Solid Polymer Derived From Ethylenic Reactants Only, At Least One Of Which Is Propylene Patents (Class 524/70)
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Patent number: 4889880Abstract: Modified asphalt compositions are described which comprise(A) asphalt, and(B) a minor amount, sufficient to reduce or retard degradation of the asphalt in service, of at least one polymer derived from a butene having a weight average molecular weight (Mw) of about 5,000 to about 1,000,000. Generally, the modified asphalt composition will contain from about 0.01 to about 10% by weight, based on the weight of the asphalt, of the polymer as defined. The modified asphalt compositions of the present invention are useful in roofing applications and in preparing aggregate-containing asphalt concretes which can be employed as paving compositions.Type: GrantFiled: March 14, 1988Date of Patent: December 26, 1989Assignee: The Lubrizol CorporationInventor: H. Richard Miller
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Patent number: 4847310Abstract: A floor covering material with enhanced chemical, particularly acid, resistance containing refractory oxide, asphaltite, high oil asphalt, asphalt with a softening point in the range of about 210.degree.-230.degree. F., reinforcing fiber, crystalline polyolefin polymer and optionally, non-crystalline polyolefin polymer. The disclosed floor covering material is single-layered.Type: GrantFiled: September 14, 1988Date of Patent: July 11, 1989Assignee: Manville CorporationInventors: Donald L. Daniels, Jr., Ruben G. Garcia
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Patent number: 4839404Abstract: A composition useful as a pavement material comprising a mixture of asphalt, aggregate and an interpolymer of an .alpha.-olefin monomer selected from the group consisting of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or an ionomer of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid.Type: GrantFiled: July 28, 1986Date of Patent: June 13, 1989Assignee: The Dow Chemical CompanyInventors: Dane Chang, David L. Wolfe
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Patent number: 4837252Abstract: The present invention provides a process for the preparation of polymer modified asphalt compositions.Type: GrantFiled: December 14, 1987Date of Patent: June 6, 1989Assignee: Polysar LimitedInventors: Frederick P. Seguin, Michel Longuet
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Patent number: 4833185Abstract: This invention concerns a method whereby the sludge obtained when reclaiming waste lubricating oils by treating with acids or solvents can be processed by the addition of elastomers and hardeners to obtain a compound which--when used in conjunction with bituminous conglomerates and mixtures--gives these conglomerates or mixtures superior mechanical characteristics and high strength at high and low temperatures.Type: GrantFiled: March 18, 1988Date of Patent: May 23, 1989Inventor: Marco Fachini
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Polymeric compositions suitable for use as bitumen modifiers and bituminous compositions so modified
Patent number: 4829109Abstract: (1) Polymeric compositions, suitable for use as bitumen modifiers, comprising, by weight:(a) 20-50% of an ethylene/propylene elastomeric copolymer containing from 60 to 75% by weight of ethylene, and having a value of Mooney viscosity (ML 1+4) at 100.degree. C. higher than 5;(b) 0-25% of polypropylene prevailingly constituted by isotactic macromolecules having an M.I. value higher than 1;(c) 0-70% of substantially amorphous polypropylene, possibly in mixture with amorphous copolymers of ethylene with propylene, such component (c) having a total combined ethylene content lower than 60% by weight, and intrinsic viscosity (in tetralin at 135.degree. C.) lower than 2 dl/g;(d) 0-25% of polyethylene having density comprised between 0.98 and 0.96 g/cm.sup.3, and having a value of M.I. higher than 5;(e) 0-25% of an ethylene/vinyl acetate (EVA) copolymer containing from 60 to 95% by weight of ethylene, having a value of M.I. higher than 0.Type: GrantFiled: May 8, 1986Date of Patent: May 9, 1989Assignee: Ausimont S.p.A.Inventors: Vittorio Ciaccia, Federico Milani -
Patent number: 4816340Abstract: A polyolefin composition and a molded article obtained therefrom are disclosed. The composition comprises a polyolefin and a modified polymer obtained by graft-copolymerizing an unsaturated dicarboxylic acid or an anhydride thereof to a specific ethylene-propylene-based copolymer rubber. The molded article obtained from the composition has an increased impact strength and improved workability in finishing, particularly coating with an urethane coating.Type: GrantFiled: May 5, 1987Date of Patent: March 28, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Toshiki Doi, Hideo Shinonaga, Hideyuki Kuribayashi
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Patent number: 4771090Abstract: Compositions comprising 15 to 20% amorphous olefin copolymer, 3 to 5% ethene-propene-ethylidine norbornene terpolymer of the sequence type with 25 to 30% propene content, 6 to 8% double bonds, and raw strength 10 MPa, 60 to 82% distilled bitumen, 0 to 3% isotactic polypropylene, 0 to 15% filler and 0 to 1% antioxidizing agent, when heat-sealed to a layer of oxidized bitumen, form a stable bond therewith and thus can be used to form a waterproofing surface coat on fibrous roofing sheets.Type: GrantFiled: July 20, 1987Date of Patent: September 13, 1988Assignee: Huels AktiengesellschaftInventors: Helmut Kehr, Horst Denzel
