At Least One Solid Polymer Derived From Ethylenic Hydrocarbon Reactants Only Patents (Class 524/232)
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Patent number: 5604282Abstract: The present invention provides a strippable, rewettable film coating generally comprising polyvinyl polymer, polyalkyl acrylate, polyvinyl alcohol, release agents, surfactants, defoamers, dispersants, plactizicers and water. A machinable film coating mixture is also provided that is comprised of polyalkyl acrylate, release agents, surfactants, defoamers, dispersants, plactizicers and water. In another aspect, the present invention provides a heat-resistant film coating mixture comprised of polyalkyl acrylate, polyvinyl alcohol, release agents, surfactants, defoamers, dispersants, plactizicers and water.Type: GrantFiled: December 6, 1994Date of Patent: February 18, 1997Assignee: Groco Specialty Coatings CompanyInventors: George W. Grogan, Robert H. Boyd
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Patent number: 5601641Abstract: An aqueous reaction mixture having a pH of 4.5 to 5.5 of a methyl terminated siloxane emulsified polymer, a methyl triethoxysilane, a mixture of nonyl and octyl phenol derivative surfactants, fluorinated alkyl ester surfactant and synthetic ethoxylated amine surfactants, a silanol terminated polydimethylsiloxane hydroxyl terminated polybutadiene and ethanol. The reaction mixture is coated on a mold core surface and cured with heat to form a mold release surface that can be used in excess of twelve times prior to recoating.Type: GrantFiled: December 15, 1995Date of Patent: February 11, 1997Assignee: TSE Industries, Inc.Inventor: William D. Stephens
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Patent number: 5599871Abstract: This invention relates to a thermoplastic resin composition having good painting and surface-polishing properties and more particularly, to a thermoplastic resin composition that includes a polyamide, a polyamide copolymer, a thermoplastic elastomer and a fluoride polymer.Type: GrantFiled: December 29, 1994Date of Patent: February 4, 1997Assignee: Hyundai Motor CompanyInventor: Bong-Hyun Park
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Patent number: 5459186Abstract: Heat-sealable thermoplastic elastomeric films comprise from approximately 35% to about 65% of an A-B-A block copolymer wherein "A" blocks are derived from polystrene or a polystrene homolog and said "B" blocks being derived from lower alkenes and from about 25% to about 55% of an ethylene vinyl acetate copolymer, the ethylene vinyl acetate copolymer comprising approximately 28% vinyl acetate. The films are heat-sealable to various substrates including polyvinyl chloride. Once sealed to the substrate, the film may be readily peeled from the substrate by the application of a low and relatively constant peel force. A method for measuring the peel strengths of the film is disclosed. The films are especially adapted to being heat-sealed to a substrate which forms, together with the substrate a package, or multiple serially connected packages.Type: GrantFiled: December 17, 1993Date of Patent: October 17, 1995Assignee: Rexene CorporationInventor: Paul D. Gage
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Patent number: 5453459Abstract: The invention is a composition for providing a temporary coating to protect the surface of an article and a solvent free composition for rapidly removing the coating from the article. The invention also includes a method for protecting a surface of an article and a system for carrying out the process.Type: GrantFiled: July 5, 1994Date of Patent: September 26, 1995Assignee: Henkel CorporationInventor: Wilbert J. Roberts
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Patent number: 5449711Abstract: Blooming on the surface of products molded from an olefinic thermoplastic elastomer composition containing an olefinic thermoplastic elastomer and one or more additives which promotes such blooming is prevented by compounding into the elastomer one or more compounds selected from the group consisting of esters of polyhydric alcohols, alkylalkanolamines, alkylalkanolamides, fatty acid amides, higher alcohols, aliphatic amines, fatty acids and adducts of alkylene oxides to these compounds. The composition thus can be advantageously used as interior materials of automobiles and materials for electronic instruments.Type: GrantFiled: April 7, 1993Date of Patent: September 12, 1995Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Nobuo Saito, Yoshihiro Shigemori, Mitsuo Noda, Jun-ichi Itou
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Patent number: 5420185Abstract: A bow-tie tree resistant electrical insulating composition comprises 100 parts by weight of at least one polymer selected from polyolefins and ethylene copolymers, 0.005-1.0 part by weight of a metal salt of a fatty acid containing a hydroxyl group in the molecule, and 0.005-1.0 part by weight of a fatty acid or a derivative thereof.Type: GrantFiled: September 14, 1994Date of Patent: May 30, 1995Assignee: Hitachi Cable Ltd.Inventors: Kiyoshi Watanabe, Takanori Yamazaki, Hideki Yagyu, Mamoru Kanaoka, Katsutoshi Hanawa, Chuki Ikeda
