Patents Represented by Law Firm Cushman, Darby and Cushman
  • Patent number: 4977038
    Abstract: Micro- and nano-porous metal structures including an alloy of one or more noble metals and substantially uniform and interconnected porosity in pore sizes ranging from three nanometers to 10 micrometers produced by a process including the following steps: mixing at least two metals having different electrochemical activity, according to predetermined proportions to form a multi-metallic alloy; contacting said alloy with an electrolyte; and applying an electrochemical potential to said electrolyte wherein said alloy acts as the anode until all or a portion of the more electrochemically active metal is dissolved from the alloy leaving porous metal.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: December 11, 1990
    Inventors: Karl Sieradzki, Roger C. Newman
  • Patent number: 4975113
    Abstract: A herbicidal composition comprising a herbicidal cyclohexane dione of partial structure (I): ##STR1## and a surfactant having terminal hydroxy groups in which the hydroxy groups have been replaced by organic blocking groups.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: December 4, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Gordon J. Marrs, David J. Brown, Roger P. Heath
  • Patent number: 4969772
    Abstract: A road surface heating apparatus for repairing a deteriorated asphalt paved road includes an air shut out device with skirt members surrounding the heating panel so as to prevent air from entering into the heating apparatus, thereby restraining smoke generation. The generated smoke is filtered and purified by an after-burner and a catalyst burner and then exhausted, thus air pollution problems at the work site are solved.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: November 13, 1990
    Assignee: Taisei Road Construction Co., Ltd.
    Inventors: Tatsuhiko Chiba, Akira Obuchi
  • Patent number: 4969572
    Abstract: An end closure for a container for grated or powered products having a push open lid portion for providing access to material within the container and a rotatable closure portion for selectively closing off the opening defined by the push open lid portion. The push open lid portion includes elements on the openable lid portion which cooperate with corresponding gripping elements defined on the undersurface of the end closure so the latter will engage the former to retain the lid portion in its open disposition.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: November 13, 1990
    Assignee: The Specialty Packaging Group, Inc.
    Inventors: John vanKerkhoven, deceased, James Kick
  • Patent number: 4968688
    Abstract: Compounds of the formula: ##STR1## and stereoisomers thereof where W is pyridyl or pyrimidinyl linked to A by any one of its ring carbon atoms. A is an oxygen atom or S(O).sub.n where n is 0, 1 or 2; X, Y and Z are, for example, hydrogen, halogen, hydroxy or alkyl; and R.sup.1 and R.sup.2 are optionally substituted alkyl but with certain provisos. The compounds are useful as plant fungicides.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: November 6, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Vivienne M. Anthony, John M. Clough, Paul DeFraine, Christopher Godfrey
  • Patent number: 4968474
    Abstract: A method of producing a resin molded article composed of a base material of a synthetic resin and a surface layer provided on the surface of the base material as one body, which includes preparing a mold having a cavity with an end molding portion for molding the end portion of the resin molded article and a body molded portion for molding the body of the resin molded article, the width of the end molding portion being larger than that of the body molding portion. The surface layer is disposed within the cavity of the mold, while disposing molten synthetic resin for the base material on one side of the surface layer so as to be held in the cavity of the mold. The mold is then closed and compressed gas is injected into the molten synthetic resin within the end molding portion so as to expand the molten synthetic resin. Finally, the molten synthetic resin is cured in the cavity.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: November 6, 1990
    Assignee: Toyoda Gosei Co., Ltd.