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Patent number: 4738997Abstract: A bitumen-containing composition which comprises;(a) bitumen;(b) about 0.5 to about 30 parts by weight of a polymer complex per 100 parts by weight of the bitumen; and(c) about 0 to about 100 parts by weight of a filler per 100 parts by weight of the bitumen.Type: GrantFiled: December 11, 1985Date of Patent: April 19, 1988Assignee: Exxon Research and Engineering CompanyInventors: Robert D. Lundberg, Ilan Duvdevani, Dennis G. Peiffer
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Patent number: 4728683Abstract: Ethylene-vinyl acetate copolymers having a melt index of 700-10,000 and a vinyl acetate content of from 1-40% by weight (based on the copolymer) are used as components of bitumenous binder compositions for the surface dressing of roads to improve the temperature range of their operability, the particular EVA's are also found to have good compatibility with the types of bitumen used.Type: GrantFiled: June 13, 1986Date of Patent: March 1, 1988Assignee: Exxon Research & Engineering Co.Inventors: Jozef A. F. Smits, Marc P. Plaindoux
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Patent number: 4717743Abstract: A polyolefin-base resin composition comprising a vegetable fibrous material in fiber form containing cellulose as major constituent and a high flow rate polyolefin-base resin having a melt index of 20 to 100. By using this resin it has become possible to improve the poor processability of a conventional polyolefin-base resin composition incorporated with a vegetable fibrous material in fiber form containing cellulose as major constituent. The invention makes it possible to produce an article of large size and small wall thickness by injection molding while desirable mechanical characteristics being retained.Type: GrantFiled: March 27, 1986Date of Patent: January 5, 1988Assignee: Nippondenso Co., Ltd.Inventors: Hiroyuki Wakabayashi, Fumio Kato, Tamotsu Matsubara, Yasuo Ishikawa
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Patent number: 4707413Abstract: Compositions comprising 15 to 20% amorphous olefin copolymer, 3 to 5% ethene-propene-ethylidine norbornene terpolymer of the sequence type with 25 to 30% propene content, 6 to 8% double bonds, and raw strength 10 MPa, 60 to 82% distilled bitumen, 0 to 3% isotactic polypropylene, 0 to 15% filler and 0 to 1% antioxidizing agent, when heat-sealed to a layer of oxidized bitumen, form a stable bond therewith and thus can be used to form a waterproofing surface coat on fibrous roofing sheets.Type: GrantFiled: March 12, 1986Date of Patent: November 17, 1987Assignee: Huels AktiengesellschaftInventors: Helmut Kehr, Horst Denzel
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Patent number: 4617227Abstract: A waterproof membrane useful as a coating or flashing for roofs or as a liner for containing liquids which comprises a composition containing a neutralized sulfonated EPDM polymer and asphalt, the former component comprising at least 30% by weight of the total weight of the polymer and asphalt. The composition has outstanding physical properties and an unexpectedly high tensile strength.Type: GrantFiled: March 12, 1985Date of Patent: October 14, 1986Assignee: Uniroyal Chemical Company, Inc.Inventor: Ebon P. Weaver
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Patent number: 4609697Abstract: There is provided a hot melt adhesive for bonding shaped articles and surface structures of ethylene-propylene terpolymer (EPDM) between one another, or with other materials, consisting 100 parts by weight of styrene-ethylene-butylene-styrene block copolymer rubber; 10-150 parts by weight phr (per hundred rubber) aliphatic hydrocarbon resins; 50-300 parts by weight phr (per hundred rubber) aromatic hydrocarbon resins; and up to 1,000 parts by weight phr (per hundred rubber) bitumin with a softening point, according to the Ring and Ball method (DIN test 52011), 37/44-54/59.Type: GrantFiled: August 16, 1984Date of Patent: September 2, 1986Assignee: Phoenix AktiengesellschaftInventor: Gunter Albers
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Patent number: 4591611Abstract: Ionomeric polymer compositions are provided which comprise an ionomeric polymer and about 5 to about 125 parts by weight of gilsonite, per 100 parts by weight of the ionomeric polymer. The inventive compositions can be formulated as processable materials which can be fabricated into articles such as sheets, tubes, and films having improved tear propagation resistance and fire retardance and decreased levels of water absorption.Type: GrantFiled: September 20, 1984Date of Patent: May 27, 1986Assignee: W. R. Grace & Co.Inventors: Robert F. Jenkins, Bahram Siadat
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Patent number: 4497921Abstract: The present invention is a sulfur stabilized composition. The composition comprises an oxidized polyolefin, preferably oxidized polyethylene or oxidized polypropylene, with oxidized polyethylene being most preferred. The composition of the present invention can comprise oxidized polyolefin, asphalt, preferably oxidized, and optionally a filler.Type: GrantFiled: September 2, 1983Date of Patent: February 5, 1985Assignee: Allied CorporationInventors: Irving B. Chang, Robert E. Beckwith, Jr.