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Patent number: 5387630Abstract: Disclosed is a novel polyethylene composition that is a blend of a polyethylene component having defined properties, a specific quantity of a defined tackifying resin and a very specific minute quantity of a unique amide of a fatty acid. The novel composition can be used in a process for extrusion coating at high speeds and relatively low extrusion coating temperatures with good adhesion to the substrate and dramatically improved chill roll release.Type: GrantFiled: August 31, 1993Date of Patent: February 7, 1995Assignee: Eastman Chemical CompanyInventors: Ray Edwards, Bruce W. Foster
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Patent number: 5348995Abstract: A novel amine-free antistatic agent comprising the reaction product of diethanolamine and a fatty acid or fatty acid ester, neutralized with a strong acid is disclosed, along with plastic composition treated with said antistatic composition, as well as a method for making the antistatic composition and methods for using it to produce plastic articles with antistatic properties.Type: GrantFiled: March 29, 1993Date of Patent: September 20, 1994Assignee: PPG Industries, Inc.Inventor: Barbara J. Anderson
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Patent number: 5334643Abstract: Heat-sealable thermoplastic elastomeric films comprise from approximately 35% to about 65% of an A-B-A block copolymer wherein "A" blocks are derived from polystrene or a polystrene homolog and said "B" blocks being derived from lower alkenes and from about 25% to about 55% of an ethylene vinyl acetate copolymer, the ethylene vinyl acetate copolymer comprising approximately 28% vinyl acetate. The films are heat-sealable to various substrates including polyvinyl chloride. Once sealed to the substrate, the film may be readily peeled from the substrate by the application of a low and relatively constant peel force. A method for measuring the peel strengths of the film is disclosed. The films are especially adapted to being heat-sealed to a substrate which forms, together with the substrate a package, or multiple serially connected packages.Type: GrantFiled: July 1, 1991Date of Patent: August 2, 1994Assignee: Rexene Products CompanyInventor: Paul D. Gage
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Patent number: 5326629Abstract: Novel microporous fibers and filaments are prepared from normally solid, thermoplastic, orientable, organic polymers which have reactive or reactable groups pendent from the polymer chain, employing a process which involves reactions of said pendent groups while the polymer is in an oriented condition. One of the preferred polymers is a copolymer of ethylene/acrylic acid.Type: GrantFiled: July 22, 1993Date of Patent: July 5, 1994Assignee: The Dow Chemical CompanyInventors: Walter L. Vaughn, Milton S. Wing
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Patent number: 5314752Abstract: The invention concerns a silicone-modified EPDM modified with a freeze release additive of a fatty acid amide and/or optionally, graphite having at least 85% carbon, and compounded and co-extruded onto the surface of elastomeric sponge automotive weatherstripping thereby forming a permanent skin surface on the sponge material. The resulting material has improved and desirable freeze-release and coefficient of friction properties. These improved properties eliminate the need for currently used spray coatings, resulting in manufacturing cost savings and more durable surface.Type: GrantFiled: June 3, 1993Date of Patent: May 24, 1994Assignee: Uniroyal Chemical Company, Inc.Inventors: Angela E. Bova, Donald W. Tredinnick
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Patent number: 5308904Abstract: Disclosed herein are a resin composition for a porous film or sheet, comprising:100 parts by weight of a polyolefin (A) having a density of not more than 0.930 g/cm.sup.3 and a melt index of not more than 2 g/10 min;100 to 400 parts by weight of a filler (B);1 to 100 parts by weight of a plasticizer (C) composed of a compound having an ester linkage or an amide linkage in a molecule, and having a molecular weight of not less than 100, a boiling point of not lower than 200.degree. C. and a melting point of not higher than 100.degree. C. under an ordinary pressure; and0.0001 to 0.1 part by weight of a radical generator (D);a porous film or sheet therefrom; anda process for producing the same.Type: GrantFiled: July 10, 1992Date of Patent: May 3, 1994Assignee: Mitsubishi Kasei CorporationInventors: Toshio Fujii, Akihiko Sakai, Tasuku Suzuki
