Patents Examined by Tae Yoon
  • Patent number: 5948479
    Abstract: In accordance with the method according to the invention, for the production of the plastics overlay, first of all a paste is made of a plastics dispersion and fillers. This paste is free of organic solvents and is applied to a sintered porous metal layer. The multilayer material thus produced is then sintered. Since the use of organic solvents is dispensed with, health risks and the risk of fire are reduced. Moreover, the composite materials produced according to the invention exhibit excellent cavitation resistance. In addition to conventional lubricant-free applications, such as bearings, these composite materials may consequently be used in particular in gear pumps and shock absorbers.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: September 7, 1999
    Assignee: Glyco-Metall-Werke Glyco B.V. & Co.KG
    Inventors: Achim Adam, Horst Mann, Stefan Fuchsberger
  • Patent number: 5945488
    Abstract: New adducts are produced from the reaction of vinyl dioxo compounds with anhydrides, epoxyesters, lactones, and lactams, and such adducts are useful for preparing curable coating compositions.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 31, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Basil Volodymr Gregorovich, Isidor Hazan, Hisanori Omura
  • Patent number: 5945489
    Abstract: The liquid oligomeric compositions of this invention are made by the Michael addition reaction of acetoacetate functional donor compounds with multifunctional acrylate receptor compounds where the equivalent ratios of multifunctional acrylate to acetoacetate vary from .gtoreq.1:1 to .gtoreq.13.2:1 depending on the functionality of both multifunctional acrylate and acetoacetate. Unuseable gelled or solid oligomer products occur below the claimed ranges. The liquid oligomers of this invention are further crosslinked to make coatings, laminates and adhesives.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: August 31, 1999
    Assignee: Ashland, Inc.
    Inventors: Thomas M. Moy, Laurence Dammann, Roman Loza
  • Patent number: 5942205
    Abstract: This invention aims to provide titanate whiskers which are excellent in heat resistance, chemical resistance and reinforcing effect and are low in coefficient of thermal conductivity.The titanate whiskers of the invention are those represented by the formulaA.sup.I.sub.v A.sup.II.sub.w M.sup.II.sub.x M.sup.III.sub.y Ti.sub.8-z O.sub.16wherein A.sup.I is at least one member selected from alkali metals, A.sup.II is Ba, M.sup.II is at least one member selected from the group consisting of Mg, Co, Ni, Zn, Cu and Mn, M.sup.III is at least one member selected from the group consisting of Al, Sc, Cr, Fe and Ga, and v, w, x, y and z are real numbers which fulfill 0.5.ltoreq.2x+y.ltoreq.2.5, 2x+y=v+2w, and z=x+y.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: August 24, 1999
    Assignees: Otsuka Kagaku Kabushiki Kaisha, Tomita Pharmaceutical Co., Ltd.
    Inventors: Hiroki Murata, Masayoshi Suzue, Akiyoshi Kawaguchi, Fauzi Faustinus, Toshihiro Kamewa, Tomohide Koizumi
  • Patent number: 5942572
    Abstract: Non-ionic compound having the general formula:R.sub.f --L--(OCHR.sub.1 --CHR.sub.2).sub.n --O--L'--R.sub.f' (I)wherein:n is an integer comprised between 4 and 60, preferably between 8 and 30;L and L', equal to or different from each other, can be selected from:--(CFY--CO--O).sub.p R'-- and --(CFY--CO--NH).sub.p R'--wherein: p is 0 or 1; Y can be F or CF.sub.3 ; R' is an alkylic radical C.sub.1 -C.sub.5,R.sub.1, R.sub.2 can be both H or the former one H and the latter CH.sub.3.R.sub.f and R.sub.f', equal to or different from each other, can be perfluoropolyethereal radicals having a number average molecular weight comprised between 250 and 1500, preferably between 400 and 1000; and its use as thickener of aqueous latexes based on fluoropolymers.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: August 24, 1999
    Assignee: Ausimont S.p.A.
