Wax Having Melting Point Above 120 Deg. F (49 Deg. C) Patents (Class 524/489)
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Patent number: 5034454Abstract: Disclosed herein are crosslinkable water-dispersible acrylic copolymers which are prepared by free-radical initiated polymerization of ethylenically unsaturated monomers containing independently an active hydrogen group, a carboxyl group and a sulfonic group, wherein the polymerization is conducted in the presence of a wax. In combination with curing agents, the crosslinkable compositions are particularly useful in imparting markedly improved flow to dip coatings.Type: GrantFiled: March 3, 1989Date of Patent: July 23, 1991Assignee: PPG Industries, Inc.Inventors: Rudolf Maska, David T. McKeough, David L. Holzinger, Susan D. Klejsmit
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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.
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Patent number: 5021499Abstract: Hot melt adhesives containing petroleum resin tackifiers which are prepared by a process wherein (1) a C.sub.8 -- and/or C.sub.9 aromatic unsaturated hydrocarbon-containing feed (optionally containing up to 18 wt. % of C.sub.4 or C.sub.5 unsaturated aliphatic hydrocarbons) is first polymerized completely and thereafter a C.sub.5 -aliphatic unsaturated hydrocarbon-containing feed is added, polymerization continued and the reactor effluent stripped to obtain the resin. The order of polymerization may be reversed.Type: GrantFiled: July 9, 1990Date of Patent: June 4, 1991Assignee: Exxon Research and Engineering CompanyInventors: Chiaki Tochinai, Tadanao Kohara, Sadayoshi Budo, Hiroaki Masuda, Takayoshi Yoshida
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Patent number: 5010126Abstract: A hot melt wax composition and process for producing said hot melt wax composition are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a blend of a recrystallized heavy intermediate wax, a polymeric hydrocarbon compound, a tackifier resin and a phenolic anti-oxidant.Type: GrantFiled: June 25, 1990Date of Patent: April 23, 1991Assignee: Conoco Inc.Inventor: Richard L. Jones
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Patent number: 5010123Abstract: Stabilizers for chlorine-containing olefin polymers containing Ca complexes of 1,3-diketones, hydrocarbon waxes and esters and/or partial esters of saturated, straight-chain C.sub.12 -C.sub.34 monocarboxylic acids, in conjunction with zinc salts of saturated, straight-chain C.sub.8 -C.sub.22 monocarboxylic acids and esters of phosphorous acid, provide the polymers with excellent properties in regard to processibility and temperature stability.Type: GrantFiled: April 4, 1989Date of Patent: April 23, 1991Assignee: Neynaber Chemie GmbHInventors: Kurt Worschech, Peter Wedl, Erwin Fleischer, Frido Loeffelholz, Manfred Jaeckel
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Patent number: 5006583Abstract: Irregular shaped particles of cross-linked copolymer of styrene-divinylbenzene in which essentially 90% or more of the particles pass through a 100 mesh screen (U.S. Sieve Series) and essentially 50% pass through a 200 mesh screen (U.S. Sieve Series) is produced by high speed attrition milling of relatively inexpensive large-sized copolymer beads. The resulting particles are irregularly shaped cross-linked copolymer particles which are desirable and useful as a filler material for investment casting waxes. The small-sized irregularly-shaped cross-linked copolymer beads produced by high speed attrition milling essentially eliminate any "orange peel" effect on wax pattern surface and also results in improved packing of the wax composition thereby producing high quality precision parts more readily than heretofore possible.Type: GrantFiled: August 15, 1988Date of Patent: April 9, 1991Assignee: M. Argueso & Co., Inc.Inventor: Peter G. Argueso
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Patent number: 5002989Abstract: The present invention is a formulated barrier composition containing tetrasodium pyrophosphate or magnesium hydroxide, high density polyethylene, epoxidzed vegetable oil, oxidized polyolefin and a paraffin or polyolefin wax. The composition has a substantially lower oxygen permeability than existing compositions and is at least equally extrudable.Type: GrantFiled: September 1, 1989Date of Patent: March 26, 1991Assignee: The Dow Chemical CompanyInventors: John A. Naumovitz, Steven R. Jenkins, Mark J. Hall, Stephen R. Betso
