Aromatic Hydrocarbon Patents (Class 524/484)
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Patent number: 5164441Abstract: Acrylic copolymer PSA compositions having enhanced peel strength without substantially decreasing shear properties have been formulated by homogeneously incorporating the tackifying resin into the polymer matrix. The tackifying resin is dissolved into a solution of alkyl (meth) acrylate and (meth) acrylic acid monomers prior to polymerization. To enhance the molecular weight of the resultant PSA, the monomer/tackifier solution is emulsion polymerized in the absence of chain transfer agents, such as antioxidant additives typically found in commercially available tackifiers, and allylic hydrogen present in many unsuitable tackifiers.Type: GrantFiled: December 20, 1990Date of Patent: November 17, 1992Assignee: Exxon Chemical Patents Inc.Inventor: Henry W. Yang
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Patent number: 5145897Abstract: The invention relates to a polynorbornene-based rubbery composition with improved thermal behaviour, comprising a mixture of at least 50% by weight of polynorbornene and not more than 50% by weight of another rubber, the said mixture having been vulcanized by means of effective quantity of at least one compound: ##STR1## where R.sub.1, R.sub.2 =CH.sub.n X.sub.3-n, with X=F, Cl or Br and n = integer from 0 to 2; the invention also relates to a thermoplastic composition comprising 10-90 parts by weight (pw) of at least one olefin-based crystalline polymer (A), from 90-10 pw of a mixture (B) of at least 50% by weight of polynorbornene and not more than 50% by weight of another rubber, and a sufficient quantity of plasticiser for polynorbornene to lower its glass transition temperature to the range of rubbers, the sum of (A) and of (B) being equal to 100 pw and (B) being vulcanized by means of an effective quantity of at least one compound (I).Type: GrantFiled: May 1, 1991Date of Patent: September 8, 1992Assignee: AtochemInventors: Gabriel Levif, Frederic Coupe
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Patent number: 5143594Abstract: An asphalt or asphaltene refinery anti-foulant technique comprising the use in crude oil, or crude oil fraction, streams of alkyl-substituted phenol formaldehyde liquid resins in combination with hydrophilic-lipophilic vinylic polymers. The polymeric anti-foulant is added to asphalt or asphaltene containing crude oil streams to prevent fouling of metallic, or other, i.e. ceramic, surfaces, especially heat transfer surfaces.Type: GrantFiled: November 12, 1991Date of Patent: September 1, 1992Assignee: Nalco Chemical CompanyInventors: William K. Stephenson, Bradley D. Mercer, David G. Comer
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Patent number: 5135978Abstract: 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: August 9, 1990Date of Patent: August 4, 1992Assignee: Avery Dennison CorporationInventor: Yukihiko Sasaki
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Patent number: 5132348Abstract: A tread rubber composition for high-speed running tires comprises a particular halogenated modified styrene-butadiene copolymer having p-halomethylbenzoyl group as a starting rubber and contains particular amounts of carbon black, process oil and diamine, and has excellent heat resistance and wear resistance.Type: GrantFiled: June 28, 1990Date of Patent: July 21, 1992Assignee: Bridgestone CorporationInventors: Tadashi Saito, Joji Yatsunami, Ichiro Wada, Toshiki Takizawa
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Patent number: 5116902Abstract: In ink-jet pens (10) for use with printers and plotters, an elastomeric, back-pressure bladder (12) is employed to ensure a supply of ink (14) to the printhead (16) under substantially constant pressure. Contamination of ink due to solubilization of components in the bladder by the aqueous-based ink is avoided by employing an elastomer composition essentially of a high cross-link density ethylene propylene diene monomer, carbon black as reinforcement, dicumyl peroxide on Kaolin clay as curative, and fully hydrogenated clay filtered mineral oil as plasticizer. Such elastomers are given by the composition range (in parts per hundred):______________________________________ EPDM resin 100 Carbon black 18 to 30 Curative 7.0 to 7.5 Plasticizer 20 to 25.Type: GrantFiled: January 30, 1990Date of Patent: May 26, 1992Assignees: Hewlett-Packard Company, Hiawatha Rubber Co.Inventors: Charles B. Chapman, Michael R. Williams
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Patent number: 5115008Abstract: 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: August 9, 1990Date of Patent: May 19, 1992Assignee: Avery Dennison CorporationInventor: Yukihiko Sasaki
