Hydrocarbon Wax Patents (Class 524/487)
  • 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: 5102943
    Abstract: Thermoformed trays prepared from a blend of 90 to 99.9 percent of polyethylene terephthalate resin, a small amount of sodium ion, and a small amount of wax exhibit effective crystallization rates and improved trimming and stacking properties.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: April 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Francis M. Logullo
  • Patent number: 5096493
    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: October 11, 1990
    Date of Patent: March 17, 1992
    Assignee: Eastman Kodak Company
    Inventors: Kenneth W. Hyche, William C. Gose
  • Patent number: 5091454
    Abstract: An adhesive composition comprising a polymer, a tackifier, a wax and a plasticizing amount in the range of 5-40% by weight of 1,4-cyclohexane dimethanol dibenzoate.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: February 25, 1992
    Assignee: Velsicol Chemical Corporation
    Inventor: William D. Arendt
  • 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: 5079281
    Abstract: A fiber-reinforced polypropylene resin composition is disclosed, comprising (1) a mixed polymer of polypropylene and carboxyl group containing polypropylene, (2) a silane treated reinforcing fiber, and (3) a coloring component of zinc sulfide and carbon black with a dispersing agent compounded thereto, said dispersing agent is polyethylene wax and the amount of said dispersing agent added to 20 to 50 parts by weight per 100 parts by weight of the zinc sulfide and carbon black.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: January 7, 1992
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Junji Takeuchi, Masahiro Takimoto
  • 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: 5066711
    Abstract: A wetness indicating hot-melt adhesive which changes color in response to the presence of moisture is disclosed, which contains 20 to 70 wt. % of polymer, about 28 to 10 wt. % of which is water sensitive polymer; 25 to 60% of organic acid which is selected from a high acid fatty acid, or rosin acid, or a combination thereof; 0 to 40% of water soluble wax; 0 to 60 wt. % of glycerol monostearate; 0 to 55 wt. % of hydrogenated castor oil; 0 to 15 wt. % of polyalkylene wax; 0 to 60 wt. % of compatible plasticizer; and a wetness indicating agent which changes the color of the composition in response to moisture therein. The time of response of the color change can be controlled from about one second to a somewhat larger value as desired.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: November 19, 1991
    Assignee: The International Group, Inc.
    Inventors: Herman Colon, Albert Maletsky
  • 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: 5055508
    Abstract: The present invention relates to a polycarbonate resin composition comprising:100 parts by weight of a polycarbonate resin;(A) 00.5 to 1 part by weight of an ester of saturated fatty acid having 10 to 30 carbon atoms and monohydric or polyhydric alcohol having 2 to 30 carbon atoms;(B) 0.05 to 1 part by weight of paraffin wax, and(C) 0 to 0.001 part by weight as a phosphorus atom of at least one phosphorus compound selected from the group consisting of phosphorus acid and phosphorous acid esters, wherein the total amount of the components (A) and (B) is 0.1 to 1 part by weight.The present invention further relates to a polycarbonate resin composition comprising:100 parts by weight of a polycarbonate resin;(D) 0.05 to 1 part by weight of .beta.-long side chain alcohol/behenic acid ester or long chain aliphatic alcohol; and(E) 0 to 0.001 part by weight as a phosphorus atom of at least one phosphorus compound selected from the group consisting of phosphorous acid and phosphorus acid esters.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: October 8, 1991
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventor: Kazunari Ohtsubo
  • 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: 5047462
    Abstract: A solid coating composition based on a polyolefin containing a filler is disclosed. The polyolefin is partly or completely reacted with either an unsaturated organic acid or an unsaturated organic acid anhydride.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: September 10, 1991
    Assignee: Huels Aktiengesellschaft
    Inventors: Helmut Kehr, Adolf Kuehnle, Heinrich Leppek, Matthias Schleinzer
  • Patent number: 5045584