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Patent number: 5001179Abstract: Recyclable hot melt adhesive compositions suitable for plastic bonding may be prepared from styrene-ethylene-butylene-styrene tri-block and/or styrene-ethylene-butylene di-block copolymers which are tackified with at least one hydrogenated resin based on alpha-methyl styrene, vinyl toluene, styrene, coumarone-indene, dicyclopentadiene or mixtures thereof, optionally containing small amounts of white mineral oil or similar diluent. In addition, the adhesive may or may not include minor amounts of the above-described pure monomer resins (specifically composed of styrene, alpha methyl styrene or vinyl toluene or mixtures thereof) in their non-hydrogenated form to serve as end block reinforcing resins.Type: GrantFiled: January 13, 1989Date of Patent: March 19, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Thomas F. Kauffman, Paul P. Puletti
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Patent number: 4996259Abstract: Aqueous synthetic wax dispersions which contain, as an essential component of the solid substance, a partially or completely neutralized copolymer of a C.sub.2 -C.sub.4 -olefin and an unsaturated mono- or dicarboxylic acid or dicarboxylic anhydride are prepared by neutralizing and dispersing the solid substance in an aqueous medium at above the melting point of the copolymer, by a method in which the processes of neutralization and of dispersion are carried out in one extruder or in a plurality of extruders connected in series.Type: GrantFiled: August 23, 1989Date of Patent: February 26, 1991Assignee: BASF AktiengesellschaftInventors: Gernot Koehler, Juergen Schmidt-Thuemmes, Norbert Hasenbein, Lothar Schlemmer, Wolfram Dietsche
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Patent number: 4994516Abstract: Hot melt adhesives comprising ethylene/vinyl acetate copolymer, wax, and a resin containing 5 to 80 wt. % of units derived from olefinically unsaturated aromatic compounds, 5 to 80 wt. % of units derived from C.sub.5 or C.sub.6 olefines or diolefines or a mixture thereof, and from 7 to 45% of units derived from a terpene. The hot melt adhesive composition has improved color and compatibility over ethylene/vinyl acetate copolymer and wax blends containing resins of significant portions of cyclopentadiene or dicyclopentadiene. The hot melt adhesive of the invention also show improved adhesive properties on substrate such as glass and aluminum.Type: GrantFiled: April 3, 1989Date of Patent: February 19, 1991Assignee: Exxon Research & Engineering CompanyInventor: Quoc Luvinh
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Patent number: 4992502Abstract: Solid correction compositions useful in the form of a stick for correcting markings. The compositions include an opacifying pigment dispersed in a solid mixture of selected first and second waxes and a compatible film forming polymeric hardening material. The stick is rubbed over the marking to be corrected to deposit an adherent film which obscures the marking and can receive and retain a corrected marking.Type: GrantFiled: August 14, 1989Date of Patent: February 12, 1991Assignee: The Gillette CompanyInventors: Rachel M. Loftin, John Thompson
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Patent number: 4965306Abstract: Hot melt wax compositions and a process for producing said hot melt wax compositions are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a mixture of a fully refined paraffin wax, a petroleum wax selected from the group consisting of a recrystallized heavy intermediate wax, a microcrystalline wax and mixtures thereof, a polymeric hydrocarbon compound, a tackifier resin and optionally, a phenolic anti-oxidant.Type: GrantFiled: February 6, 1989Date of Patent: October 23, 1990Assignee: Conoco Inc.Inventor: Richard L. Jones
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Patent number: 4965305Abstract: A hot melt wax composition and process for producing said hot melt wax composition are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a blend of a recrystallized heavy intermediate wax, a polymeric hydrocarbon compound, a tackifier resin and a phenolic anti-oxidant.Type: GrantFiled: November 30, 1988Date of Patent: October 23, 1990Assignee: Conoco Inc.Inventor: Richard L. Jones
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Patent number: 4942193Abstract: A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer which contains wax.Type: GrantFiled: October 11, 1988Date of Patent: July 17, 1990Assignee: PPG Industries, Inc.Inventors: Ellor J. Van Buskirk, Rudolf Maska
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Patent number: 4939197Abstract: A composition for injection molding a ceramic powder to make ceramic shapes is described. The composition comprises a ceramic powder and a binder system. The binder system comprises a distilled thermosetting polycarbosilane containing from about 0.4 to about 0.7 weight percent of a cross-linking inhibitor, a surfactant, and with or without a lubricant. The cross-linking inhibitor is selected from the group consisting of p-benzoquinone, benzophenone, and mixtures thereof.Type: GrantFiled: October 3, 1988Date of Patent: July 3, 1990Assignee: GTE Laboratories IncorporatedInventor: Sophia R. Su
