Patents Examined by Josephine L. Barr
  • Patent number: 4711730
    Abstract: Capped 1,2-propylene terephthalate-polyoxyethylene terephthalate polyesters useful as soil release agents are disclosed. Preferred polyesters have the formula: ##STR1## wherein each R.sup.1 is a 1,4-phenylene moiety; the R.sup.2 are essentially 1,2-propylene moieties; the R.sup.3 are essentially the polyoxyethylene moiety--(CH.sub.2 CH.sub.2 O).sub.q --CH.sub.2 CH.sub.2 --; each X is ethyl or preferably methyl; each n is from about 12 to about 45; q is from about 12 to about 90; the average value of u is from about 5 to about 20; the average value of v is from about 1 to about 10; the average value of u+v is from about 6 to about 30; the ratio u to v is from about 1 to about 6.
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: December 8, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Eugene P. Gosselink, Francis L. Diehl
  • Patent number: 4711946
    Abstract: Electroactive organic polymeric materials of poly(heterocycle diyl methylenes) containing alternating heterocyclic conjugated segments of varying sizes and methylene or substituted methylenes in the main chain and random copolymers of such poly(heterocycle diyl methylenes) together with a method of making them are disclosed.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: December 8, 1987
    Assignee: Honeywell Inc.
    Inventors: Samson A. Jenekhe, Marcia K. Hansen
  • Patent number: 4707346
    Abstract: The invention is directed primarily to a method of doping tin oxide with Ta.sub.2 O.sub.5 and/or Nb.sub.2 O.sub.5 using pyrochlore-related compounds derived from the system SnO--SnO.sub.2 --Ta.sub.2 O.sub.5 --Nb.sub.2 O.sub.5 for use in thick film resistor compositions. The invention is also directed to thick film resistors containing the above-described pyrochlore-related compounds and to various compositions and methods for making such thick film resistors.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: November 17, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jacob Hormadaly
  • Patent number: 4707160
    Abstract: A bleach particle is provided whose core is an intimately dispersed agglomerated mixture of a halogen bleaching agent, an inorganic phosphate salt and a binder with melting point 85.degree. to 120.degree. F. In the preferred composition there is present dichloroisocyanurate, sodium tripolyphosphate and lauric acid, respectively. These core particles have a uniform round shape, are of high strength and obtainable in good yields.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: November 17, 1987
    Assignee: Lever Brothers Company
    Inventors: Kil Whan Chun, Allan H. Gilbert, David J. Lang, Edward Santos
  • Patent number: 4705647
    Abstract: A copper-type conductive coating composition which comprises:(A) a copper powder with hydrogen loss of at most 0.2% by weight or a copper powder with its oxidized surface layer removed by treatment with an organic carboxylic acid,(B) a coating binder resin, and(C) an antioxidant selected from triazoles represented by the formula: ##STR1## wherein Y is a hydroxyl group, a hydrogen atom, a C.sub.1 -C.sub.18 alkyl group or a halogen atom, and a is an integer of 1 to 3, and trithiophosphites represented by the formula: ##STR2## wherein each of R.sub.1 to R.sub.3 is a C.sub.1 -C.sub.30 alkyl group or an allyl group.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: November 10, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Shoji Yamaguchi, Kimiko Yamada
  • Patent number: 4705648
    Abstract: The production of thermoplastics by polymerization of olefins in the presence of light metal non-ferrous metal or alloys thereof by means of a heterogenous Ziegler-Natta catalyst is taught. Preferably, the polyolefin is crosslinked in regions thereof adjacent the metal particles. The product resins can be employed either alone or as a component of a polyblend with other polymers for the purpose of achieving heat removal with simultaneous electrical insulation in electronic and electrical engineering applications.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: November 10, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl-Heinz Reichert, Wolfgang Schoeppel, Stawros Ewangelidis, Jurgen Bednarz, Ulrich Leute
  • Patent number: 4704231
    Abstract: This invention relates to composites comprising exfoliated graphite flakes in a polymer matrix which constitutes a small volume fraction; the density of the composite is 0.7 g/cm.sup.3 or below and the electrical resistivity of the composite is 0.5 ohm.cm or below. This invention also relates to composites comprising exfoliated graphite flakes bound by a polymer, such that the flakes are preferentially oriented. In addition, this invention relates to a process for producing these composites.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: November 3, 1987
