At Least Two Solid Hydrocarbons Patents (Class 524/477)
-
Patent number: 5338792Abstract: The improved heat-resistant overwrap film is formed from a resin composition that comprises (A) 98-70 parts by weight of a 4-methyl-1-pentene based polymer, (B) 1-15 parts by weight of an isobutylene based polymer having a kinematic viscosity of 2-5000 cSt at 100.degree. C., and (C) 1-15 parts by weight of a butene-1 based solid polymer, with the sum of (A)+(B)+(C) being 100 parts by weight. The film is excellent in heat resistance, flexibility, tackiness and transparency.Type: GrantFiled: May 20, 1993Date of Patent: August 16, 1994Assignees: Mitsui Petrochemical Industries, Ltd., Chugoku Resin Co., Ltd.Inventors: Yasushi Nagase, Masami Kobayashi, Tatsuo Kato, Shinichi Imuta
-
Patent number: 5284896Abstract: Rubber compositions of a selected base rubber and a specified paraffin was containing 50% or more of a normal paraffin and having a carbon area ratio of less than 4.0 as determined by gas chromatography within a carbon number range of from 23 to 42. The ratio is derived by counting a first paraffin content which is defined by the paraffin of maximum content in the wax and a second paraffin content which is defined by the paraffin of minimum content in the wax and thereafter dividing the first paraffin content by the second paraffin content. The composition is highly stable in initial tack with less dependence on temperature before curing.Type: GrantFiled: February 8, 1993Date of Patent: February 8, 1994Assignee: The Yokohama Rubber Co., Ltd.Inventors: Jun Shimada, Shigeru Shinoda, Kazuhiro Yamada
-
Patent number: 5270360Abstract: A two-phase thermoplastic composition adapted for forming thermoplastic patterns. The composition comprises an organic thermoplastic pattern material and at least about 5% by weight of discrete particles of cross-linked poly(methylmethacrylate) that are physically stable at temperatures above 130.degree. F. Also disclosed are investment casting patterns of such composition and processes utilizing such composition.Type: GrantFiled: January 3, 1992Date of Patent: December 14, 1993Assignee: Yates Manufacturing CompanyInventor: Paul Solomon
-
Patent number: 5260377Abstract: Crosslinkable carbosilane polymer formulations are prepared from saturated or unsaturated carbosilane polymers containing reactive silicon hydride radicals in the polymer chain combined with polycyclic polyene crosslinkers having two or more double bonds that are reactive in the hydrosilation crosslinking reaction.Type: GrantFiled: November 5, 1992Date of Patent: November 9, 1993Assignees: University of Southern California, Hercules IncorporatedInventors: William P. Weber, Raymond T. Leibfried, Xiugao Liao
-
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
-
Patent number: 5053446Abstract: A composite useful in thermal energy storage, said composite being formed of a polyolefin matrix having a phase change material such as a crystalline alkyl hydrocarbon incorporated therein, said polyolefin being thermally form stable; the composite is useful in forming pellets, sheets or fibers having thermal energy storage characteristics; methods for forming the composite are also disclosed.Type: GrantFiled: March 3, 1989Date of Patent: October 1, 1991Assignee: University of DaytonInventor: Ival O. Salyer
-
Patent number: 5021257Abstract: The present invention is directed to a hot-melt adhesive containing at least one propylene/1-hexane copolymer. The adhesive contains an amount of a low viscosity, substantially crystalline wax, having a melting point of about 90.degree. C. to about 125.degree. C., sufficient to improve the elastic delamination resistance of the adhesive. The adhesive are particularly useful in disposable diaper construction.Type: GrantFiled: October 2, 1989Date of Patent: June 4, 1991Assignee: Eastman Kodak CompanyInventors: Bruce W. Foster, Clyde N. Clubb, Richard K. Stuart, Jr.
-
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
-
Patent number: 4940844Abstract: A stable polyol-alkali metal silicate emulsion is produced by mixing and emulsifying an aqueous alkali metal solution, a polyol and an organic compound that will cause the aqueous alkali metal silicate solution to solidify. The polyol-alkali metal silicate emulsion may be used to react with compounds containing at least two isocyanate radicals to produce polyurethane silicate solid or foamed products which may be used for thermal and sound insulation, coating agents, adhesives, caulking agents and molded objects.Type: GrantFiled: April 4, 1988Date of Patent: July 10, 1990Inventor: David H. Blunt
-
Patent number: 4908166Abstract: A composite useful in thermal energy storage, said composite being formed of a polyolefin matrix having a phase change material such as a crystalline alkyl hydrocarbon incorporated therein. The composite is useful in forming pellets, sheets or fibers having thermal energy storage characteristics; methods for forming the composite are also disclosed.Type: GrantFiled: May 27, 1988Date of Patent: March 13, 1990Assignee: University of DaytonInventor: Ival O. Salyer
-
Patent number: 4886853Abstract: The present invention is directed to a hot-melt adhesive containing at least one propylene/1-hexene copolymer. The adhesive contains an amount of a low viscosity, substantially crystalline wax, having a melting point of about 90.degree. C. to about 125.degree. C., sufficient to improve the elastic delamination resistance of the adhesive. The adhesives are particularly useful in disposible diaper construction.Type: GrantFiled: February 23, 1989Date of Patent: December 12, 1989Assignee: Eastman Kodak CompanyInventors: Bruce W. Foster, Clyde N. Clubb, Richard K. Stuart, Jr.
