Metal Atom Other Than Aluminum, E.g., Zeolites, Etc. Patents (Class 524/450)
  • Patent number: 4705818
    Abstract: Disclosed herein is a polypropylene-base resin composition obtained by heating at a temperature of 170.degree. C.-280.degree. C. a mixture containing a crystalline ethylene-propylene block copolymer having a specific composition, an ethylene-propylene copolymer rubber having a specific composition and viscosity, an inorganic filler having a specific particle size, and an organic peroxide, all in specified amounts. The thus-obtained polypropylene-base resin composition has high molding fluidity and are inexpensive and their moldings have excellent low-temperature impact resistance and paintability along with high stiffness. They are thus suitable for use in the production of large moldings such as automobile bumpers, fenders and body sidemembers.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: November 10, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Yoichi Kawai, Masaru Abe, Akio Yoshihara, Shigeru Hayashi, Katsumi Sekiguchi
  • Patent number: 4704424
    Abstract: Various type A zeolites can be combined with thermoplastic materials to provide antiblock and improved optical properties to films or sheets of said thermoplastic. The zeolites are of less than full hydration, and at least a portion of the sodium is replaced with multivalent ions such as calcium and magnesium. The zeolites can also be acid treated to provide zeolites that contain hydronium ions.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: November 3, 1987
    Assignee: PQ Corporation
    Inventor: Bruce W. Sands
  • Patent number: 4687595
    Abstract: A process for producing corrosion inhibiting particles comprising binding corrosion inhibiting cations by ion-exchange to particles of silica or alumina, which preferably have a BET surface area of at least 500 m.sup.2 /g, to form cation exchanged particles, the cations of which are releasable by further ion-exchange, the BET surface area of the cation-exchanged particles being reduced, preferably to less than 150 m.sup.2 /g, by subjecting the cation-exchanged particles to a heat treatment which comprises heating the particles at a temperature of from 50.degree. to 120.degree. C. while maintaining the water content of the particles at more than 15% by weight, followed by heating with removal of water to dry the particles. An embodiment of the invention comprises heating a slurry of the cation exchanged particles followed by drying e.g. spray drying.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: August 18, 1987
    Assignee: The British Petroleum Company, p.l.c.
    Inventors: Roger J. Howes, David G. Othen
  • Patent number: 4686255
    Abstract: Stabilized polyvinyl chloride molding compositions contain, per 100 parts by weight of polymer, 0.02 to 5 parts by weight compounds of Formula I, ##STR1## in which R represents an alkyl group with 1 to 19 carbon atoms, a cycloalkyl group with 5 or 6 carbon atoms, a phenyl group, an alkylphenyl group with 7 to 11 carbon atoms or an MOOC--CH.sub.2 group, n represents the numbers 0 and 1, and M represents sodium or potassium.Heat stabilizers which are metal soaps, aromatic metal carboxylates, metal phenolates and organotin compounds as well as crystalline sodium aluminosilicate are also incorporated.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: August 11, 1987
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Werner Erwied, Horst Upadek, Bernd Wegemund
  • Patent number: 4680319
    Abstract: Compositions based on silane-grafted olefin polymers which are cross-linkable after shaping and which contain from 0.1 to 10% by weight of crystalline zeolites in powder form and, preferably, also a cross-linking coagent consisting of an aryl-carboxilic acid and/or a cross-linking catalyst.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: July 14, 1987
    Assignee: Franco Gimpel
    Inventors: Franco Gimpel, Corrado Brichta
  • Patent number: 4661299
    Abstract: A composition of enhanced radio frequency sensitivity and a method for providing enhanced radio frequency sensitivity to a composition in which a substance suitable for enhancement of radio frequency sensitivity is admixed with a radio frequency sensitizing amount of an inorganic radio frequency sensitizer treated essentially to remove absorbed water and/or other volatiles with the radio frequency sensitizer chosen from among zinc oxide (American Process), bentonite clay, and crystalline or amorphous alkali or alkaline earth metal aluminsilicate. A process for molding using these compositions and the molded product. The composition, method for enhancing radio frequency sensitivity, process for molding and molded product with a polymeric substance, particularly ultra high molecular weight polyethylene, as the substance suitable for enhancement of radio frequency sensitivity.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: April 28, 1987
    Assignee: Phillips Petroleum Company
    Inventor: Agmund K. Thorsrud
  • Patent number: 4612342
    Abstract: Rubber compositions which contain zeolite particles having particle sizes of no more than 1.6 microns in diameter with at least 90% of the weight of the particles being between 0.1 and 3.2 microns in diameter, a binding agent, water, and a solubilizing agent.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: September 16, 1986
    Assignee: J. M. Huber Corporation
    Inventor: John Kostinko
  • Patent number: 4604321
    Abstract: An adsorbing agent and a method of preparation thereof is disclosed, which agent is capable of selectively adsorbing mercury from various mercury-containing gaseous or aqueous media at high rate of efficiency. The agent essentially comprises a porous material having a specific surface area in excess of 10 m.sup.2 /g. and a conjugated diolefin lower polymer deposited in a predetermined amount on the porous material.
