Glass Dnrm Patents (Class 523/527)
  • Patent number: 10233307
    Abstract: A compound represented by formula (I): and a treated filler having the compound on at least a portion of its surface. R is hydrogen or alkyl. X is alkylene, arylalkylene, or alkylarylene, each optionally interrupted by at least one of an ether, thioether, amine, amide, ester, thioester, carbonate, thiocarbonate, carbamate, thiocarbamate, urea, or thiourea, with alkylene optionally interrupted by arylene. W is hydroxyl, a sulfonic acid group, a phosphonic acid group, carboxylic acid group, —NHR1, epoxy, or —Si(Y)x(Z)3-x. Y is alkyl, aryl, arylalkylenyl, or alkylarylenyl. Z is halide, hydroxyl, alkoxy aryloxy, acyloxy, polyalkyleneoxy, —O— covalently bonded to the surface of the filler, or —O bonded to another silicon atom, and x is 0 or 1. A composition including the treated filler, a method of making the treated filler, and a method of determining the degree of cure of a curable polymeric resin are also disclosed.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: March 19, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Mark F. Schulz, Michael S. Wendland
  • Patent number: 9434853
    Abstract: Heat-curable powder coating compositions are provided which include i) at least one crystalline polyester resin present in an amount of at least 7.5 wt %; ii) at least one amorphous polyester resin present in an amount of at most 92.5 wt %; and iii) at least one peroxide present in an amount of at least 0.65 parts of peroxide in hundred parts of i)+ii) (pph), wherein the at least one crystalline polyester resin has 2-butenedioic acid ethylenic unsaturations and/or the at least one amorphous polyester resin has 2-butenedioic acid ethylenic unsaturations. The compositions may be cured to an acceptable degree at low temperature, e.g., 130° C. /20 minutes offering powder coatings that may exhibit enhanced flexibility and good adhesion. In addition, the compositions can suitably be used on heat- and/or non heat-sensitive substrates, even if the composition is highly pigmented.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: September 6, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Tosko Misev, Leendert Jan Molhoek, Johan Franz Gradus Jansen, Matthias Johannes Cornelis Bos, Gerrit Johannes De Lange, Gerbert Dijkstra
  • Patent number: 9062234
    Abstract: An adhesive including at least 100 weight parts of an unsaturated polyester resin suitable for air-drying, between 0 and 5 weight parts of hydrogenated castor oil, between 1 and 20 weight parts of a nano powder, between 10 and 250 weight parts of a filler, and between 1 and 15 weight parts of an anti-shrinking agent.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: June 23, 2015
    Assignee: WUHAN KEDA MARBLE PROTECTIVE MATERIALS CO., LTD.
    Inventors: Kunwen Du, Kunwu Du
  • Publication number: 20140148531
    Abstract: Fibre-matrix material curable thermally by radical polymerization, comprising (A) a polymeric matrix curable thermally by radical polymerization, (B) at least one kind of reinforcing fibres and (C) at least one particulate initiator of the radical polymerization, having an average particle size of 5 nm to 500 ?m, as measured by static light scattering, and selected from the group consisting of benzpinacol and substituted benzpinacols; processes for producing it, and its use for producing fibre-reinforced thermoset mouldings.
    Type: Application
    Filed: April 23, 2012
    Publication date: May 29, 2014
    Applicants: BYK-CHEMIE GmbH, Elantas GmbH
    Inventors: Joerg Hinnerwisch, Gerard Hubertus Louis Reestman, Peter Walter Stannek, Michael Alfred Koska, Klaus-W. Lienert
  • Patent number: 8691890
    Abstract: Provided are a resin composition for general-purpose LED reflectors, which discolors little through thermal deterioration and is excellent in heat discoloration resistance, which can provide an LED lamp using it and having a long life, which is relatively inexpensive and has good storage stability, and which is excellent in handleability and workability, and an LED reflector and an LED luminaire using the resin composition.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: April 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Sunao Nagaoka, Toshio Kubo
  • Patent number: 8372917
    Abstract: A film comprising a polylactic acid and polypropylene blend having a haze of from about 10% to about 95% and a gloss 45° of from about 50 to about 125. A method of producing an oriented film comprising blending polypropylene and polylactic acid to form a polymeric blend, forming the polymeric blend into a film, and orienting the film. A method of producing an injection molded article comprising blending polypropylene and polylactic acid to form a polymeric blend, injecting the polymeric blend into a mold, and forming the article.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: February 12, 2013
    Assignee: Fina Technology Inc
    Inventors: Fengkui Li, Tim J. Coffy, Michel Daumerie
  • Patent number: 8268913
    Abstract: A film comprising a polylactic acid and polypropylene blend having a haze of from about 10% to about 95% and a gloss 45° of from about 50 to about 125. A method of producing an oriented film comprising blending polypropylene and polylactic acid to form a polymeric blend, forming the polymeric blend into a film, and orienting the film. A method of producing an injection molded article comprising blending polypropylene and polylactic acid to form a polymeric blend, injecting the polymeric blend into a mold, and forming the article.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 18, 2012
    Assignee: Fina Technology, Inc.