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Patent number: 4492781Abstract: Method and composition for protecting, maintaining and repairing paved surfaces utilizing a workable fiber-containing asphalt and/or latex emulsion in combination with an active amount of a water-soluble polymer material differing in ionic characteristics from the emulsion or emulsifier component thereof.Type: GrantFiled: May 19, 1983Date of Patent: January 8, 1985Inventors: Francis J. Duszak, James P. Modrak, Dick Deaver
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Patent number: 4460723Abstract: Stabilization of asphalt and asphalt rubber compositions against degradation, e.g., viscosity increase by addition of a finite small but effective viscosity stabilizing amount of at least one alkali metal salt of an organic or inorganic acid.Type: GrantFiled: November 29, 1982Date of Patent: July 17, 1984Assignee: Phillips Petroleum CompanyInventor: Kent W. Rollmann
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Patent number: 4451598Abstract: A composition for sealing products comprising from 35 to 95 weight percent of at least one distillation product selected from the group consisting of bitumens and soft pitches, and from 5 to 65 weight pecent of a terpolymer having a melt index between 1 and 10 dg/minute and comprising: (i) from 88 to 98.7 mole percent of units derived from ethylene (ii) from 1 to 10 mole percent of units derived from an ester selected from alkyl acrylates and methacrylates, wherein said alkyl group has from 1 to 6 carbon atoms, and (iii) from 0.3 to 3 mole percent of units derived from maleic anhydride.Type: GrantFiled: June 2, 1983Date of Patent: May 29, 1984Assignee: Societe Chimique des Charbonnages S.A.Inventor: Jean C. Decroix
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Patent number: 4440886Abstract: Stabilization of asphalt and asphalt-rubber compositions against degradation, e.g., viscosity increase by addition of a finite small and effective viscosity stabilizing amount of an alkali metal nitrite.Type: GrantFiled: November 29, 1982Date of Patent: April 3, 1984Assignee: Phillips Petroleum CompanyInventor: Gerard Kraus
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Patent number: 4430464Abstract: An improved pavement binder composition comprises a digestion of rubber particles of low bulk density, preferably of the porous nodular surface morphological type, in a bituminous material.Type: GrantFiled: December 30, 1981Date of Patent: February 7, 1984Assignee: Australian Road Research BoardInventor: John W. H. Oliver
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Patent number: 4422878Abstract: Paving mixtures are disclosed comprised of paving grade asphalt containing about 4 to 10% by weight of a fibrous filler and 2.5 to 15% by weight of a mixture of eighteen carbon fatty acids containing up to about 30% by weight of rosin.Type: GrantFiled: November 29, 1982Date of Patent: December 27, 1983Assignee: Hercules IncorporatedInventor: Frank R. Fry
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Patent number: 4419469Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 50 parts by weight of bitumen. The thermoplastic blends have unexpectant increases in properties, especially tear strength, tensile strength, high temperature (100.degree. C.) tear strength, and smooth surfaces when injection molded. Moreover, the bitumen lowers the injection molding pressure, thus enabling larger parts to be molded. The compositions, which may be partially cured, also have excellent aging properties. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.Type: GrantFiled: April 16, 1980Date of Patent: December 6, 1983Assignee: The Firestone Tire & Rubber CompanyInventors: Georg G. A. Bohm, Lee E. Vescelius, Gary R. Hamed
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Patent number: 4418167Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 50 parts by weight of bitumen. The thermoplastic blends have unexpectant increases in properties, especially tear strength, tensile strength, high temperature (100.degree. C.) tear strength, and smooth surfaces when injection molded. Moreover, the bitumen lowers the injection molding pressure, thus enabling larger parts to be molded. The compositions, which may be partially cured, also have excellent aging properties. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.Type: GrantFiled: September 17, 1981Date of Patent: November 29, 1983Assignee: The Firestone Tire & Rubber CompanyInventors: Georg G. A. Bohm, Lee E. Vescelius, Gary R. Hamed