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Patent number: 5298555Abstract: A stable, water-in-oil emulsion comprising an aqueous phase containing a water soluble polymer and an oil phase containing a partially esterified lower N,N-dialkanol fatty amine emulsifier, the ratio of the aqueous phase to the oil phase ranging from about a 2:1 to about 3:5:1 and the polymer content of the emulsion being at least 20%, by weight based on the total weight of the emulsion, wherein said oil phase also contains a second emulsifier comprising a nonionic, reaction product of ethylene oxide and a long chain compound containing a reactive hydroxyl and/or carboxyl group and having an HLB above 5 but less than 14, the total weight of the emulsifiers comprises about 1-5% of the emulsion, and the second emulsifier constitutes from about 10 to 150% of the weight of the fatty amide and contains less than 0.1 weight percent of sorbitan, sorbitol, mixture thereof and derivatives thereof.Type: GrantFiled: July 30, 1992Date of Patent: March 29, 1994Assignee: American Cyanamid CompanyInventors: Michael N. O'Connor, Lesley J. Barker, Roderick G. Ryles
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Patent number: 5286525Abstract: A method for improving the printing of polyolefins with water-based inks by incorporating into the polyolefin an effective amount of N-ethanol erucamide or N-ethanol oleamide. Optionally a finely divided inorganic material can be added with the N-ethanol erucamide or N-ethanol oleamide.Type: GrantFiled: May 5, 1993Date of Patent: February 15, 1994Assignee: Witco CorporationInventors: Bing-Lin Chen, James A. Barker
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Patent number: 5246994Abstract: A rubber composition containing (A) a mixture obtained by mixing (a1) 100 parts by weight of a highly saturated, ethylenically unsaturated nitrile-conjugated diene copolymer rubber whose copolymer chain contains not more than 30% by weight of conjugated diene units, and (a2) from 10 to 100 parts by weight of an ethylenically unsaturated monomer containing at least one carboxyl group, at least a proportion of the at least one carboxyl group being metal substituted such that a molar ratio of the at least one carboxyl group to the metal falls within a range of from 1/0.5 to 1/3; (B) an organic peroxide; and (C) a fatty acid amide, from 0.2 to 15 parts by weight of the (B) organic peroxide and from 0.5 to 20 parts by weight of the (C) fatty acid amide being added to 100 parts by weight of the (A) mixture.Type: GrantFiled: October 1, 1992Date of Patent: September 21, 1993Assignees: Tokai Rubber Industries, Ltd., Nippon Zeon Co., Ltd.Inventors: Akihiro Shibahara, Takao Sugiura, Tetsuo Ohyama, Yasunori Iwasaki
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Patent number: 5232966Abstract: A method for improving the printing of polyolefins with water-based inks by incorporating into the polyolefin an effective amount of N-ethanol erucamide or N-ethanol oleamide. Optionally a finely divided inorganic material can be added with the N-ethanol erucamide or N-ethanol oleamide.Type: GrantFiled: February 6, 1992Date of Patent: August 3, 1993Inventors: Bing-Lin Chen, James A. Barker
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Resin composition for articles molded by injection molding for photographic photosensitive materials
Patent number: 5225466Abstract: Resin compositions for use in molding articles by injection molding comprise 50 to 90 wt. % of polypropylene resin, 9 to 48.5 wt. % of linear low density polyethylene resin, 0.05 to 15 wt. % of light-shielding material, 0.05 to 40 wt. % of reinforcing material, 0.05 to 6 wt. % of lubricant, and oxidation inhibitor present in an amount of less than 0.5 wt. %. These resin compositions display very little mold shrinkage and have excellent size accuracy. They also have outstanding rigidity, physical strength, heat resistance, wear resistance and slipping characteristics. They are readily molded by injection molding, and are relatively inexpensive. Articles molded from the resin compositions according to the invention are well adapted for use as photographic photosensitive materials.Type: GrantFiled: March 2, 1988Date of Patent: July 6, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Mutsuo Akao -
Patent number: 5218023Abstract: A rubber composition comprising a rubbery polymer, carbon black and a processing aid is described wherein the processing aid is a liquid diene polymer having a weight average molecular weight of about 5,000 to 140,000 and having an atomic group having a bond represented by the formula:>C.dbd.N.sup..crclbar. <,which is bonded to the terminal of the polymer chain, and the amount of the liquid diene polymer is 1 to 100 parts by weight per 100 parts by weight of the rubbery polymer. The liquid diene polymer is usually prepared by reacting an anionic living liquid diene polymer with a compound having in the molecule a bond represented by the formula: ##STR1## in which M represents an oxygen or sulfur atom.Type: GrantFiled: March 29, 1991Date of Patent: June 8, 1993Assignee: Nippon Zeon Co., Ltd.Inventors: Hiroyoshi Horikawa, Shuichi Akita, Hiroyuki Watanabe