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Patent number: 5112900Abstract: An elastomeric composition is formed of at least two, and preferably three, S-EB-S elastomeric triblock copolymers having different solution viscosity/copolymer concentration relationships, and a sufficient amount of a mineral oil plasticizer to achieve excellent tactility with acceptable strength. To prepare articles such as medical film protective devices, the elastomeric composition is dissolved in a sufficient amount of a solvent to permit dip forming. A form having the shape of the desired product is dipped into the solution to build up a film of the elastomeric composition on the form. The dip-formed elastomeric films are free of pinholes and resistant to oxidative and ozone attack. The films are particularly suitable for use in products such as examination, surgical, and industrial gloves and condoms.Type: GrantFiled: November 28, 1990Date of Patent: May 12, 1992Assignee: Tactyl Technologies, Inc.Inventors: Douglas A. Buddenhagen, Norman R. Legge, Gunter Zscheuschler
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Patent number: 5106902Abstract: Acrylic copolymer compositions which contain a tackifying hydrocarbon resin and a polyfunctional crosslinking monomer and the use of such composition in pressure-sensitive adhesives are described. The tackifying hydrocarbon resin is dissolved, as is the polyfunctional monomer, in a solution of alkyl(meth)acrylate and (meth)acrylic acid monomers and is present during the polymerization of the monomers to form a tackified acrylic copolymer.Acrylic copolymer compositions which contain a tackifying hydrocarbon resin and a polyfunctional crosslinking monomer and the use of such composition in pressure-sensitive adhesives are described. The tackifying hydrocarbon resin is dissolved, as is the polyfunctional monomer, in a solution of alkyl (meth)acrylate and (meth)acrylic acid monomers and is present during the polymerization of the monomers to form a tackified acrylic copolymer.Type: GrantFiled: March 15, 1991Date of Patent: April 21, 1992Assignee: Exxon Chemical Patents, Inc.Inventor: Henry W. Yang
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Patent number: 5104921Abstract: A cured composition possessing excellent cohesive strength at high temperatures along with excellent adhesion, shear strength and solvent resistance is prepared by the high energy ionizing radiation initiated curing of a polymer composition comprising an alkenyl arene/conjugated diene block copolymer and a oligomer such that the unsaturation index of the composition is minimized. The radiation initiated curing of the adhesive composition is accomplished without requiring the aid of a coupling agent to promote crosslinking of the block copolymer during exposure to the radiation.Type: GrantFiled: October 12, 1989Date of Patent: April 14, 1992Assignee: Shell Oil CompanyInventors: James R. Erickson, Earle E. Ewins, Jr.
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Patent number: 5100531Abstract: An asphalt or asphaltene refinery anti-foulant technique comprising the use in crude oil, or crude oil fraction, streams of alkyl-substituted phenol formaldehyde liquid resins in combination with hydrophilic-lipophilic vinylic polymers. The polymeric anti-foulant is added to asphalt or asphaltene containing crude oil streams to prevent fouling of metallic, or other, i.e. ceramic, surfaces, especially heat transfer surfaces.Type: GrantFiled: April 18, 1991Date of Patent: March 31, 1992Assignee: Nalco Chemical CompanyInventors: William K. Stephenson, Bradley D. Mercer, David G. Comer
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Patent number: 5095065Abstract: Acrylic copolymer PSA compositions having enhanced peel strength without substantially decreasing sheer properties have been formulated by homogeneously incorporating the tackifying resin into the polymer matrix. The tackifying resin is dissolved into a solution of alkyl (meth) acrylate and (meth) acrylic acid monomers prior to polymerization.Type: GrantFiled: May 21, 1990Date of Patent: March 10, 1992Assignee: Exxon Chemical Patents Inc.Inventor: Henry W. Yang
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Patent number: 5093406Abstract: There are provided a pressure-sensitive adhesive which are 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 thr properties of the cured elastomeric polymer which mixture prior to cure has a viscosity of less than about 30 Pascal-seconds at a hot melt application temperature less thant 175.degree. C.Type: GrantFiled: December 14, 1989Date of Patent: March 3, 1992Assignee: Avery Dennison CorporationInventors: Kevin S. Lossner, Yukihiko Sasaki
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Patent number: 5091448Abstract: A new stable liquid suspension of water soluble polymer, and a method of preparation are provided. Such compositions comprise of at least an iso-parrafinic oil medium, one styrene/isoprene copolymer, a water soluble polymer and preferably some hydrophobic fumed silica mixed together in the appropriate quantities and conditions.Type: GrantFiled: April 24, 1990Date of Patent: February 25, 1992Assignee: Phillips Petroleum CompanyInventors: John E. Hostettler, Marshall D. Bishop
