Wax Having Melting Point Above 120 Deg. F (49 Deg. C) Patents (Class 524/489)
  • Patent number: 5804266
    Abstract: A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene-vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: September 8, 1998
    Assignee: The University of Dayton
    Inventor: Ival O. Salyer
  • Patent number: 5763516
    Abstract: Hot-melt adhesive compositions useful for packaging are disclosed. These hot-melt adhesive compositions are based on modified polyethylene and contain a linear, low density copolymer or terpolymer of ethylene and another alpha-olefin, a polyethylene graft copolymer, a tackifying resin, and a high-melting low viscosity wax. The hot-melt adhesive compositions disclosed herein produce very good adhesive bonds, even at high speed packaging conditions under a broad range of ambient packaging temperatures. These inventive adhesive compositions have a novel combination of good hot tack and good adhesive bond properties, even at extreme conditions.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: June 9, 1998
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventor: Darryl Aubrey Godfrey
  • Patent number: 5717021
    Abstract: The present invention involves blends of polycarbonate resin with rubber grafted terpolymer resin, one or more styrenic rigid coplymers wherein a small amount of an aliphatic C.sub.4 to C.sub.16 polyalpha olefin homopolymer or copolymer or its functionalized derivatives is included in the blend.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: February 10, 1998
    Assignee: General Electric Company
    Inventors: Jianing Huang, Ronald L. Jalbert, Mark Giammattei, Gregory J. Stoddard
  • Patent number: 5686515
    Abstract: A process for manufacture of articles comprised of polyethylene terephthalate wherein the PET is colored with a composition comprised of a wax dispersant, ethylene copolymer, and a colorant. In a preferred embodiment, the wax dispersant is a maleated polyethylene wax. In an alternative embodiment, the wax dispersant is a low molecular weight polyethylene wax and the composition further includes linear low density polyethylene. A preferred ethylene copolymer is ethylene-(meth)acrylic acid.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: November 11, 1997
    Assignee: The M.A. Hanna Company
    Inventors: Tracy L. Phillips, Ronald M. Harris, Alan R. Burgess, Judy A. Johnston
  • Patent number: 5670566
    Abstract: A carton, case or tray formed utilizing a hot melt adhesive composition said adhesive consisting essentially of a) 10 to 60% by weight of at least one ethylene n-butyl acrylate copolymer containing 25 to 45% by weight n-butyl acrylate and having a melt index of at least about 850; b) 20 to 60% of a rosin ester tackifying resin; c) 10 to 50% by weight of a microcrystalline or paraffin wax having a melting point of 150.degree. to 200.degree. F.; d) 1 to 20% by weight of a polymeric additive selected from the group consisting of ethylene vinyl acetate containing 10 to 40% by weight vinyl acetate, ethylene methyl acrylate polymers containing 10 to 28% methyl acrylate, ethylene acrylic acid copolymers having an acid number of 25 to 150, polyethylene, polypropylene, poly-(butene-1-co-ethylene), and lower melt index ethylene n-butyl acrylate copolymers; and e) 0 to 1.5% stabilizer, said adhesive characterized by a viscosity of less than 3000 cps at 135.degree. C., fiber tearing bonds from within the range of -35.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: September 23, 1997
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Ingrid Liedermooy, Daniel C. Stauffer, Paul P. Puletti
  • Patent number: 5643984
    Abstract: A new wax composition for use in the ink industry, which composition is prepared from: (a) 40% to 90% of solvent having a boiling point within the range of about 100.degree. to 550.degree. C., said solvent being selected from the group consisting of aromatic and aliphatic solvents, (b) 10% to 40% of wax having an average particle size within the range of about 1 to about 300 microns, (c) 5% to 40% of polymeric pour point depressant, and optionally dependant on the characteristics required, 4% to 40% of a resin material which is soluble in aromatic and aliphatic solvents.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: July 1, 1997
    Assignee: Flint Ink Corporation
    Inventors: Raymond J. Mueller, George S. Hassaballa
  • Patent number: 5621032
    Abstract: A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liquid compound or low melting point solid compound. The liquid or low melting point solid ingredient is combined with a binder which is comprised of at least a wax and thermoplastic polymer. During the method of forming the product, both the binder and the liquid compound (or low melting point solid compound) pass through a liquid phase during which they are mixed. The product is then formed and cooled.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: April 15, 1997
    Assignee: Elastochem, Inc.
