Ethylenic Monomer Contains At Least Two Ethylenic Groups Patents (Class 524/534)
  • Publication number: 20020188064
    Abstract: The present invention is directed to a polymeric composition including a poly(alkenyl-co-maleimide) and an inorganic salt. Optionally, an extender is included. The composition exhibits good strength and vibration damping properties.
    Type: Application
    Filed: May 22, 2001
    Publication date: December 12, 2002
    Applicant: Bridgestone/Firestone Research, Inc.
    Inventors: Xiaorong Wang, Victor J. Foltz
  • Patent number: 6384129
    Abstract: A semi-batch process is provided for making a diene rubber latex. The process involves (a) providing an amount of an initial liquid batch composition (containing water, emulsifier and diene monomer), sufficient to occupy from 50 to 80 volume percent of a pressure reaction vessel based on the total volume of the vessel, (b) feeding to the vessel a liquid feed composition containing diene monomer and initiator, (c) providing cooling to the vessel to cool the liquid and vapor therein, and (d) reacting the diene monomer to a final diene monomer conversion level of at least 80 mol percent based on the total moles of diene monomer used in the reaction, and the final liquid volume level in the vessel being at least 80 volume percent based on the total volume of the vessel.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: May 7, 2002
    Assignee: General Electric Company
    Inventor: Vern Lowry
  • Patent number: 6372837
    Abstract: The invention relates to a method for preparing a nanocomposite material based on a polymeric matrix and a layered double hydroxide, comprising the steps of: a) providing a layered double hydroxide which contains an amount of anions of at least 20%, based on the total number of anions of the layered double hydroxide, which anions are compatible and/or reactive with the polymeric matrix: b) mixing the layered double hydroxide with a monomeric material for forming the polymeric matrix, in an amount such that the polymeric matrix is present in the nanocomposite material in an amount of at least 50% by weight, based on the nanocomposite material; c) polymerizing the monomeric material to form the polymeric matrix. The invention further relates to a nanocomposite material obtainable by such method and to a shaped article manufactured from such nanocomposite material.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: April 16, 2002
    Assignee: Nederlandse Organisatie voor Toegepast Natuurweten Schappelijk Onderzoek TNO
    Inventors: Hartmut Rudolph Fischer, Leon Hubertus Gielgens
  • Patent number: 6365661
    Abstract: The invention relates to a nanocomposite material based on a polymeric matrix and a layered double hydroxide, wherein the polymeric matrix is present in an amount of at least 50% by weight, based on the nanocomposite material, and wherein the layered double hydroxide contains an amount of anions of at least 20%, based on the total number of anions of the layered double hydroxide, which anions are compatible and/or reactive with the polymeric matrix, and wherein at least 5% of the above amount of anions contain a second charge-carrying group. The invention further relates to a method for preparing such a nanocomposite material and to a shaped article from such a nanocomposite material.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: April 2, 2002
    Assignees: Nederlandse Organisatie voor Toegepast, Natuurwetenschappelijk Onderzoek TNO
    Inventors: Hartmut Rudolph Fischer, Leon Hubertus Gielgens
  • Patent number: 6359064
    Abstract: A process for forming an elastomeric polymer gel composition includes forming a blend by combining a poly(alkenyl-co-maleimide) that includes a maleimide and at least one monomer contributed unit derived from vinyl aromatic hydrocarbons, R1R2 ethylenes, and alkyl vinyl ethers; with a maleated polyalkylene. This is followed by addition of a crosslinking agent, which is allowed to react with the poly(alkenyl-co-maleimide) and maleated polyalkylene to form a polyalkyenyl grafted poly(alkenyl-co-maleimide). The polyalkenyl grafted poly(alkenyl-co-maleimide) is further blended with a polyester.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: March 19, 2002
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, James E. Hall
  • Patent number: 6303684
    Abstract: A hot melt composition including 100 parts by weight of a styrene thermoplastic elastomer having an intrinsic viscosity [&eegr;] of not less than 1 dl/g and 200 to 3000 parts by weight of a liquid softener selected from process oil, liquid rubber and a modified substance thereof, wherein: (a) the composition has a softening point measured by ring and ball softening pint method of from 120 to 230° C.; (b) the composition generates no crack when not less than 75% of a compressive strain is applied under an atmosphere of a temperature of −30 to 40° C.; and (c) the composition does not flow when it is allowed to stand in a load-free state under an atmosphere of a temperature of 100° C. for 24 hours.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: October 16, 2001
    Assignee: Asahi Chemical Synthetic Co., Ltd.
