Hydrocarbon Wax Patents (Class 524/487)
  • 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: 5416152
    Abstract: A polyacetal molding composition comprising, as the active additive, at least onea) ester of long-chain monocarboxylic acids (C.sub.22 to C.sub.34) with mono- or polyhydric alcohols (C.sub.2 to C.sub.8), in the presence or absence of alkali metal and/or alkaline earth metal salts of the carboxylic acids mentioned, and/orb) polyethylene wax, is distinguished by a reduced tendency toward melt fracture. Such molding compositions can advantageously be employed in the production of shaped articles which show no undesirable defects in the surface.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: May 16, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dietrich Fleischer, Andreas Kirst, Klaus Kohlhepp, Hans-Dieter Sabel
  • Patent number: 5414035
    Abstract: The present invention provides an external lubricant composition for calendered vinyl polymer. The external lubricant provides rigid vinyl polymer compositions having improved plate out resistance, clarity, release, and stability. The external lubricant comprises an effective amount for lubricating vinyl polymer of polyethylene having a Brookfield viscosity at a temperature of 150.degree. C. of greater than about 85,000 centipoises and an acid number as determined by standardized titration of KOH of between about 5 and about 9.Sheets of the calendered vinyl polymer are used for blister packs and credit cards.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: May 9, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Robert Lindner, Vincent Clarke
  • Patent number: 5412029
    Abstract: A protective material, based on poly-.alpha.-olefins, capable of easy application in molten form, is distinguished by a balanced pattern of properties, good adhesion and good recycling capability. The present protective materials contain (I) not less than 50% by weight of one or more largely amorphous poly-.alpha.-olefins, composed of (a) 3 to 75% by weight of one or more .alpha.-olefins containing 4 to 10 carbon atoms, (b) 25 to 95% by weight of propene, and (c) 0 to 20% by weight of ethene; (II) not more than 30% by weight of other olefin homo- and copolymers which may be either largely amorphous or preferably partially crystalline; and (III) not more than 40% by weight of additives which are standard in the plastic sector. Such protective materials can be used in particular in the underfloor region of motor vehicles.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: May 2, 1995
    Assignee: Huels Aktiengesellschaft
    Inventors: Rainer Elm, Helmut Kehr, Adolf Kuhnle, Matthias Schleinzer
  • Patent number: 5393811
    Abstract: This invention relates to a composition and method for improving the storage stability of an asphalt that contains a higher molecular weight polymer having a number average molecular weight of at least about 10,000 which comprises adding a storage stable improving amount of a polymerized alpha-olefin prepared from an alpha-olefin of the formula ##STR1## where R is C.sub.6 to C.sub.50 alkyl, R.sup.1 is hydrogen or C.sub.6 to C.sub.50 alkyl, wherein the polymerized alpha-olefin has a number average molecular weight of from about 500 to 5,000 and is characterized in that it has a congealing and melting point which is essentially no higher than the congealing and melting point of the alpha-olefin from which it is prepared.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: February 28, 1995
    Assignee: Exxon Research and Engineering Company
    Inventors: Lyle E. Moran, Katherine L. Sokol
  • 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: 5368946
    Abstract: The moisture barrier and heat seal properties of wax coatings on packaging materials are improved by blending with the wax from about 5 to 15 percent of a styrene/ethylene-butylene/styrene block copolymer.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: November 29, 1994
    Assignee: James River Paper Company, Inc.