    Inventor: Keizo Ito
  • Patent number: 4966159
    Abstract: A test strip for allergy testing the skin includes a support lamina having at least one aperture extending therethrough and a lance device positioned on one surface of the support lamina so that the sharp lance of the device extends into the aperture. A removable strip is releasably sealed to the opposite surface of the support lamina and overlies the aperture to prevent entry of foreign material into the aperture. Upon removal of the strip an allergen can be applied through the aperture to the lance. A second strip overlies the lance device and is removably sealed to the support lamina. Upon removal of the second strip the lance device is also removed from the support lamina so that the second strip and the lance device can be applied to the skin.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: October 30, 1990
    Inventor: Nicholas H. Maganias
  • Patent number: 4965971
    Abstract: A roof mounting 1 for use in giving a rise pipe 2 access through a roof 3 comprising a plate 4, 22 having a circular hole 5 therein, a connector 6 embodying a spherical formation 7 which fits closely in the circular hole in the plate, the connector having a passage therethrough and being shaped to receive the rise pipe, and, mounting means 9, 16 for mounting the connector to the plate in a manner permitting the connector to be pivotted relative to the plate, the roof mounting in an operative position being located with the plate parallel to the pitch of the roof and with the connector aligned with the rise pipe.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: October 30, 1990
    Assignee: Leonard Jean-Jacques
    Inventors: Leonard Jean-Jacques, John N. Sutherland
  • Patent number: 4964991
    Abstract: A flat permeable membrane of polyolefin 10 to 500 .mu.m in thickness, which membrane has compact layers of intimately bound fine particles of polyolefin formed one each in the opposite surface regions of the membrane and a layer of an aggregate of fine discrete particles of an average diameter of 0.01 to 5 .mu.m formed between the compact layers and, consequently, has fine through pores labyrinthically extended in the direction of thickness of the membrane to establish communication between the opposite surfaces of the membrane and a method for the manufacture of the permeable membrane.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: October 23, 1990
    Assignee: Terumo Corporation
    Inventors: Yukio Seita, Makoto Emi
  • Patent number: 4957966
    Abstract: A novel thermoplastic resin composition comprising a matrix of polyamide resin (E) and a disperse phase of a composition (D), said composition (D) comprising a polyphenylene ether (A), a rubber-like materail (B) and a mutual compatibilizer (C), said polyphenylene ether (A) being obtained from at least one phenol compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon residue, with a proviso that at least one of them is a hydrogen atom, and said polyphenylene ether (A) having a reduced viscosity .eta..sub.sp/c of 0.40-0.58 deciliter/gram, said mutual compatibilizer (C) being compatible or reactive with said polyphenylene ether and reactive with said polyamide resin, and said polyamide resin (E) having a number average molecular weight of 14,000-40,000 and an end amino group content of 50-95 mmole/kg, wherein the thermoplastic resin composition constitutes 1-65 wt.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: September 18, 1990
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Taichi Nishio, Hiroomi Abe, Yasurou Suzuki, Takashi Sanada, Satoru Hosoda, Takayuki Okada
  • Patent number: 4948544
    Abstract: A process is disclosed for producting thin stretched films having a thickness between 0.1 and 20 .mu.m from polyolefins of ultrahigh molecular weight by dissolving the polyolefin in a solvent, shaping the solution at a temperature above the solution temperature of the polyolefin to a tape, cooling the tape to a temperature below the solution temperature to obtain gelation and stretching the gelled tape. In this process the gelled tape is initially subjected to a preliminary orientation in one direction, under solvent removal, and is then stretched in a direction essentially perpendicular to the direction of preliminary orientation, at elevated temperature, followed by final stretching to obtain the finished thin films. This process makes possible the production of films which are free from pores, that is to say transparent and which posses high Young's moduli, high tensile strengths and favorable values for elongation at break.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: August 14, 1990
    Assignee: Stamicarbon B.V.
    Inventors: Lambert H. T. Van Unen, Pieter B. Pluyter, Willibrordus M. G. F. Pontenagel
  • Patent number: 4939181
    Abstract: The invention relates to polyethylene compositions comprising 20-98 wt. % branched polyethylene (a) with a density of between 915 and 940 kg/m.sup.3 and a melt flow index of between 0.05 and 40 dg/minute, prepared by a high pressure radical process, and 2-80 wt. % substantially linear polyethylene (b) with a density of between 850 and 915 kg/m.sup.3, a melt flow index of between 0.05 and 25 dg/minute and a DSC crystallinity at 23.degree. C. of at least 10%, prepared with the aid of a transition metal catalyst, the difference between the highest crystallization temperature of branched polyethylene (a) and the highest DSC crystallization temperature of linear polyethylene (b) being at most 10.degree. C. and the mixture having a modulus of elasticity of at most 280 N/mm.sup.2 and objects made therefrom. These polyethylene compositions, when processed to foamed objects, have a high resistance to high temperatures as well as a high flexibility.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: July 3, 1990
    Assignee: Stamicarbon B.V.