    Inventors: Fengkui Li, Tim J. Coffy, Michel Daumerie
  • Patent number: 7772163
    Abstract: Well treating composites are composed of an organic lightweight material and a weight modifying agent. The organic lightweight material preferably forms the continuous phase and the weight modifying agent forms the discontinuous phase. The apparent specific gravity (ASG) of the organic lightweight material is less than the ASG of the well treating composite. The composite of the invention is particularly useful in hydraulic fracturing fluids as lightweight proppants as well as in sand control methods, such as gravel packing and frac packing A subterranean formation may be treated by injecting the well treating composite into the formation in order to increase fracture conductivity, reduce the generation of fines, reduced unwanted water production and/or reduce particulate production.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: August 10, 2010
    Assignee: BJ Services Company LLC
    Inventors: Harold Dean Brannon, Allan Ray Rickards, Christopher John Stephenson
  • Patent number: 7557155
    Abstract: A thermosetting composite material, particularly for manufacturing sanitary articles and kitchen sinks, comprising a polymeric matrix that incorporates a filler material distributed in the matrix, the filler material being constituted by glass particles, the preponderant fraction of which has a size distribution from 0.2 to 1.5 mm.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: July 7, 2009
    Assignee: Elleci S.p.A.
    Inventors: Giancarlo Traversa, Giorgio Davide Traversa
  • Patent number: 7285508
    Abstract: The present invention provides a glass flake that is substantially free of boron trioxide (B2O3), barium oxide (BaO), zinc oxide (ZnO), and fluorine (F) and has sufficient heat resistance and good formability for glass flake. The glass flake of the present invention includes a glass composition that contains the following components, expressed in mol %; 50?SiO2?65; 4?Al2O3<12; 5?SrO?25; 10<(MgO+SrO)?30; 20?(MgO+CaO+SrO)?45; and 0<(Li2O+Na2O+K2O)<2; wherein the glass composition is substantially free of B2O3, BaO, ZnO, and F. This glass flake is useful for resin compositions, paints, cosmetics, ink compositions, and the like.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: October 23, 2007
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Kosuke Fujiwara, Akihiro Koyama
  • Patent number: 7256223
    Abstract: Polymeric materials and products, including sheet flooring materials prepared from the polymeric materials, and processes for preparing the polymeric materials, are disclosed. The polymeric materials include a polylactic acid-based polymer in combination with plasticizer and a compatibilizer, and optionally include a filler. The polymeric material can include between about 30 to about 50 percent by weight polyvinyl chloride, polyethylene glycol, polyglycolide, ethylene vinyl acetate, polycarbonate, polycaprolactone, polyhydroxyalkanoates, or polyolefins modified with polar groups, for example, ionomers. The plasticizer is typically an epoxidized vegetable oil or esterified and epoxidized vegetable oil and is typically present in an amount of between about 10 and about 50% by weight. In some embodiments, the compatibilizer is a polyolefin modified with one or more polar functional groups, and is typically present in an amount of between about 5 and about 10% by weight.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: August 14, 2007
    Assignee: Michigan State University, Board of Trustees
    Inventors: Amar K. Mohanty, Lawrence T. Drzal, Brian P. Rook, Manjusri Misra
  • Patent number: 7022754