    Inventors: Richard D. Cortelezzi, Clifford C. Martin
  • Patent number: 5565132
    Abstract: A thermoplastic, moldable, non-exuding phase change material in the form of a composite useful for thermal energy storage. The composite is preferably a solidified melt mixture of a polyolefin resin, and ethylene copolymer, silica particles and a fatty acid, fatty acid ester, primary alcohol or hydrocarbon phase change material. For a microwave heating capability, a microwave absorbing additive may be added as a fifth major ingredient. The composite can be formed into a variety of configurations such as pellets, sheets, rods, tubes, plugs for hollow core cement blocks, films, and fibers, all for thermal energy storage uses.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 15, 1996
    Assignee: The University of Dayton
    Inventor: Ival O. Salyer
  • Patent number: 5530054
    Abstract: Disclosed are hot melt adhesives comprising ethylene/alpha-olefin copolymers prepared with either supported or unsupported metallocene-alumoxane catalysts for applications in hot melt adhesives used in automotive product assembly, packaging and food packaging. These ethylene copolymers have weight average molecular weight ranging from about 20,000 to about 100,000 and comonomer weight percent ranging from about 6 to about 30. The hot melt adhesive composition includes the ethylene copolymer and a compatible tackifier at a ratio of tackifier to copolymer of from 70:30 to 30:70 and may also include up to 30 weight percent of a paraffinic and microcrystalline wax of the copolymer and tackifier.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: June 25, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Mun F. Tse, Aspy K. Mehta, Vince L. Hughes
  • Patent number: 5527869
    Abstract: A composition of methacrilic resin which constitutes a resin possessing an outstandingly easy release from the mold of injection molding machine without defilement of the stamper and the peripheral ring of stamper holder, and therefore proves suitable material for replica of raser disk is provided. This methacrylic resin composition is characterized by having incorporated in a methyl methacrylate copolymer the three lubricant components, i.e. a higher alcohol (x), a monoglyceride of a higher fatty acid (y), and a paraffin (z), in such amounts that the individual contents of (x), (y), and (z) are in the respective ranges of 0.05 to 0.2% by weight, 0.05 to 0.2% by weight, and 0.02 to 0.15% by weight and the total content of (x), (y), and (z) is in the range of 0.2 to 0.35% by weight.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: June 18, 1996
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshio Fuchigami, Kouichi Warino, Shigeo Matsumaru, Yosokichi Kobayashi
  • Patent number: 5510408
    Abstract: A composition of methacrilic resin which constitutes a resin possessing an outstandingly easy release from the mold of injection molding machine without defilement of the stamper and the peripheral ring of stamper holder, and therefore proves suitable material for replica of raser disk is provided. This methacrylic resin composition is characterized by having incorporated in a methyl methacrylate copolymer the three lubricant components, i.e. a higher alcohol (x), a monoglyceride of a higher fatty acid (y), and a paraffin (z), in such amounts that the individual contents of (x), (y), and (z) are in the respective ranges of 0.05 to 0.2% by weight, 0.05 to 0.2% by weight, and 0.02 to 0.15% by weight and the total content of (x), (y), and (z) is in the range of 0.2 to 0.35% by weight.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: April 23, 1996
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshio Fuchigami, Kouichi Warino, Shigeo Matsumaru, Yosokichi Kobayashi