    Inventors: Yasuhito Suzuki, Mitsuru Sakashita, Tomo Iwata, Ryotaro Nozaki, Jun-ichi Nakayama
  • Patent number: 6268427
    Abstract: A method for increasing the damping properties of tire rubber comprising the steps of adding a saturated damping additive to a vulcanizable composition of matter, and processing the vulcanizable composition of matter containing the damping additive into tire rubber.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: July 31, 2001
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Michael W. Hayes
  • Patent number: 6242525
    Abstract: Thermoplastic elastomers of high strength, high elasticity and good dyeability, the incorporated elastomeric particles of which have an average particle diameter of 0.05 to 5 &mgr;m, from propylene homopolymers and/or propylene copolymers, elastomeric C2 to C8 olefin copolymers and/or terpolymers and multifunctional, unsaturated monomers are formed by a method, for which mixtures of propylene homopolymers and/or propylene copolymers, elastomeric C2 to C8 olefin copolymers and/or terpolymers and readily volatile C4 to C7 dienes are reacted in the melt. The thermoplastic elastomers, as well as mixtures with conventional polyolefins, are suitable for use in the vehicle industry, in the domestic appliances industry, in the building sector and in medical technology.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: June 5, 2001
    Assignee: Borealis GmbH
    Inventors: Manfred Raetzsch, Achim Hesse, Norbert Reichelt, Hartmut Bucka, Hermann Heinemann, Matthias Stolp, Hans-Joachim Radusch
  • Patent number: 6204320
    Abstract: The subject invention discloses a liquid isoprene-butadiene rubber (IBR) which is particularly valuable for use in making treads for high performance automobile tires, including race tires, that exhibit superior dry traction characteristics and durability. The isoprene-butadiene rubber of this invention is a liquid at room temperature and is comprised of repeat units which are derived from about 5 weight percent to about 95 weight percent isoprene and from about 5 weight percent to about 95 weight percent 1,3-butadiene, wherein the repeat units derived from isoprene and 1,3-butadiene are in essentially random order. The IBR of this invention also has a low number average molecular weight which is within the range of about 3,000 to about 50,000 and has a glass transition temperature which is within the range of about −50° C. to about 20° C.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: March 20, 2001
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Wen-Liang Hsu, Adel Farhan Halasa
  • Patent number: 6194505
    Abstract: A rubber composition for solid golf balls comprising: (a) 50 to 100 parts by weight of a polybutadiene rubber with a 1,4-cis bond content of 80% or more, a 1,2-vinyl bond content of 2.0% or less, and a ratio (Mw/Mn) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of 3.5 or less, (b) 0 to 50 parts by weight of a diene-type rubber other than the component(a), provided that the total amount of the component (a) and component (b) is 100 parts by weight, (c) 10 to 50 parts by weight of a cross-linking monomer, (d) 20 to 80 part by weight of inorganic filler, and (e) an effective amount of an organic peroxide. The solid golf balls prepared from the rubber composition provide a good shot feeling, run a long distance, and exhibit superior durability.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: February 27, 2001
    Assignee: JSR Corporation
    Inventors: Takuo Sone, Iwakazu Hattori
  • Patent number: 6174933
    Abstract: Radiation polymerizable vinylether-based compositions, and cured vinylether-based formulations having a predetermined balance of tack, peel and shear particularly suitable for use in pressure sensitive adhesives are described.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: January 16, 2001
    Assignee: ISP Investments Inc.