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Patent number: 4939036Abstract: Lamination of a tufted, primary carpet backing to a secondary backing is conducted using a composite hot melt adhesive in sheet form. The composite adhesive overcomes the unfavorable temperature-viscosity gradient within the carpet structure during the lamination process, yielding tufted pile carpets with good tuft encapsulation, tuft bind strength and delamination strength. Also disclosed are hot melt adhesive compositions suitable for use in sheet form in such a process.Type: GrantFiled: July 6, 1989Date of Patent: July 3, 1990Assignee: Amoco CorporationInventor: Robert A. Reith
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Patent number: 4912010Abstract: A process for producing a toner comprising:heating a monomer composition containing at least a polymerizable monomer and a release agent to a temperature not lower than the melting point or the softening point of said release agent todissolve the release agent in the polymerizable monomer and therebypreparing a monomer composition in which the release agent is dissolved;cooling the monomer composition to a temperature lower than the melting point or the softening point of the release agent to precipitate said release agent and therebypreparing a monomer composition containing the precipitated releasing agent particles having a number average size of 0.5 to 5 .mu.m;granulating in an aqueous dispersion medium the monomer composition to prepare a particle;carrying out suspension polymerization of the particle of the monomer composition at a temperature lower than the melting point or the softening point of the release agent.Type: GrantFiled: June 30, 1989Date of Patent: March 27, 1990Assignee: Canon Kabushiki KaishaInventors: Hiromi Mori, Satoshi Matsunaga, Kuniko Kobayashi, Yoshihiko Hyosu
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Patent number: 4900770Abstract: The present invention relates to the hot melt type seal agent for adhering and sealing a head lamp of a vehicle, wherein a lens and a housing are integrally one unit. The necessary component materials of the hot melt type seal agent of the present invention include a mixture produced by butyl rubber, SEBS block copolymer and olefin with high softening point. The hot melt type seal agent of the present invention withstands temperature changes in the head lamp and the gas pressure that is filled therein. Consequently, good adhesion, waterproof and high gas-tight performances are achieved.Type: GrantFiled: July 19, 1988Date of Patent: February 13, 1990Assignee: Aica Kogyo Co., Ltd.Inventors: Atsushi Tomita, Hidekatsu Sumi
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Patent number: 4898902Abstract: A binder composition for injection molding of at least one of metal powder and ceramic powder which comprises polyoxyethylene/polyoxypropylene condensation polyether as the main component together with from 10 to 100 parts by weight of at least one auxiliary component selected from the group consisting of natural waxes, synthetic waxes, fatty acids and esters per 100 parts of said polyoxyethyene/polyoxypropylene condensation polyether.Type: GrantFiled: June 27, 1988Date of Patent: February 6, 1990Assignees: Adeka Fine Chemical Co., Ltd., Asahi Denka Kogyo Kabushiki KaishaInventors: Tomoaki Nagai, Hideyuki Yamanashi, Hideo Hachimori
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Patent number: 4892903Abstract: An elastic fiber or film prepared from a composition comprising at least one block copolymer containing at least two polymeric blocks containing predominantly monoalkenyl aromatic hydrocarbon monomer units having a weight-average molecular weight within the range from about 4,000 to about 50,000 and at least one polymeric block containing predominantly hydrogenated conjugated diolefin monomer units having a weight-average molecular weight within the range from about 10,000 to about 200,000, a relatively low molecular weight polymer selected from the Group consisting of anionic styrene homopolymers, .alpha.-methylstyrene homopolymers, hydrogenated styrene, copolymers of .alpha.-methylstyrene and styrene and mixtures thereof and may contain a wax. In particularly preferred embodiments, the elastic fiber or film will contain at least one A-B-A triblock copolymer and an A-B' diblock copolymer.Type: GrantFiled: August 20, 1987Date of Patent: January 9, 1990Assignee: Shell Oil CompanyInventor: Glenn R. Himes
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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.