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Patent number: 5087653Abstract: A resin composition for cleaning the inside of molding machines, capable of easily achieving the color exchange and resin exchange of thermoplastic resins in various molding machines, in a small quantity, by a simple operation and in a short time is provided, which resin composition is a cleaning resin composition having (a) 1-10 wt. % of a polystyrene resin, 1-20 wt. % of a neutral salt of an alkylbenzenesulfonic acid, 1-30 wt. % of an inorganic filler and 0.5-10 wt. % of a water-repellent compound blended with a high density polyethylene resin having a melt index of 1.0 or less and a Q value expressing a molecular weight distribution, of 10 or less.Type: GrantFiled: May 10, 1990Date of Patent: February 11, 1992Assignee: Chisso CorporationInventors: Kenjiro Obama, Hiroshi Takasu, Susumu Arase, Hiroyuki Fujii
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Patent number: 5073248Abstract: A method of dispersing asphalt/asphaltene comprising an admixture of polymer A and polymer B ranging from 90 to 10 weight percent A to from 10 to 90 weight percent B. Wherein polymer A is an alkyl substituted phenolformaldehyde liquid resin having a weight average molecular weight ranging from about 1000 to about 20,000 and an alkyl substituent containing from 4 to 24 carbon atoms, with alkyl substituent may be linear or branched alkyl group. Polymer B is a hydrophilic-lipophilic vinylic polymer.Type: GrantFiled: February 14, 1991Date of Patent: December 17, 1991Assignee: Nalco Chemical CompanyInventors: William K. Stephenson, Morris Kaplan
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Patent number: 5070131Abstract: A gear oil composition is provided, the composition comprising a hydrogenated star conjugated diolefin polymer having arms with weight average molecular weights between about 3,000 and about 15,000. Such star polymers are effective as viscosity index improvers, and yet are sufficiently shear stable for service in gear oil lubricants.Type: GrantFiled: September 28, 1990Date of Patent: December 3, 1991Assignee: Shell Oil CompanyInventors: Robert B. Rhodes, Rudolf J. Eckert, Donald E. Loeffler
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Patent number: 5066700Abstract: This invention relates to plastoelastomeric polyolefinic compositions comprising an intimate mixture of the following components, in the indicated percentages by weight:A) 10-50% of non cross-linked polypropylene;B) 2-10% of ethylene/propylene/(diene)non cross-linked elastomeric copolymer,C) 30-40% of polymeric product which is insoluble in xylene at 135.degree. C., comprising polypropylene and ethylene/propylene/(diene) copolymer, andD) 5-58% of an extender oil.This invention also relates to a process for preparing the above compositions, which consists in subjecting to vulcanization under dynamic conditions a mixture comprising, in % by weight:A) 20-80% of polypropylene,B) 80-20% of ethylene/propylene/(diene) elastomeric copolymer,C) 0.1-10%, referred to such copolymer, of a peroxide,D) 5-60%, referred to such peroxide, of a furan derivative as a cross-linking coadjuvant.and in adding, after vulcanization, the extender oil in an amount ranging from 6 to 100% calculated on the vulcanized product.Type: GrantFiled: May 29, 1990Date of Patent: November 19, 1991Assignee: Ausimont S.p.A.Inventors: Vittorio Braga, Michele Manica, Emilio Martini, Federico Milani
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Patent number: 5055514Abstract: A paint resin composition which does not appreciably attack an old coated film or a substrate to be coated, said composition consisting essentially of(A) a copolymer having a glass transition point of from -30.degree. C. to +50.degree. C., a number average molecular weight of from 4,000 to 20,000 and a weight average molecular weight/number average molecular weight ratio of from 1.8 to 10 and obtained by copolymerizing (a-1) 1 to 50% by weight of a vinyl monomer having a hydroxyl group, (a-2) 0 to 5% by weight of a vinyl monomer having a carboxyl group, (a-3) 0 to 80% by weight of a polyester resin having a copolymerizable unsaturated bond, (a-4) 10 to 80% by weight of a vinyl monomer having a side-chain alkyl group with 4 to 8 carbon atoms, and (a-5) 4 to 49% by weight of another vinyl monomer copolymerizable with the monomers (a-1) to (a-4), the total proportion of these monomers being 100% by weight, in the presence of a radical initiator in a nonpolar organic solvent having an aniline point of 7.degree.Type: GrantFiled: September 10, 1990Date of Patent: October 8, 1991Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hajime Kumada, Akio Shoji