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Patent number: 5218024Abstract: A water- and solvent-free release agent for use in the production of articles of polyurethane foam contains one or more polyenes as the main constituent and also in addition if required a consistency adjuster, an antioxidant, accelerators and/or stabilizers. To apply water- and solvent-free release agents to the surfaces of polyurethane-foam moulding dies the misting or atomization of the release agent is effected with a device with an electrostatic charge, by which the release agent particles are given an electrostatic charge when passing through the exit nozzle.Type: GrantFiled: February 28, 1990Date of Patent: June 8, 1993Inventors: William Krug, Wolfgang Fischer
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Patent number: 5162418Abstract: The water leaching of ammonium polyphosphate from compositions comprising organic polymer and particles of ammonium polyphosphate is reduced if the ammonium polyphosphate is surface-modified with at least one nonionic surfactant selected from the group consisting of: (a) fatty alcohol containing from about 12 to about 32 carbon atoms, (b) alkylene oxide adduct of such fatty alcohol, (c) fatty acid amide containing from about 12 to about 32 carbon atoms in the acyl group thereof, (d) copolymer of ethylene oxide and propylene oxide, and (e) a mixture thereof, wherein the surfactant has an HLB less than about 10.Type: GrantFiled: October 29, 1990Date of Patent: November 10, 1992Assignee: PPG Industries, Inc.Inventors: Paritosh M. Chakrabarti, Kenneth J. Sienkowski
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Patent number: 5100930Abstract: Disclosed herein is a food container of a resin composition composed of a polyolefin and an inorganic filler, said resin composition containing (i) a phenolic antioxidant and (ii) a slip agent and/or antistatic agent, said phenolic antioxidant being at least one kind selected from .beta.-(4-hydroxy-3-t-butyl-5-alkylphenyl)propionic acid esters, hindered phenols having an isocyanuric acid ester, 1,3,5-tris(3,5-di-t-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, specific phenol compounds, and 6-hydroxychroman compounds. The food container has a low level of offensive odors and discoloration.Type: GrantFiled: June 28, 1990Date of Patent: March 31, 1992Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshiharu Fukui, Kazuhisa Kuroda
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Patent number: 5077328Abstract: A filler-containing polyolefin resin composition comprising a resin composition composed of a polyolefin resin and an inorganic filler exhibits an excellent thermal stability despite the presence of the inorganic filler by adding thereto a particular phenolic antioxidant, an amide or monoglyceride compound of a higher fatty acid and a particular metal inactivating agent.Type: GrantFiled: January 25, 1991Date of Patent: December 31, 1991Assignee: Asahi Denka Kogyo K.K.Inventors: Tohru Haruna, Takashi Takeuchi
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Patent number: 4990184Abstract: Water reducible coating compositions comprising: an oxidized slack wax, paraffin wax or petrolatum; a low molecular weight polyethylene, polybutene, or polypropylene; naphthenic or paraffinic oil; a salt of a sulfonic acid, a nitrate, a nitrite, a borate or an amine soap of a fatty acid; a mixture of mineral spirits and ethylene glycol monopropyl ether; an unsaturated fatty acid (preferably oleic acid) and a fugitive amine (preferably 2-amino-2-methyl-1-propanol); and water are disclosed which provides improved corrosion resistant coatings for ferrous alloys.Type: GrantFiled: April 12, 1989Date of Patent: February 5, 1991Assignee: Ashland Oil, Inc.Inventors: Daniel J. Dotson, Stephen E. See
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Patent number: 4968469Abstract: Molded articles such as gaskets for container caps are made from a thermoplastic composition at high speed, for instance above 100 per minute, by continuously cutting a continuous supply of molten thermoplastic composition into molten pieces and transferring the molten pieces to a molding position at which they are molded into the gaskets or other desired articles, and the composition includes a melt-release material that continuously replenishes a melt-release layer on the surfaces by which the molten composition is cut and transferred to the molding position.Type: GrantFiled: February 16, 1990Date of Patent: November 6, 1990Assignee: W. R. Grace & Co.-Conn.Inventor: Steven A. C. White