    Abstract: A polish including a film forming wax material and an organopolysiloxane elastomer. The elastomer is in the form of particles mixed with the film forming wax. The particles are spherical and have an average diameter of from about 0.3 um to about 30 um. The polish contains at least one additive selected from the group consisting of organic solvents, silicone oils, and surfactants. The film forming wax material may be one of carnauba wax, montan wax, candelilla wax, ceresin wax, paraffin waxes, and beeswax.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: September 3, 1991
    Assignee: Toray Silicone Company, Limited
    Inventors: Atushi Sasaki, Asao Harashima, Keiji Yoshida
  • 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: 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: 5041482
    Abstract: Hot-melt adhesives, useful for both glue-port 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 tackifyin resin and/or wax. The resulting composition has a shape viscosity profile, which is readily achieved, e.g., by using a high melt index adhesive polymer as an essential component.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: August 20, 1991
    Assignee: Adhesive Technologies
    Inventors: Robert L. Ornsteen, Peter S. Melendy, Dennis J. Fitzmeyer
  • Patent number: 5037874
    Abstract: Synthetic polyethylene wax having low molecular weight of 250 to 3000 and a density of 0.930 to 0.950 is prepared in a high pressure process at pressures of at least 800 bar using a carbonyl compound such as acetaldehyde as chain transfer agent. The resulting wax with incorporated CO has good compatibility in hot melt systems, and may be stripped to remove light ends, increase density and crystallinity and improve thermal stability.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: August 6, 1991
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Hugo J. C. Nuttens, Gerard VanHaeren
  • 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
  • Patent number: 5034454
    Abstract: 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: Grant
    Filed: March 3, 1989
    Date of Patent: July 23, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Rudolf Maska, David T. McKeough, David L. Holzinger, Susan D. Klejsmit
  • Patent number: 5030677
    Abstract: Disclosed is a composition for injection moulding which is composed of a sinterable powder comprising at least one metal or alloy and a binder. The binder contains from 10 to 80% by weight of a low-density polyethylene from 10 to 80% by weight of a paraffin wax and from 5 to 35% by weight of a boric acid ester. The ratio of the sinterable powder to the binder in the composition is from 30 to 70% by volume of the former and from 70 to 30% by volume of the latter. The binder can be removed from the green body to be prepared by injection-moulding the composition unexpectedly rapidly without interfering with the properties of the final product sintered.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: July 9, 1991
    Assignee: Sumitomo Metal Mining Company Limited
    Inventors: Masakazu Achikita, Akihito Ohtsuka
  • Patent number: 5026752
    Abstract: A hot melt adhesive consisting essentially of amorphous polypropylene, styrene-based themoplastic elastomer, tackifier and wax having a dissipation factor of about 0.010 or less at 1 kilohertz at 23.degree. C., and a volume resistivity of at least about 1.times.10.sup.14 ohm-cm at 23.degree. C. Such adhesives exhibit good shear strength and shock resistance.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: June 25, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Toshinori Wakabayashi, Shinji Sugii
  • Patent number: 5025054
    Abstract: A polish including a film forming wax material and a silicone rubber. The rubber is in the form of particles mixed with the film forming wax, and the silicone rubber particles contain a silicone oil. The particles have an average diameter of from about 0.3 .mu.m to about 30 .mu.m. The polish includes at least one additive selected from the group consisting of organic solvents, a second silicone oil, and surfactants. The film forming wax material is one of carnauba wax, montan wax, candelilla wax, ceresin wax, paraffin waxes, or beeswax. The silicone rubber forming the particles is one of addition reaction curable silicone rubber compositions, condensation reaction curable silicone rubber compositions, organic peroxide curable organopolysiloxane compositions, or high energy curable silicone rubber compositions.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: June 18, 1991
    Assignee: Toray Silicone Company, Limited
    Inventors: Keiji Yoshida, Mitsuo Hamada
  • Patent number: 5021257
    Abstract: 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: Grant
    Filed: October 2, 1989
    Date of Patent: June 4, 1991
    Assignee: Eastman Kodak Company
    Inventors: Bruce W. Foster, Clyde N. Clubb, Richard K. Stuart, Jr.
