Patents Examined by D. R. Wilson
  • Patent number: 5668250
    Abstract: This application is directed to novel fluorinated polymers and prepolymers derived from mono-substituted oxetane monomers having fluorinated alkoxymethylene side-chains and the method of making these compositions. The mono-substituted fluorinated oxetane monomers having fluorinated alkoxymethylene side-chains are prepared in high yield by the reaction of a fluorinated alkoxides with either 3-halomethyl-3-methyloxetane premonomers or aryl sulfonate derivative of 3-hydroxymethyl-3-methyloxetane premonomers. Preparation of a mono-substituted 3-bromomethyl-3-methyloxetane premonomer via a simple, high yield process amenable to commercial scaleup is also disclosed. The fluorinated oxetane monomers of this invention can be readily homo/co-polymerized in the presence of a Lewis acid and polyhydroxy compounds to obtain hydroxy-terminated polyether prepolymers having fluorinated alkoxymethylene side chains.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 16, 1997
    Assignee: Aerojet-General Corporation
    Inventor: Aslam A. Malik
  • Patent number: 5668251
    Abstract: This application is directed to novel fluorinated polymers and prepolymers derived from mono-substituted oxetane monomers having fluorinated alkoxymethylene side-chains and the method of making these compositions. The mono-substituted fluorinated oxetane monomers having fluorinated alkoxymethylene side-chains are prepared in high yield by the reaction of a fluorinated alkoxides with either 3-halomethyl-3-methyloxetane premonomers or aryl sulfonate derivative of 3-hydroxymethyl-3-methyloxetane premonomers. Preparation of a mono-substituted 3-bromomethyl-3-methyloxetane premonomer via a simple, high yield process amenable to commercial scaleup is also disclosed. The fluorinated oxetane monomers of this invention can be readily homo/co-polymerized in the presence of a Lewis acid and polyhydroxy compounds to obtain hydroxy-terminated polyether prepolymers having fluorinated alkoxymethylene side chains.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: September 16, 1997
    Assignee: Aerojet-General Corporation
    Inventors: Aslam A. Malik, Roland P. Carlson
  • Patent number: 5663236
    Abstract: An ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer obtained by using a catalyst for olefin polymerization containing an organoaluminum oxy-compound (a) and at least two kinds of specific metallocene compounds (b), and a low-density polyethylene obtained by high-pressure radical polymerization.The ethylene/.alpha.-olefin copolymer compositions of the invention are excellent in moldability. From these copolymer compositions, films having high transparency and high mechanical strength can be produced.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: September 2, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Mamoru Takahashi, Seiichi Ikeyama, Akira Todo, Toshiyuki Tsutsui
  • Patent number: 5661219
    Abstract: A curable composition comprising (A) a compound having in the molecule two or more specific blocked carboxyl groups: (B) a compound having in the molecule two or more reactive functional groups which can form chemical bonds with the blocked carboxyl groups, and (C) a catalytic component selected from the following: (a) a thermal latent acid catalyst which comprises a compound having a epoxy group, a specific compound having a sulfur atom and a specific Lewis acid; (b) a thermal latent acid catalyst which comprises a specific compound, having at least one of a nitrogen atom, an oxygen atom, a phosphorus atom or a sulfur atom, a specific compound having a halogen atom and a specific Lewis acid having at least one of an aluminum atom, a zinc atom or a tin atom; or a mixture which comprises (c) a metallic chelate compound and a specific organic silicon compound or a condensate thereof.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: August 26, 1997
    Assignee: Nof Corporation
    Inventors: Yoshinori Nakane, Hiroki Mizutani, Hayato Ishibashi, Masahiro Ishidoya
  • Patent number: 5656336
    Abstract: A method for applying a decoration to a glass substrate comprising applying an ink composition comprising a bis phenol-A epoxy resin to the glass in a predetermined design that leaves some areas of the glass ink free, said ink being operable when cured to bond to the glass substrate, and curing the ink on the substrate by exposing it to the radiation by which it is curable thereby bonding the ink to the glass substrate.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: August 12, 1997
    Assignee: Revlon Consumer Products Corporation
    Inventors: Melvin Edwin Kamen, Ming Hu
  • Patent number: 5656696
    Abstract: A resin composition for injection molding that has excellent transparency, and also has excellent strength and sufficient flexibility. The composition contains 50 to 99% by weight of component A, which is a copolymer of ethylene and .alpha.-olefin having a carbon number of not less than 4, and 1 to 50% by weight of component B, which is an olefin-containing polymer. The component A has: (a) a melt flow rate (MFR) of 10 to 120 g/10 min.; (b) a density (D) of not more than 0.915 g/cm.sup.3 ; and (c) at least one peak of elution volume indicated by an elution curve obtained by temperature rising elution fractionation (TREF), wherein the peak corresponds to a temperature of not more than 85.degree. C., and the elution curve may also indicate substantial elution volume at temperatures other than the temperature to which the peak corresponds.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: August 12, 1997