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Patent number: 5021498Abstract: An asphalt/asphaltene dispersant comprising an admixture of polymer A and polymer B ranging from 100 to 10 weight percent A to from 10 to 100 weight percent B. Wherein polymer A is an alkyl substituted phenol-formaldehyde liquid resin having a weight average molecular weight ranging from about 1000 to about 20,000 and an alkyl substituent containing from 4 to 24 carbon atoms, with alkyl substituent may be linear or branched alkyl group. Polymer B is a hydrophilic-lipophilic vinylic polymer.Type: GrantFiled: November 8, 1989Date of Patent: June 4, 1991Assignee: Nalco Chemical CompanyInventors: William K. Stephenson, Morris Kaplan
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Patent number: 5019620Abstract: An elastic crosslinked metathesis polymer composition is disclosed comprised of a copolymer of a norbornene-type compound which metathesis polymerizes to a linear polymer and a norbornene-type compound having a second double bond of similar reactivity which forms a crosslinked polymer, and a hydrocarbon-based extending oil. Norbornene and dicyclopentadiene are typical comonomers. Polymerization is carried out by a RIM or resin injection molding process.Type: GrantFiled: September 27, 1990Date of Patent: May 28, 1991Assignee: Hercules IncorporatedInventors: Zenichiro Endo, Shigeyoshi Hara
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Patent number: 5013784Abstract: Acrylic copolymer compositions which contain a tackifying hydrocarbon resin and a polyfunctional crosslinking monomer and the use of such composition in pressure-sensitive adhesives are described. The tackifying hydrocarbon resin is dissolved, as is the polyfunctional monomer, in a solution of alkyl(meth)acrylate and (meth) acrylic acid monomers and is present during the polymerization of the monomers to form a tackified acrylic copolymer.Type: GrantFiled: December 1, 1989Date of Patent: May 7, 1991Assignee: Exxon Chemical Patents Inc.Inventor: Henry W. Yang
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Patent number: 4994517Abstract: An anticorrosion lacquer which can be used in the ink-jet process for coating metal cans and receptacle parts, especially, with viscosity and surface tension allowing the use of the dispenser nozzles of ink-jet printing machines. The low viscosity anticorrosion lacquer contains polyvinylalcohol acetal, epoxy resin based upon epichlorhydrin and diphenylolpropane and nonplastified methyl esterified melamineformaldehyde resin in a mixture of alcohols and aromatic hydrocarbons.Type: GrantFiled: June 8, 1989Date of Patent: February 19, 1991Assignee: Schmalbach-Lubeca AGInventor: Klaus-Peter Vohrer
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Patent number: 4963612Abstract: This invention relates to plastoelastomeric polyolefinic compositions comprising an intimate mixture of the following components, in the indicated percentages by weight:(A) 10-50% of non cross-linked polypropylene;(B) 2-10% of ethylene/propylene/(diene) non cross-linked elastomeric copolymer,(C) 30-40% of polymeric product which is insoluble in xylene at 135.degree. C., comprising polypropylene and ethylene/propylene/(diene) copolymer, and(D) 5-58% of an extender oil.This invention also relates to a process for preparing the above compositions, which consists in subjecting to vulcanization under dynamic conditions a mixture comprising, in % by weight;(A) 20-80% of polypropylene;(B) 80-20% of ethylene/propylene/(diene) elastomeric copolymer,(C) 0.1-10%, referred to such copolymer, of a peroxide,(D) 5-60%, referred to such peroxide, of a furan derivative as a cross-linking coadjuvant.and in adding, after vulcanization, the extender oil in an amount ranging from 6 to 100% calculated on the vulcanized product.Type: GrantFiled: September 13, 1989Date of Patent: October 16, 1990Assignee: Ausimont S.r.l.Inventors: Vittorio Braga, Michele Manica, Emilio Martini, Federico Milani
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Patent number: 4948825Abstract: 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: June 3, 1987Date of Patent: August 14, 1990Assignee: Avery International CorporationInventor: Yukihiko Sasaki
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Patent number: 4925894Abstract: Elastomer compositions which are particularly adapted for forming tire treads having low rolling resistance and good wet and dry grip traction comprise an elastomer having a Tg of -60.degree. C. or higher and low viscosity aromatic oil. Especially useful aromatic oils are those having a Saybolt Universal viscosity at 100.degree. F. of from about 50 to about 2500 SUS.Type: GrantFiled: February 14, 1986Date of Patent: May 15, 1990Assignee: Bridgestone/Firestone, Inc.Inventor: Shingo Futamura