    Inventors: James A. Dougherty, John McKittrick, Arvind M. Mathur
  • Patent number: 6174954
    Abstract: A resin composition, comprising the components of: (a) 10 to 40% by weight of (i) an unsaturated monomer having at least two double bonds which can effect radical polymerization or (ii) a mixture of said unsaturated monomer and an unsaturated monomer copolymerizable with said unsaturated monomer, (b) 50 to 85% by weight of an inorganic filler, (c) 1 to 20% by weight of a cross-linked resin particle, (d) 0.1 to 20% by weight of a resin having a methyl methacrylate unit, and (e) 0.01 to 5% by weight of a radical polymerization initiator, is provided. The resin composition has excellent handling property, generates little odor, and can be easily molded to obtain artificial marble.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: January 16, 2001
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Yoshihide Amekawa
  • Patent number: 6166147
    Abstract: The present invention is a hot melt pressure sensitive adhesive comprising a block copolymer structure having an A--B--A backbone block copolymer having B or C blocks attached to the backbone, wherein the A--B--A block backbone is saturated and the B or C block is of the same composition or of a different composition than the midblock of the backbone.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: December 26, 2000
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventors: Mark S. Kroll, Carolyn A. Fischer
  • Patent number: 6156835
    Abstract: A polymer composite comprising a hydroxy-phenoxyether or polyester polymer matrix having dispersed therein layers of an inorganic material derived from a multilayered inorganic material having organophilic properties. The dispersion of the multilayered inorganic material in the polymer matrix is such that an increase in the average interlayer spacing of the layered inorganic material occurs. This increase in interlayer spacing occurs to a significant extent resulting in the formation of a nanocomposite. The polymers are preferably derived from a diglycidyl ether or ester or an epihalohydrin and a dinucleophile such as a dicarboxylic acid, a difunctional amine, a bisphenol or a sulfonamide. As the organophilic inorganic material clay minerals modified with organic ammonium compounds are used.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: December 5, 2000
    Assignee: The Dow Chemical Company
    Inventors: Kenneth W. Anderson, Chai-Jing Chou, Jerry E. White, Christine A. Polansky
  • Patent number: 6153715
    Abstract: A propylene resin composition composed of a nucleating agent and a propylene resin having a melt index (MI) of not greater than 1.2 g/10 min and satisfying a relationship between elongational viscosity (.eta..sub..EPSILON.) and melt index (MI) represented by2.0.times.10.sup.5 .times.MI.sup.-0.68 .gtoreq..eta..sub..EPSILON. .gtoreq.1.5.times.10.sup.5 MI .times.MI.sup.-0.68.The composition is endowed with high-rigidity, has excellent drawdown resistance, ensures practical discharge rate during blow-molding at low resin temperature of 220.degree. C. or less, and enables high-productivity production of large-sized blow-molded parts featuring light weight, excellent rigidity, dimensional stability, and heat resistance. Blow-molding of the propylene resin composition provides a blow-molded article which is advantageously used as, particularly, a large-sized automobile part, such as a bumper, a bumper beam, a seat back, an instrument panel, or a like part.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: November 28, 2000
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Tetsuya Nakamura, Masaya Tsubokawa
  • Patent number: 6143818
    Abstract: An elastomeric-based hot melt adhesive composition having a variety of end uses, particularly in construction and elastic attachment applications on nonwoven disposable articles. The composition includes an elastomeric rubber polymer or a mixture of elastomeric rubber polymers together with a semicrystalline olefinic polymer or a mixture of semicrystalline olefinic polymers, a tackifier resin, a plasticizer, a wax and a stabilizer. The preferred elastomeric rubber polymer is an ethylene-propylene rubber copolymer (EPR) and/or an ethylene-propylene diene monomer rubber terpolymer (EPDM). The hot melt adhesive composition can be applied using common application techniques such as extruding or spraying.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: November 7, 2000
    Assignee: Ato Findley, Inc.
    Inventors: Baoyu Wang, Malcolm R. Luebkert, III
  • Patent number: 6140387
    Abstract: Gels for thermotropic layers, obtainable by irradiating a mixture comprisinga) an uncrosslinked polymer in amounts of less than 5% by weight, based on the sum of a), b) and c),b) monomers which can be polymerized by means of free radicals, andc) water or an organic solvent, or a mixture thereof,with high-energy light.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventor: Matthias Gerst
  • Patent number: 6133350
    Abstract: An oil-free compound which comprises from 20 to 90% by weight of a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene optionally hydrogenated, from 10 to 70% by weight of a low viscosity amorphous polyolefin, and from 0.1 to 20% by weight of carbon black. A stable oil-free bituminous composition which comprises from 80 to 98% by weight of a bituminous component, from 2 to 20% by weight of the above compound. A membrane suitable for single ply roofing prepared from the above compound.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: October 17, 2000
    Assignee: Shell Oil Company
    Inventors: Robert Quillin Kluttz, Harriet Jeanne Spinn Kendrick
  • Patent number: 6063830
    Abstract: The present invention provides a dental curable material suitable for a production of an artificial teeth having a strong toughness, wear resistance, transparency and moldability, which comprises a silane-treated silica uniformely dispersed in urethane (meth)acrylate (a): said silica has a 1 to 85 nm, with at least one silane compound represented by the formula (1):YnSiX.sub.4-n (1)wherein Y is a hydrocarbon group or a reactive group containing a vinyl-polymerizable group; X is a hydrolyzable group; and n is an integer of 1, 2 or 3, and is uniformly dispersed in a urethane (meth)acrylte (b).
