Utilizing Plural Mixing Operations In Preparation Of A Solid Polymer Inert Ingredient Concentrate, E.g., Master Batch, Etc. Patents (Class 523/351)
  • Patent number: 6649684
    Abstract: Described are fillers, e.g., inorganic oxides, that have been chemically treated to have a carbon content of greater than 1 weight percent, a mercapto content of at least 0.15 weight percent, a Silane Conversion Index of at least 0.3 and a Standard Reinforcement Index of 4 or more. Polymeric compositions that contain such treated fillers are also described.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: November 18, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Timothy A. Okel
  • Patent number: 6646028
    Abstract: A process is provided for making a carbon-filled rubber having a uniform dispersion of nanometric-sized carbon black particles. Fluffy carbon black is received as a slurry in water and added to latex rubber before or during coagulation in an emulsion styrene butadiene rubber plant, or fluffy carbon black is similarly incorporated in rubber using a different type of rubber-manufacturing process. A uniform dispersion of smaller-than-usual carbon black particles in rubber is formed, which provides a black masterbatch rubber with superior mechanical and rheological properties. Ash and grit is removed from the fluffy carbon black slurry, which further improves the properties of the carbon-filled rubber by reducing defects in the rubber caused by the ash or grit.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: November 11, 2003
    Assignee: CID Centro de Investigacion y Desarrollo Tecnologico, S.A. de C.V.
    Inventors: Francisco Lopez-Serrano Ramos, Luis Enrique Mille Loera, Angel Garcia Garza
  • Publication number: 20030203993
    Abstract: A method of molding a rubber product from a rubber compound by a molding apparatus having a kneading region. A full amount of carbon black (CB) and a full amount of process oil, together with other auxiliary materials except vulcanizing chemicals, are compounded with raw rubber to thereby knead and prepare a granular master batch (granular MB) . The rubber product is extrusion-molded and vulcanized after vulcanizing chemicals (a vulcanizing agent and a vulcanization accelerator) are quantitatively supplied into the kneading region of the molding apparatus through a material supply port while the vulcanizing chemicals are mixed with the granular MB.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 30, 2003
    Inventors: Gunpei Katsumura, Tomoaki Okita
  • Patent number: 6632855
    Abstract: A plastics material comprises an acrylic polymer containing 5-50% of a rubbery copolymer and a biocidal compound. The plastic material is useful as a component of a refrigerator, worktop etc. or as a building material. The material may be used as a coating for a substrate. Method of manufacturing laminate materials comprising the plastics material are also claimed.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: October 14, 2003
    Assignee: Lucite International UK Limited
    Inventors: Gordon Maxwell Beverly, Michael John Ellacott
  • Publication number: 20030191224
    Abstract: An organically modified layered clay ionically bonded with an organic compound having an ammonium group and an amino group, an organic polymer composition containing the same and an organic polymer capable of reacting with the amino group, and an inner liner using the same.
    Type: Application
    Filed: March 26, 2003
    Publication date: October 9, 2003
    Inventors: Tsukasa Maruyama, Kazunori Ishikawa, Naoya Amino, Masahiro Ikawa
  • Publication number: 20030160358
    Abstract: The invention relates to a process for melt-shaping a polymer composition wherein the constituent components for the polymer composition are supplied directly to the shaping device in the form of a mixture of granules on or in which the constituent components are present. The granule mixture contains at least 3 granule-fractions containing the matrix polymer that differ in composition.
    Type: Application
    Filed: March 25, 2003
    Publication date: August 28, 2003
    Inventors: Gerardus J.M. De Koning, Erik R Peerlkamp
  • Publication number: 20030134943
    Abstract: The invention concerns a method for preparing a masterbatch based on a polymer and mineral particles, in particular precipitate silica particles, by mixing a polymer dissolved in an organic solvent and mineral particles, in particular precipitate silica particles, suspended in an organic solvent. The invention also concerns masterbatch obtainable by said method.
    Type: Application
    Filed: July 19, 2002
    Publication date: July 17, 2003
    Inventors: Dominique Labarre, Helene Lanniois-Drean, Patrick De Lanty, Martial Deruelle
  • Publication number: 20030111770
    Abstract: A method for forming a vulcanizable composition of matter, the method comprising providing a polymer cement or latex comprising at least one rubber, adding at least one processing aid to the cement or latex to form a modified rubber cement or latex, isolating the rubber and at least one processing aid to form a premix, and mixing the premix with carbon black.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Applicant: Bridgestone Corp.