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Patent number: 4912148Abstract: Thermoplastic elastomer having excellent processability and physical properties is provided by the composition:(A) monoolefin copolymer rubber: 20 to 90 parts by weight(B) crystalline poly-alpha olefin resin: 5 to 70 parts by weight(C) mineral oil-type oil: 5 to 100 parts by weight with respect to (A) plus (B)(D) polyolefin-type wax: 5 to 60 parts by weight with respect to (A) plus (B)(E) butyl rubber: 0.1 to 10 parts by weight with respect to (A) plus (B)in the extruder and then are dynamically partial cross-linked together with a certain amount of organic peroxide, cross-linking aids and coupling agents in the extruder.Type: GrantFiled: July 15, 1988Date of Patent: March 27, 1990Assignee: Tong Yang Nylon Co., Ltd.Inventors: Jae K. Kim, Sung M. Lee, Young D. Kim
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Patent number: 4904722Abstract: A method for controlling the viscosity of organic liquids, said organic liquid having a solubility parameter of less than 9.5, a viscosity, as measured at 25.degree. C., of less than 200 centipoises and said organic liquid is selected from the group consisting of mineral oils, synthetic oils, naphthanes, alkanes, cycloalkanes and aromatics and mixtures thereof, which comprises incorporating in said organic liquid about 0.01 to 20 grams of polymer complex per 100 ml. of said organic liquid, said polymer complex being formed "in situ" in said organic liquid or dissolved in said organic liquid, said complex being comprised of polymer A, containing about 4 meq. to 500 meq. of neutralized sulfonate groups, and polymer B, containing basic nitrogen groups, both functional groups being present at a level of from about 4 to 500 meq. per 100 g. of polymer, wherein polymer B has the formula: ##STR1## wherein x is about 50.0 to 99.8 weight percent and y is about 0.2 to about 50.Type: GrantFiled: October 18, 1985Date of Patent: February 27, 1990Assignee: Exxon Research and Engineering CompanyInventors: Robert D. Lundberg, Robert R. Phillips, Dennis G. Peiffer, Ilan Duvdevani
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Patent number: 4840839Abstract: A thermoplastic mass passed between rollers consisting of a mixture, the essential components of which are: from 4 to 60% in weight of an oil having a saturate content, as determined by ASTM D 2007, below 15% in weight and with a high aromatic content; from 1 to 50% in weight of chlorinated polyethylene, having a chlorine content lying between 20 and 95% in weight; and from 20 to 90% in weight of fillers.Type: GrantFiled: April 27, 1987Date of Patent: June 20, 1989Assignee: Texsa, S.A.Inventor: Francisco C. Codina
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Patent number: 4840988Abstract: This invention is a rubber composition for a tire tread of 100 parts by weight (pbw) diene system rubber to which are added x pbw of carbon black and y pbw of softening agent. The softening agent contains z pbw of liquid polymer. The amounts of x, y and z are described by the inequalities (5/8)x-20.ltoreq.y.ltoreq.x and (y/5)+5.ltoreq.z. The liquid polymer has a flow points of 20.degree. C. or below. The rubber composition provided here gives a tire tread with improved performance in terms of grade climbing ability, braking and standing start, on ice as well as on snow. Besides, the service life of the rubber is prolonged, and tread performance deterioration is reduced to a minimum.Type: GrantFiled: February 16, 1988Date of Patent: June 20, 1989Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Rinichi Nakayama, Yasunori Yoshida, Satoshi Iwama
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Patent number: 4812509Abstract: Novel esters and polyesters are prepared by reacting cyclopentadienylethanol, bis(2-hydroxyethyl)dicyclopentadiene, or mixtures of the two with monobasic acid esters and dibasic acid diesters. These esters and polyesters are characterized by a reversible cross-linking mechanism and have utility as superior coatings and adhesives. High molecular weight, cross-linked polymers are also prepared in the present invention by reacting cyclopentadienylethanol with a polyolefin wax having an ester, acid or anhydride functional group.Type: GrantFiled: September 28, 1987Date of Patent: March 14, 1989Assignee: Eastman Kodak CompanyInventors: Jerome L. Stavinoha, Anthony W. McCollum
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Patent number: 4797322Abstract: Novel adhesives comprising an elastomer composition comprising (1) at least 30 percent by weight of a triblock terpolymer elastomer having polystyrene end blocks and rubber poly(ethylene-butylene) midblocks; (2) at least 10 percent by weight of a diblock copolymer elastomer of styrene and ethylenebutylene; and (3) at least 30 percent by weight of non-liquid polyisobutylene, e.g. having a molecular weight of at least 800,000, or a copolymer containing at least 95% by weight of isobutylene; said adhesive composition further containing at least one tackifying resin in an amount sufficient to provide the desired balance of adhesive properties, e.g. tack; and adhesive tapes including same.Type: GrantFiled: November 30, 1987Date of Patent: January 10, 1989Assignee: The Kendall CompanyInventors: Elwyn Huddleston, Karen C. Long
