Hydrocarbon Wax Patents (Class 524/487)
-
Patent number: 5106677Abstract: 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: GrantFiled: November 3, 1989Date of Patent: April 21, 1992Assignee: James River II Inc.Inventors: Gene H. Yeh, Stephen O. Cook
-
Patent number: 5104921Abstract: 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: GrantFiled: October 12, 1989Date of Patent: April 14, 1992Assignee: Shell Oil CompanyInventors: James R. Erickson, Earle E. Ewins, Jr.
-
Patent number: 5102943Abstract: 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: GrantFiled: December 4, 1990Date of Patent: April 7, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Francis M. Logullo
-
Patent number: 5096493Abstract: 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: GrantFiled: October 11, 1990Date of Patent: March 17, 1992Assignee: Eastman Kodak CompanyInventors: Kenneth W. Hyche, William C. Gose
-
Patent number: 5091454Abstract: 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: GrantFiled: March 12, 1991Date of Patent: February 25, 1992Assignee: Velsicol Chemical CorporationInventor: William D. Arendt
-
Patent number: 5081174Abstract: 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: GrantFiled: October 2, 1989Date of Patent: January 14, 1992Assignee: PPG Industries, Inc.Inventor: Ellor J. VanBuskirk
-
Patent number: 5079281Abstract: 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: GrantFiled: November 28, 1989Date of Patent: January 7, 1992Assignee: Toyoda Gosei Co., Ltd.Inventors: Junji Takeuchi, Masahiro Takimoto
-
Patent number: 5073457Abstract: 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: GrantFiled: May 17, 1990Date of Patent: December 17, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: Elmer Blackwell
-
Patent number: 5066711Abstract: 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: GrantFiled: November 15, 1989Date of Patent: November 19, 1991Assignee: The International Group, Inc.Inventors: Herman Colon, Albert Maletsky
-
Patent number: 5063271Abstract: Hot melt wax compositions and a process for producing said hot melt wax compositions are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a mixture of a fully refined paraffin wax, a petroleum wax selected from the group consisting of a recrystallized heavy intermediate wax, a microcrystalline wax and mixtures thereof, a polymeric hydrocarbon compound, a tackifier resin and optionally, a phenolic anti-oxidant.Type: GrantFiled: May 31, 1990Date of Patent: November 5, 1991Assignee: Conoco Inc.Inventor: Richard L. Jones
-
Patent number: 5055508Abstract: 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: GrantFiled: March 9, 1989Date of Patent: October 8, 1991Assignee: Idemitsu Petrochemical Co., Ltd.Inventor: Kazunari Ohtsubo
-
Patent number: 5055498Abstract: 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: GrantFiled: June 19, 1990Date of Patent: October 8, 1991Assignee: Binney & Smith Inc.Inventor: Armand E. Brachman
-
Patent number: 5047462Abstract: 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: GrantFiled: September 26, 1988Date of Patent: September 10, 1991Assignee: Huels AktiengesellschaftInventors: Helmut Kehr, Adolf Kuehnle, Heinrich Leppek, Matthias Schleinzer
-
Patent number: 5045584Abstract: 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: GrantFiled: November 3, 1989Date of Patent: September 3, 1991Assignee: Toray Silicone Company, LimitedInventors: Atushi Sasaki, Asao Harashima, Keiji Yoshida
-
Patent number: 5041492Abstract: 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: GrantFiled: February 21, 1990Date of Patent: August 20, 1991Assignee: Findley Adhesives, Inc.Inventors: George Koprowicz, Patrick Czaplewski, Michael Kaczkowski
-
Patent number: 5041484Abstract: 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: GrantFiled: June 20, 1990Date of Patent: August 20, 1991Assignee: Great Lakes Chemical CorporationInventors: Ray W. Atwell, Donna L. Collison, Nicolai A. Favstritsky, Enrico J. Termine
-
Patent number: 5041482Abstract: 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: GrantFiled: July 26, 1988Date of Patent: August 20, 1991Assignee: Adhesive TechnologiesInventors: Robert L. Ornsteen, Peter S. Melendy, Dennis J. Fitzmeyer
