Microcrystalline Wax Patents (Class 524/488)
  • Patent number: 4764549
    Abstract: A novel curable rubber composition is described which is curable at low temperatures.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: August 16, 1988
    Assignee: Vulkor, Incorporated
    Inventors: Milton S. Greenhalgh, Joseph E. Vostovich
  • Patent number: 4761450
    Abstract: Compatible polymer blends useful as melt adhesives comprising a low density ethylene polymer, a copolymer of butene-1 and ethylene or propylene, a hydrocarbon tackifier and a low molecular weight polymer selected from the group consisting of a low molecular weight liquid polybutene, an amorphous polypropylene and mixtures thereof.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: August 2, 1988
    Assignee: Baychem International, Inc.
    Inventors: Pallavoor R. Lakshmanan, Paula J. Carrier
  • Patent number: 4761444
    Abstract: An elastomeric blend composition having improved tear properties and having a viscosity at 0.73 sec.sup.-1 and at 200.degree. C. of about 8.times.10.sup.3 to about 8.times.10.sup.5 poises, said composition formable into an elastomeric article, which comprises:(a) a neutralized sulfonated EPDM terpolymer having a viscosity at 0.73 sec.sup.-1 and at 200.degree. C. of about 5.times.10.sup.4 poises to about 5.times.10.sup.6 poises and about 10 to about 50 meq. sulfonate groups per 100 grams of said sulfonated EPDM terpolymer, said sulfonate groups being neutralized; and(b) about 2 to about 60 parts by weight of a fluorohydrocarbon elastomer per 100 parts of such sulfonated EPDM terpolymer.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: August 2, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Pawan K. Agarwal, William M. Petrik, Richard T. Garner
  • Patent number: 4749616
    Abstract: In a heat sealable coating composition for application to a polymer film wherein the composition contains (a) a film-forming aqueous latex based on an interpolymer or blend one or more acrylate esters and, optionally, one or more alpha, beta ethylenically unsaturated carboxylic acids, (b) inorganic particulate hot slip agent and (c) wax-containing cold slip agent, an improvement is provided which comprises the presence therein of such an aqueous latex in which the average particle size of the interpolymer component is from about 0.03 to about 0.5 microns.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: June 7, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Leland L. Liu, Robert H. Steiner
  • Patent number: 4716191
    Abstract: 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: Grant
    Filed: May 16, 1985
    Date of Patent: December 29, 1987
    Assignee: Witco Corp.
    Inventors: Thomas D. Hindman, Thomas J. Roessing, Joseph D. Burkhard
  • Patent number: 4684672
    Abstract: Novel rubber connectors and other rubber parts for use in human infusion sets and rubber compositions and other rubber parts for use in human infusion sets and products produced thereby, such compositions comprising by weight a major amount of rubber selected from mixtures of natural rubber and synthetic natural rubber, the novel composition further comprising by weight a minor amount of a high density polyolefin and a filler, the composition being capable of being cured with an effective amount of a peroxide curing agent and an activator to achieve cross-linking of the rubber and the high density polyolefin.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: August 4, 1987
    Inventors: Robert L. Buchanan, Henry F. Dull, Jr.
  • Patent number: 4681910
    Abstract: 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: Grant
    Filed: January 13, 1986
    Date of Patent: July 21, 1987
    Assignee: DeSoto, Inc.
    Inventors: William B. Crockatt, John Rimma
  • Patent number: 4636258
    Abstract: 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: Grant
    Filed: August 20, 1985
    Date of Patent: January 13, 1987
    Assignee: Seiko Epson Kabushiki Kaisha
    Inventors: Seiichi Hayashi, Katsumori Takei, Takahiro Usui, Yoshitaka Yamaguchi, Makoto Taniguchi
  • Patent number: 4631308
    Abstract: 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: Grant
    Filed: May 20, 1985
    Date of Patent: December 23, 1986
    Assignee: The Dow Chemical Company
    Inventors: Stephen L. Graham, David O. Plunkett, Robert S. Lacey
  • Patent number: 4614758
    Abstract: 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: Grant
    Filed: April 30, 1985
    Date of Patent: September 30, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Schwabe, Reiner Voigt
  • Patent number: 4609591
    Abstract: 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: Grant
    Filed: May 10, 1985
    Date of Patent: September 2, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jean-Claude Pollet, Gordon P. Armstrong, Martin C. Flautt
  • Patent number: 4598019
    Abstract: 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: Grant
    Filed: December 5, 1984
    Date of Patent: July 1, 1986
    Assignee: Nippon Oil Company, Ltd.