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Patent number: 4880843Abstract: Porous shaped articles made from a molded composite of ultra high molecular weight polyethylene and polyethylene wax are disclosed. These articles are produced by free-sintering a non intensively mixed blend of UHMW-PE particles and particles of a polyethylene wax. The process involves mixing the UHMW-PE and wax both in powdered form until a heterogeneous mixture is formed, but under conditions which do not lead to any substantial fracturing of the UHMW-PE particles or melting of either component. The heterogeneous mix is then transferred to a press mold to form a shape and pressure is applied sufficient only to maintain the enclosed volume of the shape. The mold is heated to a temperature above the melting point of the UHMW-PE for a period of time to allow the particles to soften, expand, and contact one another at their surfaces. The mixture is then quickly cooled.Type: GrantFiled: March 28, 1988Date of Patent: November 14, 1989Assignee: Hoechst Celanese CorporationInventor: Harvey L. Stein
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Patent number: 4874804Abstract: Hot melt packaging adhesive compositions consisting essentially of 35 to 45% by weight of an ethylene n-butyl acrylate copolymer containing 25-45% by weight, preferably 30 to 40% n-butyl acrylate and having a melt index of at least 50; 35 to 55% of a terpene phenolic tackifier; and 10 to 20% by weight of a high melting synthetic wax provide adhesives characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability.Type: GrantFiled: August 24, 1988Date of Patent: October 17, 1989Assignee: National Starch and Chemical CorporationInventors: Francis X. Brady, Thomas F. Kauffman
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Patent number: 4855098Abstract: A candle composition consisting essentially of about 10 to 90 volume percent of a first paraffin wax with a melting point of 120.degree. to 125.degree. F. and having a maximum of 2 percent oil, about 10 to 90 volume percent of the second paraffin wax with a melting point of 125.degree. to 130.degree. F. and having a maximum of 0.2 percent oil, and about 0.1 volume percent of stretchability enhancer and a method of forming a candle therefrom. A method of forming a candle comprising submerging a plurality of wax pieces consisting essentially of about 10 to 90 volume % paraffin wax with a melting point of 120.degree. F. and having a maximum of 2.0% oil, about 10 to 90 volume % paraffin wax with a melting point of 125.degree. to 130.degree. F. and having a maximum of 0.2% oil and about 0.1 to 1.0 volume % of a stretchability enhancer in water having a temperature between about 100.degree. and 120.degree. F.Type: GrantFiled: December 16, 1987Date of Patent: August 8, 1989Inventor: Ted Taylor
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Patent number: 4849316Abstract: Resin composition containing vinyl polymer and olefin polymer for use in electrophotography, electrostatic recording and electrostatic printing and the like, more particularly the resin composition obtained by uniformly dispersing the olefin polymer in the vinyl polymer, and the toner containing this resin composition are disclosed.Type: GrantFiled: December 13, 1988Date of Patent: July 18, 1989Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Shoji Kawaski, Hisatomo Sato, Masaaki Shin, Takashi Yamamoto
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Patent number: 4774139Abstract: Thermoplastic hot-melt adhesive granulate for melt-coating, the granulate particles of which have a coating of a film of paraffin with a melting point of 45.degree. C. to 85.degree. C. in an amount of up to 5% by weight, based on the polymer. The antioxidant is present in the film coating. The invention also relates to a method for the manufacture of this hot-melt adhesive granulate and to its used as a hot-melt coating for heat sealing.Type: GrantFiled: October 22, 1987Date of Patent: September 27, 1988Assignee: Deutsche Atochem Werke GmbHInventors: Karl-Heinz Hapelt, Helmut Knipf
