Patents Examined by Melvyn I. Marquis
  • Patent number: 6221495
    Abstract: A process for preparing thin Cd2SnO4 films. The process comprises the steps of RF sputter coating a Cd2SnO4 layer onto a first substrate; coating a second substrate with a CdS layer; contacting the Cd2SnO4 layer with the CdS layer in a water- and oxygen-free environment and heating the first and second substrates and the Cd2SnO4 and CdS layers to a temperature sufficient to induce crystallization of the Cd2SnO4 layer into a uniform single-phase spinel-type structure, for a time sufficient to allow full crystallization of the Cd2SnO4 layer at that temperature; cooling the first and second substrates to room temperature; and separating the first and second substrates and layers from each other. The process can be conducted at temperatures less than 600° C., allowing the use of inexpensive soda lime glass substrates.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: April 24, 2001
    Assignee: Midwest Research Institute
    Inventors: Xuanzhi Wu, Timothy J. Coutts
  • Patent number: 6149979
    Abstract: A process for the preparation of a photosensitive body surface coating material comprises hydrolytically condensing an alkoxysilane in a mixed solvent comprising an alcohol and water in the presence of finely divided silica. A polysiloxane resin is produced by heat curing the silane after its hydrolytic condensation. The polysiloxane resin has the formula: R.sup.1 SiO.sub.3/2, and R.sup.1 comprises fluorohydrocarbon groups. The photosensitive body surface coating material is not detrimental to the functionality required of the electrophotographic photosensitive bodies, has superior optical uniformity, has low surface energy, and has superior surface hardness.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: November 21, 2000
    Inventors: Nobuo Kushibiki, Kikuko Takeuchi, Hideki Kobayashi, Toru Masatomi
  • Patent number: 6147159
    Abstract: A modified solid support for use in solid phase synthesis which comprises:a solid support having a linker group extending therefrom having the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are each independently selected from the group consisting of alkyl, cycloalkyl, aryl, alkoxy, aryloxy, fluorine, chlorine, iodine and bromine.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: November 14, 2000
    Assignee: Argonaut Technologies
    Inventors: Yonghan Hu, Jeffrey W. Labadie, John Anthony Porco, Jr., Barry Martin Trost
  • Patent number: 6121378
    Abstract: A thermosetting powder paint composition for top coating excellent in weather resistance and storage stability, which comprising 100 parts by weight of an acrylic copolymer (A) having an epoxy group, and 0.01 to 2.0 parts by weight of an organic modified polysiloxane (B) containing at least one functional group, at least two silicon atoms and no radical-polymerizable unsaturated bond wherein the component (B) is contained in the condition that a part or all thereof has reacted and bonded with the component (A) or the component (C), or all thereof has not reacted with them.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: September 19, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takahisa Miyawaki, Yoshio Kikuta, Mitsuyuki Mizoguchi, Hiroyuki Sakayama, Tsuyoshi Matsumoto
  • Patent number: 6121404
    Abstract: A method of making .beta.-diketo functional silanes and siloxanes in which the acetoacetic ester moiety, i.e., .beta.-diketo CH.sub.3 COCH.sub.2 CO--, is attached to the oxygen or nitrogen atoms of C--OH or C--NH.sub.2 containing functional silanes or siloxanes, by reacting the organosilicon nucleophile with diketene, as illustrated below for the C--OH containing functional silane. ##STR1## The products can be formed into curable compositions, or used as additives in durable textile treatments, polyurethane foams, and hair care applications.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: September 19, 2000
    Assignee: Dow Corning Corporation
    Inventor: Donald Taylor Liles
  • Patent number: 6114449
    Abstract: A curable rubber composition comprises of a silicone rubber (A) and an ethylene-.alpha.-olefin-polyene amorphous copolymer (B) containing as the polyene component a norbornene compound having at least one kind of vinyl terminal group represented by 5-vinyl-2-norbornene or 5-methylene-2-norbornene. The rubber composition is speedily cured, if said components (A) and (B) are mixed by the A/B mixing ratio of 98/2-2/98 (% by weight) and kneaded in the presence of an organic peroxide. A vulcanizate rubber excelling in mechanical strength, water resistance and thermal aging resistance can be manufactured from said composition, since its crosslink density can be enhanced without impairing processing properties. Additionally, said composition entails reduced mold fouling phenomenon in the molding operation. Vulcanizate rubber thereby obtained can be advantageously used as industrial parts and electric parts.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: September 5, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tetsuo Tojo, Takashi Hakuta, Mikio Hosoya
  • Patent number: 6103847
    Abstract: This invention discloses hydrophilic additives in polysiloxane gels, elastomers and coatings, and novel processes for producing them. The process comprises:(a) redistributing into polysiloxane-polyether copolymers an unsaturated silane or siloxane,(b) adding to the mixture of reagents a catalytically effective amount of a basic catalyst; and(c) heating the reaction mixture to effect reaction.Novel siloxane structures of unsaturated aliphatic modified polyerther siloxane copolymers are also taught.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: August 15, 2000
    Assignee: Witco Corporation
    Inventors: Kenrick M. Lewis, Hua Yu
  • Patent number: 6103398
    Abstract: An optoelectronic device (10) having an overfill material (30) that protects components of the optoelectronic device (10) and a method for assembling the optoelectronic device (10). The optoelectronic device (10) includes a support structure (16) on which an optoelectronic device (12) is mounted. In addition, the optoelectronic device includes a fiber ferrule (13) through which an optical fiber (39) extends. The optoelectronic device (12) and the optical fiber (14) are coated with an overfill material (30).