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Patent number: 4792584Abstract: An adhesive composition comprising100 parts by weight of a block copolymer (a) containing of at least one polymer block composed mainly ofa vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which(i) the vinyl aromatic hydrocarbon content [S] is 10 to 30% by weight,(ii) the 1,2-vinyl content of butadiene portion [V] is 20 to 50%, and(iii) the relationship between said vinyl aromatic hydrocarbon content [S] and said 1,2-vinyl content of butadiene portion [V] satisfies the formula,:40.ltoreq.[S]+[V].ltoreq.7040 to 200 parts by weight of a tackifier (b), and, optionallyvarious stabilizers, and a process for producing said composition.Type: GrantFiled: April 23, 1987Date of Patent: December 20, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Toshinori Shiraki, Yasuo Hattori, Masao Karouji
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Patent number: 4774277Abstract: Compositions of matter useful in the preparation of film which is soft and has high tensile, tear and impact strength. The compositions comprise polyolefin plastics blended with an elastomeric plasticizer; the latter comprises polyethylene or a copolymer of ethylene and an unsaturated ester of a lower carboxylic acid, olefinic elastomer and hydrocarbon oil.Type: GrantFiled: March 26, 1982Date of Patent: September 27, 1988Assignee: Exxon Research & Engineering Co.Inventors: Karel C. Janac, Robert C. Puydak, Donald R. Hazelton
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Patent number: 4761444Abstract: An elastomeric blend composition having improved tear properties and having a viscosity at 0.73 sec.sup.-1 and at 200.degree. C. of about 8.times.10.sup.3 to about 8.times.10.sup.5 poises, said composition formable into an elastomeric article, which comprises:(a) a neutralized sulfonated EPDM terpolymer having a viscosity at 0.73 sec.sup.-1 and at 200.degree. C. of about 5.times.10.sup.4 poises to about 5.times.10.sup.6 poises and about 10 to about 50 meq. sulfonate groups per 100 grams of said sulfonated EPDM terpolymer, said sulfonate groups being neutralized; and(b) about 2 to about 60 parts by weight of a fluorohydrocarbon elastomer per 100 parts of such sulfonated EPDM terpolymer.Type: GrantFiled: June 9, 1986Date of Patent: August 2, 1988Assignee: Exxon Research and Engineering CompanyInventors: Pawan K. Agarwal, William M. Petrik, Richard T. Garner
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Patent number: 4758620Abstract: Striation-free interlayer dielectric films of good reflectivity are formed by spin-coating a solution comprising 1,2,4-trimethylbenzene solvent containing a dissolved arylsiloxane oligomer or polymer capable of forming an interlayer dielectric film.Type: GrantFiled: July 2, 1987Date of Patent: July 19, 1988Assignee: Akzo America Inc.Inventors: George E. Whitwell, John H. Deatcher
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Patent number: 4722961Abstract: A roofing membrane composition comprising:(a) a first hydrolyzable polyolefin having a density less than or equal to 0.92 selected from the group consisting of (i) a copolymer of ethylene or propylene and silane and (ii) a silane modified polyethylene, polypropylene, or ethylene/propylene copolymer wherein, in (i) or (ii), the silane is present in an amount of about 0.Type: GrantFiled: June 16, 1986Date of Patent: February 2, 1988Assignee: Union Carbide CorporationInventor: Barry Topcik
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Patent number: 4677165Abstract: A rubber composition for a tire tread comprising a novel modified styrene-butadiene copolymer rubber, carbon black, and aromatic oil.Type: GrantFiled: October 17, 1986Date of Patent: June 30, 1987Assignees: The Yokohama Rubber Co., Ltd., Nippon Zeon Co., Ltd.Inventors: Yasushi Kikuchi, Kazuyoski Kayama, Akinori Tokieda, Hiroyuki Watanabe, Shuichi Akita
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Patent number: 4640945Abstract: The present invention relates to a family of novel and efficient drag reduction agents for a variety of organic solutions which comprise a family of polymeric complexes (i.e., polyampholytes) which are terpolymers of styrene/metal styrene sulfonate/n-vinylpyridine (NVP).The metal styrene sulfonate is an anionic monomer, while n-vinylpyridine is a base which becomes chemically coordinated to the metal ion. These styrene-based polyampholytes have approximately 1 to about 50 mole percent of the NVP moiety present within the macromolecular structure. These groups are not necessarily present in an equimolar charge ratio. The excess NVP allows for facile dispensability or solubility of the polyampholytes into the organic liquid.Type: GrantFiled: November 12, 1985Date of Patent: February 3, 1987Assignee: Exxon Research and Engineering CompanyInventors: Dennis G. Peiffer, Ralph M. Kowalik, Robert D. Lundberg
