From Reactant Containing Two Or More Ethylenic Unsaturated Groups Patents (Class 521/150)
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Patent number: 4808635Abstract: Disclosed is a method of making a cross-linked poly(dicyclopentadiene) with a metathesis-catalyst system, where the metathesis-catalyst system contains an organoaluminum or organoaluminum halide activator and a pentavalent tantalum catalyst. In a preferred embodiment, the cross-linked polymer is formed by combining, in a first place, a plurality of reactant streams, one reactant stream which contains the activator, a second reactant stream which contains the catalyst and at least one reactant stream which contains dicyclopentadiene; then injecting the combined reactant streams into a second place, such as a mold, where polymerization occurs. Use of the pentavalent tantalum catalyst results in the formation of a cross-linked polymer having less color and greater transparency than cross-linked poly(dicyclopentadiene) made without a pentavalent tantalum catalyst.Type: GrantFiled: June 10, 1987Date of Patent: February 28, 1989Assignee: Hercules IncorporatedInventor: Tuyen T. Nguyen
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Patent number: 4797428Abstract: Rigid flame resistant polyurethane foams are made by reacting an aromatic polyisocyanate with a mixture of 25-75% oligoester and another isocyanate-reactive material in the presence of a blowing agent at an NCO index of less than 300. These foams which have an ASTM E-84 Class 1 rating are particularly useful in construction applications.Type: GrantFiled: June 22, 1987Date of Patent: January 10, 1989Assignee: Mobay CorporationInventor: Wolfgang W. Reichmann
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Patent number: 4788225Abstract: This invention discloses a novel elastic cross-linked porous polymer having a porosity in the range 75 to 98% internal phase volume and having interconnected pores, said pores having a mean pore diameter in the range 15 .mu.m to 80 .mu.m, said polymer having an elastic return from 50% compression to 90% of initial thickness of less than 120 seconds, and a process for its production.Type: GrantFiled: March 4, 1987Date of Patent: November 29, 1988Assignee: Lever Brothers CompanyInventors: Christopher John C. Edwards, Donald P. Gregory, Martin Sharples
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Patent number: 4781838Abstract: This support is constituted by a crosslinked polyvinyl alcohol hydrogel, whereof at least part of the --OH groups have been replaced by --OSO.sub.3 H groups. The crosslinked polyvinyl alcohol hydrogel comprises 70 to 95% by weight of chains derived from polyvinyl alcohol and 5 to 30% by weight of chains derived from crosslinking monomers, such as triethylene glycol diacrylate and tetraethylene glycol triacrylate.These supports can be used for the ex-vivo purification of the blood plasma in pocket 31 or 33.Type: GrantFiled: August 18, 1986Date of Patent: November 1, 1988Assignee: Commissariat a l'Energie AtomiqueInventors: Genevieve Crassous, Gilbert Gaussens, Dominique Duval, Maryvonne Nicaise, Gerard Vergne, Sylvaine Hours
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Patent number: 4764542Abstract: An in situ foamable semi-organic composition, a half ester compound useful in such a composition and a foam prepared by reacting such an adduct are disclosed. A half ester adduct is prepared by reacting an anhydride and an unsaturated conjugated vinyl hydroxy compound and generally has the structureCH.sub.2 .dbd.CR--COO--R'--O--CO--Z--COOHwhere,R=H, CH.sub.3, CN, C.sub.6 H.sub.11 (CYCLOHEXYL),X (X=F, Cl, Br)R'=--CH.sub.2 --CH.sub.2 --, --CXR--CXR--, --(CH.sub.2 --CH.sub.2 --).sub.n where n=1,2, . . . 8, andZ=--CH.dbd.CH--, phthalic, trimellitic, .alpha.-naphthoic, .beta.-naphthoic, substituted phthalic anhydrides of the structure ##STR1## wherein R"=Cl, F, Br, I, CH.sub.3, CN, CH.sub.3, C.sub.n H.sub.2n+2. The foamable semi-organic composition, in addition to the half ester adduct, includes a fluorocarbon blowing agent and an initiator.Type: GrantFiled: October 26, 1987Date of Patent: August 16, 1988Assignee: Whirlpool CorporationInventor: Thomas J. Miranda