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: May 16, 2000
    Assignee: Kabushiki Kaisha Shofu
    Inventors: Mikito Deguchi, Hiroyuki Shioi, Akihiro Nagafuji
  • Patent number: 6013720
    Abstract: This invention discloses an aqueous slurry for coating the surface of rubber slabs or pellets to reduce the tendency of the rubber slabs or pellets to stick together, said aqueous slurry being comprised of (1) from about 1 weight percent to about 15 weight percent of syndiotactic-1,2-polybutadiene having a melting point of no more than about 140.degree. C. and a particle size of no more than about 40 mesh; (2) from about 0.1 weight percent to about 5 weight percent of a suspending agent; (3) from about 0.05 weight percent to about 2 weight percent of a wetting agent; and (4) from about 78 weight percent to about 98 weight percent water. The present invention further reveals a coated rubber slab having resistance to sticking which is comprised of a rubber slab having a coating thereon, wherein said coating is comprised of syndiotactic-1,2-polybutadiene having a melting point of no more than about 140.degree. C. and a particle size of no more than about 40 mesh.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: January 11, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony Joseph Bell, Eilert Aloysius Ofstead, Ronald Lee Holsapple
  • Patent number: 6011088
    Abstract: Novel organic silicon compounds of formula (1) are provided. ##STR1## R.sup.1 is a monovalent C.sub.1 -C.sub.4 hydrocarbon group, R.sup.2 is a divalent C.sub.2 -C.sub.3 hydrocarbon group, R.sup.3 is a monovalent C.sub.1 -C.sub.2 hydrocarbon group, m is an integer of 3-10, n is equal to 0, 1 or 2, p is equal to 0 or 1, and the sum of n+p is equal to 0, 1 or 2. Inorganic fillers are surface treated with the organic silicon compounds. Compositions comprising EPR and/or EPDM in admixture with the treated inorganic fillers are electrically insulating and have improved oil resistance and mechanical strength.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: January 4, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hideyoshi Yanagisawa, Shoji Ichinohe
  • Patent number: 6004425
    Abstract: One-component hot-curing structural adhesives based on liquid rubbers, which may optionally contain functional groups, solid rubbers, thermoplastic polymer powders and sulfur and also vulcanization accelerators are suitable for bonding metal parts. Tensile shear strengths of more than 15 MPa and high breaking elongations of more than 15% can be obtained. These adhesives are substantially free from low molecular weight epoxy resins and are particularly suitable for use in white-shell assembly in the car industry.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 21, 1999
    Assignee: Henkel-Teroson GmbH
    Inventors: Peter Born, Frank Dittrich
  • Patent number: 5912296
    Abstract: There are disclosed a gel or polymer composition which comprises 100 parts by weight of: a graft copolymer composition formed from the graft reaction of a maleate functionalized ethylene-alpha-olefin copolymer and a maleate functionalized polypropylene with an organic diamine grafting agent, and at least 30 parts by weight of an extender oil or a low molecular weight organic component. These gel compositions have super soft properties, heat resistance, and/or damping properties.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: June 15, 1999
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Frank J. Clark, Hideo Takeichi, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
  • Patent number: 5910530
    Abstract: There is disclosed a gel or polymer composition containing: 100 parts by weight of a graft copolymer composition formed by the reaction of an organic diamine grafting agents with maleate functional groups on an elastomeric block containing block copolymer and with maleate functional groups on polypropylene, and at least 30 parts by weight of an extender oil or a low molecular weight organic component. These gel compositions have super soft properties, heat resistance, and/or damping properties.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: June 8, 1999
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Frank J. Clark, Hideo Takeichi, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
  • Patent number: 5886125
    Abstract: A copolymer composition and coating comprising the copolymer composition containing a vinyl silane of the formula ##STR1## where R.sub.1 is an aryl or alkyl group having 1 to 10 carbon atoms and R.sub.2 is a hydrolysable group; anda vinyl ester of a branched fatty acid having the formula ##STR2## wherein R.sub.3, R.sub.4, R.sub.5 are hydrogen or alkyl groups with 1 to 12 carbon atoms andwherein the total of R.sub.3, R.sub.4 and R.sub.5 contain at least 3 carbon atoms andoptionally at least one olefinically unsaturated compound.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: March 23, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Josef Huybrechts