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: August 5, 1986
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Mitsuo Okahara, Isao Ikeda
  • Patent number: 4603164
    Abstract: An adhesive for bonding cured EPDM membranes is provided comprising(A) a halogenated butyl rubber(B) a pre-crosslinked butyl rubber(C) methylene-propylene-nonconjugated diene terpolymer(D) a thermoplastic petroleum based hydrocarbon feedstock derived aliphatic monomer resin and(E) an aliphatic isocyanate.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: July 29, 1986
    Assignee: Uniroyal Plastics Company, Inc.
    Inventors: Chester T. Chmiel, Daniel J. Cotsakis
  • Patent number: 4598117
    Abstract: Novel thermoplastic molding compositions comprising a thermoplastic elastomer and a modifying combination of an aromatic thermoplastic polyester and clay.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: July 1, 1986
    Assignee: General Electric Company
    Inventors: Nan-I Liu, Russell J. McCready
  • Patent number: 4593061
    Abstract: Poly(aryl ether ketones) are stabilized against crosslinking and thermooxidative degradation at elevated temperatures, e.g. temperatures typically used to melt process the polymer, by incorporating therein a particulate molecular sieve, for example, a crystalline aluminosilicate, such as a synthetic zeolite. The amount of molecular sieve is preferably about 0.5 to about 5% by weight based on the weight of the poly(aryl ether ketone).
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: June 3, 1986
    Assignee: Raychem Corporation
    Inventors: Christine E. Vogdes, Brackin L. Andrews
  • Patent number: 4591633
    Abstract: Purified polyolefins prepared by deactivating Ziegler type catalyst residue contained in polyolefins not purified by use of alkylene oxide and having off-odor are mixed for deodorization with 0.001 to 0.5% by weight of at least one deodorizer selected from the compounds having the following formulas (1) to (6):Al.sub.x Si.sub.y (OH).sub.3x+4y.nH.sub.2 O (1)Mg.sub.x (OH).sub.2y-2x (CO.sub.3).sub.y.nH.sub.2 O (2)Mg.sub.x Ca.sub.y (CO.sub.3).sub.2x+2y/2.nH.sub.2 O (3)M.sub.x Si.sub.y (OH).sub.2x+4y.nH.sub.2 O (4)M.sub.x Al.sub.y Si.sub.z (OH).sub.2x+3y+4z.nH.sub.2 O (5)M.sub.x Al.sub.y (OH).sub.2x+3y-2z (A).nH.sub.2 O (6)where M represents Mg or Ca; A represents CO.sub.3, HPO.sub.4 or SO.sub.4 ; x, y and z represent a positive number; and n represents zero or a positive integer; calcined products therefrom, and hydrates thereof. The deodorizer may be added thereto independently from or concurrently with other additives to be mixed.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: May 27, 1986
    Assignee: Chisso Corporation
    Inventors: Takeshi Suzuki, Nobutoshi Komori
  • Patent number: 4590123
    Abstract: A soft, low-resilience, cured rubber composition is prepared by mixing(a) 100 parts by weight of a polymeric material comprising a styrene-butadiene copolymer or styrene-butadiene copolymer mixture having a styrene content of 53 to 75% by weight, and 0 to 40% by weight of the polymeric material of another rubber ingredient,(b) 30 to 300 parts by weight of a filler, and(c) 5 to 100 parts by weight of a plasticizer, adding effective amounts of a vulcanizing agent and a vulcanizing accelerator to the mixture, and then heat curing the mixture. A similar composition further containing a foaming agent may be heat cured into a low-resilience rubber foam. Rubber and foamed rubber compositions have improved vibration-attenuating and shock-absorbing properties.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: May 20, 1986
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Takatsugu Hashimoto, Takashi Ohashi
  • Patent number: 4590233