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Patent number: 4772650Abstract: Tamper-resistant inner seals that bond firmly to the lips of lidded and capped glass and plastic containers. The innerseals incorporate a metallic foil having a heat-sealable adhesive applied to one surface thereof. The heat-sealable adhesive comprises a paraffin wax or blend of paraffin wax and microcrystalline wax, polystyrene or derivative thereof, rosin or derivative thereof, and at least one high molecular weight polymeric material selected from the group consisting of ethylene/acrylic acid copolymers, ethylene/vinyl acetate copolymers, ethylene/methacrylate copolymers, and ethylene/vinyl acetate/methacrylic acid terpolymers, and blends thereof.Type: GrantFiled: December 4, 1986Date of Patent: September 20, 1988Assignee: Minnesota Mining and Manufacturing Co.Inventor: David T. Ou-Yang
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Patent number: 4767669Abstract: Quick setting, nonaqueous melt size compositions suitable for application as a melt to textile yarns, and for later removal by solvent or aqueous means, include substantially equal amounts of an 80/20 ethylene/acrylic acid copolymer and a wax such as hydrogenated tallow intimately blended with a smaller amount of sebacic acid or dodecanedioic acid together with an amount of a nonionic surfactant to facilitate size removal.Type: GrantFiled: April 21, 1987Date of Patent: August 30, 1988Assignee: Burlington Industries, Inc.Inventors: Delano M. Conklin, John H. Hansen, Norbert W. Burske, Robert C. Malpass
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Patent number: 4766166Abstract: Compositions are provided which comprise 50-80% of a synthetic wax, such as a Fischer-Tropsch wax, in combination with 10-50% of a polyethylene material having a Brookfield viscosity at 284.degree. F. greater than about 5000 centipoise. The compositions serve as replacements for commercially available low viscosity polyethylenes, i.e., polyethylenes having Brookfield viscosities at 284.degree. F. of less than about 1000 centipoise, in such applications as lubricating plastic extrusions and coating paperboard stock. The compositions can be prepared by melting and then mixing the components. Accordingly, custom tailoring of the compositions for specific applications can be readily performed.Type: GrantFiled: February 13, 1987Date of Patent: August 23, 1988Assignee: Moore and Munger Marketing and Refining, Inc.Inventors: Janardan D. Upadhyaya, Harry M. Farnham, Ing C. Lin, Alan R. Case
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Patent number: 4748196Abstract: A water repellent composition comprising an emulsion prepared by emulsifying in water (A) a wax having a melting point of from 40.degree. to 90.degree. C. and (B) an olefin-maleic anhydride derivative in the presence of (C) a water-soluble alkaline compound and/or a nonionic emulsifier.Type: GrantFiled: September 18, 1986Date of Patent: May 31, 1988Assignees: Mitsubishi Chemical Industries, Ltd., Yoshino Gpysum Company, Ltd.Inventors: Katsuhiko Kuroda, Toru Tagawa, Kiyoharu Yoshimi, Yasoji Ozawa
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Patent number: 4719038Abstract: Corrosive resistant, coated laminate consisting of metal substrate, anti-corrosive layer and paint layer, which is characterized by the fact that the anti-corrosive layer is formed by a composition containing, as essential components, at least one hexa-valent chromium containing chromium compound having a solubility of 20 to 10.sup.-5 and aqueous silica and/or aqueous resin as binder, and as optional component, a water soluble chromium compound having a solubility of more than 20, and the paint layer is free from chromium compound. The laminate is excellent, inter alia, in adhesion of coating and anti-corrosive property. The invention also provides a coated metal plate having excellent corrosion resistance and continuous spot weldability.Type: GrantFiled: May 28, 1986Date of Patent: January 12, 1988Assignee: Nippon Paint Co., Ltd.Inventors: Tamotsu Sobata, Masaaki Takimoto, Yuichi Yoshida
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Patent number: 4716191Abstract: A flooding compound for a waterproof communications cable is formed from a heated mixture of 92-94% by weight of a microcrystalline wax, 3-5% polyethylene and 2-4% of a rubber. The heated mixture is extruded between the plastic jacket and core sheath of a cable. The compound exhibits the adhesive and slip characteristics of, and is a replacement for, atactic polypropylene.Type: GrantFiled: May 16, 1985Date of Patent: December 29, 1987Assignee: Witco Corp.Inventors: Thomas D. Hindman, Thomas J. Roessing, Joseph D. Burkhard