  • Patent number: 5883173
    Abstract: The present invention relates to a latex comprising water and a layered material intercalated with a polymer. The invention also relates to a nanocomposite material comprising a layered material intercalated with a polymer. The latex can be produced by forming a dispersion of layered material in water, adding surfactant, polymerizable monomer or monomers, and a polymerization initiator to the mixture and then polymerizing the monomer to form a latex. The latex can also be formed from preformed polymers. Composite materials formed from latexes produced by either method have improved mechanical properties and reduced air permeability.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: March 16, 1999
    Assignee: Exxon Research and Engineering Company
    Inventors: Chester W. Elspass, Dennis G. Peiffer, Edward Nathan Kresge, Dong-Tsai Hsieh, James Joseph Chludzinski, Keng S. Liang
  • Patent number: 5861212
    Abstract: An adhesive composition comprised of (A) a latex of 100 wt. parts of a carboxyl group-containing highly saturated nitrile-conjugated diene copolymer rubber, (B) 5-30 wt. parts of a resorcinol-formaldehyde resin, and (C) 2-10 wt. parts of an aromatic epoxy resin. A composite comprised of a nitrile group-containing highly saturated copolymer rubber and a fibrous material, which has been treated with the adhesive composition. This composite is useful for belts.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: January 19, 1999
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Osamu Mori, Mitsugu Ishihara
  • Patent number: 5852089
    Abstract: Rubber compositions for automotive tire treads are made up of a selected class of base rubbers and a selected class of synthetic plasticizers in specified amounts. The plasticizer is derived from esterification of a diglycerin or an alkylene oxide adduct of a polyhydric alcohol with a selected class of higher fatty acids. Gripping performance is maintained for a prolonged period of time.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: December 22, 1998
    Assignee: The Yokohama Rubber Co,, Ltd.
    Inventors: Tetsuji Kawazura, Eri Miura
  • Patent number: 5849824
    Abstract: The invention provides for a thermoset or thermoplastic gel composition containing a polymer with anhydride groups along the polymer backbone at least at outset of the fabrication process and an extender fluid, optionally including thermally conductive fillers. The gel compositions are useful for sealing wires, vibration dampening, sporting goods, and toys.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: December 15, 1998
    Assignee: Raychem Corporation
    Inventors: Frank Mercer, Hendrik Graulus
  • Patent number: 5795922
    Abstract: A radiopaque bone cement used to repair bone or other hard tissues is provided. The bone cement is made from combining a composition containing an acrylic powder and a radiopacifier with a corresponding liquid monomer. Prior to being added to the composition, the radiopacifier is microencapsulated with a bone cement compatible material. When combined with the liquid monomer, the bone cement compatible material dissolves releasing the radiopacifier particles into a bone cement matrix. By being microencapsulated, the radiopacifier is prevented from agglomerating in the cement. Instead, the radiopacifier particles become dispersed throughout the bone cement matrix which not only creates a radiopaque cement but also increases the fatigue life of the cement.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 18, 1998
    Assignee: Clemson University
    Inventors: Hany W. Demian, Shalaby W. Shalaby
  • Patent number: 5744534
    Abstract: A light scattering material is prepared by mixing with and dispersing in a transparent elastomer matrix particles of a transparent material. The matrix has a Tg of lower than room temperature and the transparent material has a different index of refraction form the matrix.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: April 28, 1998
    Assignee: Bridgestone Corporation
    Inventors: Minoru Ishiharada, Itsuo Tanuma, Kazuo Naito
  • Patent number: 5741845
    Abstract: The invention concerns a process for the production of block copolymers or aqueous dispersions and emulsions thereof, whereby azo macroinitiators are reacted with radical-polymerizable monomers or a mixture of several radical-polymerizable monomers. The azo macroinitiators are obtained by reacting simple reactive azo compounds with prepolymers with a molecular weight between 400 and 20000, which possess at least 2 functional groups, e.g. polyurethanes or polyesters.The aqueous block copolymer dispersions and emulsions produced according to the invention are suitable for use for the production of paints, adhesives etc.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 21, 1998
    Assignee: Dainippon Ink & Chemicals Inc.