  • Patent number: 5500472
    Abstract: Hot melt adhesive compositions consisting essentially of: a) 15 to 45% by weight of at least one ethylene n-butyl acrylate copolymer containing 15 to 40% by weight n-butyl acrylate and having a melt index of at least 600; b) 25 to 55% of a terpene phenolic tackifying resin or a hydrogenated derivative thereof, the resin having a Ring and Ball softening point less than 125.degree. C.; c) 15 to 40% by weight of a low melting point synthetic Fischer-Tropsch wax; and d) 0 to 1.5% stabilizer. The adhesives are characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: March 19, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Ingrid Liedermooy, Julie Birch, Daniel C. Stauffer, Paul P. Puletti
  • Patent number: 5470897
    Abstract: A radically curable coating composition containing) 50 to 95 parts by weight of an unsaturated polyester component having a viscosity at 23.degree. C. of 1,000 to 15,000 mPa.s, B) 5 to 50 parts by weight of compounds containing (meth)acryloyl groups and/or vinyl ether groups, C) 0.01 to 0.3 wt. %, based on the total weight, of waxes and/or paraffins having a melting point of 35+ to 100.degree. C. and D) 0 to 10 wt. %, based on the total weight, of at least one plasticizer or carbamic acid resin, and the use of the coating composition for coating substrates, in particular wood substrates.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: November 28, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Meixner, Wolfgang Fischer, Manfred Muller
  • Patent number: 5441999
    Abstract: The foregoing and other objects and advantages of the present invention are accomplished by a hot melt adhesive comprising a blend of a low molecular weight polyolefin, olefin-carboxylic acid graft polymer or olefin-maleic anhydride graft polymer or blend thereof; a propylene-ethylene copolymer or propylene-ethylene-butene terpolymer; and a tackifying resin or blend of tackifying resins. The blend can include an antioxidant or blends of antioxidants, a high molecular weight or functionalized polyolefin or a copolymer or terpolymer of a vinyl monomer (e.g., ethylene/vinyl acetate).
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: August 15, 1995
    Assignee: Reichhold Chemicals, Inc.
    Inventors: Neil R. Jarvis, Anil B. Goel
  • Patent number: 5441998
    Abstract: A composition is provided which, when added to an elastomer or tackifier, renders a repulpable hot melt adhesive. The compositions consists of an alkoxylated alcohol of the formulaA-B (I)wherein A is the unit ##STR1## and B is the unit ##STR2## and further wherein R and R.sub.1 are independently selected from the group consisting of hydrogen and a C.sub.1 -C.sub.10 alkyl group; R.sub.2 is hydrogen or a C.sub.1 -C.sub.5 alkyl group; x is between about 1 to about 142; and y is between about 2 to about 817, provided the weight ratio of B/A+B is between 51 and 90 percent. Such adhesive compositions may further contain wax or a primary linear polymeric alcohol. When combined with an elastomer and tackifier, such adhesives are repulpable and thus have particular applicability when used in combination with recyclable paper.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: August 15, 1995
    Assignee: Petrolite Corporation
    Inventors: Susan M. Teeters, Charles H. Heroux, Michael D. Watson, William P. Cottom, Terrance D. Duryee
  • Patent number: 5437722
    Abstract: The water resistance of gypsum compositions, such as those used in gypsum wallboard, is improved by incorporating in the compositions an aqueous emulsion containing a paraffinic hydrocarbon having a melting point of 40.degree. to 80.degree. C., montan wax and polyvinyl alcohol.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: August 1, 1995
    Assignee: Bakor Inc.