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Patent number: 4681910Abstract: Aqueous, air drying latex coating compositions contain a large proportion of wax which dries to provide a continuous and durable film from which the wax exudes slowly and progressively to the surface over a long period of time to provide long-term water repellency. The coatings are primarily intended for application to exterior wood surfaces.Type: GrantFiled: January 13, 1986Date of Patent: July 21, 1987Assignee: DeSoto, Inc.Inventors: William B. Crockatt, John Rimma
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Patent number: 4657958Abstract: Adhesive compositions for bonding EPDM elastomers comprise (a) a neutralized sulfonated EPDM elastomeric terpolymer; (b) an organic hydrocarbon solvent; (c) an ionic plasticizer or mixture of ionic plasticiziers; (d) a phenolic hydrocarbon resin or mixture of phenolic hydrocarbon resins and (e) a material selected from mineral oils, petroleum oils, polybutenes, polyisobutylenes and ethylene/propylene copolymers. Such adhesive compositions are particularly suitable for bonding sheets of black EPDM, especially sheets of cured black EPDM, elastomeric membranes together and may also be utilized to bond sheets of cured black EPDM to other uncured elastomers and to non-elastomeric substrates as well.The adhesive compositions to proper selection of the component (e) material and the addition of a color pigment or dye thereto may also be used to bond colored EPDM elastomers such as white, blue, yellow, green, etc.Type: GrantFiled: February 11, 1986Date of Patent: April 14, 1987Assignee: The Firestone Tire & Rubber CompanyInventors: John W. Fieldhouse, Mark L. Stayer
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Patent number: 4636258Abstract: An ink composition for thermal transfer printing of about 30 to 50 weight percent of a masterbatch including a pigment or dye uniformly dispersed in a copolymer of at least one of styrene and an .alpha.-olefin and at least one of a maleic anhydride and a dialkyl maleate and about 50 to 70 weight percent wax or resin is provided. The ink composition is suitable for use as the ink layer of an electrothermal transfer recording sheet.Type: GrantFiled: August 20, 1985Date of Patent: January 13, 1987Assignee: Seiko Epson Kabushiki KaishaInventors: Seiichi Hayashi, Katsumori Takei, Takahiro Usui, Yoshitaka Yamaguchi, Makoto Taniguchi
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Patent number: 4631308Abstract: A hot melt adhesive and coating composition is provided comprising a copolymer of ethylene and acrylic acid or methacrylic acid; a compatible wax and a tackifier. The copolymer characterized as having a melt flow of at least about 0.77 and an acrylic acid or methacrylic acid content such that the copolymer has an acid number ranging from about 8 to about 93.Type: GrantFiled: May 20, 1985Date of Patent: December 23, 1986Assignee: The Dow Chemical CompanyInventors: Stephen L. Graham, David O. Plunkett, Robert S. Lacey
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Patent number: 4619953Abstract: Low styrene emission vinyl ester resin compositions containing a polyacrylate as an adhesion promoter. Said VER composition exhibits desirable physical properties such as low styrene emission and excellent adhesive bond strength.Type: GrantFiled: September 9, 1985Date of Patent: October 28, 1986Assignee: The Dow Chemical CompanyInventors: John A. Schols, Kee C. Yu
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Patent number: 4614758Abstract: The present invention relates to the use of paraffin waxes or microwaxes in silicone pastes, in particular in kneadable compositions for the production of accurate impressions of teeth. The silicone pastes are preferably cold-vulcanizing two-component silicone rubber systems which are known per se and in which two pastes are mixed and then crosslink after about 2-5 minutes at room temperature.Type: GrantFiled: April 30, 1985Date of Patent: September 30, 1986Assignee: Bayer AktiengesellschaftInventors: Peter Schwabe, Reiner Voigt