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Patent number: 4708970Abstract: An in situ foamable semi-organic composition, a half ester compound useful in such a composition and a foam prepared by reacting such an adduct are disclosed. A half ester adduct is prepared by reacting an anhydride and an unsaturated conjugated vinyl hydroxy compound and generally has the structureCH.sub.2 .dbd.CR--COO--R'--O--CO--Z--COOHwhere,R=H, CH.sub.3, CN, C.sub.6 H.sub.11 (CYCLOHEXYL), X (X=F, Cl, Br)R'=--CH.sub.2 --CH.sub.2 --, --CXR--CXR--, --(CH.sub.2 --CH.sub.2 --).sub.n where n=1,2, . . . 8, andZ=--CH.dbd.CH--, phthalic, trimellitic, .alpha.-naphthoic, .beta.-naphthoic, substituted phthalic anydrides of the structure ##STR1## wherein R"=Cl, F, Br, I, CH.sub.3, CN, CH.sub.3, C.sub.n H.sub.2n+2. The foamable semi-organic composition, in addition to the half ester adduct, includes a fluorocarbon blowing agent and an initiator.Type: GrantFiled: December 31, 1986Date of Patent: November 24, 1987Assignee: Whirlpool CorporationInventor: Thomas J. Miranda
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Patent number: 4703068Abstract: Disclosed is a method of making a cross-linked poly(dicyclopentadiene) with a metathesis-catalyst system, where the metathesis-catalyst system contains an organoaluminum or organoaluminum halide activator and a pentavalent tantalum catalyst. In a preferred embodiment, the cross-linked polymer is formed by combining, in a first place, a plurality of reactant streams, one reactant stream which contains the activator, a second reactant stream which contains the catalyst and at least one reactant stream which contains dicyclopentadiene; then injecting the combined reactant streams into a second place, such as a mold, where polymerization occurs. Use of the pentavalent tantalum catalyst results in the formation of a cross-linked polymer having less color and greater transparency than cross-linked poly(dicyclopentadiene) made without a pentavalent tantalum catalyst.Type: GrantFiled: April 15, 1985Date of Patent: October 27, 1987Assignee: Hercules IncorporatedInventor: Tuyen T. Nguyen
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Patent number: 4686243Abstract: A porous, bead-like copolymer which can be employed to excellent effect for the fixation of enzymes is obtained by suspension polymerization of monomeric oxiranylalkyl compounds and/or 2-aziridinylalkyl compounds, n-valent crosslinking agents, N-vinylamides, heterocyclic 5-membered ring compounds or 6-membered ring compounds, having a polymerizable olefinic group in each case, and polymerizable quaternary ammonium salts.Type: GrantFiled: October 16, 1986Date of Patent: August 11, 1987Assignee: Hoechst AktiengesellschaftInventors: Karl-Heinz Keil, Dieter Wullbrandt, Reinhold Keller, Friedrich Engelhardt
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Patent number: 4683248Abstract: Optionally nucleo-substituted styrene polymers are crosslinked at temperatures above 110.degree. C. with combinations of crosslinkage promoters containing at least two polymerizable C--C double or C--C triple bonds in the molecule, and organic peroxides (with the exception of hydroperoxides, peracids, and ketone peroxides) having a 10 hour halflife temperature below 106.degree. C.Type: GrantFiled: October 2, 1985Date of Patent: July 28, 1987Assignee: Luperox GmbHInventors: Kurt Rauer, Angelika Orner
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Patent number: 4681901Abstract: The invention claimed here comprises a process for producing neoprene foam structures which are greater than four inches in diameter. The claimed invention also comprises a structure of neoprene with a thickness greater than about four inches composed of one continuous mass of adhesively bound neoprene particles.Type: GrantFiled: April 25, 1986Date of Patent: July 21, 1987Assignee: ModuForm, Inc.Inventors: F. Paul Gavin, David F. Brigham, Ann H. Gavin
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Patent number: 4680318Abstract: A foaming resin composition comprising an unsaturated random copolymer consisting of propylene, ethylene, and a branched 1,4-diene represented by the following formula: ##STR1## wherein R.sup.1 represents an alkyl group having not more than 8 carbon atoms; and R.sup.2 and R.sup.3 each represents a hydrogen atom or an alkyl group having not more than 8 carbon atoms, provided that R.sup.2 and R.sup.3 do not simultaneously represent a hydrogen atom, and a chemical foaming agent. The composition is prevented from increasing in temperature due to shearing during molding into a foamable sheet and, therefore, provides a uniform foamed product.Type: GrantFiled: November 7, 1986Date of Patent: July 14, 1987Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Masaki Fujii, Shiroh Gotoh, Hideaki Nakagawa, Ryoichi Ito