    Inventors: Reinhard D. Bohme, Bobby J. Lerew
  • Patent number: 5356971
    Abstract: A thermosetting powder coating composition which contains a resin composition containing (a) 60 to 97 weight % of 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) 3 to 40 weight % of a hardener which can form crosslinking by reaction with the reactive group for crosslinking in the fluororesin (a), (c) 0.01 to 10 weight parts of a synthetic wax or a natural wax based on 100 weight parts of the resin composition and (d) 0.001 to 1.0 weight parts of a material as a coupling agent based on 100 weight parts of the resin composition, forms a coating layer which has the same degree of water repellency and slipping property as those formed from polytetrafluoroethylene powder while the excellent weatherability, acid resistance and adhesion to substrates are retained.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: October 18, 1994
    Assignee: NOF Corporation
    Inventors: Chiaki Sagawa, Manabu Katagiri, Toru Kurashina
  • Patent number: 5350807
    Abstract: A composition is provided, comprising (1) a narrow molecular weight distribution component having an Mw/Mn in the range of about 1.0 to about 2.0 and a weight average molecular weight in the range of about 500 to about 7,500 comprising an ethylene homopolymer; and (2) a broad molecular weight distribution component having an Mw/Mn greater than or equal to about 3.0 and a weight average molecular weight in the range of about 100,000 to about 750,000 comprising and ethylene copolymer; wherein said narrow molecular weight distribution component is present in the polymer composition in an amount of at least about 10 weight percent as based on the total weight of the polymer composition. In another embodiment, the narrow molecular weight distribution component further comprises an ethylene/hexene copolymer.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: September 27, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Ted M. Pettijohn, Kevin J. Hess
  • 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: 5346737
    Abstract: Incorporation of at least one lubricant and an ethylene-based polymer of the formula E/X/Y wherein E is ethylene, X is methyl acrylate, butyl acrylate, or ethyl acrylate, and Y is glycidyl methacrylate, glycidyl acrylate, or glycidyl vinyl ether into polyacetal compositions results in compositions having good wear resistance and good melt processing thermal stability. The compositions are useful, for example, when molded into parts to be used in sliding applications, such as gears, cams, and conveyor chains.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 13, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Tatsu-Hiro Takahashi, Toshikazu Kobayashi
  • Patent number: 5340869
    Abstract: A binder composition comprising a petroleum resin, an aromatic heavy mineral oil, a thermoplastic elastomer, an ethylene copolymer and a waxy substance has a high viscosity at 60.degree. C. and a low viscosity at high temperatures, and can provide a mixture together with aggregate having remarkably high compressive strength.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: August 23, 1994
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Masao Isobe, Yoshio Aizawa, Kenichi Kogo, Chuzo Yoshida
  • 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: 5334639
    Abstract: An aqueous starch oil sizing composition is provided which produces improved processibility in woven and non-woven applications. The sizing combines a high amylose corn starch which has been derivatized with propylene oxide, with a low amylose highly crosslinked corn starch. The sizing also includes lubricants which may be oils or waxes and a lubricant which is the salt of a polyamino functional polyamide resin. Other emusifiers, humectants, lubricants, defoamers, and biocides may be present. The size also includes a silane coupling agent such as gamma glycidoxy propyl trimethoxy silane which can be hydrolyzed. Strands of glass fiber which have been treated with this size have shown a reduced tendency to shed the size from the strands, a reduction in the buildup of broken filaments or "fuzz" on processing equipment and reduced strand breakage.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: August 2, 1994
    Assignee: PPG Industries, Inc.
    Inventor: William B. Rice
  • 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: 5331023
    Abstract: This invention relates to thermoplastic, pressure-sensitive solid adhesives capable of transferring an adhesive film to a substrate by friction rubbing of the adhesive on the substrate. The adhesives of this invention consist essentially of polyisobutylene, wax and optionally an adhesive promoter resin. Said ingredients are within certain proportions, molecular weights, melting points, or hardness values.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: July 19, 1994
    Assignee: Borden, Inc.
    Inventors: Peter S. Columbus, Yogeshbhai B. Patel
  • 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: 5328696
    Abstract: Hot-melt silicone pressure sensitive adhesive compositions containing organic waxes, methods of using the compositions and devices made using the compositions are disclosed. The hot-melt silicone pressure sensitive adhesive compositions include a mixture of (i) a silicate resin, (ii) a silicone fluid, and (iii) an organic wax having a melting point of between 30.degree. C. and 150.degree. C. The organic wax decreases dynamic viscosity of the adhesive at temperatures equal to or below about 200.degree. C.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: July 12, 1994
    Assignee: Dow Corning Corporation
    Inventor: Ross A. Noel
  • Patent number: 5326413
    Abstract: Novel lower temperature hot melt adhesive and coating composition that melts at temperatures less than 190.degree. F. (about 87.8.degree. C). This composition has a sufficient modulus to bind ophthalmic lenses to metal blocks during grinding processes. The composition also exhibits low melt viscosity and may be mechanically removed without leaving significant residue. Composition comprises a resin, a tackifier, a wax (generally with a molecular weight less than 600), and an optional stabilizer.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: July 5, 1994
    Assignee: Pearle, Inc.