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Patent number: 4598019Abstract: The present invention is directed to a method for surface treatment characterized by making use of a surface treating agent, for a powdery and granular material stored in the open air, containing 0.5 to 50% by weight of a solid content as an essential component and a residue which is water, said solid content comprising (I) 100 parts by weight of a petroleum wax component selected from the group consisting of slack waxes containing 1% by weight or more of an oil content, slack microcrystalline waxes including 1% by weight or more of an oil content, paraffin waxes, microcrystalline waxes and their mixtures and (II) 5 to 500 parts by weight of a polymer component having adhesive properties and the lowest film-forming temperature of 40.degree. C. or less.Type: GrantFiled: December 5, 1984Date of Patent: July 1, 1986Assignee: Nippon Oil Company, Ltd.Inventor: Nobuo Yokoyama
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Patent number: 4581392Abstract: A non-aqueous hot melt coating for glass fibers consisting of a silane, an ethylene-ethyl acrylate copolymer, a microcrystalline wax, a phenolic-modified terpene resin and a chemically modified polyolefin for coating glass fibers which can be employed as resin reinforcement.Type: GrantFiled: May 24, 1984Date of Patent: April 8, 1986Assignee: Owens-Corning Fiberglas CorporationInventors: Gordon P. Armstrong, Martin C. Flautt, Jean-Claude Pollet
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Patent number: 4576987Abstract: An aqueous coating composition is disclosed which contains a large proportion of wax which dries to provide a continuous and durable film from which the wax exudes slowly and progressively to the surface over a long period of time to provide long term water resistance. This composition comprises: (1) from 5% to 40% of an aqueous microcrystalline wax dispersion; (2) from 40% to 93% of an aqueous emulsion of copolymerized monoethylenically unsaturated monomers having a sufficiently low glass transition temperature to coalesce on air drying; and (3) from 1% to 20% of an N-methylol functional self crosslinking polyurethane aqueous dispersion in which the polyurethane contains sufficient volatile amine-neutralized carboxyl groups for water dispersibility, these proportions being by weight based on the solids content of the three components which are blended together.Type: GrantFiled: December 13, 1984Date of Patent: March 18, 1986Assignee: DeSoto, Inc.Inventors: William B. Crockatt, John Rimma
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Patent number: 4567223Abstract: The hot-melt adhesives of the present invention comprise a blend of at least one propylene/C.sub.4 to C.sub.10 higher 1-olefin copolymer having an acid number of at least 5, a tackifying resin, and a high density, low viscosity polyethylene wax having a melt viscosity of about 5 to 50 cp. at 150.degree. C. This hot-melt adhesive has a novel combination of properties including low melt viscosity and fast setting which meet the requirements necessary for use in rapid bonding or closing in low and high temperature applications.Type: GrantFiled: August 31, 1984Date of Patent: January 28, 1986Assignee: Eastman Kodak CompanyInventor: William A. Ames
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Patent number: 4554303Abstract: Disclosed are blends of low-melting, slowly crystallizing copolyesters or of substantially amorphous copolyesters having relatively high glass transition temperatures containing very small amounts of low-molecular-weight polyolefins. These blends have sharply increased crystallinity and crystallization rates and provide significant improvements in production because of the enhanced crystallization.Type: GrantFiled: December 14, 1984Date of Patent: November 19, 1985Assignee: Eastman Kodak CompanyInventors: Frederick D. Petke, Charles W. Ramsey, Richard L. McConnell
