Patents Represented by Law Firm Depaoli & O'Brien
  • Patent number: 5190182
    Abstract: A slide gate closure is provided for bottom discharge bins which are used for storing and transporting large quantities of dry chemicals. The slide gate includes screw means attached to the gate whereby the contents of the container may be fully or partially removed through a discharge opening by rotation of the screw means. Wedges are provided on and about the gate to form a six point contact between the slide gate and a sealing gasket.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: March 2, 1993
    Assignee: Hoechst Celanese Corporation
    Inventors: Jimmy W. Copas, Roderick G. MacLennan, III, Thomas L. Overcash, Michael D. Sawyer, Thomas D. Willingham
  • Patent number: 5185392
    Abstract: A polyarylene sulfide resin composition useful for molded parts comprises (A) 100 parts by weight of a polyarylene sulfide, (B) 0.01 to 10 parts by weight of an organic bisphosphite of the formula: ##STR1## in which R.sub.1 and R.sub.2 are each an alkyl, an alkyl having at least one substituent, an aryl, an aryl having at least one substituent or an alkoxy, (C) 0 to 400 parts by weight of an inorganic filler and (D) 0.01 to 5 parts by weight of at least one alkoxy silane.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: February 9, 1993
    Assignee: Polyplastics Co., Inc.
    Inventors: Toshifumi Nonaka, Toshikatsu Nitoh, Andrew Auerbach
  • Patent number: 5177069
    Abstract: The present invention provides a novel class of naphthylsulfonylalkanoic acid compounds such as a structure corrresponding to the formula: ##STR1## or a pharmaceutically acceptable salt thereof. A present invention naphthylsulfonylalkanoic acid compound is useful for prevention or treatment of irritable bowel syndrome, biliary dyskinesia and acute pancreatitis.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: January 5, 1993
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Makio Kitazawa, Masuo Akahane, Yasushi Nakano, Atsushi Tsubaki, Kazuaki Sato, Masaaki Ban, Michihiro Kobayashi
  • Patent number: 5167630
    Abstract: This invention provides a cannulation device which is adapted for facilitating the location and venipuncture of a blood vessel with ease and precision. A carrier assembly supports a movable cubic block unit which contains an aligned combination of an ultrasonic probe and a cannula guide path means. The cubic block unit moves laterally within a defined space, whereby a blood vessel is located ultrasonically by by blood flow detection, and the guide path means assists venipuncture by a cannula.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: December 1, 1992
    Inventor: Kamaljit S. Paul
  • Patent number: 5160786
    Abstract: A resin material for inserting a lead frame comprises:(A) 100 parts by weight of a polyarylene sulfide resin,(B) 0.1 to 30 parts by weight of an .alpha.-olefin copolymer graft-copolymerized with an unsaturated carboxylic acid or its anhydride, and(C) 10 to 300 parts by weight of a fibrous filler, a nonfibrous inorganic filler or a mixture thereof.The grafted unsaturated carboxylic acid such as maleic anhydride is essential, in comparison with olefin copolymers, preferably in an amount of 1 to 5 percent. The olefin copolymer includes that of ethylene and ethyl acrylate. The addition of (B) effectively works to improve adhesion between the lead frame and the polyarylene sulfide composition, because it does not decompose and give a gas during molding. Heat resistance and the molding performance does not change. An example comprises PPS, a copolymer of ethylene and ethyl acrylate, grafted with 3.0% of maleic anhydride, glass fiber and glass beads.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: November 3, 1992
    Assignee: Polyplastics Co. Ltd.
    Inventor: Mikio Nakai
  • Patent number: 5155265
    Abstract: Acetic acid containing iodide, unsaturates and carbonyl impurities is purified by treatment with ozone and thereafter contacted with activated carbon and/or an ion-exchange resin for removal of impurities.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: October 13, 1992
    Assignee: Hoechst Celanese Corporation
    Inventors: Mark O. Scates, Russell K. Gibbs, Jr., G. Paull Torrence
  • Patent number: 5155266
    Abstract: Acetic acid containing iodide, unsaturates and carbonyl impurities is purified by treatment with ozone in the presence of an oxidation catalyst. The acetic acid product may be further contacted with activated carbon or ion-exchange resins for additional removal of impurities.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: October 13, 1992
    Assignee: Hoechst Celanese Corporation
    Inventors: Mark O. Scates, Russell K. Gibbs, Jr., G. Paull Torrence
  • Patent number: 5149731
    Abstract: The polyarylene sulfide resin composition is improved in impact strength and rigidity and useful as engineering plastics. It is prepred by mixing 100 parts by weight of a resin component comprising(A) 99 to 20 parts by weight of a polyarylene sulfide resin and(B) 1 to 80 parts by weight of a polyamide resin with(C) 0.5 to 50 parts by weight of an olefin copolymer comprising an .alpha.-olefin and a glycidyl ester of an .alpha., .beta.-unsaturated acid,(D) 0.01 to 5 parts by weight of an alkoxysilane compound and(E) 0 to 400 parts by weight of one or more fillers selected from among fibrous, powdery and flaky ones.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: September 22, 1992
    Assignee: Polyplastics Co., Ltd.