    Inventor: Deborah D. L. Chung
  • Patent number: 4704164
    Abstract: An organic liquid composition for use with a heat sinterable porcelain powder, such as dental porcelain powder, which binder composition comprises a mixture of organic liquids which have an index of refraction of the porcelain powder to be mixed with the organic liquid binder.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: November 3, 1987
    Assignee: Forsyth Dental Infirmary for Children
    Inventors: Benjamin H. Amdur, Edwin J. Riley, Ralph B. Sozio
  • Patent number: 4704212
    Abstract: Liquid aftertreatment preparations for laundry having fabric-softening, acidifying and antichlorinating properties which contain, in acidic aqueous solution, hydrogen peroxide or an organic percarboxylic acid, a quaternary ammonium compounds, and hexafluorosilicic acid and/or water-soluble salts thereof, more especially the magnesium salt, as an acidifying agent. Preparations containing magnesium salts of hexafluorosilicic acid are distinguished by particularly high stability of the per compounds.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: November 3, 1987
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Norbert Schindler, Hans Nuesslein, Edgar Koeppelmann, Joerg Poethkow
  • Patent number: 4704230
    Abstract: A coherent particulate composite is formed by blending particulate material with a binder containing lignosulfonate and urea.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: November 3, 1987
    Assignee: Georgia-Pacific Corporation
    Inventor: Kenneth A. E. Blackmore
  • Patent number: 4704225
    Abstract: There is provided a composition especially useful to remove old wax, grease, oils, or fats easily. The composition is a water-in-oil emulsion of a terpene hydrocarbon and a coconut oil fatty acid alkanolamide in water characterized by stability and easy biodegradability.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: November 3, 1987
    Inventor: Wilmer B. Stoufer
  • Patent number: 4702859
    Abstract: An electrically conductive polyamide resin composition comprising(A) 100 parts by weight of a polyamide resin derived from xylylenediamine as a main diamine component and an alpha, omega-linear aliphatic dicarboxylic acid as a main dicarboxylic acid component,(B) 5 to 100 parts by weight of nylon 66,(C) 30 to 300 parts by weight of glass fibers,(D) 5 to 40 parts by weight of furnace black, and(E) 5 to 40 parts by weight of graphite.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: October 27, 1987
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Senzo Shimizu, Isao Nomura, Kenichi Narita
  • Patent number: 4701279
    Abstract: An anisotropically electroconductive adhesive which is solid at room temperature, preferably, in the form of a film is prepared by dispersing conductive particles such as metal particles and the like in a thermoplastic insulating adhesive composition comprising an unvulcanized thermoplastic elastomer such as a styrene-based elastomer and a crosslinked synthetic rubber and/or thermoplastic elastomer as a vulcanizate derived from an unvulcanized synthetic rubber or thermoplastic elastomer using a vulcanizing agent such as organic peroxides. The conductive adhesive is useful in adhesively bonding, for example, two electronic circuit boards without disadvantages of instability of the electric resistance, inconvenience in the application and so on.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: October 20, 1987
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Toshiyuki Kawaguchi, Hideki Suzuki, Tsuneo Usuda
  • Patent number: 4699728
    Abstract: An aqueous acidic solution for cleaning fiberglass without significant discoloration of the surface thereof comprising a water-soluble organophosphonic acid and/or a water soluble acrylic acid polymer, in combination with a higher (alkyl)betaine surfactant and, optionally an amount of alkaline pH modifying substance effective to adjust the pH to a value within the range of about 3.0-7.0. The preferred (alkyl)betaine is lauramidopropyl betaine. Cleaning results are optimized when the acrylic polymer and organophosphate are combined in a cleaning composition having a pH of about 3.5-4.5.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: October 13, 1987
    Assignee: Ecolab, Inc.