    Inventor: Nobuo Yokoyama
  • Patent number: 4581392
    Abstract: 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: Grant
    Filed: May 24, 1984
    Date of Patent: April 8, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Gordon P. Armstrong, Martin C. Flautt, Jean-Claude Pollet
  • Patent number: 4576987
    Abstract: 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: Grant
    Filed: December 13, 1984
    Date of Patent: March 18, 1986
    Assignee: DeSoto, Inc.
    Inventors: William B. Crockatt, John Rimma
  • Patent number: 4568713
    Abstract: Hot melt adhesives with long open time and good cold metal bonding are made of blends of an at least partially crystalline copolymer of butene-1 and ethylene, an aliphatic, substantially non-polar resin, an antioxidizing agent and, optionally, microcrystalline wax.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: February 4, 1986
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, David J. St. Clair
  • Patent number: 4554304
    Abstract: Hot melt adhesives with long open time good bonding to cold metals are made of blends of a maleic anhydride modified copolymer of butene-1 and ethylene, an aliphatic, substantially non-polar resin, a antioxidizing agent and, optionally, microcrystalline wax, a block copolymer and atactic polypropylene.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: November 19, 1985
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, William H. Korcz
  • Patent number: 4554303
    Abstract: 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: Grant
    Filed: December 14, 1984
    Date of Patent: November 19, 1985
    Assignee: Eastman Kodak Company
    Inventors: Frederick D. Petke, Charles W. Ramsey, Richard L. McConnell
  • Patent number: 4539364
    Abstract: 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: Grant
    Filed: May 29, 1984
    Date of Patent: September 3, 1985
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jean-Claude Pollet, Martin C. Flautt, Gordon P. Armstrong
  • Patent number: 4504434
    Abstract: A composition adapted for processing into stretch wrap film. The composition comprises between about 40 and about 90% by weight of a high molecular weight copolymer of ethylene and vinyl acetate containing between about 4 and about 25% by weight of repeating units derived from vinyl acetate and having a melt index of between about 0.1 and about 4.0. The composition further comprises between about 8 and about 55% by weight of a linear copolymer of ethylene and a higher alkene. Such linear copolymer has a specific gravity of between about 0.917 and about 0.945. The invention further includes stretch wrap film, a method of producing stretch wrap film of differential cling properties, and a composite film constituted of a layer of the aforesaid ethylene vinyl acetate copolymer and a layer of the linear copolymer of ethylene and a higher alkene.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: March 12, 1985
    Assignee: Bemis Company, Inc.
    Inventor: Barry A. Cooper
  • Patent number: 4497792
    Abstract: 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: Grant
    Filed: December 18, 1981
    Date of Patent: February 5, 1985
    Assignee: Sherwood Medical Company
    Inventor: E. Melvin Gindler
  • Patent number: 4460724
    Abstract: A hot melt composition is provided which comprises (1) a hydrogenated resin (II) having a softening point ranging from 50.degree. C. to 140.degree. C., said hydrogenated resin (II) being prepared by hydrogenating a copolymer resin (I) obtained by copolymerizing 20 to 60 wt % of a component (A) selected from the group consisting of five-member cyclic compounds each having a conjugated double bond and represented by the general formula (A) given below and Diels-Alder addition products thereof (A):GENERAL FORMULA (A): ##STR1## wherein H is hydrogen; R is an alkyl group having from 1 to 3 carbon atoms; m and n are zero or integers of not less than 1 and are in the relation of m+n=6;with 25 to 70 wt % of a codimer (component B) of said five-member cyclic compound and an aliphatic conjugated diolefin having 4 to 5 carbon atoms and 2.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: July 17, 1984
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Shozo Tsuchiya, Akio Ohshima, Hideo Hayashi