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: August 15, 2000
    Assignee: Motorola, Inc.
    Inventors: Laura J. Norton, Joseph E. Sauvageau, Robert K. Denton
  • Patent number: 6083860
    Abstract: A method for forming dense ceramics, particularly a ceramic coating by a low temperature treatment is provided. The method for forming ceramics according to the invention is characterized in that a polysilazane having a number-average molecular weight of 100 to 50,000 or a modified polysilazane thereof is subjected to a heat treatment, then exposed to an atmosphere containing water vapor or immersed in distilled water containing a catalyst, or both, or is brought into contact with Pd.sup.2+ ions and water, the polysilazane having a skeleton comprising the unit represented by the following general formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represents a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, a group other than the above and having a carbon atom directly attached to the silicon atom, an alkylsilyl group, an alkylamino group and an alkoxy group; with the proviso that at least one of R.sup.1, R.sup.2 and R.sup.3 is a hydrogen atom.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: July 4, 2000
    Assignee: Tonen Corporation
    Inventors: Hideki Matsuo, Masahiro Kokubo, Takashi Ohbayashi, Yuji Tashiro, Tadashi Suzuki, Masami Kizaki, Haruo Hashimoto, Yasuo Shimizu, Takaaki Sakurai, Hiroyuki Aoki
  • Patent number: 6084049
    Abstract: A release agent composition for use in an electrophotographic process is disclosed. This composition includes a specifically-defined heat-stable silicone oil-silicone wax random copolymer. The copolymer has a melting point such that it is liquid on the hot fuser roll, but solidifies at room temperature on the printed page. A random silicone copolymer, in the form of a paste or pliable caulk, which is useful for sealing leaks in toner cartridges is also disclosed. Finally, the method for preparing these copolymers is disclosed.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: July 4, 2000
    Assignee: Lexmark International, Inc.
    Inventors: Bradley L. Beach, Kathryn E. Dowlen, Terence E. Franey, Douglas C. Hamilton, Gerald G. Leslie, Alexander D. Meade, Jing X. Sun, Peter E. Wallin
  • Patent number: 6077896
    Abstract: It is an object of the present invention to provide a curable composition capable of providing good rubber-like mechanical properties with low stress and high elongation, without sacrificing tack, recovery, curability, weathering resistance, storage stability and other characteristics.This invention relates to a curable composition which comprises (a) an oxyalkylene polymer containing at least one reactive silyl group per molecule thereof and (b) a compound having an intramolecular .alpha., .beta.-diol or .alpha., .gamma.-diol structure.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: June 20, 2000
    Assignee: Kaneka Corporation
    Inventors: Ayako Yano, Masayuki Fujita, Hiroshi Iwakiri
  • Patent number: 6077885
    Abstract: The invention provides chromate-free coating mixtures, and coatings formed from these mixtures, that protect an underlying aluminum or aluminum alloy substrate from corrosion. The coating mixtures include a continuous phase selected from organic polymeric compositions, or sol-gels, and a distributed phase, dispersed or dissolved throughout the continuous phase. The distributed phase includes the corrosion-inhibiting chromate-free salts. In accordance with the invention, the mixture of salts includes (1) a first salt selected from (a) the esters of rare earth metals, such as cerium and lanthanum oxalates and acetates, and (b) the vanadate salts of alkali and alkali earth metals, such as sodium metavanadate and calcium metavanadate; and (2) a second salt that is a borate salt of alkali earth metals, such as barium metaborate. In certain embodiments, the coatings of the invention include both (a), and (b), in conjunction with the borate salt (2).