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Patent number: 4668709Abstract: This invention provides a highly porous crosslinked functionalised polymer having interconnected cavities of micron dimensions and having a pore volume greater than about 5.6 cc/g and having a capacity to absorb water and also to absorb saline solutions. The polymers are generally based on styrene or various acrylates or mixtures and have a functional group selected from a large range of ionic and polar compositions.Type: GrantFiled: June 26, 1986Date of Patent: May 26, 1987Assignee: Lever Brothers CompanyInventors: Keith Jones, Barry R. Lothian, Alexander Martin, Graham Taylor, Ziq Hao
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Patent number: 4657938Abstract: A sprayable and foamable insulating composition comprising: (A) at least one low molecular weight polymer selected from the group consisting of ethylene/alphaolefin copolymer, ethylene/alphaolefin/nonconjugated polyene terpolymer, polyacrylate, polymethacrylate, polyisoprene, polyacrylonitrile, polymethacrylonitrile and polybutadiene; (B) an effective amount of curative; and (C) an effective amount of a blowing agent having an activation temperature which is less than or about equal to the curing temperature of component (B), said composition having a Brookfield viscosity of about 100,000 centipoise or less at shear rates of 5 sec.sup.-1 or greater. A process for providing a layer of insulating foam employing such composition is also disclosed.Type: GrantFiled: August 26, 1985Date of Patent: April 14, 1987Assignee: Uniroyal Chemical Company, Inc.Inventors: Luke E. Fithian, Frank C. Cesare
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Patent number: 4656261Abstract: A lipoprotein adsorbent for use in extracorporeal circulation treatment which is made of a water-insoluble porous hard gel which has an exclusion limit value from 10.sup.6 to 10.sup.9 measured by using glubular proteins and comprises a polymer having hydroxy group in at least a part of the molecule, at least a part of hydroxy groups on the surface of said gel being converted to sulfates. By using the adsorbent of the present invention, LDL and VLDL can be selectively and effectively removed from the body fluids of the patient. Further, the adsorbent of the present invention can be prepared in a lower cost than the adsorbent based on the principle of the affinity chromatography, in which a relatively expensive ligand is employed.Type: GrantFiled: October 21, 1985Date of Patent: April 7, 1987Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shigeo Furuyoshi, Nobutaka Tani
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Patent number: 4654420Abstract: A lipoprotein adsorbent for use in extracorporeal circulation treatment which is made of a water-insoluble porous hard gel which has an exclusion limit value from 10.sup.6 to 10.sup.9 measured by using glubular proteins and comprises a polymer having hydroxy group in at least a part of the molecule, at least a part of hydroxy groups on the surface of said gel being converted to sulfates. By using the adsorbent of the present invention, LDL and VLDL can be selectively and effectively removed from the body fluids of the patient. Further, the adsorbent of the present invention can be prepared in a lower cost than the adsorbent based on the principle of the affinity chromatography, in which a relatively expensive ligand is employed.Type: GrantFiled: June 23, 1986Date of Patent: March 31, 1987Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shigeo Furuyoshi, Nobutaka Tani
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Patent number: 4647594Abstract: The properties of polymer mixtures which comprise a polyphenylene ether and a polyvinyl aromatic compound can be improved by the simultaneous addition of an organic metal sulphonate compound and a block copolymer. In particular a combination of a good impact strength and a good resistance against agressive media under mechanical stresses (environmental stress) cracking resistance "ESCR") is obtained. This also applies to polymer mixtures having a high content of titanium dioxide.Type: GrantFiled: October 10, 1985Date of Patent: March 3, 1987Assignee: General Electric CompanyInventors: Johannes W. J. de Munck, Johannes H. G. M. Lohmeijer
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Patent number: 4612334Abstract: This invention provides a highly porous crosslinked functionalized polymer having interconnected cavities of micron dimensions and having a pore volume greater than about 5.6 cc/g and having a capacity to absorb water and also to absorb saline solutions. The polymers are generally based on styrene or various acrylates or mixtures and have a functional group selected from a large range of ionic and polar compositions.Type: GrantFiled: March 1, 1985Date of Patent: September 16, 1986Assignee: Lever Brothers CompanyInventors: Keith Jones, Barry R. Lothian, Alexander Martin, Graham Taylor, Zia Haq
