Patents Examined by Lewis T. Jacobs
  • Patent number: 5030680
    Abstract: There are provided compositions comprising polyethylene terephthalate and aliphatic polyester with varying combinations of fillers. Molded samples made with these compositions variously have low warpage, good colorability, or economic advantages while retaining other good physical and mechanical properties. One group of compositions exhibits good spiral glow properties and is thus suitable for encapsulation of electronic circuitry.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: July 9, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Charles R. Wilder, Howard F. Efner
  • Patent number: 5030692
    Abstract: Low fuming and less hygroscopic rubber compounding cashew nut shell liquid, allylphenol and alkylphenol modified resorcinolic novolak resins are made by condensing (A) a resol prepared by first reacting at least one monovalent phenol having the general formula (a) ##STR1## wherein R.sub.1 may be selected from the group consisting of hydrogen, an allyl, an alkyl of 1 to about 20 carbon atoms and an aryl having about 6 to about 12 carbon atoms, with methylformcel and/or furfural in the presence of an alkaline catalyst, or optionally reacting at least one monovalent phenol of the above-mentioned general formula (a) and cashew nut shell liquid, with methylformcel and/or furfural in the presence of an alkaline catalyst; and then (B) reacting the product of Step (A) with at least one of the compounds having the general formula (b) ##STR2## wherein R.sub.2 and R.sub.3 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: July 9, 1991
    Assignee: Indspec Chemical Corporation
    Inventor: Bojayan Durairaj
  • Patent number: 5028639
    Abstract: The invention relates to water-dilutable coating compositions which contain a binder, an aluminum pigment and an aqueous diluent. The water-dilutable coating compositions according to the invention are distinguished in that they contain, as the aluminum pigment, a pigment which has been obtained by passivating a lubricant-containing aluminum pigment in an aqueous passivating solution which contains chromic acid and a water-soluble glycol ether of the general formula R.sup.1 --(--O--CHR.sup.2 --CH.sub.2 --).sub.n --OH (R.sup.1 represents a lower alkyl radical, R.sup.2 represents either an H atom or a lower alkyl radical, preferably a --CH.sub.3 group, and n represents a number from 1 to 5) and/or a water-soluble glycol of the general formula HO--(CHR.sup.3 --CH.sub.2 --O--).sub.n H (R.sup.3 represents either an H atom or a lower alkyl radical, preferably a --CH.sub.3 group, and n represents a number from 1 to 5), at not less than 50.degree. C., preferably 60.degree. to 90.degree. C.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 2, 1991
    Assignee: BASF Lacke & Farben AG
    Inventors: Roland Treutlein, Bodo Muller, Peter Mayenfelds
  • Patent number: 5028640
    Abstract: An aromatic polycarbonate resin composition for molding, comprising (a) an aromatic polycarbonate resin, (a) carbon fibers sized with an aromatic polycarbonate resin, and (c) an organic compound having at least two oxazoline rings per molecule is dislosed. The composition has excellent extrusion workability, mold deposit-preventing property and mechanical strength, and can be used as a molding material in the field of precision machines such as cameras, VTR's and facsimiles.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: July 2, 1991
    Assignee: Mitsubishi Gas Chemical Co. Inc.
    Inventors: Goro Shimaoka, Kenji Kouno
  • Patent number: 5028649
    Abstract: Reinforced polyethylene terephthalate molding resin compounds with a glossy surface are provided which crystallize rapidly after being injection molded and which have engineering resin performance characteristics. In addition to polyethylene terephthalate and glass fibers, the compounds contain an aliphatic polyester, an ionic hydrocarbon polymer, an antioxidant, sodium stearate and polyester amide resin. Optionally, the compounds may contain a portion of glass flakes, mica or other filler. The compounds can be flame retarded with a brominated polystyrene and an antimonate without substantial loss of, or change in, properties.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: July 2, 1991
    Assignee: Phillips Petroleum Company
    Inventor: Howard F. Efner
  • Patent number: 5028643
    Abstract: 5,15-Diaza-5b, 15b-dihydrotetrabenzo[a,g,j,p] perylene-6,16-dione, a process for the preparation thereof and its suitability for use as a pigment for coloring a wide variety of organic materials.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: July 2, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Edward E. Jaffe
  • Patent number: 5025045
    Abstract: Damage tolerant composites comprising high strength filaments in the form of bundles or tows of continuous fiber and a tough phase separated, crosslinked epoxy resin matrix are disclosed. The crosslinked epoxy resin matrix comprises infusible particles that reside primarily between plies of the composite and critically have a median particle size between 10-75 microns. Prepregs for making the damage tolerant composites and methods of making such prepregs and the epoxy resin compositions thereof are also disclosed. The epoxy resin compositions comprise the infusible particles which become segregated as to size on a surface layer of the prepreg during the process of combining the high strength filaments of the prepreg and the resin containing the epoxy resin composition. Alternatively, the infusible particles may be disposed directly on the epoxy resin surface of the prepreg.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: June 18, 1991