    Abstract: An unsaturated polyester resin composition containing 8 to 20% by weight of unsaturated polyester resin, 4 to 12% by weight of liquid thermoplastic resin, 8 to 20% by weight of glass fiber, and 50 to 75% by weight of inorganic filler, the unsaturated polyester resin containing 5.10 to 5.90 mmol/g of double bond group concentration, 1.50 to 2.50 mmol/g of ether linkage group concentration, 1.05 to 1.30 mmol/g of isopropylidene linkage group concentration, 2.50 to 3.50 mmol/g of ethylene linkage group concentration, and 3.20 to 3.60 mmol/g of methylene linkage group concentration per 1 g of unsaturated polyester.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: April 4, 2006
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Yuji Yoshimoto, Hisayoshi Daicho, Hideki Tanaka, Hiroka Tanisake, Yasuo Usuda, Yuichi Tsuchiya
  • Patent number: 6887922
    Abstract: The invention describes a solid glass composite comprising glass granules and a binder resin which may be used in a wide range of applications, for example, flooring, furniture, lighting, work surfaces and architectural features.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: May 3, 2005
    Assignee: Sheffield Hallam University
    Inventor: James Roddis
  • Patent number: 6869985
    Abstract: Polymeric materials and products, including sheet flooring materials prepared from the polymeric materials, and processes for preparing the polymeric materials, are disclosed. The polymeric materials include a polylactic acid-based polymer in combination with plasticizer and a compatibilizer, and optionally include a filler. The polymeric material can include between about 30 to about 50 percent by weight polyvinyl chloride, polyethylene glycol, polyglycolide, ethylene vinyl acetate, polycarbonate, polycaprolactone, polyhydroxyalkanoates, or polyolefins modified with polar groups, for example, ionomers. The plasticizer is typically an epoxidized vegetable oil or esterified and epoxidized vegetable oil and is typically present in an amount of between about 10 and about 50% by weight. In some embodiments, the compatibilizer is a polyolefin modified with one or more polar functional groups, and is typically present in an amount of between about 5 and about 10% by weight.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: March 22, 2005
    Assignee: AWI Licensing Company
    Inventors: Amar Kumar Mohanty, Lawrence T. Drzal, Brian P. Rook, Manjusri Misra
  • Publication number: 20040229992
    Abstract: A curable fluoropolyether rubber composition comprising (A) a linear fluoropolyether compound having at least two alkenyl groups in a molecule and a perfluoropolyether structure in the backbone, (B) an organosilicon compound having at least two SiH groups, (C) spherical silica having an average particle size of 0.05-2.0 &mgr;m, and (D) a hydrosilylation catalyst cures into a rubber product having solvent resistance, chemical resistance, mold release, water repellency, oil repellency and improved heat conduction.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 18, 2004
    Inventors: Shinichi Sato, Hiromasa Yamaguchi
  • Patent number: 6794031
    Abstract: A cover-lay film comprising a heat-resistant film and an adhesive layer, wherein the adhesive layer is formed of an epoxy resin composition containing (a) an epoxy resin, (b) a curing agent, (c) a phenolic hydroxyl-containing polyamide-poly(butadiene-acrylonitrile) copolymer, and (d) an ion capturing agent and having a glass transition temperature of 80° C. or higher after cure, and the heat-resistant film mainly comprises a polyimide containing a 3,3′,4,4′-biphenyltetracarboxylic acid component and a p-phenylenediamine component and has a specific coefficient of linear thermal expansion and a specific tensile modulus in both machine and transverse directions.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: September 21, 2004
    Assignees: Ube Industries, Ltd., Nippon Kayaku Co., Ltd.