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Patent number: 4409345Abstract: A polyolefin resin composition which is suitable mainly for affording superior processing properties of sheet and little in the variation of flowability at hot processing temperatures is provided.The composition comprises (A) a resin mixture comprising a polypropylene resin and a polyethylene resin, the respective percentages by weight of these resins in the mixture being specified, (B) a polyolefin resin modified with a polymerizable unsaturated carboxylic acid, its salt or its ester by graft polymerization and (C) finely divided vegetable fibers, the ratio of (A) to (B) and the content of (C) in the composition being both specified. Further an agent (D) may be added to the composition, such as petroleum resin, rosin, rosin-like resin, plasticizer or inorganic filler.Type: GrantFiled: December 30, 1981Date of Patent: October 11, 1983Assignee: Chisso CorporationInventors: Tsutomu Moteki, Kazuo Aoki, Kunihiro Yamaguchi, Michio Yoshizaki
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Patent number: 4393154Abstract: An improved curable chopped fiber loaded elastomer or plastic composition composed of a blend of about 5 to 50 percent of chopped fiber of up to 1.3 centimeters in length and 95 to 50 percent of particulate unvulcanized elastomer or plastic which is capable of passing a 6 mesh U.S. Standard Screen.Type: GrantFiled: July 30, 1981Date of Patent: July 12, 1983Assignee: The Goodyear Tire & Rubber CompanyInventors: Keith A. Tyler, Sidney R. Fix
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Patent number: 4387175Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 50 parts by weight of bitumen. The thermoplastic blends have unexpectant increases in properties, especially tear strength, tensile strength, high temperature (100.degree. C.) tear strength, and smooth surfaces when injection molded. Moreover, the bitumen lowers the injection molding pressure, thus enabling larger parts to be molded. The compositions, which may be partially cured, also have excellent aging properties. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.Type: GrantFiled: September 17, 1981Date of Patent: June 7, 1983Assignee: The Firestone Tire & Rubber CompanyInventors: Georg G. A. Bohm, Lee E. Vescelius, Gary R. Hamed
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Patent number: 4385142Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 50 parts by weight of bitumen. The thermoplastic blends have unexpectant increases in properties, especially tear strength, tensile strength, high temperature (100.degree. C.) tear strength, and smooth surfaces when injection molded. Moreover, the bitumen lowers the injection molding pressure, thus enabling larger parts to be molded. The compositions, which may be partially cured, also have excellent aging properties. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.Type: GrantFiled: September 17, 1981Date of Patent: May 24, 1983Assignee: The Firestone Tire & Rubber CompanyInventors: Georg G. A. Bohm, Lee E. Vescelius, Gary R. Hamed
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Patent number: 4371641Abstract: The instant invention relates to improved roofing materials which are a blend composition of a bitumen, a neutralized sulfonated polymer, and a filler, wherein the concentration level of the neutralized sulfonated polymer is about 5 to about 25 parts by weight per 100 parts by weight of the bitumen, more preferably about 7 to about 20, and the concentration level of the filler is about 0 to about 100 parts by weight per 100 parts of the bitumen. The improved roofing material based on such a composition has excellent stability towards oxidation, is U.V. stable and has good resistance to creep.Type: GrantFiled: December 21, 1981Date of Patent: February 1, 1983Assignee: Exxon Research and Engineering Co.Inventors: Gerard A. M. Boyer, Ilan Duvdevani, Jean-Marie A. Muller
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Patent number: 4362828Abstract: This invention relates to hot melt adhesive compositions which include a neutralized EPDM terpolymer which has about 5 to about 50 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated elastomeric EPDM terpolymer, a neutralized sulfonated 1,2-syndiotactic polybutadiene resin which has about 5 to about 50 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated polybutadiene, and about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate having about 5 to about 6 carbon atoms the hydrocarbon resin being composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated EPDM terpolymer.Type: GrantFiled: November 20, 1981Date of Patent: December 7, 1982Assignee: Exxon Research and Engineering Co.Inventors: Pawan K. Agarwal, Warren A. Thaler