    Abstract: In a stabilized polyvinyl chloride molding mixture containing a stabilizer combination based upon alkali metal, alkaline earth metal, and/or zinc soaps, co-stabilizers, powdered, crystalline, hydrous aluminosilicate, and flow promoters, as well as optionally additional conventional additives, the improvement which comprises, per 100 parts by weight of polyvinyl chloride,(a) from about 0.2 to 5 parts by weight of a synthetic, crystalline, powdered alkali metal aluminosilicate containing from about 13 to 25 percent by weight of water of crystallization; and(b) from about 0.1 to 5 parts by weight of at least one co-stabilizer selected from the group consisting of .beta.-diketones, .alpha.-ketoenol esters, .alpha.-acyllactones, substituted 1,4-dihydropyridine-3,5-dicarboxylic acids, and pyrrole, the pyrrole being unsubstituted or substituted.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: May 20, 1986
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Werner Erwied, Bernd Wegemund, Peter Wedl, Kurt Worschech
  • Patent number: 4584330
    Abstract: Plastic compositions having enhanced tensile, reinforcing, viscosity, opacity, brightness or pigment-extending properties comprise a plastic material having dispersed therein a synthetic sodium aluminum silicate with an average particle size of about 3.0 to 8.0 microns.
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: April 22, 1986
    Assignee: J. M. Huber Corporation
    Inventor: Satish K. Wason
  • Patent number: 4579884
    Abstract: Copolyetherester molding compositions comprising a copolyetherester and modifying combination of (i) an aromatic thermoplastic polyester and (ii) clay.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: April 1, 1986
    Assignee: General Electric Company
    Inventor: Nan-I Liu
  • Patent number: 4576986
    Abstract: Rubber compositions which contain zeolite particles as fillers which have particle sizes of no more than 2.2 microns in diameter with at least 90 percent of the weight of the particles being between 0.1 and 5.0 microns in diameter.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: March 18, 1986
    Assignee: J. M. Huber Corporation
    Inventor: John A. Kostinko
  • Patent number: 4567229
    Abstract: Polyphosphazenes containing 20-80 mole percent phenoxy, 20-80 mole percent alkylphenoxy and 2-30 mole percent alkoxy substituents possess low glass transition temperature while still exhibiting good smoke values in standard tests.
    Type: Grant
    Filed: December 18, 1984
    Date of Patent: January 28, 1986
    Assignee: Ethyl Corporation
    Inventors: F. Alexander Pettigrew, Harold R. Penton
  • Patent number: 4559377
    Abstract: An edging compound for ceiling tile comprises a hydroxyethyl cellulose, an acrylic latex, a polypropylene and one or more particulate fillers.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: December 17, 1985
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: James R. Gleason, Roy E. Shaffer, Issac A. Awabdy
  • Patent number: 4550134
    Abstract: Disclosed is a polyolefin resin composition which comprises 35 to 98% by weight of a polyolefin resin, 1 to 50% by weight of a muscovite and 1 to 50% by weight of titanium oxide. Also disclosed is another polyolefin resin composition which comprises further 0.5 to 40 parts by weight of a talc per 100 parts by weight of the resin composition defined above.The polyolefin resin composition according to the present invention has excellent light-shielding properties, small specific gravity which contributes to lightening the weight, excellent shock resistance and stiffness balance as well as moldability when manufacturing articles such as electric parts and automobile parts.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: October 29, 1985
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Osamu Isogai, Toshihumi Kagiya
  • Patent number: 4546127
    Abstract: A soft, low-resilience, cured rubber composition is prepared by mixing(a) 100 parts by weight of a polymeric material comprising a styrene-butadiene copolymer or styrene-butadiene copolymer mixture having a styrene content of 53 to 75% by weight, and 0 to 40% by weight of the polymeric material of another rubber ingredient,(b) 30 to 300 parts by weight of a filler, and(c) 5 to 100 parts by weight of a plasticizer, adding effective amounts of a vulcanizing agent and a vulcanizing accelerator to the mixture, and then heat curing the mixture. A similar composition further containing a foaming agent may be heat cured into a low-resilience rubber foam. Rubber and foamed rubber compositions have improved vibration-attenuating and shock-absorbing properties.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: October 8, 1985