    Inventors: Rainer B. Frings, Shigeru Komazaki, Gerwald F. Grahe
  • Patent number: 5717029
    Abstract: The invention is a thermoformable polymer blend comprising:A) from 9 to 90 parts by weight of a monovinylidene aromatic polymer or an impact modified monovinylidene aromatic polymer, comprising from 1 to 25 weight percent of a rubber and 75 to 99 weight percent of a monovinylidene aromatic polymer matrix having a weight average molecular weight (M.sub.w) from 50,000 to 400,000, said weight percents being based on the total weight of said impact modified, monovinylidene aromatic polymer;B) from 9 to 90 parts by weight on an olefin polymer, selected from the group consisting of homopolymers of ethylene or propylene and copolymers of ethylene with one or more C.sub.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: February 10, 1998
    Assignee: The Dow Chemical Company
    Inventors: Jeffrey E. Bonekamp, Robert J. Donald, Steven B. Swartzmiller, Andre J. Uzee
  • Patent number: 5705559
    Abstract: Disclosed is a process for preparing crosslinked resin particles which comprises dispersing a resin having both a water-dispersible function and a self-crosslinkable function in one molecule in an aqueous medium and then three-dimensionally crosslinking.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: January 6, 1998
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hiroyuki Sakamoto, Kenshiro Tobinaga, Yasuyuki Tsuchiya, Hisaichi Muramoto, Yusuke Ninomiya, Keizou Ishii, Shinichi Ishikura
  • Patent number: 5705604
    Abstract: This invention relates to novel tire sealer and inflator compositions. The compositions may be aqueous or non-aqueous and comprise a petroleum residual resin sealant, an amorphous polyolefin, an organic solvent, a vapor pressure depressant, and a non-flammable propellant/inflator having an ozone depletion potential of zero. For the aqueous system, the composition further comprises an emulsifier. The compositions are useful for sealing and inflating a punctured tire in combination with a propellant/inflator.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: January 6, 1998
    Assignee: Pennzoil Products Company
    Inventor: Jiafu Fang
  • Patent number: 5693425
    Abstract: The present invention provides a novel multi-arm block copolymer, a novel pressure-sensitive adhesive made from a multi-arm elastomeric block copolymer, and a novel tape made therefrom. The multi-arm block copolymer has the general structure (A-B).sub.m Y(C-D).sub.n wherein A, B, C and D are polymer segments; Y is a residue of a multifunctional coupling agent; and m and n are the number of arms, where m and n are greater than 0 and the sum of m plus n is at least 3. A comprises a random copolymer of a monoalkenylarene and a conjugated diene; B and C comprise either a homopolymer of a conjugated diene or a polymer of two or more conjugated dienes; D comprises either a homopolymer of a monoalkenylarene or a copolymer of a monoalkenylarene and a conjugated diene wherein the Tg of D is greater than the Tg of A; and the weight percent of monoalkenylarene in the block copolymer is 40% or less.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: December 2, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jingjing Ma, Mark Kevin Nestegard
  • Patent number: 5688856
    Abstract: This invention is a process for producing stable polymer emulsions and latexes with an average particle size of less than one micron. The polymers are hydrogenated block copolymers of conjugated dienes and vinyl aromatic hydrocarbons which may or may not contain polar functionality. The process comprises making a polymer cement of the polymer and a blend of a non-aromatic solvent for the vinyl aromatic hydrocarbon block which is immiscible with water and a non-aromatic cosolvent, emulsifying the polymer cement by adding it to an aqueous phase containing at least one surfactant and removing the solvent, cosolvent and excess water.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: November 18, 1997
    Assignee: Shell Oil Company
    Inventors: David M. Austgen, Jr., Jeffrey G. Southwick, Bing Yang
  • Patent number: 5686518