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Patent number: 4611014Abstract: This invention discloses highly porous crosslinked functionalized polymers having interconnected cavities and a pore volume greater than 5.6 cc/g in the swollen state and having a capacity to absorb aqueous or organic acidic liquids from its dried state of at least 3 g liquid per gram of polymer. The polymers are generally based on styrene and/or methacrylate compositions and contain various ionic or polar functional groups.Type: GrantFiled: March 1, 1985Date of Patent: September 9, 1986Assignee: Lever Brothers CompanyInventors: Keith Jomes, Barry R. Lothian, Alexander Martin, Graham Taylor, Zia Haq
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Patent number: 4607060Abstract: Crosslinked elastomeric and/or thermoplastic closed-cell foams having low densities are prepared from an admixture which comprises a crosslinkable thermoplastic and/or elastomeric polymer, a free radical initiator which is activated at temperatures from about 50.degree. C. to about 350.degree. C., and a t-alkylhydrazinium salt or a carbonylhydrazine.Type: GrantFiled: September 30, 1985Date of Patent: August 19, 1986Assignee: Pennwalt CorporationInventors: Chester J. Kmiec, Michael F. Novits, Edward P. Hibbard
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Patent number: 4604408Abstract: A composition for making a cellular thermoset polymer comprised of polymerized units of dicyclopentadiene monomer. The composition includes dicyclopentadiene, a catalyst, and a blowing agent.Type: GrantFiled: June 17, 1985Date of Patent: August 5, 1986Assignee: Hercules IncorporatedInventor: Norman R. Newburg, deceased
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Patent number: 4604321Abstract: An adsorbing agent and a method of preparation thereof is disclosed, which agent is capable of selectively adsorbing mercury from various mercury-containing gaseous or aqueous media at high rate of efficiency. The agent essentially comprises a porous material having a specific surface area in excess of 10 m.sup.2 /g. and a conjugated diolefin lower polymer deposited in a predetermined amount on the porous material.Type: GrantFiled: September 27, 1984Date of Patent: August 5, 1986Assignee: Nippon Petrochemicals Co., Ltd.Inventors: Mitsuo Okahara, Isao Ikeda
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Patent number: 4598102Abstract: A composition and method for polymerization of cycloolefins using a feed stream including dialkylaluminum iodide and the cross-linked polymer produced. The polymer product may be formed by polymerization in an intricately shaped mold and/or be of ultra-low density. A trialkylaluminum compound or a dialkylaluminum chloride are preferably included with dialkylaluminum iodide.Type: GrantFiled: November 16, 1984Date of Patent: July 1, 1986Assignee: Hercules IncorporatedInventor: Douglas R. Leach
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Patent number: 4588754Abstract: Foamable low-modulus thermoplastic compositions are prepared by incorporating suitable chemical blowing agents in low-modulus polymers. Specifically, low-modulus copolyetherester compositions may be foamed by use of citric acid, sodium bicarbonate or mixtures thereof as blowing agents.Type: GrantFiled: October 3, 1985Date of Patent: May 13, 1986Assignee: General Electric CompanyInventor: Nan-I Liu
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Patent number: 4588752Abstract: Closed-cell crosslinked sponges of varying densities are prepared from an admixture of a vulcanizable elastomer, vulcanizing ingredients selected from sulfur or sulfur donor compounds together with metal oxides and/or sulfur vulcanization accelerators and a t-alkylhydrazinium salt and/or carbonylhydrazine. The crosslinked sponges have uniform cellular structures and are easily prepared with the desired density.Type: GrantFiled: September 30, 1985Date of Patent: May 13, 1986Assignee: Pennwalt CorporationInventors: Chester J. Kmiec, Michael F. Novits
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Patent number: 4552905Abstract: The crosslinked copolymer containing 75 to 99.9% by weight of recurring units of a pyridyl, quinolyl, isoquinolyl or pyrazinyl compound containing a polymerizable olefinic group, 0.1 to 25% by weight of units of a crosslinking agent and 0 to 25% by a weight of units of a polymerizable organosilicon and/or organoboron compound and, based on 100% by weight of the sum of the abovementioned units, 5 to 350% by weight of units of an N-vinyl-amide, is prepared by bead polymerization and used as a sorbent for acid substances from their aqueous solutions.Type: GrantFiled: June 22, 1984Date of Patent: November 12, 1985Assignee: Cassella AktiengesellschaftInventors: Karl-Heinz Keil, Ulrich Greiner, Fritz Engelhardt, Klaus Kuhlein, Reinhold Keller, Merten Schlingmann