    Inventors: Pascal E. Esemplare, Ronald W. Gumbs
  • 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: 5296129
    Abstract: A paraffin wax composition comprises straight-chain saturated hydrocarbons, wherein the content of each of the straight-chain hydrocarbons having the number of carbons being 22 to 44, respectively, is not less than 2% by weight relative to the entire straight-chain saturated hydrocarbons. A rubber composition is also disclosed, which comprises a rubber and this paraffin wax composition, wherein 1 to 10 parts by weight of the above paraffin wax composition is blended relative to 100 parts by weight of a diene rubber.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: March 22, 1994
    Assignee: Bridgestone Corporation
    Inventors: Nobumasa Ikeda, Masanori Tajima
  • Patent number: 5284896
    Abstract: Rubber compositions of a selected base rubber and a specified paraffin was containing 50% or more of a normal paraffin and having a carbon area ratio of less than 4.0 as determined by gas chromatography within a carbon number range of from 23 to 42. The ratio is derived by counting a first paraffin content which is defined by the paraffin of maximum content in the wax and a second paraffin content which is defined by the paraffin of minimum content in the wax and thereafter dividing the first paraffin content by the second paraffin content. The composition is highly stable in initial tack with less dependence on temperature before curing.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: February 8, 1994
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Jun Shimada, Shigeru Shinoda, Kazuhiro Yamada
  • Patent number: 5283061
    Abstract: A color display facsimile of a cosmetic product comprised of the formulation of an original cosmetic product and prescribed amounts of each of a thermoplastic, copolymeric hardening agent and a hydrocarbonous-based temperature control component. The resultant display facsimile is capable of exhibiting the exact-likeness characteristics of true color, size, and shape of the original cosmetic product. The method for preparing said color display facsimile is also disclosed.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: February 1, 1994
    Assignee: Revlon Consumer Products Corporation
    Inventors: Melvin E. Kamen, Philip Bernstein, Rene T. Rivero
  • Patent number: 5281652
    Abstract: Emulsifiable linear polyethylene compositions which exhibit good hardness and color characteristics can be obtained by oxidizing a blend of about 90 to 60% by weight of either linear low density polyethylene or high density polyethylene and about 10 to 40% by weight paraffin wax to an acid number of 12 to 30 mg KOH/g. The water emulsions obtained from the emulsifiable polyethylene compositions are useful as textile lubricants and fruit coatings.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: January 25, 1994
    Assignee: Eastman Kodak Company
    Inventor: Gregory A. Cook
  • Patent number: 5275589
    Abstract: The present invention is directed to a rubber based non-pressure sensitive hot melt adhesive composition and disposable diapers of the two or three ply type that are constructed using the adhesive. The rubber based non-pressure sensitive hot melt of the present invention comprises:(A) from about 15% to about 39% of A-B-A or A-B-A-B-A-B multi-block copolymer wherein polymer blocks A are styrene blocks and polymer blocks B are butadiene blocks or hydrogenated butadiene blocks and wherein said polymer blocks A comprise from about 15 parts to about 60 parts per 100 parts polymer;(b) from about 50% to about 75% by weight of one or more compatible tackifying resins having a composite Ring and Ball softening point from about 25.degree. C. to about 50.degree. C.;(c) from about 2.5% to about 10% by weight of one or more waves; and(d) from about 0.1% to about 1.5% by weight of one or more antioxidant type stabilizers.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: January 4, 1994
    Assignee: H. B. Fuller Company
    Inventor: Frank Bozich
  • 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: 5262471
    Abstract: A resin composition for masterbatch, which comprises 5 to 90 wt. % of modified polyolefin resin and 5 to 70 wt. % of carbon black having a mean particle size of 15 to 120 m.mu. and an oil absorption value of more than 50 ml/100 g of which volatile components are less than 3.5 wt. %. The fluidity of the resin composition for masterbatch of the invention is excellent even in a high concentration of carbon black, and is uniformly dispersed in a base resin in a short time.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: November 16, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Mutsuo Akao