    Inventors: Tooru Murakami, Toyofumi Asano, Masahiro Imaizumi
  • Patent number: 6780923
    Abstract: A molding compound contains a reinforcing fiber, a non-fibrous filler, and an unsaturated polyester resin. The unsaturated polyester resin contains an unsaturated monomer as well as a polyester polymer. The polymer is a unsaturated polyester made from a hydroxyl component and a carboxylic component. The hydroxyl component contains both a monomeric diol or triol, and a polymeric polyol. The polymeric polyol is a hydroxyl-terminated polymer such as polyether or polyester diols or triols. The carboxylic component can be provided by an unsaturated carboxylic diacid, an unsaturated carboxylic anhydride, an unsaturated carboxylic diester or mixtures thereof. Molded articles are provided by compression or extrusion molding of a molding compound as described above. The articles are characterized by improved crack resistance, toughness, and surface appearance.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: August 24, 2004
    Assignee: ThyssenKrupp Budd Company
    Inventors: Probir K. Guha, Michael J. Siwajek, Robert C. Yen
  • Patent number: 6545068
    Abstract: A composition is provided which comprises a first component, a second component, and a compressible substance in which the first component comprises a peroxide, a liquid which comprises water, and a solid particulate; and the second component comprises a polymer, a crosslinking agent, and a solid particulate. The composition can further comprises a sugar. Also disclosed is a process that can be used for preventing a grouting composition from becoming limp. The process comprises combining a grouting composition with a compressible substance in which the composition comprises a first component and a second component as disclosed above.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: April 8, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Walter John Simmons, Domenic Joseph Barsotti, Phillip Edwin Gramlich
  • Patent number: 6541545
    Abstract: An composition is provided which comprises a first component and a second component in which the first component comprises a peroxide, a liquid which comprises water, a sugar, and a solid particulate; and the second component comprises a polymer, a crosslinking agent, and a solid particulate. Also disclosed are processes for reducing fluid loss in a grouting composition and for anchoring a reinforcing member in a hole using the composition disclosed above.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: April 1, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Walter John Simmons, Domenic Joseph Barsotti
  • Patent number: 6512027
    Abstract: A thermoplastic resin having such a sufficient heat shock resistance that it is unbroken by common temperature changes when applied to an insert molded article, which is obtained by blending a thermoplastic polyester resin (A) with 1-25% by weight to the total amount of the composition of an impact resistance giving agent (B), 1-50% by weight to the total amount of the composition of an inorganic filler (C) and 0.1-10% by weight to the total amount of the composition of an aromatic polyvalent carboxylate (D).
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: January 28, 2003
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hiroyuki Kanai, Toru Katsumata
  • Patent number: 6472069
    Abstract: A composition useful as a gel coat, binder, laminating resin or molding resin comprising (A) unsaturated polyester resin which is the reaction product of one or more polyols and one or more ethylenically unsaturated polycarboxylic acids, anhydrides, or amides, and optionally one or more polyethylenically unsaturated monomers, and/or a vinyl ester resin, (B) one or more first monomer selected from the group consisting of styrene, vinyl toluene, methyl methacrylate, N-vinyl pyrolidone, ethylene glycol dimethacrylate and the dimethacrylate of alkoxylated Bisphenol A, and (C) a second monomer selected from the group consisting of metal salts of an alpha, beta-ethylenically unsaturated carboxylic acids without a loss in heat distortion temperature properties.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: October 29, 2002
    Assignee: Sartomer Technology Company, Inc.
    Inventors: Michael A. Bailey, Richard Costin
  • Patent number: 6384151
    Abstract: The present invention discloses a process for producing a dicyclopentadiene-modified unsaturated polyester. The process includes a first step of reacting a reaction mixture of maleic anhydride (MA) and water (H2O) with dicyclopentadiene (DCPD) and a second step of reacting the reaction product obtained in the first step with a polyhydric alcohol, or a polyhydric alcohol and a polybasic acid, to obtain an unsaturated polyester modified with dicyclopentadiene. In the first step of the process, (1) a molar ratio of water to dicyclopentadiene is greater than 1 and a molar ratio of maleic anhydride to dicyclopentadiene is 1.2 or more, (2) a molar ratio of water to maleic anhydride is 1 or less, or (3) both of the features (1) and (2) are satisfied. The present invention also discloses a polyester resin composition containing the modified unsaturated polyester and a radically polymerizable monomer, and a molding material containing the resin composition as a main component.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: May 7, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kenji Matsukawa, Toshio Hayashiya, Koji Takabatake, Katsura Hayashi, Hironori Funaki