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Takatsugu Hashimoto, Takashi Ohashi
  • Patent number: 4540727
    Abstract: The high temperature aging of polyamides is substantially improved by incorporating therein an antioxidant and an oxide of a metal of Group II or III of the Periodic Table, preferably a crystalline aluminosilicate such as a synthetic zeolite. The amount of antioxidant is preferably 1 to 5% and the amount of metal oxide is preferably 0.5 to 5%. Polyamides which can be stabilized in this way include Nylon-6, Nylon-11 and Nylon-12.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: September 10, 1985
    Assignee: Raychem Corporation
    Inventor: Christine E. Vogdes
  • Patent number: 4529750
    Abstract: Crosslinkable polymeric compositions based on polyolefins modified by grafting on to them hydrolyzable unsaturated alkoxy silanes, such grafting being carried out in the presence of a partially or totally dehydrated synthetic crystalline zeolite and of a free radical generating peroxide catalyst.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: July 16, 1985
    Inventor: Franco Gimpel
  • Patent number: 4518731
    Abstract: The kinetics of crystallization of high polymers from the molten state is modified by adding to the polymers before the thermoforming step low amounts of a nucleating agent consisting of solid particles of crystalline zeolites treated with high-boiling acrylcarboxylic acid or sulphonic acid.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: May 21, 1985
    Assignee: Montedison S.p.A.
    Inventors: Valentino Zamboni, Corrado Brichta, Claudio Troglia
  • Patent number: 4501842
    Abstract: An adhesive for bonding cured EPDM membranes is provided comprising(A) a halogenated butyl rubber(B) a pre-cross linked butyl rubber(C) a styrene/ethylene butylene/styrene block thermoplastic rubber,(D) a thermoplastic petroleum based hydrocarbon feedstock derived aliphatic monomer resin and(E) an aliphatic isocyanate.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: February 26, 1985
    Assignee: Uniroyal, Inc.
    Inventors: Chester T. Chmiel, Daniel J. Cotsakis
  • Patent number: 4499229
    Abstract: Stable, substantially acid-free, one-package moisture curable alkoxy terminated organopolysiloxane compositions are provided. These room temperature vulcanizable alkoxy terminated organopolysiloxane compositions use a condensation catalyst, a stabilizer, or scavenger for materials having chemically combined hydroxy radicals and diorganosulfoxide, such as dimethylsulfoxide which functions as a cure rate accelerator.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: February 12, 1985
    Assignee: General Electric Company
    Inventor: Thomas P. Lockhart
  • Patent number: 4499230
    Abstract: Stable, substantially acid-free, one package moisture curable alkoxy-terminated organopolysiloxane compositions are provided having a condensation catalyst and a stabilizer or scavenger for materials having chemically combined hydroxy radicals in the form of a molecular sieve.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: February 12, 1985
    Assignee: General Electric Company
    Inventor: Thomas P. Lockhart
  • Patent number: 4487871
    Abstract: A polyolefin resin composition for metallized films, having superior high-impact properties and heat-sealability and also superior printability and adhesive properties of metallized surface and further a good taken-up figure of rolled film is provided, which composition is obtained by blending a crystalline propylene-.alpha.-olefin copolymer containing 70% by weight or more of propylene component and having a crystalline m.p. of 150.degree. C. or lower, with a high density polyethylene having a density of 0.940 g/cm.sup.3 or higher, in blending ratios of 96 to 80% by weight of the copolymer and 4 to 20% by weight of the polyethylene, the ratio of the melt flow rate of the polyethylene to that of the copolymer being .gtoreq.0.7.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: December 11, 1984