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Patent number: 4551482Abstract: A macroporous, hydrophilic enzyme carrier comprises a sulfonated polymer, charged with polyethyleneimine, of from 10 to 100% by weight of divinylbenzene, from 0 to 90% by weight of styrene and from 0 to 20% by weight of a copolymerizable monomer, the polyethyleneimine being neither crosslinked nor covalently bonded to the polymer.Type: GrantFiled: June 23, 1983Date of Patent: November 5, 1985Assignee: BASF AktiengesellschaftInventors: Chung-Ji Tschang, Stefan Marcinowski
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Patent number: 4535097Abstract: Disclosed is a cellular thermoset poly(dicyclopentadiene) having a density of from about 0.2 to about 0.85 g/ml.Type: GrantFiled: August 26, 1983Date of Patent: August 13, 1985Assignee: Hercules IncorporatedInventor: Norman R. Newburg, deceased
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Patent number: 4522953Abstract: Cross-linked homogenous porous polymeric materials are prepared by polymerization of monomers as the continuous phase in a high internal phase emulsion having above a critical limit of surfactant to ensure adequate absorbtivity. The porous materials may be dried and refilled with selected liquids and act as a high capacity reservoir.Type: GrantFiled: September 24, 1984Date of Patent: June 11, 1985Assignee: Lever Brothers CompanyInventors: Donald Barby, Zia Haq
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Patent number: 4520137Abstract: A one-part activator and blowing agent system for foaming plastics comprising an alkali metal borohydride and a salt hydrate blended in a single pellet or as separate pellets with a dry inert resinous polymer carrier. The one-part system is blended with a resinous polymer and then the blend extruded at a temperature at which the blend becomes molten such that the salt hydrate releases its water of hydration to hydrolyze the borohydride and produce a cellular article.Type: GrantFiled: October 18, 1984Date of Patent: May 28, 1985Assignee: Morton Thiokol Inc.Inventors: Roger G. Hamel, Susan B. Poulin
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Patent number: 4508669Abstract: In a process for producing a thermoplastic resin foam which comprises continuously heat-foaming a foamable thermoplastic resin sheet containing a heat-decomposable organic blowing agent with a heated gas, the improvement wherein a gas containing sublimation products generated by the heat-foaming of the foamable sheet is burned to decompose the sublimation products and obtain a treated gas having a substantially reduced content of the sublimation products, and the treated gas is then used as the heated gas for the heat-foaming of the foamable sheet; and a apparatus for producing a thermoplastic resin foam by continuously heat-foaming a foamable thermoplastic resin sheet, said apparatus comprising a heat-foaming chamber having an inlet portion for feeding the foamable thermoplastic resin sheet, an outlet portion for discharging the foamed sheet, a discharge port for a gas containing sublimation products generated by the heat-foaming of said foamable sheet, and a supply port for a heated gas, said discharge portType: GrantFiled: April 25, 1984Date of Patent: April 2, 1985Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Noboru Iwai, Masanori Hirunuma, Junichi Kaneko
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Patent number: 4496668Abstract: A cellular thermoset polymer comprised of polymerized units of dicyclopentadiene monomer, wherein the cells of said cellular polymer are small and uniform.Type: GrantFiled: May 14, 1984Date of Patent: January 29, 1985Assignee: Hercules CorporatedInventor: Norman R. Newburg, deceased
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Patent number: 4496669Abstract: Disclosed is an improved method of making a cellular crosslinked polymer with a metathesis-catalyst system where a metathesis-catalyst is activated with an alkylaluminum iodide compound.In a preferred embodiment, two parts of the metathesis-catalyst system form the basis for two solutions, a catalyst/monomer solution and an alkylaluminum iodide activator/monomer solution. At least one solution also contains a blowing agent. The solutions are combined in one place, such as the mixing head of a reaction injection molding machine, and then injected into another place, such as a mold, where the monomer reacts to form a cellular crosslinked polymer.Type: GrantFiled: June 21, 1984Date of Patent: January 29, 1985Assignee: Hercules IncorporatedInventor: Douglas R. Leach