  • Patent number: 6339115
    Abstract: A molding composition comprising (A) a fibrous material, (B) a nonlinear unsaturated polyester and/or (C) a nonlinear unsaturated polyester-polyamide, and (D) a radical generator, and a molded article obtained therefrom.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 15, 2002
    Assignee: Kao Corporation
    Inventors: Katsutoshi Aoki, Takashi Yamaguchi, Kuniyasu Kawabe
  • Patent number: 6281272
    Abstract: A waterborne coating composition having a crosslinking agent and a dispersion of polymeric microparticles in an aqueous medium wherein the microparticles are prepared by first forming a mixture in the aqueous medium of ethylenically unsaturated monomers and a substantially hydrophobic, saturated fatty acid-containing polyester. The amount of fatty acid used to prepare the polyester ranges from about 20 to 80 weight percent of the total weight of the fatty acid-containing polyester. The fatty acid-containing polyester contains functional groups which are capable of reacting with the crosslinking agent. The mixture is particularized into microparticles by high stress techniques, followed by polymerization of polymerizable species within the microparticles to produce the polymeric microparticles. The amount of the fatty acid-containing polyester in the dispersion is at least 10 and up to 70 weight percent based on weight of the ethylenically unsaturated monomers and fatty acid-containing polyester.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: August 28, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Heidi M. Baldy, Dennis L. Faler, Daniel E. Rardon, Gina M. Terrago
  • Patent number: 6274651
    Abstract: A method for repairing, filling and fabricating including the steps of providing a resin containing fiberglass; providing a polyester body fill material; providing a fiber strand body filler; mixing the resin, polyester body fill material and fiber strand body filler at room temperature to form a first mixture; providing a liquid clear fiberglass resin hardener; mixing the liquid clear fiberglass resin hardener with the first mixture at room temperature to form a first composition; providing a cream body filler hardener; and mixing the cream body filler hardener with the first composition at room temperature to form a second composition, the second composition having a putty-like consistency.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: August 14, 2001
    Inventor: Robert Burrell
  • Patent number: 6221935
    Abstract: A resin concrete composition and its molded article are provided, the resin concrete, even with a reduced resin content, having an excellent flowability, which is an important property in a molding operation, and necessitating no shrinkage reduction agent, and the molded article having no cracks and being highly strong. The resin concrete composition comprises (A) a resin composition containing (a) an unsaturated polyester of an unsaturated acid, a di- and/or trialkylene glycol, and dicyclopentadiene and (b) a polymerizable unsaturated monomer, (B) an aggregate, and (C) a filler.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: April 24, 2001
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yoshitomi Hashimoto, Toshio Kanai, Yutaka Furuya
  • Patent number: 6143810
    Abstract: The invention relates to a process for preparing a conductive curable moulding compound with reduced electrical surface resistance, comprising mixing together an unsaturated polyester resin, a thermoplastic polymer, a conductive paste and optionally a filler, and is characterized in that the conductive paste is obtained by dispersing conductive pigment particles in a solution of a thermoplastic polymer in a suitable solvent. The invention further relates to the conductive paste itself and to mouldings having reduced surface resistance, obtained therefrom.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: November 7, 2000
    Assignee: DSM N.V.
    Inventors: Dieter Buhl, Heinz Fuerst, Harald Schneider, Jan Visser, Joachim Zwecker
  • Patent number: 5972421
    Abstract: A method for producing a pelletized pavement marking mixture includes selecting an appropriate thermoplastic binder that is a solid at ambient temperatures and heating the appropriate thermoplastic binder in a reaction vessel to a temperature sufficient to form a liquid thermoplastic binder; forming a heated pavement marking mixture by adding a plasticizer and a filler to the liquid thermoplastic binder in the reaction vessel; forming a substantially homogeneous pavement marking mixture by blending the heated pavement marking mixture for period sufficient to substantially evenly distribute the plasticizer and the filler within the liquid thermoplastic resin while maintaining the heated pavement mixture at an elevated temperature; extruding the substantially homogeneous pavement marking mixture from the reaction vessel to form an extruded substantially homogeneous pavement marking mixture; and pelletizing the extruded substantially homogeneous pavement marking mixture.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 26, 1999