  • Patent number: 5021499
    Abstract: 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: Grant
    Filed: July 9, 1990
    Date of Patent: June 4, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Chiaki Tochinai, Tadanao Kohara, Sadayoshi Budo, Hiroaki Masuda, Takayoshi Yoshida
  • Patent number: 5019320
    Abstract: A covering composition comprising an ionomer resin and a low-molecular weight polyethylene wax has improved impact resistance. A golf ball having a core enclosed in a cover thereof is fully durable and exhibits satisfactory flying performance.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: May 28, 1991
    Assignee: Bridgestone Corporation
    Inventors: Yoshimi Hasegawa, Shinichi Kakiuchi, Seisuke Tomita
  • Patent number: 5017659
    Abstract: This invention relates to a polymer composition comprising per 100 parts by weight of the composition(a) 30-60 parts by weight of copolymer of ethylene and 1-olefin having at least 6 C atoms,(b) 35-65 parts by weight of copolymer of ethylene and vinyl acetate,(c) 1-10 parts by weight of ethylene-propylene-diene rubber,said polymer composition being obtained by reaction at elevated temperature of the components.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: May 21, 1991
    Inventor: L. A. van der Groep
  • Patent number: 5010126
    Abstract: 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: Grant
    Filed: June 25, 1990
    Date of Patent: April 23, 1991
    Assignee: Conoco Inc.
    Inventor: Richard L. Jones
  • Patent number: 5007961
    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: September 6, 1988
    Date of Patent: April 16, 1991
    Assignee: Eastman Kodak Company
    Inventors: Kenneth W. Hyche, William C. Gose
  • Patent number: 5006583
    Abstract: 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: Grant
    Filed: August 15, 1988
    Date of Patent: April 9, 1991
    Assignee: M. Argueso & Co., Inc.
    Inventor: Peter G. Argueso
  • Patent number: 5004778
    Abstract: An ultrastretchable polymer material is prepared starting from polyolefine particles with a low entanglement density and a weight average molecular weight (M.sub.w) higher than 400,000, the particles being densified to a coherent material together with a process auxiliary material at an elevated temperature, but below the melting point of the pure polyolefine.From this ultrastretchable material, objects with a high tensile strength and a high modulus can be produced by stretching it, for instance, at a temperature which is at most 70.degree. C. below the temperature at which the polyolefine melts under the prevailing conditions, if desired after removal of the process auxiliary agent present in it.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: April 2, 1991
    Assignee: Stamicarbon B.V.
    Inventors: Geert N. Waagen, Cornelis W. M. Bastiaansen, Robert Kirschbaum
  • Patent number: 5002989
    Abstract: 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: Grant
    Filed: September 1, 1989
    Date of Patent: March 26, 1991
    Assignee: The Dow Chemical Company
    Inventors: John A. Naumovitz, Steven R. Jenkins, Mark J. Hall, Stephen R. Betso
  • Patent number: 5001179
    Abstract: 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: Grant
    Filed: January 13, 1989
    Date of Patent: March 19, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas F. Kauffman, Paul P. Puletti
  • Patent number: 4996259
    Abstract: 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: Grant
    Filed: August 23, 1989
    Date of Patent: February 26, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Gernot Koehler, Juergen Schmidt-Thuemmes, Norbert Hasenbein, Lothar Schlemmer, Wolfram Dietsche
  • Patent number: 4994516
    Abstract: 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: Grant
    Filed: April 3, 1989
    Date of Patent: February 19, 1991
    Assignee: Exxon Research & Engineering Company
    Inventor: Quoc Luvinh
  • Patent number: 4975120
    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: May 24, 1988
    Date of Patent: December 4, 1990
    Assignee: Eastman Kodak Company
    Inventors: Kenneth W. Hyche, William C. Gose
  • Patent number: 4968765
    Abstract: Disclosed is a molecularly oriented molded body of an ultra-high-molecular-weight ethylene/polyene copolymer having an intrinsic viscosity (.eta.) of at least 5 dl/g and such a content of a polyene that the number of molecules of the polyene is 0.01 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/polyene 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: September 2, 1988
    Date of Patent: November 6, 1990
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Kazuo Yagi, Akinori Toyota
  • Patent number: 4965306
    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: February 6, 1989
    Date of Patent: October 23, 1990
    Assignee: Conoco Inc.