    Inventors: Katsumi Uota, Hiroyuki Sano, Hajime Serizawa, Masaru Kubota
  • Patent number: 5145869
    Abstract: The present invention provides a novel class of phenylsulfonylalkanoic acid compounds such as a structure corresponding to the formula: ##STR1## or a pharmaceutically acceptable salt thereof. A present invention phenylsulfonylalkanoic acid compound is useful for prevention or treatment of irritable bowel syndrome, biliary dyskinesia and acute pancreatitis.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: September 8, 1992
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Makio Kitazawa, Masuo Akahane, Yasushi Nakano, Atsushi Tsubaki, Kazuaki Sato, Masaaki Ban, Michihiro Kobayashi
  • Patent number: 5114996
    Abstract: Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific phosphorous compound.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: May 19, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Michael D. Golder, David K. Walker
  • Patent number: 5114995
    Abstract: Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific phosphorous compound.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: May 19, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Michael D. Golder, David K. Walker
  • Patent number: 5114997
    Abstract: Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific diamide compound.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: May 19, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Michael D. Golder, David K. Walker
  • Patent number: 5114998
    Abstract: Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific diphenylamine compound.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: May 19, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Michael D. Golder, David K. Walker
  • Patent number: 5112891
    Abstract: A polycarbonate resin composition improved in heat resistance by the addition of an organic cyclic phosphite represented by the general formula: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 9 carbon atoms; R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and R.sub.3 represents an alkyl group having 1 to 30 carbon atoms.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: May 12, 1992
    Assignee: Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Tohru Haruna, Masayuki Takahashi, Toshinori Yukino
  • Patent number: 5100985
    Abstract: In one embodiment this invention provides novel organic compounds and polymers characterized by a 1,4-bis(4-arylbutadienyl)benzene structure which exhibits third order nonlinear optical response.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: March 31, 1992
    Assignee: Hoechst Celanese Corp.
    Inventor: Diane E. Allen
  • Patent number: 5093883
    Abstract: This invention provides process embodiments for the production of second order nonlinear optical media and waveguiding devices. An important aspect of an invention waveguiding device is the use of a novel electrode design which permits the application of a high voltage electric field for molecular orientation of a dipolar organic waveguiding medium.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: March 3, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Hyun N. Yoon, Hong-Tai Man
  • Patent number: 5093062
    Abstract: Organometallic preceramic polymers are melt spun into fibers utilizing a spinning apparatus which directs the preceramic polymer from a stagnant melt pool of said polymer to a spinneret. The spinneret is one used for solvent spinning and, thus, has a shorter residence time during extrusion through the spinneret orifice than conventional melt spinning spinnerets.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: March 3, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Martin H. G. Deeg, Joseph J. DiBiase, Joseph Pickton
  • Patent number: 5087769
    Abstract: A method of forming 6-substituted-2-vinyl naphthalene from a 2-substituted naphthalene compound wherein the substituent in the 2-position is an ortho-para directing electron-donating group not reactive with hydrogen fluoride, comprises contacting the naphthalene compound and an acylating agent with substantially anhydrous hydrogen fluoride to acylate the naphthalene compound to a 6-substituted-2-acylnaphthalene compound, hydrogenating the 6-substituted-2-acylnaphthalene compound to convert the 2-acyl substituent to an alcohol substituent, dehydrating the product of hydrogenation in the presence of a free radical inhibitor to convert the alcohol substituent to an olefinic substituent, and isolating the formed 6-substituted-2-vinylnaphthalene subsequent to the dehydration.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: February 11, 1992
    Assignee: Hoechst Celanese Corporation
    Inventors: Mohammad Aslam, Henry C. Linstid, III., Kenneth G. Davenport
  • Patent number: 5084203
    Abstract: In one embodiment this invention provides an optical medium which consists of a microdispersion of liquid crystal droplets in a synthetic resin matrix. A preferred invention optical medium exhibits a Kerr effect, and can transmit propagating light waves with low scattering loss under waveguiding conditions.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: January 28, 1992
    Assignee: Hoechst Celanese Corp.
    Inventors: Michael J. Sansone, Mark S. Kwiatek
  • Patent number: D330633
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: November 3, 1992
    Inventor: Robert Lavin