    Assignee: Stimsonite Corporation
    Inventor: Walter Brian Finley
  • Patent number: 5907003
    Abstract: The invention concerns paint compositions for providing road markings, in particular on wet roadways. The paint compositions essentially comprise: at least one unsaturated polyester; at least one ethylenically unsaturated monomer; at least one polymerization accelerator selected from toluidine derivatives; at least one colored pigment; at least one compound which can exude at the surface of the paint and prevent oxygen in the air from inhibiting polymerization; glass beads and dibenzoyl peroxide.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: May 25, 1999
    Assignee: Lafarge Materiaux De Specialites
    Inventors: Estelle Blot, Claude Stock
  • Patent number: 5883166
    Abstract: The present invention is a molding compound comprising an unsaturated polyester resin, a filler, a reinforcement material, a crosslinking monomer, a catalyst, and a mold release agent. The compound also may include a thickener and a low profile thermoplastic additive. The mold release agent is a liquid at room temperature and is selected from the group consisting of tertiary alkyl primary amine carboxylates. The present invention further includes a method of manufacturing a molded plastic component using said molding compound.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: March 16, 1999
    Inventors: Thomas C. Jennings, Joseph Drasner
  • Patent number: 5877246
    Abstract: A moulding material composition for use in sanitary appliances, such as plastic sinks, baths, or wash basins, having a polyester resin in a monomer liquid having a polymerizable vinyl group, a thermoplastic non-shrink polymer, an organic peroxide, glass fibers, a stripping agent of either calcium or zinc stearate; and a filler material. The filler material can be either chemically coated glass micro-beads or calcium carbonate in a marble crystalline form. The calcium carbonate can be provided with or without a pigment coating. In particular, the pigment can be of a polyurethane epoxy material.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: March 2, 1999
    Assignee: Societe Civile Neurone
    Inventor: Thierry Leverrier
  • Patent number: 5789477
    Abstract: A composite building material is disclosed produced from recycled materials. The composite building material is composed of an extruded mixture of high density polyethylene and a thermoplastic coated fiber material such as fiberglass. The resulting material has increased strength and is useful in high stress applications such as railroad ties.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: August 4, 1998
    Assignee: Rutgers, The State University
    Inventors: Thomas Jerome Nosker, Richard William Renfree
  • Patent number: 5767177
    Abstract: Thermosetting composition. According to the invention, it comprises approximately, by weight:33% to 43% of a thermosetting resin;5% to 15% cellulose fibers;15% to 21% mineral fillers;12.5% to 22.5% reinforcement fibers of high mechanical strength.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: June 16, 1998
    Assignee: Cytec Industry Incorporated
    Inventors: Pedro Omente, Lionel Landru
  • Patent number: 5684086
    Abstract: Polymer blends of unsaturated polyetherester resins and dicyclopentadiene polyester resins give single-phase, cured thermosets having high tensile and flexural strength. The thermosets exhibit a single glass-transition temperature within the range of about 70.degree. C. to about 150.degree. C. The synergism resulting from polymer blending provides a cost-effective way to improve the strength properties of cured polyetherester thermosets, and coincidentally, gives a way to improve the flexibility and toughness of cured DCPD polyester thermosets. Glass-reinforced thermosets made from polyetherester resin blends show exceptional structural fatigue resistance.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: November 4, 1997
    Assignee: ARCO Chemical Technology, Inc.
    Inventors: Lau S. Yang, Keith G. Johnson
  • Patent number: 5677367
    Abstract: Disclosed herein is a precursor powder composition comprising a resin, a combination of zinc dust, zinc powder and zinc-coated microspheres and graphite, said powder being soluble in a solvent blend at a facility remote from the powder manufacturing facility, thereby, decoupling the powder manufacturing process from the end use of the powder which could be in a traditional solvent-based paint. Also disclosed are coating compositions for use in protecting metallic substrates from corrosion, comprising necessary additives and film forming substances including alkyl silicate, epoxy resins, powder and non-powder, and polyester resins, all the compositions being modified with about 4 to about 20 weight percent graphite powder based on total weight of the composition.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: October 14, 1997
    Inventor: Ronald R. Savin
  • Patent number: 5614299