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Patent number: 4954547Abstract: Fatty acids of fatty alkanolamides improve the shear stability of water-in-oil emulsions of acrylic acid polymers. Other advantages are afforded when fatty acids are used with these emulsions.Type: GrantFiled: February 16, 1988Date of Patent: September 4, 1990Assignee: Nalco Chemical CompanyInventor: Merle L. Branning
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Patent number: 4931508Abstract: NR/EPDM co-cured rubber blends with sulfur and organic peroxide used together as the co-curing agents to achieve ozone resistant, high tensile property rubber compositions. Sulfur accelerators MBTS and DPG are also employed in the curing process. NR/EPDM blends of from 70/30 to 55/45 are cured in an air cure process with sulfur in the range of 0.64-1.6 phr and with organic peroxide in the range of 0.6-1.6 phr.Type: GrantFiled: November 16, 1989Date of Patent: June 5, 1990Assignee: Servus Rubber Company, Inc.Inventor: Singa D. Tobing
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Patent number: 4927872Abstract: A monolayer polypropylene film obtained by melt extrusion from a composition comprising 100 parts by weight of a crystalline polypropylene and, incorporated therein, a slipping agent {A} having a melting point of 100.degree. to 125.degree. C. and a slipping agent {B} having a melting point of 70.degree. to 90.degree. C. in a total amount of 0.05 to 1.0 part by weight, the initial coefficient of friction of said film being 0.7 or below and the coefficient of friction after heating at 60.degree. C. being 1.0 or below; and a multilayer film composed of said polypropylene film layer having said composition and said characteristics and a substrate material layer.Type: GrantFiled: April 3, 1989Date of Patent: May 22, 1990Assignee: Sumitomo Chemical Company, LimitedInventors: Masahiro Kakugo, Seiichiro Ima
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Patent number: 4897437Abstract: Ethylene-acrylic acid type interpolymer compositions and films having increased slip and reduced block. A compositionally uniform interpolymer is compounded with at least one amide additive of the formula R.sub.1 --CO--NH--R.sub.2 in which R.sub.1 is selected from saturated alkyl groups having from 13 to 25 carbon atoms and mono-olefinically unsaturated alkyl groups having from 17 to 23 carbon atoms and in which R.sub.2 is selected from saturated alkyl groups having 14 to 26 carbon atoms and mono-olefinically unsaturated alkyl groups having from 18 to 24 carbon atoms; and optionally, finely divided inorganic. In another embodiment, a compositionally uniform or a compositionally non-uniform interpolymer is compounded with: (i) about 0.025-1 weight percent of saturated secondary fatty acid amide; (ii) about 0.025-1 weight percent of unsaturated or mixed unsaturated secondary fatty acid amide; and optionally (iii) about 0.025-1.5 weight percent of finely divided inorganic.Type: GrantFiled: January 22, 1988Date of Patent: January 30, 1990Assignee: The Dow Chemical CompanyInventors: Osborne K. McKinney, Alfred F. Castello, Michael E. Rowland
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Patent number: 4882387Abstract: NR/EPDM co-cured rubber blends with sulfur and organic peroxide used together as the co-curing agents to achieve ozone resistant, high tensile property rubber compositions. Sulfur accelerators MBTS and DPG are also employed in the curing process. NR/EPDM blends of from 70/30 to 55/45 are cured in an air cure process with sulfur in the range of 0.64-1.6 phr and with organic peroxide in the range of 0.6-1.6 phr.Type: GrantFiled: May 13, 1988Date of Patent: November 21, 1989Inventor: Singa D. Tobing
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Patent number: 4839234Abstract: A monolayer polypropylene film obtained by melt extrusion from a composition comprising 100 parts by weight of a crystalline polypropylene and, incorporated therein, a slipping agent [A] having a melting point of 100.degree. to 125.degree. C. and a slipping agent [B] having a melting point of 70.degree. to 90.degree. C. in a total amount of 0.05 to 1.0 part by weight, the initial coefficient of friction of said film being 0.7 or below and the coefficient of friction after heating at 60.degree. C. being 1.0 or below; and a multilayer film composed of said polypropylene film layer having said composition and said characteristics and a substrate material layer.Type: GrantFiled: May 4, 1987Date of Patent: June 13, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Masahiro Kakugo, Seiichiro Ima