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koji Yamamoto, Keiko Shichijo, Norikazu Komiya
  • Patent number: 5656693
    Abstract: Thermoplastic elastomers containing ethylene, alpha-olefin, vinyl norbornene elastomeric polymers provide superior cure levels to thermoplastic elastomers containing ethylene, alpha-olefin, diene monomer elastomeric polymers with other dienes than vinyl norbornene. The elastomeric polymers, along with a thermoplastic, curative, and other components will have cure levels in excess of 95 percent. Lower diene incorporation into the polymer combined with lower curative levels yield a fabricated article with improved resistance to compression set and improved heat aging.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: August 12, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Maria D. Ellul, Donald R. Hazelton, Periagaram S. Ravishankar
  • Patent number: 5656691
    Abstract: A reformed polypropylene resin composition having high degree of fluidity and excellent impact strength and rigidity, and further having a melt flow rate of from 50 to 150 g/10 min. and establishing a relationship between the melt flow rate (X) and the Izod impact strength (Y) which satisfies a relation Y.gtoreq.-4.7878 log X+13.8829. The reformed polypropylene resin composition is obtained by blending 0.01 to 0.2 parts by weight of an organic peroxide and 0.05 to 1 part by weight of a crosslinking agent per 100 parts by weight of a total of 50 to 90 parts by weight of a polypropylene having a melt flow rate at 230.degree. C. of 10 to 70 g/10 min, 0 to 25 parts by weight of an olefin copolymer rubber, and 5 to 40 parts by weight of an organic filler, and by melt-kneading the mixture by using a biaxial extruder maintaining a temperature of 120.degree. to 200.degree. in the preceding stage of the screw and a temperature of 180.degree. to 270.degree. C.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: August 12, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yasuhiro Niki, Toshio Kobayashi, Takashi Arai
  • Patent number: 5654450
    Abstract: This application is directed to novel fluorinated polymers and prepolymers derived from mono-substituted oxetane monomers having fluorinated alkoxymethylene side-chains and the method of making these compositions. The mono-substituted fluorinated oxetane monomers having fluorinated alkoxymethylene side-chains are prepared in high yield by the reaction of a fluorinated alkoxides with either 3-halomethyl-3-methyloxetane premonomers or aryl sulfonate derivative of 3-hydroxymethyl-3-methyloxetane premonomers. Preparation of a mono-substituted 3-bromomethyl-3-methyloxetane premonomer via a simple, high yield process amenable to commercial scaleup is also disclosed. The fluorinated oxetane monomers of this invention can be readily homo/co-polymerized in the presence of a Lewis acid and polyhydroxy compounds to obtain hydroxy-terminated polyether prepolymers having fluorinated alkoxymethylene side chains.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: August 5, 1997
    Assignee: Aerojet-General Corporation
    Inventors: Aslam A. Malik, Thomas G. Archibald
  • Patent number: 5650483
    Abstract: This application is directed to novel fluorinated polymers and prepolymers derived from mono-substituted oxetane monomers having fluorinated alkoxymethylene side-chains and the method of making these compositions. The mono-substituted fluorinated oxetane monomers having fluorinated alkoxymethylene side-chains are prepared in high yield by the reaction of a fluorinated alkoxides with either 3-halomethyl-3-methyloxetane premonomers or aryl sulfonate derivative of 3-hydroxymethyl-3-methyloxetane premonomers. Preparation of a mono-substituted 3-bromomethyl-3 -methyloxetane premonomer via a simple, high yield process amenable to commercial scaleup is also disclosed. The fluorinated oxetane monomers of this invention can be readily homo/co-polymerized in the presence of a Lewis acid and polyhydroxy compounds to obtain hydroxy-terminated polyether prepolymers having fluorinated alkoxymethylene side chains.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: July 22, 1997
    Assignee: Aerojet-General Corporation
    Inventors: Aslam A. Malik, Gerald E. Manser, Thomas G. Archibald
  • Patent number: 5645787
    Abstract: A resin tablet for sealing by transfer molding a semiconductor, which is obtained by cooling and solidifying a molten resin composition, is disclosed. The tablet has a compressibility of not less than 98% and a metallic impurity content of less than 50 ppm, preferably with the amount of fine powders of 250 mesh or smaller adhered thereto being controlled below 0.05% by weight based on the tablet and a water content being controlled below 0.1% by weight.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 8, 1997
    Assignee: Nitto Denko Corporation
    Inventors: Tomohiro Taruno, Shinichi Kanai, Hiroyuki Asao, Syoichi Kimura, Yoshio Toyoda
  • Patent number: 5646315