    Inventor: Franciscus J. J. Haselier
  • Patent number: 4937379
    Abstract: A process is described for preparing alpha-arylalkanoic acids, which comprises preparing and subsequently rearranging ketals of formula ##STR1## (in which Ar, R, R.sub.1, R.sub.2 and R.sub.4 have the meanings given in the description).The ketals of formula II are prepared from the corresponding alpha-hydroxyketals.The rearrangement reaction is conducted under mild conditions.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: June 26, 1990
    Assignee: Zambon S.p.A.
    Inventors: Claudio Giordano, Marco Villa
  • Patent number: 4935097
    Abstract: A paper having an absolute dry moisture content (moisture content in absolute dry condition) of 1.8-7% is subjected to a heat calendering treatment at a temperature of 150.degree.-300.degree. C. under a linear pressure of 40 kg/cm or above to provide a paper which has both satisfactory surface smoothness and rigidity (stiffness) and is suited for use as a photographic support.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: June 19, 1990
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Naoya Tashiro, Hiroshi Uehara
  • Patent number: 4935164
    Abstract: Substantially monomer-free, electrically conductive organic polymers and/or organic conductors are dissolved or dispersed in a melt or solution of a thermoplastic matrix polymer or polymer mixture partially compatible therewith and having a solubility parameter >8.6 (cal/cm.sup.3).sup.1/2, in order to obtain mouldable polymer blends. The latter are suitable for producing moulded articles, particularly for electrical conductors, semiconductors or photoconductors. A suitable apparatus for producing the polymer blends comprises an extruder or kneader, through whose barrel one or more sonotrodes project into the transformation zone.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: June 19, 1990
    Assignee: Zipperling Kessler & Co. (GmbH & Co.)
    Inventors: Bernhard M. Wessling, Harald K. Volk
  • Patent number: 4933426
    Abstract: Colored condensation polymers useful as replacements for waxes in a thermal wax transfer process, said polymers being obtained by reacting a polymerizable lactone or a hydroxyalkanoic acid with a dye containing at least one active hydrogen atom.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: June 12, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert D. McClelland, Brian Parton
  • Patent number: 4931550
    Abstract: The dye of the formula: ##STR1## which is suitable for use in aqueous inks, especially for ink jet printing.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: June 5, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Arthur Quayle, Cecil V. Stead
  • Patent number: 4928438
    Abstract: This invention provides a wafer processing film comprising a base film having a Shore D hardness of 40 or less and an adhesive layer disposed on one surface of the base film. In grinding the surfaces of wafers such as silicon and similar wafers, breakage can be prevented by affixing the wafers to the adhesive layer of the processing film and then grinding them.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: May 29, 1990
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Osamu Narimatsu, Michiyasu Ito, Kazuyoshi Komatsu, Yasuhiro Shibata
  • Patent number: 4927919
    Abstract: This invention relates to a novel chartreusin derivative of the general formula (I): ##STR1## and a salt thereof. This chartreusin derivative and a salt thereof have an excellent antitumor activity, which is exhibited even when the site of cancer inoculation and the site of drug administration are different. This invention further relates to a antitumorous composition containing the above-mentioned compound as active ingredient. This invention furthermore relates to a process for producing the above-mentioned chartreusin derivative or salt thereof.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: May 22, 1990
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Nobutoshi Yamada, Hideo Sugi, Kenji Kon
  • Patent number: 4925818
    Abstract: A ligand specific to a bioactive substance to be purified is fixed, via a connecting silane, to a mineral particulate carrier chosen from among SiO.sub.2, Al.sub.2 O.sub.3, ZrO.sub.2 and TiO.sub.2, the particles of the carrier being submicronic, non-porous and having a large specific surface. The carrier is contacted with an aqueous extract containing inter alia the bioactive substances, for the time required for the substance to become specifically fixed to the carrier. The carrier is then separated and the desired bioactive substance is isolated by desorption.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: May 15, 1990
    Assignee: Battelle Memorial Institute
    Inventors: Michel Schneider, Christian Guillot, Bernard Lamy