    Inventor: Lionel Borenstein
  • Patent number: 5416153
    Abstract: Polyolefin molding composition of high rigidity and hardnessA polyolefin molding composition essentially comprisinga) a polyolefin wax andb) a high-molecular-weight polyolefin or, instead of b),c) a high-molecular-weight olefin copolymer has high rigidity and hardness.In order to increase the impact strength, this molding composition may additionally be admixed with a rubber having a glass transition temperature of below -20.degree. C.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 16, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Bernd Bachmann
  • Patent number: 5391601
    Abstract: The present invention relates to a blend of a linear or branched chain saturated aliphatic hydrocarbon wax having a molecular weight of between about 300 to about 5,000 and an alkoxylated alcohol of the formula A--B, wherein A is the unit: CH.sub.3 (CHR--CHR.sub.1).sub.x -- and B is the unit: --CH.sub.2 O(CH.sub.2 CHR.sub.2 O).sub.y H. R and R.sup.1 are independently selected from the group consisting of hydrogen and a C.sub.1 -C.sub.10 alkyl group; R.sub.2 is hydrogen or a C.sub.1 -C.sub.5 alkyl group; x is between about 1 to about 142; and y is between about 2 to about 817, provided the weight ratio of B/A+B is between 51 and 90 percent. Such blends may be used with an elastomer and tackifier to form a repulpable laminating adhesive. The invention further relates to a laminating adhesive containing alkoxylated alcohol, elastomer, wax and tackifier.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: February 21, 1995
    Assignee: Petrolite Corporation
    Inventors: Susan M. Teeters, Charles H. Heroux, Michael D. Watson, William P. Cottom, Terrance D. Duryee
  • Patent number: 5384353
    Abstract: A thermoplastic resin composition is provided comprising an aromatic polycarbonate resin, rubber modified vinyl aromatic-vinyl cyanide graft copolymer, and glass fibers which have been treated with polyolefin wax and optionally a functionalized silane. The nature of the coating on the glass fibers provides the composition with improved impact strength over binding glass. The composition is useful as molding material.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: January 24, 1995
    Assignee: General Electric Company
    Inventors: Linda M. Gemmell, Otho W. Tennant, Robert R. Gallucci
  • Patent number: 5382615
    Abstract: Hot-melt adhesive compositions useful for packaging are disclosed. These hot-melt adhesive compositions are based on modified polyethylene and contain an ethylene-alkylacrylate copolymer, a polyethylene graft copolymer, a tackifying resin, and a high-melting low viscosity wax. The hot-melt adhesive compositions disclosed have fast setting times and a novel combination of desired properties with good high and low temperature bond strength.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: January 17, 1995
    Assignee: Eastman Chemical Company
    Inventor: Darryl A. Godfrey
  • Patent number: 5373049
    Abstract: Hot-melt adhesives, useful for both glue-pot and glue-gun applications, are formulated so that they can be applied at temperatures no higher than 280.degree. F. and preferably at temperatures of at most 250.degree. F. The adhesive compositions have a heat resistance of at least 125.degree. F. and are readily shaped into glue sticks for use in glue guns, The adhesive for the hot-melt adhesive compositions is suitably compounded with tackifying resin and/or wax. The resulting composition has a sharp viscosity profile, which is readily achieved, e.g., by using a high melt index adhesive polymer as an essential component.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: December 13, 1994
    Assignee: Adhesive Technologies
    Inventors: Robert L. Ornstern, Peter S. Melendy, Dennis J. Fitzmeyer
  • Patent number: 5362792
    Abstract: An adhesive composition is comprised of a mixture of an EVA copolymer and two tackifying resins, a high temperature tackifying resin and a low temperature tackifying resin. The viscosity of the adhesive composition is between 2,000 cps to 80,000 cps over a temperature range of 250.degree. F. to 380.degree. F. The composition comprises 60% by weight of the copolymer, 15% by weight of the low temperature tackifying resin and 25% by weight of the high temperature tackifying resin.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: November 8, 1994
    Assignee: Uniplast, Inc.