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Patent number: 4833017Abstract: A thermoplastic stretch wrap film exhibits a significant level of cling on one surface but no appreciable cling force on the other, the latter surface exhibiting a slide property when in contact with a film or like surface due to the presence of particulate antiblock agent mechanically bonded thereto. The film can be used to overwrap one or a group of articles to form a unitized packaged unit employing any of the known and conventional tension-wrapping techniques. Because of its one-sided cling and slide capabilities, pallet loads overwrapped with the film and in mutual contact avoid film tearing or destruction when the pallet loads are separated from each other.Type: GrantFiled: April 17, 1987Date of Patent: May 23, 1989Assignee: Mobil Oil CorporationInventor: Gordon L. Benoit
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Patent number: 4831069Abstract: A spinning solution for acrylonitrile polymers is disclosed, which has a viscosity of 30 to 520 poises (at 50.degree. C.) and which comprises an acrylonitrile polymer having a reduced viscosity of not less than 4.0, a solvent, and water, wherein the water concentration and the polymer concentration fall within the range in the drawing surrounded by straight lines connecting point A (1 wt % and 30 wt % respectively), point B (1 wt % and 10 wt % respectively), and point C (10 wt % and 10 wt % respectively). The spinning solution exhibits satisfactory spinnability in spite of its high polymer concentration and provides void-free acrylonitrile fibers having a highly circular cross-section and excellent mechanical strength.Type: GrantFiled: November 16, 1987Date of Patent: May 16, 1989Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Teruhiko Sugimori, Yoshifumi Furutani, Yoshinobu Shiraishi, Toshiyuki Yasunaga
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Patent number: 4824889Abstract: A hot melt adhesive comprising a blend of:from about 10% by weight to about 90% by weight of a blend of from 10% by weight to 90% by weight of an at least partially crystalline copolymer of butene-1 and ethylene, wherein the ethylene content is from about 1 mole percent to about 20 mole percent of said copolymer, and from 10% by weight to 90% by weight of a butene-1 homopolymer;from about 10% by weight to about 90% by weight of a tackifying resin; andfrom about 0.1 phr to about 0.5 phr of an antioxidizing agent.Type: GrantFiled: October 30, 1987Date of Patent: April 25, 1989Assignee: Shell Oil CompanyInventor: Simon Mostert
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Patent number: 4806362Abstract: Aqueous polyethylene dispersions, suitable for improving the surface characteristics of glass, are disclosed. The dispersions contain 40 to 100 percent by weight, based on the polyethylene, of a mixture of(a) amine oxides of the general formula ##STR1## wherein R.sup.1 is alkyl with 7 to 17 carbon atoms;n is 2 or 3 and(b) the salt of an amine of the general formulaR.sup.2 N[(C.sub.2 H.sub.4 O).sub.m H].sub.2 IIwith a physiological safe carboxylic acid, whereinR.sup.2 is alkyl with 8 to 18 carbon atoms andthe sum of the units m is 20 to 100,the components (a) and (b) being present in a ratio by weight of 4:1 to 1:1.The dispersions may be obtained by stirring a melt of the polyethylene, which contains component (b), into water, which contains component (a).Type: GrantFiled: July 6, 1987Date of Patent: February 21, 1989Assignee: Th. Goldschmidt AGInventor: Erich Ruf
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Patent number: 4785042Abstract: The object of the present invention is to provide a polyethylene resin composition which is improved in anti-blocking and slipping properties, and further in antistatic properties without deteriorating the excellent properties of polyethylene, such as transparency and heat sealability.The inventive polyethylene resin composition comprises(A) polyethylene,(B) a zeolite or an anhydrous amorphous aluminosilicate having the basic particle characteristics of zeolite as prepared by acid-treating zeolite,(C) fatty acid amide having a melting point of not more than 130.degree. C., and(D) an antistatic agent.Type: GrantFiled: November 10, 1987Date of Patent: November 15, 1988Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yutaka Azuma, Yoshikatsu Tanaka
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Patent number: 4775711Abstract: A molding elastomeric composition having superior flexibility, high-impact properties, high mechanical strengths (particularly, flexural modulus), good moldability (particularly, mold-release characteristics) and appearance of the resulting molded products is provided, the composition being obtained (a) by blending a specified proportion of a specified hydrogenated styrene-butadiene-styrene block copolymer having a specified solution viscosity, with a propylene copolymer of a propylene-ethylene block copolymer (I) with a crystalline propylene-ethylene random copolymer (II) in a specified blending ratio; or (b) by blending the specified proportion of the hydrogenated material and a specified proportion of a non-crystalline ethylene-.alpha.-olefin random copolymer with the propylene copolymer of (I) with (II); or (c) by blending a specified proportion of the propylene copolymer of (I) with (II), a specified proportion of the hydrogenated material, a specified proportion of the non-crystalline ethylene-.alpha.Type: GrantFiled: April 2, 1987Date of Patent: October 4, 1988Assignee: Chisso CorporationInventors: Takanobu Kawamura, Tamihiro Oohashi, Shinji Chiku