    Inventors: Alba Chittofrati, Paolo Lazzari, Daria Lenti
  • Patent number: 5939471
    Abstract: A composite material having a structure in which negatively charged colloidal silica having an average particle diameter of not greater than 50 nm and remaining substantially in the form of primary particles is attached to the outer surfaces of negatively charged polymer particles. By using this composite material, there can be obtained molded articles wherein colloidal silica is dispersed in a resin while remaining substantially in the form of primary particles.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: August 17, 1999
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroyuki Watanabe, Hitoshi Ige, Akira Yanagase
  • Patent number: 5932686
    Abstract: This invention relates to adhesion agents and compatibility agents, respectively, on the basis of partially crystalline, high-molecular block (co)polyester amides, produced by direct esterification of carboxyl-terminated or hydroxycarboxyl-terminated polyamide precondensates and hydroxyl-terminated or hydroxycarboxyl-terminated polyester segments, characterized in that the block (co)polyester amides form two crystalline phases and comprise as segments(A) at least one polyamide or copolyamide block having a uniform number average molar mass of at least 1000 g/mole,(B) at least one aromatic polyester and/or copolyester block having a uniform number average molar mass of at least 1000 g/mole, and(C) at least one further diol component of the general structureHO--R--OH,wherein R is selected from the group consisting of aliphatic or partially aromatic (co)polyesters, aliphatic polyethers, aliphatic (co)polyester amides, polycarbonates or aliphatic or aromatic hydrocarbons.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: August 3, 1999
    Assignee: EMS-Inventa AG
    Inventor: Heinz Hoff
  • Patent number: 5929197
    Abstract: The present invention relates to a process for preparing acylsuccinic acid polyesters by reactingA) a polyester, which is the reaction product oi) maleic acid, maleic acid esters, maleic anhydride, fumaric acid and/or fumaric acid esters and optionally other diacids, monoacids or their derivatives withii) diols and optionally monofunctional alcohols,wherein the molar ratio of diols to diacids and their derivatives is 0.667:1 to 1.5:1, and the molar ratio of maleic acid and its derivatives+ fumaric acid and its derivatives to other diacids and their derivatives is greater than 0.15:1, and the molar ratio of monofunctional compounds to difunctional compounds is less than 0.4:1, withB) aliphatic C.sub.2 -C.sub.22 aldehydes and/or cycloaliphatic C.sub.6 -C.sub.20 aldehydes,in the presence of 0.2 to 10 % by weight (based on the weight of polyester) of free radical initiators at a temperature of 60 to 160.degree. C.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: July 27, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Burkhard Kohler, Rolf-Volker Meyer
  • Patent number: 5928417
    Abstract: The shelf-life of an electrocoagulation printing ink consisting essentially of a liquid colloidal dispersion containing an electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte, a pigment and a dispersing agent uniformly dispersing said pigment into the dispersion, is increased by selecting as the dispersing agent an alkali metal salt of a naphthalenesulfonic acid-formaldehyde polycondensate having the general formula: ##STR1## in which R is an alkali metal and n is an integer ranging from about 5 to about 12.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: July 27, 1999
    Assignee: Elcorsy Technology Inc.