    Inventor: Elias S. Maayeh
  • Patent number: 5346942
    Abstract: The present invention provides a monolithic refractory with self-flowability. A monolithic refractory of the first invention of the present invention contains refractory aggregates, liquid novolak type phenol resin and an organic separation preventative. A monolithic refractory of the second invention of the present invention contains refractory aggregates and a novolak type phenol resin solution with a number-average molecular weight of not more than 600. The first invention of the present invention gives good hot flowability and prevention of sedimentation of the aggregates to the monolithic refractory. The second invention gives good hot flowability, stabilization in adhesion and prevention of warpage of the hardened body obtained. With the present invention a monolithic refractory can be suitably selected and used according to its intended use and purpose.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: September 13, 1994
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Takashi Yamamura, Ryosuke Nakamura, Hiroshi Kiriyama
  • Patent number: 5338790
    Abstract: A polymer composition having a good balance of improved mechanical properties and optical properties such as low haze, which comprisesa) propylene-butene random copolymer,b) at least one additive, andc) a clarifying agent which is calcium montanate, at least one polyolefin wax or combinations thereof.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: August 16, 1994
    Assignee: Shell Oil Company
    Inventor: Ananda M. Chatterjee
  • Patent number: 5334644
    Abstract: Aqueous application systems for applying additives to polymeric particles, methods of preparing aqueous emulsions which include at least one processing, stabilizing or other functional polymer additive and an emulsifiable wax. Also disclosed are methods of applying additives to polymeric particles and to polymeric particles treated by such methods.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: August 2, 1994
    Assignee: Eastman Chemical Company
    Inventors: William C. Gose, Kenneth W. Hyche
  • Patent number: 5331033
    Abstract: Hot melt packaging adhesive compositions consisting essentially of 20 to 50% 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 10; 30 to 60% of an aliphatic or cycloaliphatic hydrocarbon resin or hydrogenated derivative thereof or a hydrogenated aromatic hydrocarbon resin; and 10 to 30% 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. Further, the adhesive is characterized by a low density and consequently is readily filterable in recycling systems.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: July 19, 1994
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Daniel Stauffer, Paul P. Puletti, Thomas F. Kauffman
  • Patent number: 5300538
    Abstract: An erasable highlighting composition is provided including a block copolymer, a wax, and a fluorescent pigment. The composition is in solid form, and, when applied to an underlying marking on a substrate, is capable of forming a highlighting marking which may be erased without lifting the underlying marking.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: April 5, 1994
    Assignee: The Gillette Company
    Inventor: Rachel M. Loftin
  • Patent number: 5284890
    Abstract: The invention disclosed relates to an injection mouldable synthetic rubber composition which provides twenty-four hour protection from penetration by H-agent and as such is particularly suitable for use in gas masks. The novel rubber composition comprises a synthetic rubber such as bromobutyl rubber, carbon black and other appropriate additives.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: February 8, 1994
    Assignee: Her Majesty the Queen as represented by the Minister of National Defence of Her Majesty's Canadian Government
    Inventors: John C. Collyer, John R. Clark
  • Patent number: 5270360
    Abstract: A two-phase thermoplastic composition adapted for forming thermoplastic patterns. The composition comprises an organic thermoplastic pattern material and at least about 5% by weight of discrete particles of cross-linked poly(methylmethacrylate) that are physically stable at temperatures above 130.degree. F. Also disclosed are investment casting patterns of such composition and processes utilizing such composition.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: December 14, 1993
    Assignee: Yates Manufacturing Company
    Inventor: Paul Solomon
  • Patent number: 5256717
    Abstract: Hot melt adhesives having suitable open time and crystallinity properties making them especially useful as temporary adhesives are provided by a composition comprising a combination of 5 to 50% by weight of an isotactic thermoplastic polybutylene copolymer or a low density ethylene polymer with 3 to 65% by weight of a solid benzoate plasticizer.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: October 26, 1993
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Daniel Stauffer, Paul Puletti
  • Patent number: 5252421
    Abstract: An electrophotographic is disclosed, comprising a binder resin, a coloring material, and a polyalkylene, wherein the polyalkylene has an average particle volume of 0.05 .mu.m.sup.3 or more. The toner exhibits broadened fixing latitude when fixed by heat roll fixing without using any offset inhibiting liquid.