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Patent number: 4491554Abstract: A one-part activator and blowing agent system for foaming plastics comprising an alkali metal borohydride and a salt hydrate blended in a single pellet or as separate pellets with a dry inert resinous polymer carrier. The one-part system is blended with a resinous polymer and then the blend extruded at a temperature at which the blend becomes molten such that the salt hydrate releases its water of hydration to hydrolyze the borohydride and produce a cellular article.Type: GrantFiled: September 27, 1983Date of Patent: January 1, 1985Assignee: Thiokol CorporationInventors: Roger G. Hamel, Susan B. Poulin
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Patent number: 4458037Abstract: Disclosed is an improved method of making a cellular crosslinked polymer with a metathesis-catalyst system where a metathesis-catalyst is activated with an alkylaluminum iodide compound.In a preferred embodiment, two parts of the metathesis-catalyst system form the basis for two solutions, a catalyst/monomer solution and an alkylaluminum iodide activator/monomer solution. At least one solution also contains a blowing agent. The solutions are combined in one place, such as the mixing head of a reaction injection molding machine, and then injected into another place, such as a mold, where the monomer reacts to form a cellular crosslinked polymer.Type: GrantFiled: November 17, 1983Date of Patent: July 3, 1984Assignee: Hercules IncorporatedInventor: Douglas R. Leach
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Patent number: 4337321Abstract: A method for foaming heat foamable thermoplastic resin preforms and the product produced thereby. Said preforms are foamed in a series of foaming stages, said series comprising at least one stress-relieving foaming stage and at least one additional foaming stage subsequent thereto and at a higher temperature. This method facilitates the production of foam sheets, slabs and planks of better quality than that provided by previously known single stage foaming methods. In an example, a crosslinked, expandable, polyethylene preform is foamed by such a method using two foaming stages.Type: GrantFiled: December 2, 1980Date of Patent: June 29, 1982Assignee: The Dow Chemical CompanyInventor: Sambasiva R. Allada
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Patent number: 4318875Abstract: A cross-linked, cellular elastomeric composition is made from a formulation which includes one or more natural and/or synthetic rubbers, a cross-linking agent, a monomeric metallic salt of an ethylenically-unsaturated carboxylic acid and a blowing agent. The metallic salt is preferably basic zinc methacrylate. The composition may be used to provide a core for a tennis-ball or a sponge for a table-tennis bat. The former use enables advantage to be taken of the properties hitherto only found in pressurized playballs, while the latter use leads to a marked increase in the speed of the ball when struck by the bat.Type: GrantFiled: November 26, 1980Date of Patent: March 9, 1982Assignee: Dunlop LimitedInventors: Ronald H. Shrimpton, Peter L. Cooney
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Patent number: 4315075Abstract: A low smoke neoprene latex foam having physical properties suitable for cushioning and method of making the same are provided in which at least 200 parts of hydrated alumina are added per 100 parts of dry neoprene latex with the hydrated alumina being at least 66% in the size range 40 microns and larger and the balance in the size range below 40 microns.Type: GrantFiled: October 15, 1980Date of Patent: February 9, 1982Assignee: Toyad CorporationInventor: Esther C. Gardner
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Patent number: 4308302Abstract: A flange mountable weatherstrip includes a coated flange cover and a hollow sealing member. The coating and the sealing member are preferably formed in a single extrusion operation of a single low durometer elastomeric sponge material. The preferred physical properties of the elastomeric material and its formulation are described. The flange cover is adaptable to frictionally engage a supporting edge flange. The sealing member is of an asymmetric cross-sectional configuration resembling an upper case letter D.Type: GrantFiled: February 27, 1981Date of Patent: December 29, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Gordon E. Etter, William Hoverman, Jr.