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Patent number: 4751262Abstract: Ethylene-acrylic acid type interpolymer compositions and films having increased slip and reduced block. A compositionally uniform interpolymer is compounded with at least one amide additive of the formula R.sub.1 -CO-NH-R.sub.2 in which R.sub.1 is selected from saturated alkyl groups having from 13 to 25 carbon atoms and mono-olefinically unsaturated alkyl groups having from 17 to 23 carbon atoms and in which R.sub.2 is selected from saturated alkyl groups having 14 to 26 carbon atoms and mono-olefinically unsaturated alkyl groups having from 18 to 24 carbon atoms; and optionally, finely divided inorganic. In another embodiment, a compositionally uniform or a compositionally non-uniform interpolymer is compounded with: (i) about 0.025-1 weight percent of saturated secondary fatty acid amide; (ii) about 0.025-1 weight percent of unsaturated or mixed unsaturated secondary fatty acid amide; and optionally (iii) about 0.025-1.5 weight percent of finely divided inorganic.Type: GrantFiled: July 2, 1987Date of Patent: June 14, 1988Assignee: The Dow Chemical CompanyInventors: Osborne K. McKinney, Alfred F. Castello, Michael E. Rowland
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Patent number: 4749736Abstract: This invention relates to a crystalline polyamide corporation having dispersed therein a nucleating agent composed of one or more finely divided inorganic materials, one or more fatty acid amides and one or more low molecular weight polymers selected from the group consisting of polyolefins, polyoxides and polsulfides.Type: GrantFiled: October 20, 1986Date of Patent: June 7, 1988Assignee: Allied CorporationInventors: Yash P. Khanna, Georgette Chomyn, Asis Banerjie, Annemarie C. Reimschuessel
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Patent number: 4746697Abstract: An antistatic resin composition prepared by dissolving at least one of lithium nitrate and lithium chloride in cold or hot water, adding a molten surface active agent thereto, mixing them together to give a homogeneous mixture, and blending the same with a molten thermoplastic resin either before or after cooling and solidification. The composition is highly antistatic and gives a film having a high degree of transparency.Type: GrantFiled: March 25, 1986Date of Patent: May 24, 1988Assignee: Kohjin Co., Ltd.Inventors: Naoya Yamaguchi, Sigeyosi Koyabu, Tomoji Mizutani
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Patent number: 4701487Abstract: There is disclosed an extrusion processing aid composition for the extrusion of polyolefins, particularly linear low density polyethylene and high density polyethylene films or sheets; polyolefin compositions containing said processing aid and a process of extruding polyolefins using said processing aid. The processing aid is a composition comprising (a) an amide of a saturated or unsaturated carboxylic acid or a saturated or unsaturated alkylene bis-amide of a saturated or unsaturated dicarboxylic acid; (b) an aliphatic hydrocarbon polymer mixture having a molecular weight of from about 400 to about 50,000; and (c) an oxygen-containing high density, low molecular weight ethylene polymer.Type: GrantFiled: June 6, 1983Date of Patent: October 20, 1987Assignee: Petrolite CorporationInventor: John Hakim
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Patent number: 4675122Abstract: Combined antiblocking agent and lubricant concentrate based on polyolefin, which contains diatomaceous earth, precipitated silica and/or silica gel as the antiblocking agent, one or more amides of unsaturated C.sub.18 -C.sub.22 -fatty acids and optionally further conventional additives and which is characterized in that it contains 5 to 35% by weight of antiblocking agent and 5 to 30% by weight of lubricant. The high lubricant concentration in the combination concentrate according to the invention is obtained in that the antiblocking agent and the lubricant are incorporated into the polyolefin in the form of a homogeneous, finely divided mixture. The antiblocking agent serves as a carrier for the micronized lubricant, i.e. the lubricant is adsorbed on the large surface of the antiblocking agent, so that the "flowing away" of the lubricant otherwise observed in the case of high lubricant concentrations during incorporation into the polyolefin is avoided.Type: GrantFiled: October 11, 1984Date of Patent: June 23, 1987Assignee: Grace G.m.b.H.Inventors: Georg Luers, Richard Sobottka