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Patent number: 4539364Abstract: A non-aqueous hot melt coating composition consisting of a thermoplastic rubber block copolymer, a polyethylene wax and a low molecular weight resin compatible with the end styrenic block of the rubber block copolymer is useful as a hot melt size.Type: GrantFiled: May 29, 1984Date of Patent: September 3, 1985Assignee: Owens-Corning Fiberglas CorporationInventors: Jean-Claude Pollet, Martin C. Flautt, Gordon P. Armstrong
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Patent number: 4509821Abstract: A cable fill composition comprising a paraffinic oil, a styrene-ethylene butylene-styrene block copolymer, and a linear polyethylene wax having an average molecular weight in the range of from about 1000 to 1500, whereby an improved drip point of the composition is obtained.Type: GrantFiled: September 1, 1983Date of Patent: April 9, 1985Assignee: Sun Tech, Inc.Inventor: Richard J. Stenger
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Patent number: 4501846Abstract: Disclosed is a pre-coat composition consisting essentially of (1) a low density polyethylene having a melt index of from about 70 to about 425; (2) a nitrogen-containing silane cross-linking compound, (3) a resin having a Ring and Ball softening point from about 50.degree. C. to about 115.degree. C.; (4) a hydrocarbon wax; and (5) optionally naphthenic oil. The composition is useful in the manufacture of tufted carpets.Type: GrantFiled: June 30, 1983Date of Patent: February 26, 1985Assignee: Hercules IncorporatedInventor: Raymond W. Goss
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Patent number: 4497792Abstract: A histological specimen infiltrating and embedding composition including paraffin and a copolymer of ethylene and vinyl acetate. The copolymer may be between 0.5 and 5% by weight of the paraffin. A surface active compatibilizer soluble in molten paraffin and which reduces the turbidity of the molten paraffin may be added to the composition in an amount between about 0.4% and 2% by weight of the paraffin.Type: GrantFiled: December 18, 1981Date of Patent: February 5, 1985Assignee: Sherwood Medical CompanyInventor: E. Melvin Gindler
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Patent number: 4495319Abstract: A concrete cure is provided which is totally water based and completely void of solvents. A moisture impermeable film is attained when the cure is applied to fresh concrete. The cure forms a barrier over the concrete allowing it to retain over 95% of the mixing water for a minimum of 72 hours when applied at the rate of 200 ft.sup.2 /gallon (5m.sup.2 /dm.sup.3). The concrete cure of the invention is a mixture of a hydrocarbon resin, emulsifying agents, paraffinic wax, and water. The cure may be provided in a clear or pigmented formulation. A method for making the concrete cure is also disclosed.Type: GrantFiled: December 29, 1983Date of Patent: January 22, 1985Assignee: W. R. Meadows, Inc.Inventors: John J. Sackis, Paul H. Anderson
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Patent number: 4471086Abstract: The hot-melt adhesives of the present invention comprise a blend of at least one polyethylene, a tackifying resin, a high density, low viscosity polyethylene wax having a molecular weight of about 1000, and a Fischer-Tropsch hydrocarbon wax. This hot-melt adhesive has a novel combination of properties such as low viscosity and fast setting which meet the requirements necessary for use in rapid bonding or closing in low temperature applications.Type: GrantFiled: November 9, 1983Date of Patent: September 11, 1984Assignee: Eastman Kodak CompanyInventor: Bruce W. Foster
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Patent number: 4460728Abstract: Hot melt adhesive compositions are prepared from ethylene copolymers, atactic polypropylene, tackifying resins and optional additives. The adhesives are non-pressure sensitive and are characterized by high cohesive strength, strong tack, and good heat, creep and cold resistance. In accordance with the preferred embodiment, the adhesives are formulated so as to be particularly adaptable for use in the construction of disposable diapers of the multi-line construction variety.Type: GrantFiled: February 28, 1983Date of Patent: July 17, 1984Assignee: National Starch and Chemical CorporationInventors: Robert C. Schmidt, Jr., Stanley J. Decowski, Jr., Paul P. Puletti