    Abstract: The heat-resistant unsaturated polyester resin composition of the present invention consists essentially of (a.sub.1) an unsaturated polyester which is obtained by the reaction of (.alpha..sub.1) a polybasic acid component containing at least an ethylenic unsaturated polybasic acid with (.alpha..sub.2) a polyhydric alcohol component, and (a.sub.2) a diluent monomer component for the unsaturated polyester, wherein the polyhydric alcohol component (.alpha..sub.2) contains 2-methyl-1,3-propanediol and 1,4-cyclohexanedimethanol in the total amount of 50 mol % or more, and 2-methyl-1,3-propanediol and 1,4-cyclohexanedimethanol are in the molar ratio of 9:1 to 5:5. The fiber-reinforced composite material of the present invention comprises the above resin composition and reinforcing fibers. The molded article manufactured using this composite material exhibits excellent strength and rigidity even under high temperatures of over 200.degree. C.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: March 25, 1997
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Koji Yamamoto, Takeshi Kuri
  • Patent number: 5580907
    Abstract: A coating composition for use in protecting metallic substrates from corrosion, comprising in weight percent, based on the total weight of the composition: from about 10% to 20% of a film forming substance; from about 45% to 55% of zinc powder; from about 25% to 35% of zinc dust; from about 1.5% to 2.5% of hollow glass microspheres having diameters ranging from 1 to about 150 microns and a true density of 0.3 to 1.1; from about 2% to 15 % by weight of the film forming substance, of a hardener; about 1% to 2% by weight of the film forming substance, of an amorphous silica; and about 0.3% to 1% of a flow control agent.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: December 3, 1996
    Assignee: Hunting Industrial Coatings
    Inventor: Ronald R. Savin
  • Patent number: 5534584
    Abstract: Exceptional whiteness of glass-filled thermoplastic resin compositions is achieved by incorporating a white-pigmenting effective amount of the anatase form of titanium dioxide. The anatase form of titanium dioxide surprisingly improves the whiteness of glass-filled thermoplastic resin materials while also improving its physical properties (e.g., tensile strength and tensile elongation properties).
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: July 9, 1996
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hiroshi Kitamura, Masamichi Mitsuuchi
  • Patent number: 5521232
    Abstract: The invention is a molding composition and molding process for use in the manufacture of lightweight composite vehicle parts and construction parts having smooth surfaces. The molding process may be at low pressures. The composition includes kaolin clay filler and, optionally, hydrophilic fumed silica thixotrope.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: May 28, 1996
    Assignee: Ashland Inc.
    Inventors: Gilbert M. Gynn, David W. Hearn
  • Patent number: 5516819
    Abstract: A method of producing a thickened organic polymeric composition useful for molding and capable of resisting post-molding shrinkage after being crosslinked comprising a cross-linkable base resin dissolved in an unsaturated monomer, and an additive resin selected from saturated polyesters and saturated amide waxes, the additive resin being crystalline at ambient temperatures and having a melting point (T.sub.m) below a temperature (T.sub.c) at which the base resin cross-linking reaction proceeds at a significant rate. The base resin and additive resin have only a partial degree of compatibility. When cooled from a temperature between T.sub.m and T.sub.c to temperature between T.sub.m and ambient the composition thickens, whereas, when it is heated to a temperature below T.sub.c, it reverts to a flowable composition.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: May 14, 1996
    Assignee: The University of Manchester Institute of Science and Technology
    Inventors: Stephen F. Bush, James M. Methven, David R. Blackburn
  • Patent number: 5496873
    Abstract: A thickened organic polymeric composition useful for molding and capable of resisting post-molding shrinkage after being cross-linked comprises a cross-linkable base resin dissolved in an unsaturated monomer, and an additive resin selected from saturated polyesters and saturated amide waxes, the additive resin being crystalline at ambient temperatures and having a melting point (T.sub.m) below a temperature (T.sub.c) at which the base resin cross-linking reaction proceeds at a significant rate. The base resin and additive resin have only a partial degree of compatibility. When cooled from a temperature between T.sub.m and T.sub.c to a temperature between T.sub.m and ambient the composition thickens, whereas, when it is heated to a temperature below T.sub.c, it reverts to a flowable composition.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: March 5, 1996
    Assignee: Scott Bader Co., Ltd.
    Inventors: Stephen F. Bush, James M. Methven, David R. Blackburn
  • Patent number: 5489481
    Abstract: This development provides crystalline unsaturated polyesters having unreacted olefinically unsaturated monomer entrapped within its crystal lattice. The crystalline polyester can be used in high performance, structural SMC products or as a size or binder for glass fiber reinforcements or mats.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: February 6, 1996
    Assignee: Owens-Corning Fiberglas Technology, Inc.