-
Patent number: 5037874Abstract: 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: GrantFiled: October 5, 1990Date of Patent: August 6, 1991Assignee: Exxon Chemical Patents Inc.Inventors: Hugo J. C. Nuttens, Gerard VanHaeren
-
Patent number: 5036129Abstract: 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: GrantFiled: April 17, 1990Date of Patent: July 30, 1991Assignee: Great Lakes Chemical CorporationInventors: Ray W. Atwell, Nicolai A. Favstritsky, John P. Stallings, Enrico J. Termine
-
Patent number: 5034454Abstract: Disclosed herein are crosslinkable water-dispersible acrylic copolymers which are prepared by free-radical initiated polymerization of ethylenically unsaturated monomers containing independently an active hydrogen group, a carboxyl group and a sulfonic group, wherein the polymerization is conducted in the presence of a wax. In combination with curing agents, the crosslinkable compositions are particularly useful in imparting markedly improved flow to dip coatings.Type: GrantFiled: March 3, 1989Date of Patent: July 23, 1991Assignee: PPG Industries, Inc.Inventors: Rudolf Maska, David T. McKeough, David L. Holzinger, Susan D. Klejsmit
-
Patent number: 5030677Abstract: 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: GrantFiled: October 18, 1989Date of Patent: July 9, 1991Assignee: Sumitomo Metal Mining Company LimitedInventors: Masakazu Achikita, Akihito Ohtsuka
-
Patent number: 5026752Abstract: 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: GrantFiled: August 28, 1989Date of Patent: June 25, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Toshinori Wakabayashi, Shinji Sugii
-
Patent number: 5025054Abstract: 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: GrantFiled: November 9, 1989Date of Patent: June 18, 1991Assignee: Toray Silicone Company, LimitedInventors: Keiji Yoshida, Mitsuo Hamada
-
Patent number: 5021257Abstract: The present invention is directed to a hot-melt adhesive containing at least one propylene/1-hexane copolymer. The adhesive contains an amount of a low viscosity, substantially crystalline wax, having a melting point of about 90.degree. C. to about 125.degree. C., sufficient to improve the elastic delamination resistance of the adhesive. The adhesive are particularly useful in disposable diaper construction.Type: GrantFiled: October 2, 1989Date of Patent: June 4, 1991Assignee: Eastman Kodak CompanyInventors: Bruce W. Foster, Clyde N. Clubb, Richard K. Stuart, Jr.
-
Patent number: 5021499Abstract: Hot melt adhesives containing petroleum resin tackifiers which are prepared by a process wherein (1) a C.sub.8 -- and/or C.sub.9 aromatic unsaturated hydrocarbon-containing feed (optionally containing up to 18 wt. % of C.sub.4 or C.sub.5 unsaturated aliphatic hydrocarbons) is first polymerized completely and thereafter a C.sub.5 -aliphatic unsaturated hydrocarbon-containing feed is added, polymerization continued and the reactor effluent stripped to obtain the resin. The order of polymerization may be reversed.Type: GrantFiled: July 9, 1990Date of Patent: June 4, 1991Assignee: Exxon Research and Engineering CompanyInventors: Chiaki Tochinai, Tadanao Kohara, Sadayoshi Budo, Hiroaki Masuda, Takayoshi Yoshida
-
Patent number: 5019320Abstract: 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: GrantFiled: April 23, 1990Date of Patent: May 28, 1991Assignee: Bridgestone CorporationInventors: Yoshimi Hasegawa, Shinichi Kakiuchi, Seisuke Tomita
-
Patent number: 5017659Abstract: 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: GrantFiled: November 3, 1988Date of Patent: May 21, 1991Inventor: L. A. van der Groep
-
Patent number: 5010126Abstract: A hot melt wax composition and process for producing said hot melt wax composition are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a blend of a recrystallized heavy intermediate wax, a polymeric hydrocarbon compound, a tackifier resin and a phenolic anti-oxidant.Type: GrantFiled: June 25, 1990Date of Patent: April 23, 1991Assignee: Conoco Inc.Inventor: Richard L. Jones
-