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: June 20, 2000
    Assignee: The Boeing Company
    Inventors: Harold E. Hager, Chris J. Johnson, Kay Y. Blohowiak, Chun M. Wong, John H. Jones, Robert L. Cook, Jr., S. Ray Taylor
  • Patent number: 6074695
    Abstract: To provide a composition for the formation of insulating films that can form an insulating film having a low dielectric constant. The composition comprises (A) an electrically insulating curable resin selected from the group consisting of electrically insulating curable organic resins and electrically insulating curable inorganic resins; and (B) at least two solvents: (B)(i) a solvent capable of dissolving resin (A) and (B)(ii) a solvent whose boiling point or vapor pressure curve differs from that of solvent (B)(i) or whose affinity for resin (A) differs from that of solvent (B)(i). Also claimed is a method for forming a insulating films that have a dielectric constant of less than 2.7.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: June 13, 2000
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Akihiko Kobayashi, Katsutoshi Mine, Takashi Nakamura, Motoshi Sasaki, Kiyotaka Sawa
  • Patent number: 6063898
    Abstract: The first aspect of the invention provides a novel compound containing a reactive functional group represented by formula (1)R.sup.2 --O--CO--NH--CH.dbd.CH--R.sup.1 (1)wherein R.sup.1 represents a hydrogen atom, an aromatic hydrocarbon group, or a saturated or unsaturated aliphatic hydrocarbon group, R.sup.2 represents a formula comprising alicyclic functionality.The second aspect provides an active energy ray-curable unsaturated resin composition prepared by mixing a reaction product of the above-mentioned compound (1) with an unsaturated resin containing an acid group and with a diluent. The composition can be cured by active energy rays, and it can be used as an alkali developable and active energy ray-curable type resist resin composition.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: May 16, 2000
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Takeshi Endo, Hiroto Miyake
  • Patent number: 6063887
    Abstract: A 1-acyloxy-organotetrasiloxane represented by the general formula: ##STR1## wherein R.sup.1 is a monovalent organic group containing an acryloyloxy group or a monovalent organic group containing a methacryloyloxy group, and R.sup.2 is a monovalent hydrocarbon group, and a process for producing the above mentioned 1-acyloxy-organotetrasiloxane, which is characterized by subjecting hexamethylcyclotrisiloxane to a ring-opening reaction with an acyloxysilane represented by the general formula: ##STR2## wherein R.sup.1 is a monovalent organic group containing an acryloyloxy group or a monovalent organic group containing a methacryloyloxy group, and R.sup.2 is a monovalent hydrocarbon group, in the presence of an acidic catalyst.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: May 16, 2000
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventor: Tadashi Okawa
  • Patent number: 6060546
    Abstract: A non-aqueous silicone emulsion containing a silicone phase and an organic phase is useful as a component in various personal care compositions. The silicone phase contains a crosslinked silicone elastomer and a low molecular weight silicone fluid and the organic phase contains an organic liquid.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: May 9, 2000
    Assignee: General Electric Company
    Inventors: Virginia V. Powell, Amy-Elizabeth Kasson, John A. Kilgour, An-Li Kuo
  • Patent number: 6059553
    Abstract: An integrated circuit with an intermetal level dielectric (IMD) including an organic-silica hybrid (110) and located between metal lines (104).
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: May 9, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Changming Jin, Stacey Yamanaka, R. Scott List
  • Patent number: 6060540
    Abstract: The present invention provides a modeling paste comprising a latent material which can be applied as a thick layer to a substrate and which after activation rapidly crosslinks to a machinable surface.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: May 9, 2000
    Assignee: Landec Corporation
    Inventors: Mark A. Wanthal, Paul C. Paetzke, Guy J. Stokes
  • Patent number: 6057042
    Abstract: An organopolysiloxane composition for surface treatment comprising (A) a reaction product of (1) a silane and/or a siloxane each having a substituted or unsubstituted amino group bonded to the silicon atom via at least one carbon atom and also having an alkoxy group bonded to the silicon atom and (2) a silane and/or a siloxane each having a monovalent hydrocarbon group bonded to the silicon atom, the hydrocarbon group being substituted with an epoxy-containing group, and an alkoxy group bonded to the silicon atom and (B) a specific organopolysiloxane containing an amino group. The composition provides a non-sticky, water-repellent and slippery film on a substrate, especially an EPDM rubber sheet and EPDM molded sponge, with markedly improved adhesion.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: May 2, 2000
    Assignee: Toshiba Silicone Co., Ltd.
    Inventor: Hiroyoshi Shimotsu
  • Patent number: 6057404
    Abstract: Polymers containing .beta.-hydroxyalkylvinylamine units, which are obtainable by reacting polymers containing vinylamine units with epoxides of the formula ##STR1## where R=C.sub.2 -C.sub.28 -alkyl, phenyl, C.sub.1 -C.sub.18 -alkylphenyl or C.sub.2 -C.sub.18 -alkenyl, are described, as are a process for preparing the polymers and use of the polymers as retention and drainage aids and flocculants and as fixatives in paper making, as protective colloid for producing alkyldiketene dispersions or alkenylsuccinic anhydride dispersions, as emulsifier for producing aqueous filler suspensions and as corrosion inhibitor.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: May 2, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Jens Utecht, Manfred Niessner, Dietmar Monch, Martin Rubenacker