    Abstract: An essentially stable monomer miniemulsion characterized by small monomer droplet size is prepared and is then polymerized to a polymer latex under free radical polymerization conditions. The monomer miniemulsions herein include, in addition to water, a surfactant, and a monomer or mixture thereof, one or more polymers which function as a polymeric co-surfactant. The monomer miniemulsions are characterized by average monomer droplet size of 10 to 500 nanometers, preferably 80 to 150 nanometers. The amount of polymer added as a co-surfactant is about 0.5 to about 5 percent by weight based on monomer weight. The monomer emulsion may contain either a single monomer or a monomer mixture. The monomer emulsion is polymerized under conventional emulsion polymerization conditions yielding a polymer latex having an average polymer particle size of 10 to 500 nanometers, preferably 80 to 150 nanometers, and a narrow particle size distribution, i.e., a polydispersity index of about 1.05 to about 1.40.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: November 11, 1997
    Assignee: Georgia Tech
    Inventors: Kevin J. Fontenot, F. Joseph Schork, Jay L. Reimers
  • Patent number: 5654370
    Abstract: Ethylene, alpha-olefin, non-conjugated bicyclic diene elastomeric polymers and/or polymer blends when compounded and formed into a calendered sheet, show surprising improvements for the combination in both green strength and peel adhesion in the unvulcanized state. Such green strength and peel adhesion provide benefits during calendering operations and subsequent joining of calendered sheets, while the compounded elastomeric polymers are in their green or unvulcanized state.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: August 5, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Sudhin Datta, Periagaram S. Ravishankar, Lawrence George Kaufman
  • Patent number: 5652292
    Abstract: A process for making clusters of individual polymer beads bonded together to minimize attritition in use or processing but characterized by an open structure for fast absorption of aqueous solutions comprises suspending a monomer mixture in a continuous phase at high shear agitation such that fine droplets of monomer are formed in an inert organic phase. A suspending agent which prevents the clusters from coalescing is provided. A first polyethylenically unsaturated crosslinking monomer, having substantial solubility in the aqueous phase, and an organic phase soluble initiator system are provided such that polymerization at the surface of the polymer particles occurs to form the porous clusters of the invention, A second substantially oil soluble crosslinker is optionally provided to further crosslink the clusters such that they do not coalesce.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: July 29, 1997
    Assignee: The Dow Chemical Company
    Inventor: Frederick W. Stanley, Jr., deceased
  • Patent number: 5614577
    Abstract: There are provided a pressure-sensitive adhesive and other compositions which free radical cured mixtures of at least one unsaturated elastomeric polymer and at least one organic additive which is substantially nonresponsive to action of free radicals and present in an amount sufficient to modify the properties of the cured elastomeric polymer.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: March 25, 1997
    Assignee: Avery Dennison Corporation
    Inventors: Yukihiko Sasaki, Kevin Lossner
  • Patent number: 5612406
    Abstract: The invention concerns a process for the production of block copolymers or aqueous dispersions and emulsions thereof, whereby azo macroinitiators are reacted with radical-polymerizable monomers or a mixture of several radical-polymerizable monomers. The azo macroinitiators are obtained by reacting simple reactive azo compounds with prepolymers with a molecular weight between 400 and 20000, which possess at least 2 functional groups, e.g. polyurethanes or polyesters.The aqueous block copolymer dispersions and emulsions produced according to the invention are suitable for use for the production of paints, adhesives etc.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 18, 1997
    Assignee: Dainippon Ink & Chemicals Inc.