    Inventors: Adrien Castegnier, Normand Lepine
  • Patent number: 5925712
    Abstract: A coating composition which encompasses an aqueous dispersion of from about 2 to about 40 percent by dry weight, based on the dry weight of the coating composition, of a cationic polymer; and from about 60 to about 98 percent by dry weight, based on the dry weight of the coating composition, of a nonionic or cationic binder. The coating composition is thermally fusible and adapted to be receptive to ink jet inks and to retain the ink jet inks after being thermally fused. Alternatively, the coating composition may encompass an aqueous dispersion of a powdered thermoplastic polymer and from about 10 to about 150 dry parts by weight of a binder, based on 100 dry parts by weight of the powdered thermoplastic polymer.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: July 20, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Francis Joseph Kronzer
  • Patent number: 5925224
    Abstract: A solvent containing low-boiling and high-boiling impurities in an evaporating section, so that the high-boiling impurities is left as a tank bottom waste, and a solvent vapor from the section is guide through a mist separator into a condenser. A condensate produced in the condenser is returned to the mist separator so as to serve as a mist catching liquid. A fraction not having condensed in the condenser is fed to a rectifying section where fractional condensation is performed so that the low-boiling impurities are condensed to be removed. A remainder of the solvent vapor from which the impurities have been removed is also condensed and recovered for reuse in the resist washing/exfoliating step during manufacture of liquid crystal devices or IC, so that the soiled solvent need not be discarded or treated in a remote cite, thereby facilitating the process or the step using the solvent.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: July 20, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuki Kobayashi, Kouji Matsuoka, Kensuke Yano, Norio Adachi, Tatsuo Takami, Hiroshi Morikawa
  • Patent number: 5925467
    Abstract: The electrically and thermally conductive plastic contains a polymer and a filler embedded in the polymer, based on a semiconducting material having by doping a predetermined intrinsic electrical conductivity. The filler content is chosen such that the electrical conductivity of the plastic remains largely unchanged in the case of an increase in the filler fraction.This plastic is distinguished by high thermal and electrical--but nonmetallic--conductivity and can be used advantageously for embedding the carrier material of a laminate serving in electrical machine construction for supporting the stator windings of large rotating machines.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: July 20, 1999
    Assignee: ABB Research Ltd.
    Inventors: Ralf Strumpler, Friedrich Konig
  • Patent number: 5922821
    Abstract: High refractive index copolymers suitable for use in ophthalmic lenses, such as foldable intraocular lenses, are disclosed. The high refractive index copolymers of the present invention consist essentially of (i) one or more monomers having the structure: ##STR1## wherein: X is H or CH.sub.3 ;m is 0-10;Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) isoOC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;Ar is any aromatic ring which can be unsubstituted or substituted with H,CH.sub.3, C.sub.2 H.sub.5, n--C.sub.3 H.sub.7, iso--C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;and (ii) one or more monomers having the structure: ##STR2## wherein: X, X' is independently H or CH.sub.3 ;n, n' are independently 2 or 3;m, m' are independently 2-25;Ar, Ar' are independently as defined above;a is 1 or 2; andZ is C(CH.sub.3).sub.2 or S(.dbd.O).sub.2.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: July 13, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Albert R. LeBoeuf, Mutlu Karakelle
  • Patent number: 5922804
    Abstract: A method for reducing the volatile organic content of coating compositions wherein first, the ketimine of acetone is formed by reacting acetone and a ketimine having the formula ##STR1## wherein n is 1 to 4, R.sub.1 and R.sub.2 may be alkyl aryl, cycloaliphatic or substituted alkyl, aryl, or cycloaliphatic group. R.sub.1 and R.sub.2 may be the same or different, with the proviso that R.sub.1 and R.sub.2 are not both CH.sub.3. R.sub.3 is an aliphatic, aromatic arylaliphatic or cycloaliphatic group, which may also contain O, N, S or Si. The ketimine of acetone is subsequently reacted with at least one isocyanate functional crosslinking resin.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: July 13, 1999
    Assignee: BASF Corporation
    Inventors: Bradley M. Richards, Sudhakar Dantiki
  • Patent number: 5919881