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Patent number: 4663375Abstract: A process for producing a thermoplastic resin molding which comprises adding to a thermoplastic resin an organic compound which is compatible with said thermoplastic resin to form a homogeneous phase at a molten state of said thermoplastic resin and causes phase separation by cooling, molding the composition by melting, and solidifying it by cooling; and the molding thus obtained.Type: GrantFiled: May 10, 1985Date of Patent: May 5, 1987Assignee: Mitsubishi Petrochemical Co., Ltd.Inventor: Yutaka Tamura
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Patent number: 4647608Abstract: A method for the production of polyolefin resins containing both an organic amide and a zinc compound. One composition is prepared which contains the polyolefin and the amide, but which does not contain the zinc compound. Another composition is prepared which contains the polyolefin and the zinc compound, but which does not contain the amide. The two compositions are extruded separately, and the individual resins so obtained are blended to form the desired resin composition containing both the amide and the zinc compound, thereby preventing the zinc stearate from catalyzing the dehydration of the aliphatic amide to a nitrile.Type: GrantFiled: March 21, 1986Date of Patent: March 3, 1987Assignee: The Dow Chemical CompanyInventor: John G. Green
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Patent number: 4645792Abstract: The crystallization from the melt of an elastomeric stereo-regular butene-1 polymer composition is promoted by adding a small amount of a nucleating agent selected from the group consisting of stearamide; N,N'-ethylene-bis-stearamide; 1-napthalene acetamide; benzamide; low molecular weight high density polyethylene and isotactic polypropylene.Type: GrantFiled: February 19, 1985Date of Patent: February 24, 1987Assignee: Shell Oil CompanyInventor: Ananda M. Chatterjee
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Patent number: 4619959Abstract: A process for producing a styrene-base resin having improved moldability and a good hue by continuously adding a specific higher fatty acid amide in a dissolved or molten state, and/or a mixture of a specific higher fatty acid amide and a specific metallic soap in a molten state, to a styrene-base resin in the course of its production by continuous bulk or solution polymerization. The above process is particularly effective for rubber-modified styrene-acrylonitrile resins.Type: GrantFiled: May 24, 1985Date of Patent: October 28, 1986Assignees: Mitsui Toatsu Chemicals, Incorporated, Toyo Engineering CorporationInventors: Tetsuyuki Matsubara, Norifumi Ito, Kazuo Sugazaki, Kouzo Ichikawa, Mune Iwamoto, Toshihiko Ando
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Patent number: 4611019Abstract: The addition of small amounts of selected polyamides or polyesters to plasticized, melt extrudable polyvinyl alcohol homopolymer provides a composition with lower permeability to oxygen and other fixed gases.Type: GrantFiled: June 17, 1985Date of Patent: September 9, 1986Inventors: H. Harald Lutzmann, Gerald W. Miller
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Patent number: 4594211Abstract: A thin polyolefine based film, having a thickness of from about 15 to about 200 microns, which is perfectly non-transparent in spite of its low thickness. The film is composed of polyolefine as a homopolymer, an ethylene-vinyl acetate copolymer, and a pigment filler such as titanium dioxide as rutile, and aluminium powder. Color pigments and dispersing agents may also be present. The film is made by extrusion. It is used for table-clothes, book covers, protective sheets, wallpaper decoration, and, in pleated state, for flowerpot covers.Type: GrantFiled: November 5, 1984Date of Patent: June 10, 1986Inventor: Dietrich Mohnhaupt
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Patent number: 4594213Abstract: A method for reducing the incidence of lensing in films formed from a granular linear low density ethylene hydrocarbon copolymer resin by substituting silica alumina ceramic microspheres for all or part of the inorganic antiblock agent normally used in said compositions.Type: GrantFiled: September 25, 1984Date of Patent: June 10, 1986Assignee: Union Carbide CorporationInventor: George E. Ealer
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Patent number: 4585820Abstract: The invention relates to a structurally viscous thickener which contains a copolymer of acrylic acid and acrylamide, a polyacrylic acid and optionally a solvent, emulsifiers, a neutralizing agent and a deaerator as additional components. The thickener may be in the form of a water-in-oil emulsion and is particularly suitable for use in printing pastes for dyeing and printing fibre material, especially textile fabrics.Type: GrantFiled: May 30, 1985Date of Patent: April 29, 1986Assignee: Ciba-Geigy CorporationInventors: Raymond Defago, Wolfgang Sutterlin