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Patent number: 4281233Abstract: The invention pertains to hydrophilic macroporous three dimensional copolymers of hydroxyalkyl methacrylates or hydroxyalkyl acrylates (C.sub.1 -C.sub.4 hydroxyalkyl) with crosslinking monomers which contain covalently attached saccharides via an O-glycosidic bond. The invention further pertains to the method of manufacturing of these copolymers by the direct reaction of the basic three dimensional copolymer containing hydroxyl groups with saccharides or their derivatives in an inert organic solvent under catalysis of HCl, BF.sub.3, or their mixtures at 20.degree.-100.degree. C. Saccharides and their derivatives are selected from the group comprising monosaccharides, oligosaccharides, deoxy sugars, amino saccharides, acylated saccharides, ether or halogen derivatives of monosaccharides and oligosaccharides, and the like.Type: GrantFiled: July 21, 1980Date of Patent: July 28, 1981Assignee: Ceskoslovenska akademie vedInventors: Jiri Coupek, Karel Filka, Jan Kocourek
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Patent number: 4274637Abstract: The subject invention relates to a golf ball having a cover which is completely or partially formed from a cellular polymeric material. By incorporating the subject invention into a golf ball structure, it is possible to selectively alter its "feel" characteristics, the physical properties and flight characteristics. The subject invention can be utilized with golf balls having either solid or wound cores. The subject golf ball cover can be formed from a plurality of natural and synthetic polymeric materials. It is preferred that the golf ball cover be formed from ionic copolymers of polyolefins and unsaturated monocarboxylic acids wherein said ionomers incorporate zinc or sodium ions. Mixtures of said ionic copolymers may likewise be utilized.Type: GrantFiled: June 2, 1980Date of Patent: June 23, 1981Assignee: Questor CorporationInventor: Robert P. Molitor
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Patent number: 4266030Abstract: A macroporous crosslinked styrene resin, used as a carrier for covalently binding proteins, which resin contains isocyanate, thioisocyanate or aldehyde groups as protein-binding groups and may or may not contain sulfonic acid groups--which may also be in the form of the sodium salt or of sulfonic acid amide groups--as hydrophilic groups.The carrier according to the invention is prepared from a sulfochlorinated macroporous crosslinked styrene resin by reacting the sulfonic acid chloride groups with an .alpha.,.omega.-diamino compound, with hydrazine or with an .alpha., .omega.-diamino-diether, converting any sulfonic acid chloride groups which may still be present to free sulfonic acid groups, their sodium salt or a sulfonamide group, and then reacting the terminal amino groups with phosgene, thiophosgene or a diisocyanate in order to produce the binding groups, which in turn fix a biologically active protein by covalent bonds.Type: GrantFiled: May 5, 1980Date of Patent: May 5, 1981Assignee: BASF AktiengesellschaftInventors: Chung-Ji Tschang, Heinrich Klefenz, Axel Sanner
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Patent number: 4263165Abstract: A blowing agent combination comprising azodicarbonamide, zinc oxide and a benzenethiol sulphonic acid derivative having the general formula (I) ##STR1## wherein R is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl radical and/or a chlorine atom,X is a number from 1 to 5, andR' is a C.sub.1 -C.sub.4 alkyl radical, a C.sub.5 -C.sub.6 cycloalkyl radical or a C.sub.7 -C.sub.8 arylalkyl radical each of these radicals being optionally substituted by from 1 to 3 C.sub.1 -C.sub.4 alkyl radicals, from 1 to 5 chlorine atoms and/or a carboxylic acid C.sub.1 -C.sub.4 alkyl ester radical, or a radical having one of the general formulae (11a), (11b), (11c) or (11d). ##STR2## in which y is a number from 0 to 3,R" is a C.sub.1 -C.sub.6 alkylene radical or a xylylene radical which is optionally substituted by from 1 to 4 methyl radicals and/or from 1-4 chlorine atoms and R and X are as defined above;may be used as blowing agents.Type: GrantFiled: May 7, 1980Date of Patent: April 21, 1981Assignee: Bayer AktiengesellschaftInventors: Ernst Roos, Werner Jeblick, Helmut Hurnik
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Patent number: 4256842Abstract: A hydrophilic separating carrier is a porous spherical gel having primary hydroxyl groups and is produced by an aqueous suspension homopolymerization of pentaerythritol dimethacrylate or an aqueous suspension copolymerization of pentaerythritol dimethacrylate and a methacrylate monomer having hydrophilic group and/or hydrophilic convertible group.Type: GrantFiled: March 7, 1980Date of Patent: March 17, 1981Assignee: Toyo Soda Manufacturing Company, LimitedInventors: Hiroo Sasaki, Katsuo Komiya, Yoshio Kato
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Patent number: 4256843Abstract: A hydrophilic separating carrier is a porous spherical gel having primary hydroxyl groups and is produced by an aqueous suspension homopolymerization of pentaerythritol dimethacrylate or an aqueous suspension copolymerization of pentaerythritol dimethacrylate and a methacrylate monomer having hydrophilic group and/or hydrophilic convertible group.Type: GrantFiled: March 7, 1980Date of Patent: March 17, 1981Assignee: Toyo Soda Manufacturing Company, LimitedInventors: Hiroo Sasaki, Katsuo Komiya, Yoshio Kato