  • Patent number: 5258437
    Abstract: A silicone putty composition having high impact resilience immediately after preparation and providing a soft silicone putty having low plasticity is obtained by blending (1) a diorganosiloxane of the formula:R.sub.n SiO.sub.(4-n)/2wherein R is a substituted or unsubstituted monovalent hydrocarbon group and n is a number of from 1.98 to 2.02, (2) an organopolysiloxane having a terminal alkoxy group, (3) boric acid or boron oxide, and (4) liquid paraffin. The composition is suited for use in toys and dampers.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: November 2, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshio Takeuchi, Masaharu Takahashi
  • 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: 5252639
    Abstract: The molding resin composition of this invention comprises a resin contained a releasing a agents formulated with a release agent and a metal chelate compound.This resin composition is improved an good adhesivity, high moisture resistivity and a good moldability.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: October 12, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinetsu Fujieda, Akira Yoshizumi, Kazutaka Matsumoto, Hisayuki Hirai
  • Patent number: 5240986
    Abstract: The present invention relates to a polycarbonate resin composition comprising:100 parts by weight of a polycarbonate resin;(A) 0.05 to 1 part by weight of long chain aliphatic alcohol represented by the general formula: C.sub.n H.sub.2n+1 OH wherein n is 25 or more; and(B) 0 to 0.001 part by weight as phosphorus atom of at least one phosphorus compound selected from the group consisting of phosphorous acid and phosphorous acid estersThe composition of the present invention is excellent in heat resistance and hydrolytic resistance, and further has good mold releasing properties.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: August 31, 1993
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventor: Kazunari Ohtsubo
  • Patent number: 5231118
    Abstract: The invention relates to a pressure-activatible correcting tape, which has a conventional carrier and a lift-off layer for removing typed or printed type images, the lift-off layer containing a wax, a binder and optionally further additives. This correcting tape is characterized in that the lift-off layer contains approximately 5 to 35% by weight of butyl rubber, approximately 30 to 90% by weight of wax and approximately 0.1 to 5% by weight of a dispersant having a dispersing action in an aqueous medium for the aforementioned substances. The lift-off layer can be produced by means of an aqueous coating liquid, which is environmentally advantageous compared with organic dispersants. This correcting tape can be used without restriction and independently of the type of typewriter.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: July 27, 1993
    Assignee: Caribonum Limited
    Inventors: Ian Hogarth, Andrew Scott, Christine Abbott, Robert I. Wilkinson
  • Patent number: 5229450
    Abstract: A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: July 20, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Ellor J. Van Buskirk, Rudolf Maska
  • 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: 5221335
    Abstract: In the embodiments described in the specification, a stabilized, pigmented hot melt ink contains a thermoplastic vehicle, a coloring pigment, and a dispersion-stabilizing agent to inhibit settling or agglomeration of the pigment when the ink is molten comprising 1.5 to 20 weight percent of a nitrogen-modified acrylate polymer. A preferred dispersion-stabilizing agent is the nitrogen-modified methacrylate polymer marketed by Rohm and Haas as Plexol 1525.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: June 22, 1993
    Assignee: Coates Electrographics Limited
    Inventors: Kevin G. Williams, John P. N. Haxell, Derek E. Wilson
  • Patent number: 5212218
    Abstract: Improved synthetic resin insulators having enhanced arc track resistance and reduced UV light degradation characteristics are provided which include a continuous resin phase and a discrete, discontinuous hydrophobic phase in the form of discrete, suspended droplets within the resin. The preferred insulators are formed of a continuous epoxy matrix having suspended droplets of petrolatum dispersed therein. The resin phase comprises from about 15 to 50% by weight of the composition, whereas the hydrophobe is present at a level from about 2 to 10% by weight. UV light resistance is improved by predissolving or predispersing a quantity of UV light absorber in the hydrophobe before the latter is mixed with the resin phase. Use of a hydrophobe which is solid at normal temperatures but which melts above about 80.degree. F. (such as petrolatum) results in lower dust attraction during ordinary conditions and the ability to melt and effectively encapsulate surface dust during periods of increased arcing activity.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: May 18, 1993
