Ethylenic Monomer Contains At Least Two Ethylenic Groups Patents (Class 524/534)
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Publication number: 20020188064Abstract: 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: ApplicationFiled: May 22, 2001Publication date: December 12, 2002Applicant: Bridgestone/Firestone Research, Inc.Inventors: Xiaorong Wang, Victor J. Foltz
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Patent number: 6384129Abstract: 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: GrantFiled: August 30, 1995Date of Patent: May 7, 2002Assignee: General Electric CompanyInventor: Vern Lowry
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Patent number: 6372837Abstract: 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: GrantFiled: August 31, 2000Date of Patent: April 16, 2002Assignee: Nederlandse Organisatie voor Toegepast Natuurweten Schappelijk Onderzoek TNOInventors: Hartmut Rudolph Fischer, Leon Hubertus Gielgens
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Patent number: 6365661Abstract: 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: GrantFiled: October 20, 2000Date of Patent: April 2, 2002Assignees: Nederlandse Organisatie voor Toegepast, Natuurwetenschappelijk Onderzoek TNOInventors: Hartmut Rudolph Fischer, Leon Hubertus Gielgens
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Patent number: 6359064Abstract: 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: GrantFiled: September 8, 2000Date of Patent: March 19, 2002Assignee: Bridgestone CorporationInventors: Xiaorong Wang, James E. Hall
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Patent number: 6303684Abstract: 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: GrantFiled: March 15, 1999Date of Patent: October 16, 2001Assignee: Asahi Chemical Synthetic Co., Ltd.Inventors: Yasuhito Suzuki, Mitsuru Sakashita, Tomo Iwata, Ryotaro Nozaki, Jun-ichi Nakayama
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Patent number: 6268427Abstract: 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: GrantFiled: February 18, 1999Date of Patent: July 31, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Michael W. Hayes
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Patent number: 6242525Abstract: 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: GrantFiled: November 5, 1998Date of Patent: June 5, 2001Assignee: Borealis GmbHInventors: Manfred Raetzsch, Achim Hesse, Norbert Reichelt, Hartmut Bucka, Hermann Heinemann, Matthias Stolp, Hans-Joachim Radusch
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Patent number: 6204320Abstract: 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: GrantFiled: February 12, 1999Date of Patent: March 20, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 6194505Abstract: 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: GrantFiled: December 1, 1998Date of Patent: February 27, 2001Assignee: JSR CorporationInventors: Takuo Sone, Iwakazu Hattori
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Patent number: 6174933Abstract: 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: GrantFiled: April 8, 1999Date of Patent: January 16, 2001Assignee: ISP Investments Inc.Inventors: James A. Dougherty, John McKittrick, Arvind M. Mathur
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Patent number: 6174954Abstract: 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: GrantFiled: May 28, 1998Date of Patent: January 16, 2001Assignee: Sumitomo Chemical Company, LimitedInventor: Yoshihide Amekawa
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Patent number: 6166147Abstract: 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: GrantFiled: October 10, 1997Date of Patent: December 26, 2000Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: Mark S. Kroll, Carolyn A. Fischer
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Patent number: 6156835Abstract: 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: GrantFiled: August 5, 1998Date of Patent: December 5, 2000Assignee: The Dow Chemical CompanyInventors: Kenneth W. Anderson, Chai-Jing Chou, Jerry E. White, Christine A. Polansky
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Patent number: 6153715Abstract: 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: GrantFiled: September 17, 1998Date of Patent: November 28, 2000Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Tetsuya Nakamura, Masaya Tsubokawa
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Patent number: 6143818Abstract: 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: GrantFiled: August 4, 1999Date of Patent: November 7, 2000Assignee: Ato Findley, Inc.Inventors: Baoyu Wang, Malcolm R. Luebkert, III
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Patent number: 6140387Abstract: 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: GrantFiled: July 8, 1998Date of Patent: October 31, 2000Assignee: BASF AktiengesellschaftInventor: Matthias Gerst
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Patent number: 6133350Abstract: 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: GrantFiled: August 1, 1997Date of Patent: October 17, 2000Assignee: Shell Oil CompanyInventors: Robert Quillin Kluttz, Harriet Jeanne Spinn Kendrick
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Patent number: 6063830Abstract: 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: GrantFiled: December 4, 1997Date of Patent: May 16, 2000Assignee: Kabushiki Kaisha ShofuInventors: Mikito Deguchi, Hiroyuki Shioi, Akihiro Nagafuji
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Patent number: 6013720Abstract: 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: GrantFiled: July 25, 1997Date of Patent: January 11, 2000Assignee: The Goodyear Tire & Rubber CompanyInventors: Anthony Joseph Bell, Eilert Aloysius Ofstead, Ronald Lee Holsapple
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Patent number: 6011088Abstract: 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: GrantFiled: February 3, 1998Date of Patent: January 4, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hideyoshi Yanagisawa, Shoji Ichinohe
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Patent number: 6004425Abstract: 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: GrantFiled: July 25, 1997Date of Patent: December 21, 1999Assignee: Henkel-Teroson GmbHInventors: Peter Born, Frank Dittrich
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Patent number: 5912296Abstract: 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: GrantFiled: May 19, 1997Date of Patent: June 15, 1999Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Frank J. Clark, Hideo Takeichi, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
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Patent number: 5910530Abstract: 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: GrantFiled: May 19, 1997Date of Patent: June 8, 1999Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Frank J. Clark, Hideo Takeichi, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
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Patent number: 5886125Abstract: 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: GrantFiled: February 25, 1997Date of Patent: March 23, 1999Assignee: E. I. du Pont de Nemours and CompanyInventor: Josef Huybrechts