  • Patent number: 4456713
    Abstract: A composition for injection molding a sinterable material such as silicon nitride.This composition includes a binder system which imparts a greater flexibility to the, as molded, green body. The binder-system contains a major component of paraffin wax, a minor component of epoxy resin, and a surfactant.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: June 26, 1984
    Assignee: GTE Laboratories Incorporated
    Inventors: Kenneth W. French, Jeffrey T. Neil, Larry L. Turnbaugh
  • Patent number: 4456649
    Abstract: This invention relates to holt melt adhesives for use in coating and/or laminating paper. Conventional hot melt adhesives used to manufacture a coated or laminated product with good vapor barrier characteristics are based on ingredients compounded with significantly lower proportions of inert low cost filler materials. The present invention provides a hot melt adhesive/coating blend which not only provides a moisture vapor barrier and/or bonding but also significantly reduces the quantity of more expensive ingredients through the use of a large quantity of a lower cost ultra fine ground inert inorganic filler material and a low cost modifying hydrocarbon resin. The blend or composition consists essentially of, in parts by weight, up to about 25 parts of a hi melt point paraffin wax, 10-30 parts of a modifying hydrocarbon resin, 1-20 parts of an elastomeric copolymer, and 20-85 parts of an inert inorganic filler material.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: June 26, 1984
    Assignee: Manville Service Corporation
    Inventor: Wayne C. Clarke
  • Patent number: 4436866
    Abstract: An aqueous coating composition is provided for filamentary materials that yields coated filamentary material with improved weavability and that yields reinforced elastomeric materials having improved properties of flexibility and fatigue resistance. The aqueous adhesive coating composition has a vinyl-pyridine-containing copolymer or terpolymer latex, a non-selfcrosslinkable elastomeric latex, a carboxylated butadiene polymer, and a phenolic aldehyde condensate polymer. The vinyl pyridine-containing elastomeric latex is produced from a vinyl pyridine-containing monomer, 1,3-diene hydrocarbon monomer or the terpolymer is produced in the same way with the addition of a vinyl containing monomer. The non-selfcrosslinkable elastomeric latex has a low gel content of less than around 40 weight percent and a low average particle size of less than around 2000 angstroms.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: March 13, 1984
    Assignee: PPG Industries, Inc.
    Inventor: Mikhail M. Girgis
  • Patent number: 4435469
    Abstract: A relatively high melting point thermoplastic hot melt adhesive suitable for bonding a paper facing to glass fiber based insulating materials to produce good adhesion and superior water vapor barrier properties, containing in percent by weight:______________________________________ Microcrystalline Wax 8-12% Synthetic Polyethylene Wax 8-12% Hydrocarbon Resin 13-17% Ethylene-Vinyl Acetate 6-12% copolymer Calcium Carbonate Filler Up to 65% BHT antioxidant .002-.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: March 6, 1984
    Assignee: Manville Service Corporation
    Inventor: Ralph M. Fay
  • Patent number: 4425268
    Abstract: A composition adapted for processing into stretch wrap film. The composition comprises between about 40 and about 90% by weight of a high molecular weight copolymer of ethylene and vinyl acetate containing between about 4 and about 25% by weight of repeating units derived from vinyl acetate and having a melt index of between about 0.1 and about 4.0. The composition further comprises between about 8 and about 55% by weight of a linear copolymer of ethylene and a higher alkene. Such linear copolymer has a specific gravity of between about 0.917 and about 0.945. The invention further includes stretch wrap film, a method of producing stretch wrap film of differential cling properties, and a composite film constituted of a layer of the aforesaid ethylene vinyl acetate copolymer and a layer of the linear copolymer of ethylene and a higher alkene.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: January 10, 1984
    Assignee: Bemis Company, Inc.