    Type: Grant
    Filed: February 13, 1991
    Date of Patent: October 12, 1993
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masanori Ichimura, Toru Murakami, Koichi Oyamada
  • Patent number: 5223562
    Abstract: A thermosetting powder coating composition comprises (a) a fluororesin having reactive group for crosslinking in the molecule which contains 10 weight % or more of fluorine and has glass transition temperature in the range from 35.degree. to 120.degree. C., (b) a hardener which can form crosslinking by reaction with the reactive group for crosslinking in the fluororesin (a) and (c) a synthetic wax or a natural wax. The amount of the fluororesin is in the range from 60 to 97 weight % and the amount of the hardener is in the range from 3 to 40 weight % based on the total of the fluororesin and the hardener. The amount of the synthetic wax or the natural wax is in the range from 0.01 to 10 weight parts based on 100 weight parts of the total of the fluororesin and the hardener.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 29, 1993
    Assignee: NOF Corporation
    Inventors: Chiaki Sagawa, Manabu Katagiri, Toru Kurashina
  • Patent number: 5189102
    Abstract: A method for producing a vinyl resin comprising the steps of dissolving or dispersing a polymerizable vinyl monomer in a polymerization solvent containing a silicone oil, and polymerizing the polymerizable vinyl monomer in the presence of a polymerization catalyst.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: February 23, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuo Tsubuko, Shinichi Kuramoto, Kazuhiko Umemura, Hidemi Uematsu, Okawara, Makoto
  • Patent number: 5176779
    Abstract: Adhesively edge-padded stack of carbonless copy paper better separates upon fanning into collated sets when a thin layer of hot-melt adhesive is used for the edge-padding. As in the prior art, the outer surfaces of each set should have a release coating such as a fluorocarbon. The layer of hot-melt adhesive includes, by weight:20-50% thermoplastic copolymer,15-50% tackifying resin, and20-60% wax having a melting point of at least 60.degree. C.As soon as the adhesive has cooled below its softening point, the stack can be fanned, thus breaking it into sets. Fanning can usually be performed within 45 seconds, because there is no need to wait for the adhesive to dry as has been necessary with the aqueous adhesives that have been used in the prior art. Preferably at least 20% by weight of the adhesive is a paraffin wax that is [.alpha.] C.sub.35 -C.sub.70 substantially straight-chain hydrocarbon.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: January 5, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kenneth J. Perrington, James M. DeWanz
  • Patent number: 5155160
    Abstract: The barrier properties of crystalline polyolefin film can be improved substantially by incorporating a precise amount of a partially incompatible wax into the polyolefin. When the polyolefin is polypropylene or polybutylene, the wax is preferably a paraffin wax. The precise amount of wax, which produces optimum improvement in barrier properties, lies in the range of about 3 to 10 percent based on the weight of the polyolefin. The range in which excellent results are obtained can be broadened by contacting the film with a cooling medium immediately after it is extruded. The film may be annealed to further improve the barrier properties.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: October 13, 1992
    Assignee: James River II, Inc.
    Inventors: Gene H. Yeh, Attila Matray, Allyn J. Ziegenhagen
  • Patent number: 5155155
    Abstract: An oxidized polyethylene wax or other wax in the form of a salt with a metal selected from groups IB, IIB, IIA, IIIA, IIIB, VIB, VIIB and VIIIB of the Periodic Table of the Elements acts as a photoactivator in a polymer composition and degrades the latter. The quantity of the additive can vary from 0.1 to 2.0% by weight, relative to the weight of the composition. The additive can be added directly or, more suitably, via a masterbatch.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: October 13, 1992
    Assignee: Hoechst Italia, S.p.A.