-
Patent number: 4877827Abstract: This invention relates to a polymer composition comprising(a) 30-70 parts by weight of one or more ethylene-propylene-diene rubbers,(b) 30-70 parts by weight of one or more ethylene-vinyl acetate copolymers with a vinyl acetate content of 18-40% by weight, and(c) 1-25 parts by weight of one or more other polymers.The composition can be used with advantage, among other purposes for improving the miscibility of synthetic resins.Type: GrantFiled: March 14, 1988Date of Patent: October 31, 1989Inventor: Lambertus A. Van Der Groep
-
Patent number: 4857594Abstract: A melt adhesive composition containing an amorphous polypropylene, a selectively hydrogenated monoalkenyl arene/conjugated diene block copolymer and a tackifier.Type: GrantFiled: April 28, 1988Date of Patent: August 15, 1989Assignee: Baychem International, Inc.Inventors: Pallavoor R. Lakshmanan, Son T. Nguyen
-
Patent number: 4826909Abstract: Compatible polymer blends useful as melt adhesives comprising a copolymer of butene-1 and from about 5.5 to about 20 weight percent of ethylene or propylene, a hydrocarbon tackifier and an amorphous polypropylene.Type: GrantFiled: May 12, 1988Date of Patent: May 2, 1989Assignee: Baychem International, Inc.Inventors: Pallavoor R. Lakshmanan, Paula J. Carrier
-
Patent number: 4711813Abstract: A composite useful in thermal energy storage, said composite being formed of a polyethylene matrix having a straight chain alkyl hydrocarbon incorporated therein, said polyethylene being crosslinked to such a degree that said polyethylene matrix is form stable and said polyethylene matrix is capable of absorbing at least 10% by weight of said straight chain alkyl hydrocarbon; the composite is useful in forming pellets or sheets having thermal energy storage characteristics.Type: GrantFiled: November 22, 1985Date of Patent: December 8, 1987Assignee: University of DaytonInventor: Ival O. Salyer
-
Patent number: 4668724Abstract: The present invention relates to a non-hydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite composition can be extruded in the form of a rope, rod, sheet or the like and is sufficiently tacky for adherence to a wall or conduit, floor or roof in areas of potential water flow to prevent the seepage of water through the bentonite composition. In one embodiment, the bentonite composition includes a polypropene and a polybutene and an elastomer, such as butyl rubber, having sufficient resilience to stretch or expand with the expanding bentonite upon hydration and to aid in maintaining the structural integrity and cohesiveness of the composition. In another embodiment, the composition comprises bentonite, an elastomer, and any plasticizer compatible with the elastomer.Type: GrantFiled: June 12, 1985Date of Patent: May 26, 1987Assignee: American Colloid CompanyInventor: Todd D. Harriett
-
Patent number: 4609591Abstract: A non-aqueous coating for glass fibers consisting of 100 percent solids formulation of organosilane, an ethylene-ethyl acrylate copolymer, a hydrogenated heterocyclic hydrocarbon thermoplastic resin, a microcrystalline wax, a viscosity-reducing agent, an antioxidizing agent, and a whitening agent. When employing glass fibers coated with the size composition of the present invention in a non-acid modified polypropylene resin, the size formulation also includes a maleic anhydride-modified polyolefin. Glass fibers coated with the size composition of this invention are suitable for use in reinforcing resinous products, particularly polypropylene, to achieve a white or translucent molded glass fiber-reinforced product.Type: GrantFiled: May 10, 1985Date of Patent: September 2, 1986Assignee: Owens-Corning Fiberglas CorporationInventors: Jean-Claude Pollet, Gordon P. Armstrong, Martin C. Flautt
-
Patent number: 4536218Abstract: Printed materials such as tickets, lottery forms, cards and contest forms, bearing a hidden message which is revealable by scratching off a covering opaque layer, are prepared by printing the message on the substrate, lithographing a protective layer such as a clear varnish or a pigmented varnish-ink over the hidden message, and then lithographing a hiding coat over the applied protective layer. The protective layer formulation and the hiding coat layer are both based upon compatible, preferably the same, film forming resin systems, and are deposited from a common solvent. The protective layer may provide a clear, colorless transparent film through which the message may be viewed, or a colored see-through layer, so that it constitutes one color layer also for the printing of other areas of the substrate.Type: GrantFiled: February 8, 1984Date of Patent: August 20, 1985Inventor: Eli A. Ganho
-
Patent number: 4534925Abstract: The present invention relates to a non-hydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite composition can be extruded in the form of a rope, rod, sheet or the like and is sufficiently tacky for adherence to a wall or conduit, floor or roof in areas of potential water flow to prevent the seepage of water through the bentonite composition. In one embodiment, the bentonite composition includes a polypropene and a polybutene and an elastomer, such as butyl rubber, having sufficient resilience to stretch or expand with the expanding bentonite upon hydration and to aid in maintaining the structural integrity and cohesiveness of the composition. In another embodiment, the composition comprises bentonite, an elastomer, and any plasticizer compatible with the elastomer.Type: GrantFiled: November 22, 1982Date of Patent: August 13, 1985Assignee: American Colloid CompanyInventor: Todd D. Harriett