    Assignee: Chisso Corporation
    Inventors: Tadao Ishibashi, Youichi Kugimiya
  • Patent number: 4487729
    Abstract: A friction material for use as a brake lining in automobiles, trucks, buses or similar vehicles. The brake lining contains no more than traces of asbestos and utilizes the mineral vermiculite as a basic constituent. The formulation of the brake lining comprises a non-fibrous natural or synthetic mineral or mineral-like material which on being compressed at ambient temperatures and at pressures of 1700 to 2600 p.s.i. has significant green strength in the order of 2 to 25 p.s.i. and also has appropriate thermal resistance, frictional properties, and shear and flexural strengths, together with a thermosetting resin as the basic components together with other organic and inorganic materials as friction modifiers and fillers. The mineral preferably comprises vermiculite, and together with the resin comprises preferably about 35% to 100% by weight of the brake lining formulation. The ratio by weight of resin to vermiculite is preferably in a range having a upper limit not exceeding about 1.2/1 to 1.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: December 11, 1984
    Assignee: P. T. Brake Lining Company
    Inventor: Edward R. Kaufman
  • Patent number: 4487810
    Abstract: A thermoplastic composition based on non-polar organic polymers and crystalline zeolites in acid form of which the exchangeable ions are totally or partly substituted by H.sup.+ ions, the composition having strong adhesion to metals, the invention also relating to composite objects obtainable therefrom.
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: December 11, 1984
    Assignee: Enoxy Chimica S.p.A.
    Inventors: Paolo Ascarelli, Gianfranco Boccalon, Giuliano Moretti, Nicola Nistico', Alberto Pelacani
  • Patent number: 4485203
    Abstract: A process for producing solid vermiculite products which are stable in water which comprises incorporating a urea-formaldehyde or melamine-formaldehyde resin in an aqueous suspension of vermiculite lamellae, shaping the suspension and removing water from the suspension, and curing the shaped composition by heating during and/or after removal of water from the suspension. The invention includes an aqueous suspension of vermiculite lamellae having a resin incorporated therein and a dry-powder mixture of vermiculite lamellae and a resin.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: November 27, 1984
    Assignee: Imperial Chemical Industries PLC
    Inventor: John Hutchinson
  • Patent number: 4483958
    Abstract: A thermoplastic polymer composition having well-balanced physical properties, especially impact strength and gloss, is provided, which comprises an aromatic polyether resin, a styrene polymer and/or a rubber-enforced styrene polymer containing a cross-linked conjugated diolefin polymer in a dispersed island state, an inorganic filler, and a thermoplastic elastomer selected from styrene-conjugated diolefin copolymers and styrenic polymer grafted polyolefin.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: November 20, 1984
    Assignee: Asahi-Dow Limited
    Inventors: Nobutoshi Kosaka, deceased, Shinichi Izawa, Jun Sugiyama
  • Patent number: 4480005
    Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 20 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: October 30, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas F. Brownscombe
  • Patent number: 4478964
    Abstract: Polycarbonate compositions comprising an aromatic polycarbonate resin, wherein dispersed are silicate particulates, are particularly suitable for the preparation of films having a low coefficient of static friction, high light transmission and virtual freedom from haze.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: October 23, 1984
    Assignee: Mobay Chemical Corporation
    Inventor: Russell P. Carter, Jr.