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Patent number: 4620855Abstract: N-acylated aminohydrocarbyl sulfonic acids or acid derivative compositions are described which are characterized by the presence with the structure of at least one acyl, acylimidoyl or acyloxy group attached to the amino nitrogen, said groups being derived from at least one of the carboxylic acid groups contained in an interpolymer of (i) at least one vinyl aromatic monomer and (ii) at least one alpha, beta-unsaturated acid or derivative thereof. Aqueous systems also are described which comprise at least about 40% of water and the N-acylated amino hydrocarbyl sulfonic acid or salt composition of the invention. The hydrocarbyl sulfonic acid or salt compositions of the present invention are useful as emulsifiers, thickeners, dispersants, etc. in the aqueous systems, and the compositions also are useful as additives in fuels and lubricants.Type: GrantFiled: November 7, 1984Date of Patent: November 4, 1986Assignee: The Lubrizol Corp.Inventor: William A. Higgins
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Patent number: 4590229Abstract: A binder composition containing a phenolic resin in an organic solvent, a polyisocyanate, wherein said organic solvent is substantially free from polar solvents, and methods of making and using the same.Type: GrantFiled: June 4, 1984Date of Patent: May 20, 1986Assignee: Ashland Oil, Inc.Inventor: John J. Gardikes
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Patent number: 4567222Abstract: Bitumen-polymer compositions are prepared, by mixing, at between 130.degree. C. and 230.degree. C., a bitumen with a styrene and conjugated diene copolymer and a sulphur source, the copolymer and the sulphur source being added to the bitumen either directly, or in the form of a mother solution in a hydrocarbon oil, then by maintaining the whole under stirring at between 130.degree. C. and 230.degree. C. for at least fifteen minutes.By way of sulphur source is used 0.005 to 15% by weight, with respect to bitumen, one or several polymeric or not, cyclic or linear polysulphides, and especially ditertiododecyl or dinonyl pentasulphide. The bitumen-polymer compositions obtained can be used for the obtention of superficial road coverings and present a constant quality of its properties.Type: GrantFiled: February 21, 1985Date of Patent: January 28, 1986Assignee: Elf FranceInventors: Germain Hagenbach, Paul Maldonado, Jacques Maurice
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Patent number: 4537919Abstract: A process for forming a thickened fluid having a viscosity of at least about 50 cps which includes the steps of:(a) forming two solvent systems one of an organic liquid and the other of said organic liquid and a polar cosolvent, said polar cosolvent being less than about 15 weight percent of each said solvent system, a viscosity of each said solvent system being less than about 100 cps;(b) dissolving a water insoluble sulfonated elastomeric polymer in said first solvent system to form a first solution, a concentration of said sulfonated polymer in said first solution being about 0.02 to about 10 weight percent, a viscosity of said first solution being less than about 2000 cps;(c) dissolving an elastomeric polymer in said second solvent system of said organic liquid to form a second solution, a concentration of said elastomeric polymer in said second solution being about 0.Type: GrantFiled: August 24, 1984Date of Patent: August 27, 1985Assignee: Exxon Research and Engineering Co.Inventors: Pawan K. Agarwal, Robert D. Lundberg
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Patent number: 4522960Abstract: A process for gelling a fluid having a viscosity of at least about 50 cps which includes the steps of: forming a solvent system of the nonpolar organic liquid and a polar cosolvent, the polar cosolvent being less than about 15 weight percent of the solvent system and a viscosity of the solvent system being less than about 100 cps; dissolving a water insoluble, oil soluble terpolymer in the solvent system to form a solution, a concentration of the terpolymer in the solution being about 0.Type: GrantFiled: August 6, 1984Date of Patent: June 11, 1985Assignee: Exxon Research & Engineering Co.Inventors: Dennis G. Peiffer, Robert D. Lundberg