Patent number: 5007961Abstract: 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: GrantFiled: September 6, 1988Date of Patent: April 16, 1991Assignee: Eastman Kodak CompanyInventors: Kenneth W. Hyche, William C. Gose
-
Patent number: 5006583Abstract: Irregular shaped particles of cross-linked copolymer of styrene-divinylbenzene in which essentially 90% or more of the particles pass through a 100 mesh screen (U.S. Sieve Series) and essentially 50% pass through a 200 mesh screen (U.S. Sieve Series) is produced by high speed attrition milling of relatively inexpensive large-sized copolymer beads. The resulting particles are irregularly shaped cross-linked copolymer particles which are desirable and useful as a filler material for investment casting waxes. The small-sized irregularly-shaped cross-linked copolymer beads produced by high speed attrition milling essentially eliminate any "orange peel" effect on wax pattern surface and also results in improved packing of the wax composition thereby producing high quality precision parts more readily than heretofore possible.Type: GrantFiled: August 15, 1988Date of Patent: April 9, 1991Assignee: M. Argueso & Co., Inc.Inventor: Peter G. Argueso
-
Patent number: 5004778Abstract: 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: GrantFiled: May 23, 1988Date of Patent: April 2, 1991Assignee: Stamicarbon B.V.Inventors: Geert N. Waagen, Cornelis W. M. Bastiaansen, Robert Kirschbaum
-
Patent number: 5002989Abstract: The present invention is a formulated barrier composition containing tetrasodium pyrophosphate or magnesium hydroxide, high density polyethylene, epoxidzed vegetable oil, oxidized polyolefin and a paraffin or polyolefin wax. The composition has a substantially lower oxygen permeability than existing compositions and is at least equally extrudable.Type: GrantFiled: September 1, 1989Date of Patent: March 26, 1991Assignee: The Dow Chemical CompanyInventors: John A. Naumovitz, Steven R. Jenkins, Mark J. Hall, Stephen R. Betso
-
Patent number: 5001179Abstract: Recyclable hot melt adhesive compositions suitable for plastic bonding may be prepared from styrene-ethylene-butylene-styrene tri-block and/or styrene-ethylene-butylene di-block copolymers which are tackified with at least one hydrogenated resin based on alpha-methyl styrene, vinyl toluene, styrene, coumarone-indene, dicyclopentadiene or mixtures thereof, optionally containing small amounts of white mineral oil or similar diluent. In addition, the adhesive may or may not include minor amounts of the above-described pure monomer resins (specifically composed of styrene, alpha methyl styrene or vinyl toluene or mixtures thereof) in their non-hydrogenated form to serve as end block reinforcing resins.Type: GrantFiled: January 13, 1989Date of Patent: March 19, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Thomas F. Kauffman, Paul P. Puletti
-
Patent number: 4996259Abstract: Aqueous synthetic wax dispersions which contain, as an essential component of the solid substance, a partially or completely neutralized copolymer of a C.sub.2 -C.sub.4 -olefin and an unsaturated mono- or dicarboxylic acid or dicarboxylic anhydride are prepared by neutralizing and dispersing the solid substance in an aqueous medium at above the melting point of the copolymer, by a method in which the processes of neutralization and of dispersion are carried out in one extruder or in a plurality of extruders connected in series.Type: GrantFiled: August 23, 1989Date of Patent: February 26, 1991Assignee: BASF AktiengesellschaftInventors: Gernot Koehler, Juergen Schmidt-Thuemmes, Norbert Hasenbein, Lothar Schlemmer, Wolfram Dietsche
-
Patent number: 4994516Abstract: Hot melt adhesives comprising ethylene/vinyl acetate copolymer, wax, and a resin containing 5 to 80 wt. % of units derived from olefinically unsaturated aromatic compounds, 5 to 80 wt. % of units derived from C.sub.5 or C.sub.6 olefines or diolefines or a mixture thereof, and from 7 to 45% of units derived from a terpene. The hot melt adhesive composition has improved color and compatibility over ethylene/vinyl acetate copolymer and wax blends containing resins of significant portions of cyclopentadiene or dicyclopentadiene. The hot melt adhesive of the invention also show improved adhesive properties on substrate such as glass and aluminum.Type: GrantFiled: April 3, 1989Date of Patent: February 19, 1991Assignee: Exxon Research & Engineering CompanyInventor: Quoc Luvinh