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Patent number: 5883173Abstract: 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: GrantFiled: December 20, 1996Date of Patent: March 16, 1999Assignee: Exxon Research and Engineering CompanyInventors: Chester W. Elspass, Dennis G. Peiffer, Edward Nathan Kresge, Dong-Tsai Hsieh, James Joseph Chludzinski, Keng S. Liang
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Patent number: 5861212Abstract: 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: GrantFiled: June 4, 1996Date of Patent: January 19, 1999Assignee: Nippon Zeon Co., Ltd.Inventors: Osamu Mori, Mitsugu Ishihara
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Patent number: 5852089Abstract: 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: GrantFiled: March 26, 1993Date of Patent: December 22, 1998Assignee: The Yokohama Rubber Co,, Ltd.Inventors: Tetsuji Kawazura, Eri Miura
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Patent number: 5849824Abstract: 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: GrantFiled: February 6, 1996Date of Patent: December 15, 1998Assignee: Raychem CorporationInventors: Frank Mercer, Hendrik Graulus
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Patent number: 5795922Abstract: 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: GrantFiled: June 6, 1995Date of Patent: August 18, 1998Assignee: Clemson UniversityInventors: Hany W. Demian, Shalaby W. Shalaby
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Patent number: 5744534Abstract: 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: GrantFiled: April 12, 1996Date of Patent: April 28, 1998Assignee: Bridgestone CorporationInventors: Minoru Ishiharada, Itsuo Tanuma, Kazuo Naito
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Patent number: 5741845Abstract: 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: GrantFiled: June 7, 1995Date of Patent: April 21, 1998Assignee: Dainippon Ink & Chemicals Inc.Inventors: Rainer B. Frings, Shigeru Komazaki, Gerwald F. Grahe
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Patent number: 5717029Abstract: 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: GrantFiled: April 29, 1996Date of Patent: February 10, 1998Assignee: The Dow Chemical CompanyInventors: Jeffrey E. Bonekamp, Robert J. Donald, Steven B. Swartzmiller, Andre J. Uzee
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Patent number: 5705559Abstract: 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: GrantFiled: February 21, 1995Date of Patent: January 6, 1998Assignee: Nippon Paint Co., Ltd.Inventors: Hiroyuki Sakamoto, Kenshiro Tobinaga, Yasuyuki Tsuchiya, Hisaichi Muramoto, Yusuke Ninomiya, Keizou Ishii, Shinichi Ishikura
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Patent number: 5705604Abstract: 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: GrantFiled: June 28, 1996Date of Patent: January 6, 1998Assignee: Pennzoil Products CompanyInventor: Jiafu Fang
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Patent number: 5693425Abstract: 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: GrantFiled: December 15, 1995Date of Patent: December 2, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jingjing Ma, Mark Kevin Nestegard
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Patent number: 5688856Abstract: 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: GrantFiled: December 30, 1996Date of Patent: November 18, 1997Assignee: Shell Oil CompanyInventors: David M. Austgen, Jr., Jeffrey G. Southwick, Bing Yang
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Patent number: 5686518Abstract: 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: GrantFiled: January 3, 1995Date of Patent: November 11, 1997Assignee: Georgia TechInventors: Kevin J. Fontenot, F. Joseph Schork, Jay L. Reimers
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Patent number: 5654370Abstract: 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: GrantFiled: August 8, 1996Date of Patent: August 5, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Sudhin Datta, Periagaram S. Ravishankar, Lawrence George Kaufman
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Patent number: 5652292Abstract: 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: GrantFiled: June 22, 1995Date of Patent: July 29, 1997Assignee: The Dow Chemical CompanyInventor: Frederick W. Stanley, Jr., deceased
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Patent number: 5614577Abstract: 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: GrantFiled: April 11, 1994Date of Patent: March 25, 1997Assignee: Avery Dennison CorporationInventors: Yukihiko Sasaki, Kevin Lossner
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Patent number: 5612406Abstract: 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: GrantFiled: April 3, 1996Date of Patent: March 18, 1997Assignee: Dainippon Ink & Chemicals Inc.Inventors: Rainer B. Frings, Shigeru Komazaki, Gerwald F. Grahe
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Patent number: 5604290Abstract: 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: GrantFiled: April 14, 1995Date of Patent: February 18, 1997Assignee: Tajima IncorporatedInventors: Satoru Aikawa, Eiichi Tajima
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Patent number: 5589533Abstract: 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: GrantFiled: December 26, 1995Date of Patent: December 31, 1996Assignee: Tajima IncorporatedInventor: Satoru Aikawa
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Patent number: 5587404Abstract: 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: GrantFiled: April 18, 1995Date of Patent: December 24, 1996Assignee: Basf AktiengesellschaftInventors: Hubertus Kroner, Ekkehard Jahns, Manfred Mielke
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Patent number: 5578673Abstract: 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: GrantFiled: June 5, 1995Date of Patent: November 26, 1996Assignee: Imperial Chemical Industries PLCInventors: David P. Ashton, Geraldine A. Moorman, Roger N. Rothon
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Patent number: 5571868Abstract: 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: GrantFiled: June 15, 1995Date of Patent: November 5, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Sudhin Datta, Periagaram S. Ravishankar, Lawrence G. Kaufman
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Patent number: 5571582Abstract: 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: GrantFiled: January 6, 1995Date of Patent: November 5, 1996Assignee: Mitsubishi Chemical CorporationInventor: Masahiko Katoh
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Patent number: 5548018Abstract: 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: GrantFiled: May 19, 1995Date of Patent: August 20, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventor: Masao Maekawa
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Patent number: 5534561Abstract: 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: GrantFiled: July 18, 1994Date of Patent: July 9, 1996Inventor: Robert W. Volke