    Inventor: Richard L. Jones
  • Patent number: 4965304
    Abstract: The present invention concerns a polymeric composition formed from a vinylidene chloride interpolymer; an olefinic wax and oil and, in one embodiment, a salt of an acid; and in another embodiment, a polyolefin containing up to a minor amount of oxygen, said polyolefin being capable of lowering the frictional coefficient and the mechanical energy to extrude of the polymeric composition.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: October 23, 1990
    Assignee: The Dow Chemical Company
    Inventors: James R. Bethea, Stephen R. Betso
  • Patent number: 4965305
    Abstract: 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: Grant
    Filed: November 30, 1988
    Date of Patent: October 23, 1990
    Assignee: Conoco Inc.
    Inventor: Richard L. Jones
  • Patent number: 4957949
    Abstract: Disclosed is a thermochromic color masterbatch for use in a thermoplastic resin comprising a wax having substantially homogeneously dispersed therein a thermochromic granular material which is coated with a hydrophilic high-molecular weight substance, said thermochromic granular material being a mixture of a thermochromic composition comprising an electron-donating chromogen, an electron acceptor and a solvent with a thermosetting resin.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: September 18, 1990
    Assignee: Matsui Shikiso Chemical Co., Ltd.
    Inventors: Masayasu Kamada, Toshihisa Maeda, Tadashi Kobayashi, Goro Shimizu
  • Patent number: 4957960
    Abstract: An encapsulating composition for electronic devices comprises a curable material such as a silicone resin and an ion scavenger compound selected from certain calixarene or oxacalixarene compounds in which at least half of the phenolic groups have been substituted by specific groups and certain silacrown compounds. Exemplary ion scavenger compounds include ##STR1## the tetraethyl acetate of 7, 13, 19, 25-tetra-tertbutyl-27, 28, 29, 30-tetrahydroxy-2,3-dihomo-3-oxacalix-4-arene and 1,1-dimethasila-17-crown-6.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: September 18, 1990
    Assignee: Loctite (Ireland) Ltd.
    Inventors: Stephen J. Harris, John G. Woods, John M. Rooney, Marueen G. MacManus, John Guthrie
  • Patent number: 4954550
    Abstract: System for thermoplastic cross-linking adhesive, preparation thereof and corresponding method of gluing.This system for thermoplastic adhesives includes (A) a first composition without anhydride groups, containing: (a) at least one polymer chosen from the thermoplastic polymers and the synthetic rubbers; (b) at least one compound containing at least one group which can react with anhydride groups; (c) at least one tackifying resin; and (d) if desired, at least one plasticizer; (B) a second composition containing constituents Ba, Bc and Bd which are respectively analogous to the constituents Aa, Ac and Ad, and (b) at least one polymer containing anhydride goups; and (C) at least one activator of the reaction between the reactive groups of Ab and the anhydride functions of Bb. Advantageously the activatior (C) is wholly incorporated in the composition A and/or in the composition B, so as to form a two-component system.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: September 4, 1990
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventor: Kurt Sorg
  • Patent number: 4952625
    Abstract: A process for producing a thermoplastic ultrahigh-molecular-weight polyethylene composition having excellent moldability, which comprises mixing at room temperature to 100.degree. C. an ultrahigh-molecular-weight polyethylene having an average molecular weight of at least 2,000,000 with an amount, effective for acting as a solvent to said polyethylene and improving the flowability of the polyethylene, of a flowability improver selected from the group consisting of (a) styrene, (b) alpha-methylstyrene, (c) chlorinated styrene and (d) a mixture of (a) and (b), wherein the amount of the flowability improver is 3 to 30 parts by weight for styrene and 3 to 30 parts by weight for alpha-methylstyrene and styrene, per 100 parts by weight of the ultrahigh-molecular-weight polyethylene, and optionally admixing at least one member of the group consisting of a pigment, carbon black, a stabilizer, a lubricant and an inorganic filler.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: August 28, 1990