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Patent number: 4520158Abstract: A process for increasing the viscosity of a hydrocarbon organic liquid under increasing shear rate which includes the step of:(a) forming a solution of said hydrocarbon organic liquid and a polyampholyte having about 1 to about 500 milliequivalents of sulfonate groups per 100 gms. of said polyampholyte, wherein the concentration of said polyampholyte is about 0.01 to about 20 wt. %, said polyampholyte having the formula: ##STR1## wherein X is about 40 to about 98 mole %, y is about 1 to about 50 mole %, and z is about 1 to about 50 mole %, wherein y and z are less than 60 mole %, and M is an amine or a metal cation selected from the group consisting of aluminum, iron, lead, Groups IA, IIA, IB and IIB of the Periodic Table of Elements; and(b) subjecting said solution to increasing shear rate to increase the viscosity of said solution by at least 10% as said shear rate increases.Type: GrantFiled: August 6, 1984Date of Patent: May 28, 1985Assignee: Exxon Research & Engineering Co.Inventors: Dennis G. Peiffer, Robert D. Lundberg, Ilan Duvdevani, Warren A. Thaler
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Patent number: 4511689Abstract: This invention relates to a blend of an olefin/alkyl acrylate copolymer and hardened extract which has a saturated hydrocarbon content of not more than 10% by weight and articles made therefrom, e.g. linings for reservoirs and for water proofing roofs. The new products are easier to manufacture since they resist gelation, do not suffer from problems of shrinkage and are appreciably cheaper.Type: GrantFiled: December 3, 1982Date of Patent: April 16, 1985Assignee: The British Petroleum Company p.l.c.Inventor: Alan C. G. Aldred
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Patent number: 4510079Abstract: An electrically-conductive polyolefin resin composition having excellent resin flow properties which comprises (a) a polyolefin resin, (b) sulfur, (c) a plate adhesion promoter, (d) an electrically-conductive carbon black, and (e) a flow improver.Type: GrantFiled: April 7, 1982Date of Patent: April 9, 1985Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yoichi Kawai, Yoshihisa Gotoh, Sachio Yokote, Masami Maki, Katsumi Sekiguchi
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Patent number: 4447575Abstract: Blends of a preformed poly(methyl ethenyl benzene) polymer or copolymer derived from an isomers of methyl ethenyl benzenes in which 1-methyl-4-ethenyl benzene is the predominant isomers, and up to about 10 weight percent of mineral oil are disclosed.Type: GrantFiled: September 30, 1982Date of Patent: May 8, 1984Assignee: Mobil Oil CorporationInventor: Robert V. Russo
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Patent number: 4426473Abstract: The present invention relates to a process for the gelation (i.e. thickening) of an aqueous acid solution which includes the steps of forming a solvent system of an organic liquid or oil and a polar cosolvent, the polar cosolvent being less than about 15 weight percent of the solvent system, a viscosity of the solvent system being less than about 100 cps; dissolving a neutralized sulfonated polymer in the solvent system to form a solution, a concentration of the neutralized sulfonated polymer in the solution being about 0.01 to about 0.5 weight percent, a viscosity of the solution being less than about 200 cps; and admixing or contacting said solution with about 5 to about 500 volume percent of the aqueous acid solution, the aqueous acid solution being immiscible with the organic liquid and the polar cosolvent and neutralized sulfonated polymer transferring from the organic liquid to the aqueous acid phase, thereby causing the aqueous acid phase to thicken (i.e. interfacial viscosification).Type: GrantFiled: May 3, 1982Date of Patent: January 17, 1984Assignee: Exxon Research and Engineering Co.Inventors: Dennis G. Peiffer, Robert D. Lundberg, Thad O. Walker
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Patent number: 4399249Abstract: Pressure sensitive adhesive compositions are provided that are especially suitable for forming contact bonds that are resealable to polyethylene surfaces at room temperature. Such adhesive compositions include a blend of a linear or a radial block copolymer, an end-block modifying resin compatible with the end or thermoplastic block of the copolymer and incompatible with the mid of elastomeric block, a plasticizing process oil compatible with the mid or elastomeric block, and, only if desired, not more than about 14 weight percent of a mid block or elastomeric block associating or modifying resin compatible with the mid or elastomeric block and incompatible with the end or thermoplastic block. A particularly advantageous utilization of these compositions is as a releasable and resealable sealing strip for thin-walled storage or sandwich bag products made of a polyolefin film.Type: GrantFiled: December 24, 1980Date of Patent: August 16, 1983Assignee: Eschem Inc.Inventor: Leon L. Bildusas