    Abstract: This invention relates to flexible epoxy resins characterized by a low ionic contamination total chlorine content less than 0.1%. The epoxy resins are liquids at room temperature, have Tg values when cured of less than or equal to 150.degree. C., have neat resin viscosities of 25,000 cps or less at 25.degree. C., and have a structural composition comprising an oligomeric backbone of alkyleneoxy repeat units, terminated with an aromatic moiety bearing one or more epoxy functionalities.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 8, 1997
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Rose Ann Schultz, Steven P. Fenelli
  • Patent number: 5641826
    Abstract: Blends of chlorinated polyvinyl chloride and chlorinated polyethylene and methods for preparing extruded profiles such as a window spacer, a glazing bead, a window lineal, and a track for lighting, having smooth surface characteristics are disclosed. The blends comprise 100 weight parts CPVC containing from 62% to 72% chlorine, preferably 65% to 71% chlorine and from 10 to 30 weight parts, preferably 15 to 25 parts of chlorinated polyethylene containing from 25 to 45% chlorine and extruding the blend. The preferred embodiments of the invention are further defined by a particular combination for the chlorine content of CPVC, the real weight average molecular weight of CPE (M.sub.w) and polydispersity (M.sub.w /M.sub.n), defined as the ratio of the weight average to number average molecular weight, and extrusion shear rate.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 24, 1997
    Assignee: The B.F. Goodrich Company
    Inventors: Dennis Lee Lawson, Robert Edwin Detterman
  • Patent number: 5641853
    Abstract: A process for polymerizing oxepanes, dioxolanes, trioxanes, and tetrahydrofurans to their respective polymers by contacting them with a selected metal compound and an accelerator which is a selected vinyl ester or a selected phosphorous compound.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: June 24, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Neville Everton Drysdale
  • Patent number: 5637669
    Abstract: Thermosettable resins, including epoxy resins, polythiirane resins and vinyl ester resins were prepared from compounds containing one or more discotic mesogenic moieties. The resultant thermosettable resins may be processed to provide the discotic liquid crystalline state. The thermosettable resin compositions can be employed in coating, casting, encapsulation, electronic or structural laminate or composite, filament winding, molding and the like applications.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: June 10, 1997
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Jimmy D. Earls
  • Patent number: 5637399
    Abstract: A synthetic resin needle of reinforced with combustible fibers whose longitudinal directions are arrayed straight or curvilinearly along the axial length of the needle. The reinforcing fibers may be dispersed uniformly in the synthetic resin of the needle, or in such a non-uniform manner that the concentration of the fibers in some portion around the peripheral wall of the needle is so scarce that the inner passage of the needle can be observed from outside.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: June 10, 1997
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Makoto Yoshikawa, Koichi Tachikawa, Masaaki Kasai
  • Patent number: 5633267
    Abstract: Fungicidal novel pyridyl-1,2,4-thiadiazoles of the formula ##STR1## in which R.sup.1 represents optionally substituted pyridyl, andR.sup.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: May 27, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Heinemann, Ralf Tiemann, Heinz-Wilhelm Dehne
  • Patent number: 5628933
    Abstract: Applicant has discovered that aliovalently doped zinc-indium-oxide where In is 40-75% of the metal elements can achieve electrical conductivity comparable to wide band-gap semiconductors presently in use while exhibiting enhanced transparency in both the visible and infrared. The material can be doped to resistivity of less than 1 milliohm-cm by small quantifies of aliovalent dopants, such as tetravalent atoms. It can be deposited on glass substrates in amorphous and polycrystalline films.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: May 13, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Sue A. Carter, Robert J. Cava, Jueinai R. Kwo, Julia M. Phillips, Gordon A. Thomas
  • Patent number: 5626697
    Abstract: A pneumatic rubber tire having a rubber sidewall composition containing trans 1,4-polybutadiene rubber and at least one additional rubber.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: May 6, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul H. Sandstrom, Thomas J. Segatta, Johnny D. Massie, II
  • Patent number: 5627237
    Abstract: This invention reveals a pneumatic tire having an outer circumferential tread wherein said tread is a sulfur-cured rubber composition comprised of, based on 100 parts by weight of rubber, (1) from about 5 to about 50 parts of 3,4-polyisoprene rubber, wherein said 3,4-polyisoprene rubber has (a) a 3,4-isomer content of from 75 percent to 95 percent, (b) a 1,2-isomer content of from 5 percent to 25 percent, (c) a glass transition temperature from 0.degree. to 25.degree. C. and (d) a number average molecular weight which is within the range of 30,000 to 180,000; and (2) from about 50 to about 95 parts of a rubbery polymer which is co-curable with the 3,4-polyisoprene rubber.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: May 6, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel F. Halasa, Wen-Liang Hsu, David J. Zanzig, Gerald L. Allen, Laurie E. Austin