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Patent number: 4252909Abstract: A free expandable rubbery composition comprising an ethylene/.alpha.-olefin copolymer or terpolymer, a blowing agent and a crosslinking agent, said ethylene/.alpha.-olefin co- or terpolymer simultaneously meeting the following requirements (A), (B) and (C):(A) it contains 55 to 73 mole % of an ethylene unit,(B) it has an (EB.times.TS) value of at least 7,000 wherein EB represents the break elongation (%) of the co- or terpolymer and TS is the maximum tensile strength (kg/cm.sup.2) of the co- or terpolymer, and(C) it has a Mooney viscosity, ML.sub.1+4 at 121.degree. C., of 65 to 120.This composition can be used for the production of a crosslinked and foamed rubbery article by the free expansion method.Type: GrantFiled: March 6, 1979Date of Patent: February 24, 1981Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Kiyoshi Honma, Hidekuni Oda
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Patent number: 4251634Abstract: The invention pertains to hydrophilic macroporous threedimensional copolymers of hydroxyalkyl methacrylates or hydroxyalkyl acrylates (C.sub.1 -C.sub.4 hydroxyalkyl) with crosslinking monomers which contain covalently attached saccharides via an O-glycosidic bond. The invention further pertains to the method of manufacturing of these copolymers by the direct reaction of the basic three dimensional copolymer containing hydroxyl groups with saccharides or their derivatives in an inert organic solvent under catalysis of HCl, BF.sub.3, or their mixtures at 20.degree.-100.degree. C. Saccharides and their derivatives are selected from the group comprising monosaccharides, oligosaccharides, deoxy sugars, amino saccharides, acylated saccharides, ether or halogen derivatives of monosaccharides and oligosaccharides, and the like.Type: GrantFiled: April 28, 1978Date of Patent: February 17, 1981Assignee: Ceskoslovenska akademie vedInventors: Jiri Coupek, Karel Filka, Jan Kocourek
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Patent number: 4247412Abstract: A blowing composition comprising azodicarbonamide, a zinc peroxide and a decomposition inhibitor for azodicarbonamide.Type: GrantFiled: April 17, 1979Date of Patent: January 27, 1981Assignee: Otsuka Kagaku Yakuhin Kabushiki KaishaInventors: Shigeaki Ohno, Nobuyuki Aburatani, Nobuyuki Ueda
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Patent number: 4246362Abstract: A hydrophilic separating carrier is a porous spherical gel having primary hydroxyl groups and is produced by an aqueous suspension homopolymerization of pentaerythritol dimethacrylate or an aqueous suspension copolymerization of pentaerythritol dimethacrylate and a methacrylate monomer having hydrophilic group and/or hydrophilic convertible group.Type: GrantFiled: June 5, 1979Date of Patent: January 20, 1981Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Hiroo Sasaki, Katsuo Komiya, Yoshio Kato
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Patent number: 4246351Abstract: A novel protein adsorbent consisting essentially of a porous copolymer obtained by copolymerizing a monomer mixture comprising at least one cyano group-containing monomer and at least one cross-linkable monomer, said copolymer having an average pore diameter (d) of from 40 A to 9,000 A and a total pore volume of from 0.05.sqroot.X ml to 1.5.sqroot.X ml per gram of the copolymer in a dry state, in which X designates the weight proportion of said cross-linkable monomer expressed in terms of the percent by weight based on the total monomers. The present porous copolymer adsorbent has a remarkably high protein adsorbing capacity. The adorbent can advantageously be used for various purposes such as purification and separation of proteins, and removal of proteins. Copolymer-protein composites obtained by adsorption of proteins on the present porous copolymer also are industrially useful and have a wide variety of applications.Type: GrantFiled: October 29, 1979Date of Patent: January 20, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tetsuya Miyake, Kunihiko Takeda, Akihiko Ikeda, Masayuki Mizuno
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Patent number: 4235973Abstract: A macroporous crosslinked sytrene resin, used as a carrier for covalently binding proteins, which resin contains isocyanate, thioisocyanate or aldehyde groups as protein-binding groups and may or may not contain sulfonic acid groups--which may also be in the form of the sodium salt or of sulfonic acid amide groups--as hydrophilic groups.The carrier according to the invention is prepared from a sulfochlorinated macroporous crosslinked styrene resin by reacting the sulfonic acid chloride groups with an .alpha.,.omega.-diamino compound, with hydrazine or with an .alpha.,.omega.-diaminodiether, converting any sulfonic acid chloride groups which may still be present to free sulfonic acid groups, their sodium salt or a sulfonamide group, and then reacting the terminal amino groups with phosgene, thiophosgene or a diisocyanate in order to produce the binding groups, which in turn fix a biologically active protein by covalent bonds.Type: GrantFiled: July 12, 1979Date of Patent: November 25, 1980Assignee: BASF AktiengesellschaftInventors: Chung-Ji Tschang, Heinrich Klefenz, Axel Sanner