    Assignee: Hercules Incorporated
    Inventors: Irena Gawin, Brian J. Swetlin
  • Patent number: 5023380
    Abstract: Compounds have a structure represented by Formula I:CF.sub.2 =CF-X-R-(X-CF=CF.sub.2).sub.mwherein R represents an unsubstituted or inertly substituted hydrocarbyl group; each X is independently selected from the group consisting of groups having at least one non-carbon atom between R and --CF=CF.sub.2 ; and m is an integer of from 1 to about 3. Polymers formed from such compounds are also prepared. The compounds are preferably prepared by a method by a process comprising the steps of:(a) forming a salt having anion corresponding to a compound of Formula II:HX--R--(XH).sub.m ;wherein X, R and m are as defined for Formula I;(b) reacting the salt with a 1,2-dihalo-1,1,2, 2-tetrafluoroethane wherein the halo groups are iodine, bromine, chlorine or mixtures thereof, at least one halo group being bromine or iodine, to form a compound of Formula III:Z-CF.sub.2 CF.sub.2 -X-R-(X-CF.sub.2 CF.sub.2 - Z).sub.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: June 11, 1991
    Assignee: The Dow Chemical Company
    Inventors: David A. Babb, Bobby R. Ezzell, Katherine S. Clement
  • Patent number: 5021473
    Abstract: Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface coating solid objects.Process for enhancing the electrostatic chargeability of powder coatings or powders intended for the surface-coating of solid objects, by homogeneously incorporating at least one salt-like, cationic compound of the formula (1) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, denote hydrogen atoms, straight-chain or branched alkyl groups having 1 to 30 carbon atoms, mononuclear or polynuclear cycloaliphatic radicals having 5 to 12 carbon atoms, oxethyl groups of the general formula --(CH.sub.2 --CH.sub.2 --O).sub.n --R in which n denotes a number from 1 to 10 and R denotes a hydrogen atom, a (C.sub.1 -C.sub.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: June 4, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Tobias Macholdt, Alexander Sieber, Claus Godau, Albrecht Manz
  • Patent number: 5021602
    Abstract: Novel compounds have at least one perfluorocyclobutane ring and at least two functional groups suitable for forming condensation polymers. Preferably the compounds have a structures represented by Formula II: ##STR1## wherein R and R' independently represent optionally inertly substituted groups; X and X' represent any molecular structures which link R and R' with the perfluorocyclobutane ring; n and n' are the number of G and G' groups, respectively; and G and G' independently represent any reactive functional groups or any groups convertible into reactive functional groups. The compound are preferably prepared by a process of thermally dimerizing trifluorovinyl compound to form a compounds of Formula IG.sub.n --R--X--CF.dbd.CF.sub.2wherein G represents G or G' in Formula II; X represents X or X' of Formual II; and n represents n or n' of Formula II, to form a compound having a perfluorocyclobutane group.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: June 4, 1991
    Assignee: The Dow Chemical Company
    Inventors: Katherine S. Clement, David A. Babb, Bobby R. Ezzell
  • Patent number: 5021476
    Abstract: The invention relates to an elastic street pavement mass comprising aggregate bound by a binder and, when needed, coloring agents and other additives, and which is particularly suitable for preparing pavements having the shade of the aggregate or being toned. The efforts made so far to replace bitumen, which is hard to dye, by a colorless binder, have resulted in the use of expensive and brittle binders. However, an economical, strong and dyeable pavement mass has now been discovered, the binder of which consists of tall oil resin, wood resin, turpentine resin, their derivatives or a mixture formed by these agents, and of a process oil softening the above resins, comprising additionally rubber and plastic as auxiliary agents. The products have a better stability and at least as high an abrasion resistance to studded tires as a conventional bitumenous pavement mass.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: June 4, 1991
    Assignee: O Pinomaa KY
    Inventor: Olli Pinomaa
  • Patent number: 5019446
    Abstract: Compositions in accordance with the invention comprise a polymer and flake reinforcing material distributed throughout the polymer in an effective amount to structurally reinforce the polymer. Individual flakes of the flake material (a) are less than or equal to 1,000 Angstroms in thickness, (b) have an aspect ratio greater than or equal to 100, and (c) are preferably significantly randomly oriented throughout the polymer. A novel apparatus for shear grinding a platy solid material into such individual flakes comprises a cylindrical shearing drum and a shear grinder received therein. The shearing drum has a longitudinal axis and an internal surface formed about a first predetermined radius of curvature. The cylindrical drum is supported for rotation about its longitudinal axis. The shear grinder has an external surface formed about a second predetermined radius of curvature. The second radius of curvature is slightly less than the first radius of curvature.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: May 28, 1991
    Assignee: Battelle Memorial Institute
    Inventor: Lee R. Bunnell, Sr.