  • Patent number: 4478965
    Abstract: Zeolites, including ultramarine blue retard the oxidative degradation of melt processible perfluorocarbon resins including FEP and PFA at elevated temperatures. Coating compositions of the perfluorocarbon resin, zeolite, and iron-containing pigments are provided.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: October 23, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas P. Concannon, Mitzie K. Rummel
  • Patent number: 4477625
    Abstract: Stable, substantially acid-free, one package moisture curable alkoxy-terminated organopolysiloxane compositions are provided having a condensation catalyst such as a tin compound, a silicon containing or silicon free organic scavenger for materials having chemically combined hydroxy radicals and certain organo nitrogen accelerators to effect a substantial enhancement in cure rate.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: October 16, 1984
    Assignee: General Electric Company
    Inventor: Thomas P. Lockhart
  • Patent number: 4464504
    Abstract: The invention relates to a blend, based on polystyrene and/or impact resistant polystyrene, which is stress-corrosion, impact and cold resistant and flame retardant.The blend according to the invention contains 50 to 98 mass % of polystyrene or impact resistant polystyrene, 0.01 to 15 mass % of zeolites with a pore size above 0.43 nm, 2 to 18 mass % of a styrene/butadiene block copolymer, 0 to 15 mass % of a flame retardant and 0 to 2 mass % of a surface-active agent.The properties of the blend can be adjusted between wide limits by a suitable selection of the quality and quantity of the components.The blend can be prepared by the processors themselves, whereby the selection of the available polystyrene types can be considerably increased.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: August 7, 1984
    Assignee: Muanyagipari Kutato Intezet and Hutogepgyar
    Inventors: Jozsef K. Kocsis, Laszlo Kiss, Zoltan Balajthy, Peter Nagy, Gizella Pai nee Hazkoto, Miklos Zarubai, Geza Sipos, Andras Romhanyi, Rudolf Kokai
  • Patent number: 4460730
    Abstract: A composition having a high content of an inorganic material comprising(1) a granular or powdery phenol-aldehyde resin which is a condensation product of a phenol, an aldehyde and optionally a nitrogen-containing compound having at least two active hydrogens and is characterized by (A) containing spherical primary particles and their secondary agglomerated particles each having a particle diameter of 0.1 to 150 microns, (B) having such a size that at least 50% by weight thereof can pass through a 100 Tyler mesh sieve, and (C) having a free phenol content, determined by liquid chromatography, of not more than 500 ppm, and(2) a powder of an inorganic material,the amount of the phenol-aldehyde resin being less than 11% by weight based on the total weight of the phenol-aldehyde resin (1) and the powdery inorganic material (2).
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: July 17, 1984
    Assignee: Kanebo, Ltd.
    Inventors: Hiroaki Koyama, Shigeo Shimizu
  • Patent number: 4450200
    Abstract: A composition forming coated films having an excellent chipping resistance, containing:A. at least one polyester resin derived from (1) at least one acid component selected from the group consisting of dibasic acids and derivatives thereof and (2) at least one alcohol component selected from the group consisting of polyhydric alcohols and derivatives thereof; andB. at least one aminoplast resin having a number-average molecular weight of 800 to 1400,The polyester resin containing at least 20% by weight of the acid component being an aliphatic dibasic acid having 4 to 10 carbon atoms and at least 20% by weight of the alcohol component being a dihydric alcohol having 2 to 6 carbon atoms, the polyester resin having a number-average molecular weight of 2000 to 4000, a hydroxyl number of 30 to 75 and an acid number of 5 to 15.The weight ratio of the polyester resin to the aminoplast resin is 60/40 to 95/5.
    Type: Grant
    Filed: August 17, 1982
    Date of Patent: May 22, 1984
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Susumu Iwato, Tatuo Nakamura, Takeo Kurauchi
  • Patent number: 4440889
    Abstract: Polyethylene terephthalate molding compositions are provided which comprise a polyethylene terephthalate having an inherent viscosity of at least 0.4, a plasticizer, a lubricating polymer, a nucleating agent, a reinforcing agent or mixture of reinforcing agent and filler, and a molecular weight reducing agent for the polyethylene terephthalate. The molding compositions can be injection molded utilizing mold temperatures below 100.degree. C. (e.g., 60.degree.-90.degree. C.). The molded compositions exhibit an excellent balance of properties such as tensile strength, flex modulus, heat distortion temperature and impact strength.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: April 3, 1984
    Assignee: The Firestone Tire & Rubber Company
    Inventors: William L. Hergenrother, John M. Doshak
  • Patent number: 4436862
    Abstract: A thermally stable thickener is composed of a stabilizing agent and a water dispersible polyurethane. The stabilizing agent is a smectite-type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay, 100% active clay basis. The water dispersible polyurethane must possess the property that it forms an aqueous composition that experiences a decrease in Stormer viscosity upon thermal aging. Aqueous compositions incorporating the thermally stable thickener may be exposed to extended periods at elevated temperatures without substantially affecting the level of thickening.
    Type: Grant
    Filed: June 14, 1983
    Date of Patent: March 13, 1984
    Assignee: NL Industries, Inc.