    Inventors: Georg G. A. Bohm, Anthony J. Ramic, James D. Ulmer, William L. Hergenrother, Christine M. Rademacher, David F. Lawson, Sunil B. Sarkar
  • Patent number: 6555600
    Abstract: Corrosion inhibiting thermoplastic alloys and methods of preparing same for use in fabricating molded articles with long-term corrosion protection. Masterbatches of nylon, polycarbonate, and polyethylene terephthalate high temperature engineering plastic resins together with selected corrosion inhibitor formulations are extruded for use in injection molding operations Molded articles are prepared from the high temperature engineering plastic resins and a solid phase corrosion inhibitor blended in situ, and wherein the resin consists essentially of nylon, polycarbonates, and polyethylene terephthalate, and wherein the corrosion inhibitor contains a blend of corrosion inhibitors such as cyclohexylammonium benzoate, sodium nitrite, benzotriazole, and sodium sebacate.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: April 29, 2003
    Assignee: Cortec Corporation
    Inventors: Alex Sobkin, Boris A. Miksic, Michael Hobday
  • Patent number: 6548574
    Abstract: An untreated filler and a high viscosity silicone polymer premix is charged into a compounding apparatus. Treating agent and additional silicone polymer are added to the premix and the premix, treating agent and additional silicone polymer are compounded to produce a heat vulcanizable filled silicone composition.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: April 15, 2003
    Assignee: General Electric Company
    Inventors: Devesh Mathur, Alan L. Tate
  • Patent number: 6548559
    Abstract: A new composition is formed by combining a reduced waste rubber, a heavy paraffin and a reduced waste thermoplastic, and then further reducing the resulting material while holding it at an elevated temperature. In preferred embodiments the rubber and thermoplastic are pre-processed by reduction to mesh sizes of about 0.25 inch and 0.5 inch respectively, and the paraffin is pre-processed by being fluidizing to have a viscosity of at most about 1.0 Centipoise. It is also contemplated that the rubber and paraffin can be advantageously combined with each other prior to inclusion of the thermoplastic, with the paraffin/rubber combination being heated to a temperature of about 220° F. to about 250° F. for about 3 minutes. It is still further contemplated that the combination of rubber, paraffin and thermoplastic can be heated to between about 360° F. and about 500° F.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: April 15, 2003
    Inventor: Robert Fish
  • Patent number: 6548570
    Abstract: A radiation shielding material is manufactured from an elastomer that is blended with a radiation-absorbing filler material. The filler material comprises a powder of a metal with a high atomic member, or compounds thereof. The filler material is represented by more than 80 percent weight and has a grain size distribution in the range of 20 &mgr;m to 120 &mgr;m. The filler material is mixed with a loading material in powdered form. That mixture is kneaded with the elastomer within a mixer while the temperature is maintained below 180° C. The kneaded mixture is cooled and then cut into strips. The strips are passed through a strainer having a mesh width of between 5 &mgr;m and 1000 &mgr;m. The strained strips are then formed into a foil.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: April 15, 2003
    Assignee: Arntz Beteiligungs GmbH & Co. KG
    Inventor: Wolfgang Lange
  • Patent number: 6531530
    Abstract: The present invention provides a flame retardant resin composition having excellent impact resistance, heat resistance, dimensional stability, and flame retardance. That is, it provides a flame retardant resin composition made up of: 100 parts by weight of a thermoplastic resin (A) containing: 80 to 10% by weight of (A-1) at least one of an aromatic polyester resin and a polyamide resin, 17 to 85% by weight of at least one of a rubber-containing copolymer of a vinyl cyanide and an aromatic vinyl (A-2) and a copolymer of a vinyl cyanide and an aromatic vinyl (A-3) and 3 to 40% by weight of (A-4) at least one of a polyphenylene ether resin and a polyphenylene sulfide resin, 1 to 60 parts by weight of a non-halogen, organic or inorganic flame retardant (B) and 100 parts by weight or less of a filler (C).