    Abstract: Water-soluble vinyl copolymers with number average molecular weight 500-20000, having two specified repetition units at a specified molar ratio and a specified end group can serve as an effective agent for reducing a drop in the fluidity of hydraulic cement compositions.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: July 6, 1999
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventors: Mitsuo Kinoshita, Yoshimasa Miura, Takeshi Arashima, Tomoo Takahashi, Kazuhide Saito
  • Patent number: 5920429
    Abstract: A fluorescent yellow article containing a blend of an N,N'-disubstituted 3,4:9,10-perylenebis(dicarboximide) dye and a fluorescent yellow-green dye soluble in a polymeric matrix and meeting the chromaticity requirements of CIE and ASTM and having a fluorescence luminance factor of greater than 5, as well as a method of preparing such articles is described. Also described is a fluorescent retroreflective article containing a color layer having first and second sides, wherein the article includes retroreflective elements on one side of the color layer or a retroreflective base sheet disposed on one side of the color layer, where the color layer includes the above-mentioned fluorescent yellow article.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: July 6, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David M. Burns, David B. Olson, Lee A. Pavelka
  • Patent number: 5919840
    Abstract: This organosoluble (meth)acrylic resin composition is characterized in that it includes a polymer containing units derived from methacrylic acid which are esterified with --Ti(OR).sub.3 groups, mixed with free Ti(OR).sub.4, which represents the excess of Ti(OR).sub.4 which has been introduced for the preparation of the said polymer in sufficient quantity for the resulting composition to be organosoluble and not in gel form, R representing one of ethyl, isopropyl, n-butyl, t-butyl, 2-ethylhexyl and t-amyl. It may be the product of esterification in a solvent medium of a polymer containing units derived from methacrylic acid with Ti(OR).sub.4, the Ti/COOH molar ratio being higher than 1, preferably being between 3/1 and 10/1; or the product of radical copolymerization in a solvent medium of at least one methacrylic acid esterified with Ti(OR).sub.3 and of at least one comonomer, in the presence of Ti(OR).sub.4, in a quantity which would have corresponded to a reaction between the methacrylic acid and Ti(OR).
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: July 6, 1999
    Assignee: Elf Atochem, S.A.
    Inventors: Didler Vanhoye, Michel Camail, Andre Margaillan, Jean-Louis Vernet, Marie Humbert
  • Patent number: 5919868
    Abstract: The present invention provides an ablatively photodecomposable polymer having a photoabsorber bound to the polymer (the "ablatively photodecomposable polymer") which does not phase separate, nor does it crystallize. The ablatively photodecomposable polymer provides even ablation, high resolution and in preferred embodiments, can withstand potassium permanganate etchant and ferric chloride etchant. The ablatively photodecomposable polymer is strippable, although it can remain on the substrate if desired. The ablatively photodecomposable polymer comprises a polymer to which a photoabsorber is bound, either covalently or ionically. The present invention is also directed to a process for forming a metal pattern on a substrate employing the ablatively photodecomposable polymer.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: July 6, 1999
    Assignee: International Business Machines Corporation
    Inventors: Francis Charles Burns, William Weathers Fleming, Victor Yee-Way Lee
  • Patent number: 5916979
    Abstract: An organosol polyester coating material, comprising at least one linear and/or branched amorphous polyester in solution, at least one blocked polyisocyanate resin and/or at least one triazine resin, fine powder of less than 150 .mu.m in particle size of at least one high molecular weight crystalline copolyester in suspension, having a molar mass of from 10,000 to 50,000 g/mol and substantially non-swelling in organic solvent, and at least one organic solvent having a boiling point of more than 160.degree. C., and optionally at least one pigment or inorganic filler, at least one catalyst, and at least one devolatilizing, defoaming, or wetting additive.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: June 29, 1999
    Assignee: Huels Aktiengesellschaft
    Inventors: Dietrich Koegler, Martin Schmitthenner
  • Patent number: 5914357
    Abstract: As a vehicle resin used for self-polishing antifouling paints, a vinyl polymer having a plurality of primary amino groups in the form of Schiff base in the molecule is used. The films of an antifouling paint containing this vehicle resin gradually release an aldehyde exhibiting antifouling activity from the Schiff base group upon hydrolysis with sea water, while the film gradually dissolves from the surface.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: June 22, 1999
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Isao Nakamura, Naoki Yamamori