    Inventor: Riccardo Jurlaro
  • Patent number: 5153064
    Abstract: The invention describes a hot-melt adhesive substance for the coating of fabrics, especially of lining materials of outer wear, comprising a hot-melt adhesive paste on a copolyester basis as the base layer and a covering layer of a hot-melt adhesive. The inventive hot-melt adhesive substance is characterized in that the hot-melt adhesive paste of the base layer contains a mixture of copolyester and low-pressure polyethylene. The covering layer of hot-melt adhesive preferably contains copolyamide. When using the inventive hot-melt adhesive substance, a raster-pattern coated fabric can be obtained in which the hot-melt adhesive substance has substantially improved adhesive strength as well as a high degree of washing and cleaning stability.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: October 6, 1992
    Assignee: Kufner Textilwerke GmbH
    Inventor: Josef Hefele
  • Patent number: 5145749
    Abstract: Erasable coatings for xerography paper comprise a pigment such as calcium carbonate in a binder such as an aqueous emulsion of an acrylic polymer. The erasability of the coating is improved by replacing at least 15 wt % of the binder with a polyalkane or (preferably) polyalkene wax, such as an aqueous emulsion of a polyolefin.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: September 8, 1992
    Assignee: James River Graphics Limited
    Inventor: Michael K. Matthew
  • Patent number: 5115067
    Abstract: Disclosed is a molecularly oriented molded body of an ultra-high-molecular-weight ethylene/.alpha.-olefin copolymer having an intrinsic viscosity (.eta.) of at least 5 dl/g and such a content of an .alpha.-olefin having at least 3 carbon atoms that the number of molecules of the .alpha.-olefin is 0.1 to 15 on the average per 1000 carbon atoms, wherein the molded body shows at least two crystal fusion endothermic peaks when the measurement is conducted in the restraint state by using a differential scanning calorimeter, the molded body has at least one crystal fusion endothermic peak (Tp) at a temperature higher by at least 20.degree. C. than the inherent crystal fusion temperature (Tm) of the ultra-high-molecular-weight ethylene/.alpha.-olefin copolymer determined as the main fusion endothermic peak at the time of the second elevation of the temperature, and the quantity of heat based on said crystal fusion endothermic peak (Tp) is at least 15% based on the total fusion heat quantity.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Kazuo Yagi, Akinori Toyota
  • Patent number: 5106677
    Abstract: The barrier properties, particularly water vapor transmission rate, of compositions comprising a stryene-butadiene polymer can be improved substantially by adding from about 0.5 to 10 percent of a polyethylene type wax to the composition.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: April 21, 1992
    Assignee: James River II Inc.
    Inventors: Gene H. Yeh, Stephen O. Cook
  • Patent number: 5104921
    Abstract: A cured composition possessing excellent cohesive strength at high temperatures along with excellent adhesion, shear strength and solvent resistance is prepared by the high energy ionizing radiation initiated curing of a polymer composition comprising an alkenyl arene/conjugated diene block copolymer and a oligomer such that the unsaturation index of the composition is minimized. The radiation initiated curing of the adhesive composition is accomplished without requiring the aid of a coupling agent to promote crosslinking of the block copolymer during exposure to the radiation.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: April 14, 1992
    Assignee: Shell Oil Company
    Inventors: James R. Erickson, Earle E. Ewins, Jr.