  • Patent number: 5019605
    Abstract: A low density self-extinguishing epoxide composition employing an epoxide, an epoxide hardener, a smoke suppressant and a low density filler is provided. The composition contains from 3 to 10 weight percent bromine.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: May 28, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Patrice Jannic
  • Patent number: 5019618
    Abstract: A pre-cure resistant powder resin binder for waferboard/oriented strandboard manufacture is manufactured from spray drying a liquid resin composition containing a low advanced phenol-formaldehyde resin and a water soluble oxo compound of boron. The spray dryability of the low molecular weight phenol-formaldehyde resin is enhanced by the addition of the oxo boron compound.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: May 28, 1991
    Assignee: Borden, Inc.
    Inventor: Shui-Tung Chiu
  • Patent number: 5019607
    Abstract: Epoxy resins which have silicon-containing functional groups along the polymer backbone are prepared by reacting a polyether having non-terminal hydroxy groups with a modifying agent which (i) reacts with hydroxy groups and (ii) which also contains trialkoxysilane groups. The modified resins can be reacted with a silicon oxide precursor to form an organic/inorganic composite. The composites are shown to have improved properties at elevated temperatures.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: May 28, 1991
    Assignee: Eastman Kodak Company
    Inventors: Bradley K. Coltrain, Gary A. Rakes, Victoria K. Smith
  • Patent number: 5017629
    Abstract: An improved moldable low density thermoplastic composite containing hollow glass spheres comprising a blend of thermoplastic resin, glass fiber reinforcement, and a concentrate of hollow glass spheres dispersed in thermoplastic resin.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: May 21, 1991
    Assignee: The B F Goodrich Company
    Inventors: Gary F. Wilson, Yona Eckstein
  • Patent number: 5017411
    Abstract: A polymer blend comprising a polycarbonate, an acrylonitrile-methyl acrylate copolymer and an imide-acrylate copolymer containing acidic or anhydride groups which have been alkylated or esterified. The polymer blend has a low oxygen permeation rate, high strength, and is suitable for use as a packaging material.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: May 21, 1991
    Assignee: Aluminum Company of America
    Inventors: Charlotte H. Chen-Tsai, Isaac C. Sanchez, William L. Burton
  • Patent number: 5017435
    Abstract: A coating composition useful for a finish for automobiles and trucks in which the film forming binder contains reactive binder components of about(a) 25-90% by weight, based on the weight of the binder, of an acrylic polymer having at least two reactive anhydride groups composed of polymerized monomers of an ethylenically unsaturated anhydride and polymerized monomers from the group consisting of alkyl methacrylate, alkyl acrylate and any mixtures thereof, wherein the alkyl groups have 1-8 carbon atoms and the polymer has a weight average molecular weight of about 2,000-50,000;(b) 5-50% by weight, based on the weight of the binder, of a glycidyl component having at least two reactive glycidyl groups;(c) 5-40% by weight, based on the weight of the binder, of a monomeric or oligomeric anhydride component; andthe composition contains about 0.1-5% by weight, based on the weight of the binder, of a catalyst.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: May 21, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert J. Barsotti, Lili W. Altschuler, Lee R. Harper
  • Patent number: 5015671
    Abstract: A thermosetting, powder coating composition is disclosed which comprises an epoxy resin, a nitrogen-containing curing agent and an inorganic filler consisting essentially of aluminum hydroxide and silica, the weight ratio of the aluminum hydroxide to the silica being 1:4 to 4:1 and the filler being used in an amount of 40-300 parts by weight per 100 parts by weight of the epoxy resin.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: May 14, 1991
    Assignee: Somar Corporation
    Inventors: Kazuya Ono, Tetsuo Miyake, Katsuji Kitagawa
  • Patent number: 5015676
    Abstract: A process for enhancing the electrostatic chargeability of powder coatings or powders intended for surface-coating solid objects, by homogeneously incorporating at least one salt-like, cationic compound of the formulae (1) and/or (2) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, are hydrogen atoms, straight-chain or branched alkyl groups having 1 to 30 carbon atoms, oxethyl groups of the formula --(CH.sub.2 --CH.sub.2 --O).sub.n --R in which R is a hydrogen atom or a (C.sub.1 -C.sub.4)alkyl or acyl group, and n is a number from 1 to 10, mononuclear or polynuclear cycloaliphatic radicals having 5 to 12 carbon atoms, mononuclear or polynuclear aromatic radicals or araliphatic radicals, R.sub.5 denotes a hydrogen, fluorine, chlorine or bromine atom or a (C.sub.1 -C.sub.6)alkoxy or primary amino group, and where R.sub.1 and R.sub.3 may be part of a ring system having 5 to 7 atoms and 0 to 3 double bonds, and A.sup.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: May 14, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Tobias Macholdt, Alexander Sieber, Claus Godau, Albrecht Manz