    Inventors: William G. Hager, John D. Rinehart, James V. Gauchel, Edward L. Wilson
  • Patent number: 5459179
    Abstract: The invention provides a thermosetting resin composition for thermoforming which comprises 100 parts by weight of thermosetting resin, 100-400 parts by weight of inorganic filler, and 5-30 parts by weight of reactive particulate resin having on the surface reactive group(s) crosslinkable with said thermosetting resin.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: October 17, 1995
    Assignees: Ferro Enamels (Japan) Limited, Nippon Paint Co., Ltd.
    Inventors: Yasumasa Asanaka, Hiroshi Takeuchi, Masanori Ohiwa, Tohru Nakatsuka, Shuhei Yamoto
  • Patent number: 5449549
    Abstract: An unsaturated polyester resin characterized by high performance electrical, physical and mechanical properties and useful in the electronic and microwave industries, and a process for preparing such a resin.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: September 12, 1995
    Assignee: Glasteel Industrial Laminates, Inc.
    Inventors: Thomas E. Even, Stephen K. Bishop, Lewis M. Perkey
  • Patent number: 5447676
    Abstract: The unsaturated polyester resin molding composition of the invention comprising an unsaturated polyester, a vinyl monomer, a stabilizer, a thermoplastic resin, an organic peroxide, a fluidity modifier, a thickening agent, a filler and a fibrous reinforcement material possesses curability at low temperatures of about 50.degree. to 120.degree. C., good fluidity and filling property on the occasion of molding at low pressures of about 0.1 to 20 kgf/cm.sup.2, and good storage stability at room temperature.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: September 5, 1995
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yoshihiro Fukuda, Haruyuki Yonehara, Hiromu Miyashita
  • Patent number: 5420179
    Abstract: Liquid resinous compositions suitable for the moulding of objects reinforced with glass fibres and capable of being pigmented, comprising an unsaturated polyester, a copolymerisable monomer and a partially hydroxylated alkyl methacrylate polymer.A hydroxylated alkyl methacrylate polymer which is soluble in the monomer and miscible with the unsaturated polyester is chosen.Application to the manufacture of objects moulded by bulk, sheet and injection moulding.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: May 30, 1995
    Assignee: Cray Valley, S.A.
    Inventors: Dominique Fourquier, Laurent Suspene
  • Patent number: 5356953
    Abstract: Disclosed are a resin composition for artificial marble comprising:(I) an unsaturated polyester obtained by using a divalent alcohol containing hydrogenated hisphenol A as an essential component and an .alpha.,.beta.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: October 18, 1994
    Assignee: Hitachi Chemical Company Limited
    Inventors: Koki Harada, Yasuhisa Odagawa
  • Patent number: 5342554
    Abstract: Vinyl-terminated polyesters and vinyl-terminated aliphatic polycarbonates are described which improve the flexibility and elongation at failure of cured samples of unsaturated polyesters or vinyl ester resins both at room temperature and at high temperatures, and without significant loss of surface quality or other mechanical properties. Further, these polymers do not phase separate from uncured polyester resin/styrene solutions, do not significantly increase the initial viscosity of molding compositions in which they have been incorporated, and do not negate the effect of low shrinkage additives during cure.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: August 30, 1994
    Assignee: GenCorp Inc.
    Inventors: Douglas S. McBain, Kevin P. LaJudice, Earl G. Melby
  • Patent number: 5336710
    Abstract: A resin transfer molding process for manufacture of class `A` surface vehicle body panels. The process has critical ranges of resin (38%-44%) reinforcement fibers (28%-32%) and a filler material (28%-30%).
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: August 9, 1994
    Assignee: Chrysler Corporation
    Inventors: Nippani R. Rao, Saad M. Abouzahr, Russ Spencer, Denis E. Falkowski
  • Patent number: 5319003
    Abstract: A process for making a composite article having improved mechanical properties such as fatigue life, which process comprises contacting at least one continuous filament with a mixture comprising a resin and a strain relieving polymer.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: June 7, 1994
    Assignees: Union Carbide Chemicals & Plastics Technology Corporation, Owens-Corning Fiberglas Technology Inc.
    Inventors: Jaime A. Gomez, Glenn R. Magrum, Eric R. Pohl, Frederick D. Osterholtz, Joshua B. Sweeney, Leonard J. Adzima, Martin C. Flautt, Paul R. Krumlauf