  • Patent number: 5098943
    Abstract: A water repellent having the following components (A), (B), (C) and (D) emulsified in water:(A) a wax having a melting point of from 40.degree. to 90.degree. C.;(B) a styrene-maleic anydride copolymer;(C) a water-soluble alkaline compound; and(D) a polyvinyl alcohol having a saponification degree of at least 85 mol %.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: March 24, 1992
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Toru Tagawa, Takao Tadenuma, Yasoji Ozawa
  • Patent number: 5087669
    Abstract: A vinyl chloride polymer formulation having a chlorinated olefin polymer as an impact modifier, and an oxidized high density polyethylene homopolymer having an acid number of from about 5 to about 40 as a fusion promoter can be converted into shaped articles. The invention includes an improved olefin polymer impact modifier composition for use with vinyl chloride polymer formulations, the composition comprising a combination of said chlorinated olefin polymer and said oxidized high density polyethylene homopolymer. The vinyl chloride polymer formulation of the present invention is useful, for example, as a feedstock for the preparation of shaped articles such as vinyl siding and vinyl window frames.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: February 11, 1992
    Assignee: The Dow Chemical Company
    Inventor: Thomas G. Prejean
  • Patent number: 5081174
    Abstract: A formable, weldable, removable protective coating composition for use on metals, said coating comprising a combination of a base-neutralized acid-funtional copolymer and a wax lubricant, and further comprising a removability enhancing means such as phosphoric acid as an additive to the coating composition.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: January 14, 1992
    Assignee: PPG Industries, Inc.
    Inventor: Ellor J. VanBuskirk
  • Patent number: 5073457
    Abstract: Repositionable adhesives which display surprising latent permanent adhesive properties are described herein. These adhesives are comprised of acrylic pressure sensitive resins. These pressure-sensitive adhesive resins can be either solvent based or water based. In the case of a solvent-based adhesive system, paraffin wax is used, while in the water-based systems, latex emulsions of polyethylene are preferred.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: December 17, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Elmer Blackwell
  • Patent number: 5063271
    Abstract: 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: Grant
    Filed: May 31, 1990
    Date of Patent: November 5, 1991
    Assignee: Conoco Inc.
    Inventor: Richard L. Jones
  • Patent number: 5055498
    Abstract: The solid marking composition of the invention includes from about 15% up to about 50% by weight of a polyethylene resin component having a specific gravity in the range of from about 0.95 up to about 0.96. In addition, the composition of the invention includes from about 20% up to about 55% by weight of a compatible plasticizer, and from about 3% up to about 20% by weight active material of a pigment. Optionally, the composition may include a pigment dispersing agent, such as a fatty acid. Further additives which may advantageously employed include extenders or fillers, oxidation stabilizers, UV stabilizers, and mold release agents. The composition of the invention is fabricated into marking instruments having unexpectedly improved eraseability, ease of application, barrel breaking strength, and tip breaking strength, while eliminating bloom entirely.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: October 8, 1991
    Assignee: Binney & Smith Inc.
    Inventor: Armand E. Brachman
  • Patent number: 5041484
    Abstract: Flame retardant hot melt adhesives include atactic polypropylene having grafted thereon a ring-halogenated styrene. The compositions may also include homopolymers of the styrene monomer or equivalents, as well as non-halogenated atactic polypropylene. Tackifying agents, waxes, anti-oxidants and other additives may also be included.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: August 20, 1991
    Assignee: Great Lakes Chemical Corporation
    Inventors: Ray W. Atwell, Donna L. Collison, Nicolai A. Favstritsky, Enrico J. Termine
  • Patent number: 5041492
    Abstract: Hot melt adhesive compositions for bonding rigid polypropylene substrates comprise intimate blends of an amorphous copolyolefin copolymer, a polyolefin wax, a rosin-based ester resin and a polybutylene copolymer.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: August 20, 1991
    Assignee: Findley Adhesives, Inc.
    Inventors: George Koprowicz, Patrick Czaplewski, Michael Kaczkowski
  • Patent number: 5036129
    Abstract: Flame retardant hot melt adhesives include ethylene vinyl acetate having grafted thereon a ring-halogenated styrene. The compositions may also include homopolymers of the styrene monomer of equivalents, as well as non-halogenated ethylene vinyl acetate. Tackifying agents, waxes, anti-oxidants and other additives may also be included.
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: July 30, 1991
    Assignee: Great Lakes Chemical Corporation
    Inventors: Ray W. Atwell, Nicolai A. Favstritsky, John P. Stallings, Enrico J. Termine