    Inventors: Marvin T. Tetenbaum, Burlon C. Crowley
  • Patent number: 4431755
    Abstract: A rubber composition containing a phyllosilicate mineral filler is disclosed.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: February 14, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Kenneth E. Weber, Harold Mukamal
  • Patent number: 4431765
    Abstract: The invention herein is directed toward a process of preparing free flowing thermoset resin particles of polybutadiene and includes the steps of physically mixing a filler material with polybutadiene followed by chopping the mixture into small particles or granules which are irregularly shaped. A vulcanizing agent can be added during the mixing step as well as other ingredients commonly added to polybutadiene resin formulations, as is customarily done in the art, without affecting the free flowing properties of the polybutadiene treated according to the process of this invention.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: February 14, 1984
    Assignee: The Firestone Tire & Rubber Company
    Inventors: John M. Doshak, Mark R. Roodvoets, Adel F. Halasa
  • Patent number: 4425448
    Abstract: Zeolites, including ultramarine blue, retard the oxidative degradation of polytetrafluoroethylene resin (PTFE) at elevated temperatures. Coating compositions of PTFE, zeolites, acrylic resin and iron-containing pigments are provided.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: January 10, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: Thomas P. Concannon, Mitzie K. Rummel
  • Patent number: 4425465
    Abstract: An aqueous coating composition for the corrosion-protection and/or fire-protection of substrates comprising a dispersion of chemically delaminated vermiculite lamellae in an aqueous solution or dispersion of a film-forming polymeric binder. Preferably the vermiculite lamellae are of size below 50 microns, especially below 20 microns, and the film-forming polymeric binder is in the form of a colloidal dispersion or emulsion of the polymer in water such as is commonly called a latex.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: January 10, 1984
    Assignee: Imperial Chemical Industries PLC
    Inventors: John C. Padget, Kevin T. McAloon, Anthony J. Burgess
  • Patent number: 4420582
    Abstract: High impact strength, improved bending modulus composites are comprised of a polymeric matrix, e.g., elastomer or synthetic polymer of polypropylene or polyamide type, said matrix having highly dispersed therein a reinforcing amount of relatively small synthetic zeolitic filler particulates, e.g., of types A, 4A and Na-P, and the mean size of the elementary particles thereof advantageously closely approximating those of the secondary particles.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: December 13, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Pierre Canard, Bertrand Latourrette, Gilbert Schorsch
  • Patent number: 4412015
    Abstract: The dental filler material is formed from a selection of one or more finely divided inorganic particles of, barium containing glass or zeolite crystals with up to 100% of such particles having a coating thereon of a polymerized acrylate containing monomers or oligomers. The dental composite is formed using the dental filler material and a methacrylate based polymeric resin binder system.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: October 25, 1983
    Inventors: Stewart J. Lustgarten, Jurgen Engelbrecht
  • Patent number: 4405727
    Abstract: A polymer reinforcing material, consisting of a particulate or filamentary mineral component having a thin polymer-interactive layer, averaging about 5-500 Angstrom in thickness, of silicon-free and heavy metal-free organic molecules chemically bonded to its surface by covalent bonding, when used in relatively small amounts in the range from 1 to 30 phr is capable of providing superior retention or increase of desirable polymer properties especially impact resistance, compared to the use of conventional reinforcement in the same polymer, while providing increased stiffness and retention of strength at elevated temperatures.
    Type: Grant
    Filed: August 25, 1981
    Date of Patent: September 20, 1983
    Assignee: Shell Oil Company
    Inventor: Thomas F. Brownscombe
  • Patent number: 4400485
    Abstract: A rubber composition containing a phyllosilicate mineral filler is disclosed.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: August 23, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Harold Mukamal, Richard S. Lamar, Laurence E. Ferreira
  • Patent number: RE31421
    Abstract: An improved building material element or board having good thermal insulation properties comprising expanded vermiculite granules coated with 2 to 30% by weight, based on the weight of vermiculite, with an organic binder formed into a press cake which is then press heated to form the building element, the improvement comprising that at least a portion of the coated vermiculite granules are recycled particles which increases the density and has a more uniform and more easily sized surface and a process for its preparation.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: October 18, 1983
    Assignee: Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft
    Inventors: Felix Wehrmann, Rene-Hagen Voelki, Edwin Wojta