-
Patent number: 4975120Abstract: 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: GrantFiled: May 24, 1988Date of Patent: December 4, 1990Assignee: Eastman Kodak CompanyInventors: Kenneth W. Hyche, William C. Gose
-
Patent number: 4968765Abstract: 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: GrantFiled: September 2, 1988Date of Patent: November 6, 1990Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Kazuo Yagi, Akinori Toyota
-
Patent number: 4965306Abstract: Hot melt wax compositions and a process for producing said hot melt wax compositions are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a mixture of a fully refined paraffin wax, a petroleum wax selected from the group consisting of a recrystallized heavy intermediate wax, a microcrystalline wax and mixtures thereof, a polymeric hydrocarbon compound, a tackifier resin and optionally, a phenolic anti-oxidant.Type: GrantFiled: February 6, 1989Date of Patent: October 23, 1990Assignee: Conoco Inc.Inventor: Richard L. Jones
-
Patent number: 4965304Abstract: 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: GrantFiled: July 5, 1988Date of Patent: October 23, 1990Assignee: The Dow Chemical CompanyInventors: James R. Bethea, Stephen R. Betso
-
Patent number: 4965305Abstract: A hot melt wax composition and process for producing said hot melt wax composition are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a blend of a recrystallized heavy intermediate wax, a polymeric hydrocarbon compound, a tackifier resin and a phenolic anti-oxidant.Type: GrantFiled: November 30, 1988Date of Patent: October 23, 1990Assignee: Conoco Inc.Inventor: Richard L. Jones
-
Patent number: 4957949Abstract: 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: GrantFiled: October 28, 1988Date of Patent: September 18, 1990Assignee: Matsui Shikiso Chemical Co., Ltd.Inventors: Masayasu Kamada, Toshihisa Maeda, Tadashi Kobayashi, Goro Shimizu
-
Patent number: 4957960Abstract: 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: GrantFiled: January 30, 1990Date of Patent: September 18, 1990Assignee: Loctite (Ireland) Ltd.Inventors: Stephen J. Harris, John G. Woods, John M. Rooney, Marueen G. MacManus, John Guthrie
-
Patent number: 4954550Abstract: 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: GrantFiled: April 1, 1988Date of Patent: September 4, 1990Assignee: Societe Chimique des Charbonnages S.A.Inventor: Kurt Sorg
-
Patent number: 4952625Abstract: 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: GrantFiled: July 10, 1989Date of Patent: August 28, 1990Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Tomoo Shiohara, Hiroshi Abe
-
Patent number: 4942193Abstract: A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer which contains wax.Type: GrantFiled: October 11, 1988Date of Patent: July 17, 1990Assignee: PPG Industries, Inc.Inventors: Ellor J. Van Buskirk, Rudolf Maska
-
Patent number: 4939193Abstract: 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: GrantFiled: October 6, 1988Date of Patent: July 3, 1990Assignee: Hoechst AktiengesellschaftInventors: Erwin Dietz, Siegfried Schiessler
-
Patent number: 4927871Abstract: 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: GrantFiled: July 15, 1988Date of Patent: May 22, 1990Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Yoshiji Ohori, Hirofumi Harazoe
-
Patent number: 4927875Abstract: 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 vinType: GrantFiled: November 29, 1989Date of Patent: May 22, 1990Assignee: PPG Industries, Inc.Inventors: Rudolf Maska, William A. Essary
-
Patent number: 4919724Abstract: 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: GrantFiled: January 17, 1989Date of Patent: April 24, 1990Assignee: Hercules IncorporatedInventors: Marco F. Cenisio, Vido J. Vareika
-
Patent number: 4918130Abstract: 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: GrantFiled: December 9, 1988Date of Patent: April 17, 1990Assignee: Buncho CorporationInventors: Yosimi Kano, Koji Seki, Ryoichi Seki