-
Patent number: 4534926Abstract: The present invention relates to a nonhydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite composition can be extruded in the form of a rope, rod, sheet or the like and is sufficiently tacky for adherence to a wall or conduit, floor or roof in areas of potential water flow to prevent the seepage of water through the bentonite composition. In one embodiment, the bentonite composition includes a polypropene and a polybutene and an elastomer, such as butyl rubber, having sufficient resilience to stretch or expand with the expanding bentonite upon hydration and to aid in maintaining the structural integrity and cohesiveness of the composition. In another embodiment, the composition comprises bentonite, an elastomer, and any plasticizer compatible with the elastomer.Type: GrantFiled: April 27, 1984Date of Patent: August 13, 1985Assignee: American Colloid CompanyInventor: Todd D. Harriett
-
Patent number: 4522957Abstract: The disclosure is directed to improvements in a process for preparing curable polyolefin polymers in which a mass of dry, discrete, free-flowing particles of polyolefin polymer is tumbled in admixture with a curing agent effective to cause curing when the finished product is subjected to curing temperature, which comprises tumbling said mass in two separate and discrete steps in which essentially all of the curing agent is incorporated into said mass in the first tumbling step and equilibration between the curing agent and the polymer is effected in the second tumbling step while maintaining in both tumbling steps a temperature above the melting point of said curing agent but below both the agglomerating temperature and the curing temperature and, at least in the second tumbling step, a temperature which provides equilibration between the curing agent and the polymer; and thereafter tumble-cooling the thus-treated mass until a dry, discrete, free-flowing mass of polymer particles is obtained.Type: GrantFiled: September 3, 1982Date of Patent: June 11, 1985Assignee: A. Schulman, Inc.Inventor: Billy H. Ashley
-
Patent number: 4513132Abstract: Heat-resistant silicone block polymer with a good flexibility obtained by reaction of an organosilsesquioxane with a silicone compound or organosiloxane in the presence of a basic catalyst in an organic solvent.Type: GrantFiled: March 31, 1983Date of Patent: April 23, 1985Assignee: Hitachi, Ltd.Inventors: Fusaji Shoji, Issei Takemoto, Fumio Kataoka, Hitoshi Yokono, Tokio Isogai
-
Patent number: 4456725Abstract: A composition of an aromatic of an aromatic carbon polymer, an acrylate impact modifier and an aliphatic hydrocarbon low temperature impact modifier.Type: GrantFiled: December 20, 1982Date of Patent: June 26, 1984Assignee: General Electric CompanyInventors: Ping Y. Liu, Niles R. Rosenquist
-
Patent number: 4444938Abstract: Phenyltetralylbutane (PTB) is used to plasticize polyvinylchloride (PVC) resins. The PTB in one embodiment is prepared by refluxing tetralin an flowing condensed vapors of the tetralin over a bed of strongly acidic catalyst, which may for example be a synthetic acid "Y" type zeolite. In one embodiment, the PTB is used as a secondary plasticizer, with a primary plasticizer such as di(2-ethyl)hexyl phthalate.Type: GrantFiled: June 7, 1982Date of Patent: April 24, 1984Assignee: Sun Tech, Inc.Inventors: Eugene L. Coggins, William D. Vanderwerff
-
Patent number: 4379190Abstract: Filled thermoplastic compositions useful as sound deadening sheeting having improved tensile elongation are obtained by blending about 5-60 percent by weight of a mixture of at least two copolymers of ethylene, having specified polar comonomer contents, about 40-90 percent by weight of filler, 0-15 percent by weight of plasticizer selected from the group consisting of processing oils, polyesters, polyethers and polyether esters, and optionally modifying resins such as elastomeric polymers and certain other ethylene and propylene homo- and copolymers.Type: GrantFiled: June 15, 1981Date of Patent: April 5, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Timothy T. Schenck
-
Patent number: 4358557Abstract: The hot-melt adhesives of the present invention comprise a blend of ethylene-vinyl acetate copolymer, hydrocarbon tackifier resin, aromatic low softening point tackifying resin and paraffin wax. These hot-melt adhesive compositions provide adhesives especially useful for bonding polyethylene film to a nonwoven support. The bonds provided by this adhesive have a novel combination of properties such as good static shear lap bond strength, low elongation and good elevated temperature properties.Type: GrantFiled: March 8, 1982Date of Patent: November 9, 1982Assignee: Eastman Kodak CompanyInventor: Brenda J. Boggs