molecule one vinyl group in a proportion of 0.1-10 mole % and said copolymer having an intrinsic viscosity determined in Decalin.RTM. at 135.degree. C. of 0.05-10 dl/g.Type: GrantFiled: December 27, 1996Date of Patent: April 28, 1998Assignee: Mitsui Chemicals, Inc.Inventors: Toshiyuki Tsutsui, Masaaki Kawasaki
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Patent number: 5739225Abstract: An olefin polymer is prepared by homopolymerizing an olefin or copolymerizing two different olefins or an olefin and another polymerizable unsaturated compound in the presence of a polymerization catalyst containing (A) a transition metal compound represented by the formula (I):CpML.sub.x-1 (I)wherein M is a metallic element of Groups 3 to 10 of the Periodic Table or a metallic element of the lanthanide series; Cp is a cyclic compound group having a cyclopentadienyl skeleton of 5 to 30 carbon atoms; L is R', OR', SR', SO.sub.3 R'N'R'R", PR'R", wherein R' and R" are each a C.sub.1-20 hydrocarbon group or a silyl group, NO.sub.2, a halogen atom, a 1-pyrrolyl group or a 1-pyrrolidinyl group, with the proviso that at least one of the L groups is OR', SR', N'R'R" or PR'R", wherein R' and R" are each a C.sub.Type: GrantFiled: June 28, 1996Date of Patent: April 14, 1998Assignee: Idemitsu Kosan Co., Ltd.Inventors: Toshinori Tazaki, Shuji Machida, Nobuo Kawasaki, Nobuhiro Yabunouchi, Yasunori Kadoi, Mizutomo Takeuchi, Kenji Nakacho, Haruo Shikuma, Noriyuki Tani
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Patent number: 5733980Abstract: This invention relates to block polymers containing both crystalline and elastomeric blocks, the block copolymer having an A block and a B block. The A block is a polyethylene or an ethylene polymer optionally containing an alpha-olefin and is generally crystalline. The B block contains an ethylene, .alpha.-olefin copolymer segment and optionally contain an ethylene, .alpha.-olefin, non-conjugated diene terpolymer segment. If the B block contains a diene containing segment, the diene containing segment is furthest from the junction of the A and the B blocks. Also disclosed is a process for manufacture of the block copolymers and methods for coupling the block copolymers. Coupled block copolymers are useful as thermoplastic elastomers exhibiting physical properties approaching those of crosslinked EP or EPDM elastomers, but showing thermal processability after coupling.Type: GrantFiled: September 22, 1995Date of Patent: March 31, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Charles Cozewith, Gary William Ver Strate, Roger K. West, Gaetano A. Capone
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Patent number: 5731395Abstract: A functional group-containing porous resin prepared by polymerization of a monomer mixture of, based on 100% by weight of the total amount of the monomers, 15 to 97% by weight of divinylbenzene, 0 to 82% by weight of at least one aromatic monovinyl monomer selected from the group consisting of styrene, methylstyrene and ethylvinylbenzene and 3 to 30% by weight of a vinylbenzyloxyalkyl derivative represented by the formula ##STR1## wherein n is an integer of 2 to 16 and A represents a hydroxyl group or a halogen atom, and a process for preparing the same. The above-mentioned porous resin of the invention can fully exhibit its function due to the marked presence of a functional group on the surface of the resin and/or in the neighborhood thereof.Type: GrantFiled: November 13, 1996Date of Patent: March 24, 1998Assignee: Arakawa Chemical Industries, Ltd.Inventor: Takaharu Tsuno
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Patent number: 5708112Abstract: Disclosed are a styrene copolymer having a weight average molecular weight of about 200,000 to 2,000,000, having 1 to 20 branching points in the Z-average molecular weight, and having a methyl ethyl ketone/methanol mixture-insoluble matter content of not more than 5% by weight and a methanol-soluble matter content of not more than 5% by weight; processes for preparing the styrene copolymer; a polystyrene resin composition containing the styrene copolymer; and injection-molded article prepared by injection-molding the polystyrene resin composition.Type: GrantFiled: April 11, 1995Date of Patent: January 13, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Hayato Kihara, Satoshi Nakagawa, Shuji Yoshimi, Shinichi Mitsui
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Patent number: 5698651Abstract: Disclosed is an ethylene copolymer rubber which is a random copolymer rubber of (a) ethylene, (b) an .alpha.-olefin of 3 to 20 carbon atoms, (c) a nonconjugated polyene containing, in one molecule, one carbon-to-carbon double bond polymerizable by a metallocene catalyst among carbon-to-carbon double bonds, and (d) a nonconjugated polyene containing, in one molecule, two carbon-to-carbon double bonds polymerizable by the metallocene catalyst among carbon-to-carbon double bonds. The ethylene copolymer rubber has excellent moldability, high vulcanization rate, good mechanical properties such as high vulcanization strength, excellent low-temperature flexibility and thermal aging resistance. Also disclosed is a process for preparing the ethylene copolymer rubber with high activity, high conversion ratio of .alpha.-olefin and high random copolymerizability.Type: GrantFiled: June 17, 1996Date of Patent: December 16, 1997Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Masaaki Kawasaki, Toshiyuki Tsutsui, Tetsuo Tojo, Takashi Hakuta
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Patent number: 5696214Abstract: Disclosed is a process for preparing an ethylene-.alpha.-olefin-nonconjugated polyene random copolymer comprising random copolymerizing (a) ethylene, (b) an .alpha.-olefin of 3 or more carbon atoms and (c) a nonconjugated polyene in the presence of a metallocene catalyst containing a specific metallocene compound. The ethylene-.alpha.-olefin-nonconjugated polyene random copolymer prepared by the process has such properties that (i) the copolymer contains units derived from ethylene (a) and units derived from the .alpha.-olefin of 3 or more carbon atoms (b) in a molar ratio of 40/60 to 95/5 ?(a)/(b)!, (ii) the iodine value is 1 to 50, (iii) the intrinsic viscosity (.eta.) is more than 0.1 dl/g and less than 8.0 10 dl/g, (iv) the intensity ratio D of T.alpha..beta. to T.alpha..alpha. in the .sup.13 C-NMR spectrum, T.alpha..beta./T.alpha..alpha., is not more than 0.5, (v) the B value is 1.00 to 1.50, (vi) the glass transition temperature Tg is not higher than -50.degree. C., and (vii) the ratio g.eta.Type: GrantFiled: December 19, 1995Date of Patent: December 9, 1997Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Toshihiro Sagane, Toshiyuki Tsutsui, Masaaki Kawasaki, Keiji Okada, Hidenari Nakahama, Tetsuo Tojo
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Patent number: 5670588Abstract: A catalyst component is disclosed for use in the homo- or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q and a second compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing high molecular weight, wide distribution thereof and other desirable qualities in the polymer product.Type: GrantFiled: December 1, 1995Date of Patent: September 23, 1997Assignee: Nippon Oil Co., Ltd.Inventors: Yoshio Tajima, Naoki Kataoka, Yosuke Numao, Takashi Seki, Kazuo Matsuura