    Assignee: A. B. Chance Company
    Inventor: William M. Rinehart
  • Patent number: 5190579
    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: February 7, 1990
    Date of Patent: March 2, 1993
    Assignee: Eastman Kodak Company
    Inventors: William C. Gose, Kenneth W. Hyche
  • Patent number: 5183849
    Abstract: A polyphenylene ether composition excelling in heatproofness, shock resistance, weatherability, gloss, chemical resistance, and moldability comprises 100 parts by weight of a mixture of the following components (a) and (b) and from 0.1 to 10.0 parts by weight of an acid-modified wax (c):(a) polyphenylene ether or the combination of polyphenylene ether and an aromatic vinyl polymer and(b) a graft copolymer obtained by emulsion polymerizing 20 to 90 parts by weight of an aromatic vinyl compound to 10 to 80 parts by weight (as reduced to rubber content) of an ethylene-propylene-nonconjugate diene copolymer rubber latex having a gel content of from 40 to 95% by weight and an average dispersed rubber particle diameter of from 0.2 to 1.0 .mu.m by the use of a redox initiator composed of cumene hydroperoxide, ferrous sulfate, sodium pyrophosphate, and dextrose.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: February 2, 1993
    Assignee: Ube Cycon, Ltd.
    Inventors: Soichiro Yamaguchi, Koichi Matsuda, Hideo Goto
  • Patent number: 5169891
    Abstract: Coating compositions based on ethylene vinyl acetate polymers have improved compatibility with solvents (especially with aliphatic hydrocarbon solvents) hydrocarbon oils, and mineral waxes by blending the EVA with a fatty acid and heating at or above the melting point of the EVA. Furthermore the resultant blends are much more easily emulsified in the presence of cations than blends which have not been processed with the fatty acids. Typically the starting material for the improved product of this invention is a composition comprising a blend of an EVA polymer and a fatty acid which is miscible in all proportions with mineral spirits at 25.degree. C. or forms a solution at a level 5% of fatty acid in mineral spirits, such as coconut or palm fatty acids.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: December 8, 1992
    Inventor: Nicholas Brown
  • 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: 5135977
    Abstract: A powder metallurgy product delicate in shape is obtained with high efficiency in binder expulsion by using an injection molding composition including a sintering alumina powder and a binder, the binder including therein, in gravimetric ratio, 10 to 80% of a low-density polyethylene, 10 to 80% of a paraffin type wax and 5 to 35% of a boric ester, and the volumetric mixing ratio of the sintering powder to the binder is 30 to 70% of the former component to 70 to 30% of the latter component.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: August 4, 1992
    Assignee: Sumitomo Metal Mining Company, Ltd.
    Inventors: Masakazu Achikita, Akihito Ohtsuka
  • Patent number: 5126390
    Abstract: Disclosed are water-based transfer element coating formulations suitable for forming transfer elements for impact printing, thermal printing, typewriting, and the like, which comprise a wax-in-water emulsion, an oil, an aqueous polymer emulsion, a colorant, an optional water-soluble leveling agent, and an optional inert filler, said coating formulation containing substantially no volatile organic compounds. Also disclosed are processes for preparing transfer elements with these coating formulations and printing processes employing the transfer elements thus prepared.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: June 30, 1992
    Assignee: Xerox Corporation
    Inventor: James M. Duff
  • 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: H1252
    Abstract: A method is provided of increasing the dielectric breakdown strength of tmoplastic films such as thin films of polypropylene obtained from polypropylene resin powder. The method involves melt extruding the resin powder with a small amount of ceresine wax.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: November 2, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: William L. Wade, Jr., Robert J. Mammone, Michael Binder