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tomoo Shiohara, Hiroshi Abe
  • Patent number: 4942193
    Abstract: 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: Grant
    Filed: October 11, 1988
    Date of Patent: July 17, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Ellor J. Van Buskirk, Rudolf Maska
  • Patent number: 4939193
    Abstract: The .alpha.-modification of cis-naphthoylenebis(benzimidazole) is unstable in many media and up to date has therefore only been used as a vat dye. However, according to the invention, the .alpha.-modification can readily be used for pigmenting in the mass polyolefins such as polyethylene, polypropylene or analogous copolymers. During pigmenting, the pigment which is prepared in a conventional manner, is stable in that modification and produces strong red dyeings.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: July 3, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erwin Dietz, Siegfried Schiessler
  • Patent number: 4927871
    Abstract: Disclosed is a process for producing a modified ultrahigh-molecular-weight polyolefin composition, which comprises mixing a powder of an ultrahigh-molecular-weight polyolefin (A) having an intrinsic viscosity of at least 5 dl/g, a flowability improver (B) having a melting point lower than the melting point of the ultrahigh-molecular-weight polyolefin (A), a monomer (C) having an olefinically unsaturated bond and a radical initiator (D) with stirring at the melting point of the flowability improver (B) or a higher temperature but below the melting point of the ultrahigh-molecular-weight polyolefin (A), and then melt-kneading them at the melting point of the ultrahigh-molecular-weight polyolefin (A) or a higher temperature to react the monomer (C) with the ultrahigh-molecular-weight polyolefin (A).
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: May 22, 1990
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yoshiji Ohori, Hirofumi Harazoe
  • Patent number: 4927875
    Abstract: Disclosed is a method for preparing an aqueous composition of low viscosity and low volatile organic solvent content which comprises: (A) addition polymerizing in solution a first monomer composition containing from 1 percent to 15 percent by weight of an epoxy-functional vinyl monomer and from 99 percent to 85 percent by weight of at least one other copolymerizable vinyl monomer in the presence of a polyester polymer having an acid value on solids of from 10 to 85 and a weight average molecular weight of from 500 to 2,000 until the epoxy functionally of the epoxy-functional vinyl monomer has been essentially completely reacted, to form a first product (1), and thereafter, (B) addition polymerizing in the aforesaid first product (1), a second monomer composition containing from 3 to 50 percent by weight, based on the total weight of vinyl monomers from parts (A) and (B), of an ethylenically unsaturated carboxylic acid and at least one other copolymerizable vinyl monomer different from the epoxy-functional vin
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: May 22, 1990
    Assignee: PPG Industries, Inc.
    Inventors: Rudolf Maska, William A. Essary
  • Patent number: 4919724
    Abstract: Stabilized aqueous emulsions of ketene dimer and nonreactive hydrophobe and method for sizing unbleached fibers and undigested wood chips for use in building products are provided.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: April 24, 1990
    Assignee: Hercules Incorporated
    Inventors: Marco F. Cenisio, Vido J. Vareika
  • Patent number: 4918130
    Abstract: An eraser comprises a styrene thermoplastic elastomer as a matrix with a hydrocarbon resin and a polyolefin included therein. The styrene thermoplastic elastomer is selected from the group which consists of styrene-butadiene copolymers, styrene-isoprene copolymers, styrene-ethylene-butylene copolymers and styrene-ethylene-propylene copolymers, and the hydrocarbon is a terpene resin or hydrogenated terpene resin, and the polyolefin is polyethylene or polypropylene.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: April 17, 1990
    Assignee: Buncho Corporation
    Inventors: Yosimi Kano, Koji Seki, Ryoichi Seki