    Inventors: Terri L. Riehm, Robert T. Hall, II
  • Patent number: 4696764
    Abstract: An electrically conductive adhesive composition which provides electric conductivity between facing electrodes but maintains electric insulation in the lateral direction across the facing direction, said composition comprising (a) a nonconductive base resin and (b) electrically conductive particles incorporated and dispersed in the resin (a); wherein(I) said electrically conductive particles (b) are composed of(b-1) 10 to 75%, based on the total weight of the components (a), (b-1) and (b-2), of abrasive grain-like electrically conductive particles having an average particle diameter of at least 1 micrometer, and(b-2) 0.2 to 20% by weight, based on the total weight of the components (a), (b-1) and (b-2), of electrically conductive fine particles having an average particle diameter of not more than 0.5 micrometer, and(II) said electrically conductive adhesive composition contains a solvent for said base resin (a) in an amount required to form said composition into the state of a printing ink or a paint.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: September 29, 1987
    Assignee: Osaka Soda Co., Ltd.
    Inventor: Taro Yamazaki
  • Patent number: 4696765
    Abstract: A semiconductive resin composition used in power cables having excellent properties is disclosed, which comprises 100 parts by weight of a base resin of at least one member selected from the group consisting of a low-density polyethylene, an ethylene/vinyl acetate copolymer having a vinyl acetate content of 25% by weight or less and an ethylene/(meth)acrylate copolymer having a (meth)acrylate content of 20% by weight or less, and 6 to 25 parts by weight of electroconductive carbon black having a DBP-absorption number of 220 to 340 ml/100 g and an impurity metal residue of 0.2% by weight or less.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: September 29, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Tetsuji Kakizaki, Toshikazu Mizutani, Hiroshi Yui
  • Patent number: 4695404
    Abstract: This invention is directed to a polymeric composition comprising a polymeric binder and silver particles and having a volume electrical resistivity of 0.0001 ohm-cm or less.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: September 22, 1987
    Assignee: Amerasia International Technology, Inc.
    Inventor: Chung T. Kwong
  • Patent number: 4693843
    Abstract: Resistance paste for baked-film resistors consists essentially of conducting powder, glass frit and organic varnish. The conducting powder consists essentially of iron oxide, ruthenium oxide and lead oxide, the molar ratio of the three components of the conducting powder being 1:0.6-3:0.2-1 when expressed in terms of Fe.sub.3 O.sub.4, RuO.sub.2 and Pb.sub.3 O.sub.4, respectively.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: September 15, 1987
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toru Kasanami, Hiroji Tani, Shizuharu Watanabe, Toshiaki Ikeda
  • Patent number: 4692273
    Abstract: This invention comprises improved novel aqueous gel compositions, and devices and methods for preparation of such compositions. The invention also includes the uses of these novel compositions and devices made therefrom as linkages for transmitting and measuring electrical phenomena, and particuarly for detecting and transmitting electrical impulses from mammalian skin to or through electrodes. Generally, the compositions of the invention contain critical and specific amounts of polyacrylamide, a titanium organic compound, specific and selected organic gums and at least one conductive salt.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: September 8, 1987
    Assignee: Hewlett-Packard Company
    Inventor: Katherine Lawrence
  • Patent number: 4690770
    Abstract: A block-form detergent free of alkali metal hydroxides for use in dishwashing machines which contain from 65 to 85% by weight to a mixture of anhydrous sodium metasilicate and anhydrous pentasodium triphosphate in a ratio of from 1:1 to 1:2 and from 0.2 to 4% by weight of uniformly distributed active chlorine donors which are, for example, trichloroisocyanuric acid. The production process comprises heating sodium metasilicate to 45.degree. to 55.degree. C. to obtain a clear melt and then adding other constituents, the pentasodium triphosphate and the active chlorine donor being added last, and pouring the melt into flexible molds in which it is left to solidify into blocks. The detergents are stable for storage with good dissolving power.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: September 1, 1987
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Peter Jeschke, Theodor Altenschoepfer, Jochen Jacobs, Klaus Schumann