    Inventor: Barry A. Cooper
  • Patent number: 4412030
    Abstract: Resins suitable for adhesives are based on .alpha.-methyl styrene, styrene and phenol in certain percentages, viz. 25 to 63, 35 to 73 and 2 to 15 percent by weight, respectively.Combinations of resin, ethylene vinyl acetate copolymer, atactic polypropylene, ethyl acrylate copolymer or a thermoelastomer and optionally a wax or tackifying oil yield excellent adhesives, in particular hot-melt adhesives.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: October 25, 1983
    Assignee: National Starch and Chemical Corporation
    Inventors: Yves Runavot, Georges Billault, Jaques Salvetat
  • Patent number: 4405746
    Abstract: An aqueous coating composition for filamentary materials that are to be used in reinforcing elastomeric matrix materials is provided that renders reinforced elastomeric materials having improved properties of flexibility and fatigue resistance. The aqueous adhesive coating composition has a vinyl-pyridine-containing copolymer or terpolymer latex, a phenolic aldehyde condensate polymer, and a non-self-crosslinkable elastomeric latex with a low gel content of less than around 40 weight percent and a low average particle size of less than around 2000 angstroms. The vinyl pyridine-containing elastomeric latex is produced from a vinyl pyridine-containing monomer, 1,3 diene hydrocarbon monomer or the terpolymer is produced in the same way with the addition of a vinyl containing monomer. In addition the aqueous adhesive coating composition may contain a wax emulsion, antioxidant, and carboxylated styrene butadiene copolymer latex.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: September 20, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Mikhail M. Girgis
  • Patent number: 4404299
    Abstract: A composition for the manufacture of hot-melt adhesives, in which the improvement comprises a terpolymer of ethylene having a melt index between 5 and 500 dg/minute and comprising from 1 to 10 mol % of units derived from an ester selected from alkyl acrylates and methacrylates, the alkyl group having from 1 to 6 carbon atoms, and from 0.3 to 3 mol % of units derived from maleic anhydride. The composition also contains at least one tackifying resin and may contain at least one compound selected from paraffin, microcrystalline polymeric wax, and esters of a hydrogenated rosinic acid and of a lower alcohol.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: September 13, 1983
    Assignee: Societe Chimique des Charbonnages-CDF CHIMIE
    Inventor: Jean-Claude Decroix
  • Patent number: 4394418
    Abstract: An aqueous sizing composition for glass fibers and the resultant sized glass fiber strands are provided, where the sized glass fiber strands have an improved slip/flow property and resultant thermosetting articles reinforced with the sized glass fiber strands have improved impact properties. The aqueous sizing composition has a poly(vinyl acetate) silane copolymer, epoxy polymer, one or more lubricants, an organo silane coupling agent, which may be an amino-silane coupling agent, lubricant modified-amino-organo silane coupling agent, epoxy-containing silane coupling agent or a mixture of one or more of these coupling agents, one or more nonionic surfactants, a polyethylene-containing polymer, a wax, a hydrocarbon acid and water. The aqueous sizing composition is applied to glass fibers which are then produced into wet chopped glass fiber strands or continuous sized glass fiber strands.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: July 19, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Chester S. Temple
  • Patent number: 4394475
    Abstract: Sized glass fiber strands are provided that have improved slip/flow characteristics. This improved characteristic is achieved by sizing glass fibers with an aqueous sizing composition having one or more nonstarch film forming polymers, one or more coupling agents, one or more lubricants or a mixture thereof, polyethylene-containing polymer with limited branching and water. The aqueous sizing composition can also have a wax having a melting point greater than 50.degree. C. where the total amount of the polyethylene polymer and wax is not greater than about 15 weight percent of the aqueous sizing composition.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: July 19, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Chester S. Temple, Ed C. Hsu
  • Patent number: 4371634
    Abstract: A microcapsule-containing wax composition, which comprises (a) microcapsules of from 2 to 10 .mu.m diameter, (b) waxes and (c) dispersants, with or without pigments, fillers, volatile constituents and other agents conventionally present in wax compositions for the hot carbon process.The wall material of the microcapsules is a cross-linked urea-melamine condensate.The wax compositions may be applied over all or part of the surface of a base material, and give deeply colored copies with color-forming (CF) layers.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: February 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietrich Hoffman, Wolfgang Sliwka
  • Patent number: 4360628
    Abstract: Solid copolymer tackifying resins based on dicyclopentadiene, a vinylaromatic hydrocarbon and a benzene carrying 1 to 3 lower alkyl, hydroxyl or halogen substituents and adhesive formulations containing these resins.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: November 23, 1982
    Assignee: National Starch and Chemical Corporation
    Inventors: Yves Runavot, Georges Billault, Jacques Salvetat
  • Patent number: 4356036
    Abstract: An anti-corrosion coating for metals comprising a mixture of aluminum paste or zinc paste, microcrystalline wax, aromatic hydrocarbon resin, chlorinated rubber, neutral barium sulfonate, chlorinated solvent, aromatic hydrocarbon solvent, and mineral spirits.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: October 26, 1982
    Inventor: Nicolas Kaliardos
  • Patent number: 4317755
    Abstract: A water based self-polishing sealing composition as a protective coating for floors, metal parts and the like, utilizes a film forming polymeric coating agent and a hydrocarbon solvent having a solubility parameter from about 7.8 to 9.8 emulsified with a compatible surfactant.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: March 2, 1982
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Gordon K. Gregory