    Inventors: Rainer B. Frings, Shigeru Komazaki, Gerwald F. Grahe
  • Patent number: 5604290
    Abstract: A self-crosslinking composition contains: (a) an oil having an unsaturated fatty acid or an ester of an unsaturated fatty acid as one of its components, (b) a drier, and (c) a polymer or an elastomer that is capable of crosslinking in the absence of a peroxide. A forming (such as a floor tile, a linoleum long floor material, a wall material and a water-proof sheet) may be manufactured by forming and curing the self crosslinking composition and then adding a filler. Since the self-crosslinking composition is capable of crosslinking without using peroxide, the crosslinking reaction is easily conducted without using special equipment to reject air. The composition has a number of advantages over crosslinking methods that use peroxide, including decreased scorch generation, decreased permanent compressive strain, and superior heat resistance and anti-aging resistance. The composition is free from pollution of sulfur and metal and generates no harmful gas during waste incineration.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: February 18, 1997
    Assignee: Tajima Incorporated
    Inventors: Satoru Aikawa, Eiichi Tajima
  • Patent number: 5589533
    Abstract: A self-crosslinking composition contains: (a) an oil having an unsaturated fatty acid or an ester of an unsaturated fatty acid as one of its components, (b) a drier, and (c) a polymer or an elastomer that is capable of crosslinking in the absence of a peroxide. A forming (such as a floor tile, a linoleum long floor material, a wall material and a water-proof sheet) may be manufactured by forming and curing the self crosslinking composition and then adding a filler. Since the self-crosslinking composition is capable of crosslinking without using peroxide, the crosslinking reaction is easily conducted without using special equipment to reject air. The composition has a number of advantages over crosslinking methods that use peroxide, including decreased scorch generation, decreased permanent compressive strain, and superior heat resistance and anti-aging resistance. The composition is free from pollution of sulfur and metal and generates no harmful gas during waste incineration.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: December 31, 1996
    Assignee: Tajima Incorporated
    Inventor: Satoru Aikawa
  • Patent number: 5587404
    Abstract: Gels for thermotropic layers, obtainable by irradiation of a mixture comprisinga) an uncrosslinked polymer,b) monomers capable of free-radical polymerization andc) water or an organic solvent or mixtures thereof, with high-energy light.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: December 24, 1996
    Assignee: Basf Aktiengesellschaft
    Inventors: Hubertus Kroner, Ekkehard Jahns, Manfred Mielke
  • Patent number: 5578673
    Abstract: A polymeric dispersant having a low T.sub.g polymer component, e.g. polybutadiene, and a pendant silylated group with hydrolysable groups capable of associating with and dispersing. finely divided inorganic fillers. Curable compositions containing the polymeric dispersant can be cured into composite materials having improved resistance to stress induced by thermal cycling.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 26, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventors: David P. Ashton, Geraldine A. Moorman, Roger N. Rothon
  • Patent number: 5571868
    Abstract: Ethylene, alpha-olefin, non-conjugated bicyclic diene elastomeric polymers and/or polymer blends when compounded and formed into a calendered sheet, show surprising improvements for the combination in both green strength and peel adhesion in the unvulcanized state. Such green strength and peel adhesion provide benefits during calendering operations and subsequent joining of calendered sheets, while the compounded elastomeric polymers are in their green or unvulcanized state.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: November 5, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Sudhin Datta, Periagaram S. Ravishankar, Lawrence G. Kaufman
  • Patent number: 5571582
    Abstract: The present invention relates to a container or bag for garbage which repels animals such as cats, dogs, rats, and crows. The article is made from a composition comprising a polyolefin having 10 to 7000 ppm by weight of a compound selected from methyl salicylate, ethyl salicylate, propyl salicylate, n-butyl salicylate, iso-butyl salicylate, iso-amyl salicylate, and menthol.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Masahiko Katoh
  • Patent number: 5548018
    Abstract: An aqueous primer composition comprising a copolymer wherein a cationic monomer, a specific alkoxysilane monomer, a silane macromonomer and an ethylenically unsaturated monomer are contained in aqueous medium. For this reason, regardless of the alkalinity of the substrate, the aqueous primer composition can form a highly water-resistant, alkali-resistant, tough film. Furthermore, compared with the prior art, a higher concentration and a lower viscosity, so that the resulting primer composition shows excellent penetration into the substrate at high concentration and provides for sufficient substrate-reinforcing and water-proofing effects. Moreover, when forming a film thereby and forming a finish layer thereon, this composition shows a high affinity for the top coating or adhesive to insure a firm integration of the finish layer with the substrate surface.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: August 20, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Masao Maekawa
  • Patent number: 5534561
    Abstract: Ad adhesive composition suitable for wound dressing and other medical applications comprising a mixture of polyisobutylene and a rubber polymer selected from the group consisting of random styrene butadiene copolymer (SBR) and halobutyl rubber so as to form a rubbery elastomer base matrix, and at least one hydrocolloid. The addition of the SBR or halobutyl rubber to the elastomer base offsets the possible degradation of the polyisobutylene upon sterilization, and therefore, helps to maintain the integrity of the composition. Water soluble hydrocolloid gums and water swellable cohesive strengthening agents are dispersed within the base matrix and may carry a pharmaceutical agent to be dispensed directly to a wound site.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: July 9, 1996
    Inventor: Robert W. Volke