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: March 11, 2003
    Assignee: Daicel Chemical Industries, Ltd.
    Inventor: Takayuki Asano
  • Publication number: 20030040556
    Abstract: Provided are a color pigment master batch having a high recycling property and a process for producing a blow-molded article having a grain-tone appearance using this color pigment master batch.
    Type: Application
    Filed: March 28, 2002
    Publication date: February 27, 2003
    Inventors: Masami Takimoto, Toshihisa Miyaoka, Takeshi Watanabe
  • Patent number: 6521351
    Abstract: The present invention relates to an opaque, white UV-resistant low-flammability film with a thickness of from 10 to 500 &mgr;m whose principal constituent is a crystallizable thermoplastic. It also comprises at least barium sulfate, at least one UV stabilizer and at least one optical brightener. The barium sulfate and/or the optical brightener and/or the UV stabilizer here is either incorporated directly into the thermoplastic when the polymer is prepared or fed as a masterbatch during film production.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: February 18, 2003
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ursula Murschall, Guenther Crass, Klaus Oberlaender, Ulrich Kern
  • Patent number: 6518340
    Abstract: A transparent, flame retardant polycarbonate composition consisting essentially of an aromatic polycarbonate resin and a flame-retarding amount of a guanidine salt or derivatives thereof, wherein the amount of guanidine salt or derivatives thereof is about 1 wt. % or less.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: February 11, 2003
    Assignee: General Electric Company
    Inventors: James Ross Fishburn, Erwin Marie Alfred Gijzen, Johannes Martinus Dina Goossens, Walter van der Heijden, Henricus Hubertus Maria van Hout, Hendrik Verhoogt
  • Patent number: 6515044
    Abstract: The present invention relates to a process for the preparation of high-viscosity polyesters with a reduced content of acid end groups, wherein a masterbatch of low-viscosity polyesters and oxazolines is prepared, this is then mixed with a higher-viscosity polyester and this mixture (dry blend) is further processed.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: February 4, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten-Josef Idel, Hans-Jürgen Dietrich, Matthias Müller
  • Patent number: 6514302
    Abstract: Granular molding materials for fabricating abrasive articles, such as, for example, grinding wheels, are produced by mixing heated abrasive grains with a resin blend including two phenol-novolac resins. Preferably, the resin blend is added to the abrasive grains in the mixer apparatus of the invention, which can be a bowl type mixer. The mixer can be preheated by directing a heated gas, such as air, across the mixer. The granular molding material can also include a curing agent, fillers and other materials generally employed in fabricating abrasive articles.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: February 4, 2003
    Assignee: Saint-Gobain Abrasives, Inc.
    Inventors: Michael J. Lemberger, John P. McNamara, Raymond J. Pellerin, Robert L. Holden, René Goutte
  • Publication number: 20020193466
    Abstract: The invention relates to a process for the continuous production of liquid coating compositions by introducing one or more low-solvent or solvent-free binders in a solid or molten state into an extruder in one stage, together with pigments and auxiliaries, wherein the components are mixed and dispersed at elevated temperature in a viscous state, then introducing proportions of binders and proportions or organic or inorganic solvents into the extruder in one or more following stages, discharging the mixture from the extruder and adding further solvents and optionally further components of the coating composition and homogenizing the process mixture in one or more rotor/stator mixers.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 19, 2002
    Inventors: Evert Kramer, Friedrich Domke
  • Patent number: 6486244
    Abstract: The invention relates to a process for the manufacture of a thermoplastic composition comprising a polyphenylene ether resin and a styrenic resin wherein the processes comprises a concentrate of polyphenylene ether resin with an organic phosphate compound. The concentrate allows for ease of handling of polyphenylene ether resin without the risk of dust ignition while obtaining substantially the same physical properties as obtained with polyphenylene ether resin powder. The invention also relates to articles formed out of the compositions made by the process of the invention.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: November 26, 2002
    Assignee: General Electric Company
    Inventors: Adeyinka Adedeji, Robert Hossan, William E. Pecak, Sai-Pei Ting
  • Patent number: 6476110
    Abstract: Rubber compositions filled with an unusually high content of solid magnetizable particles such as iron oxide or strontium ferrite but having great resistance to crack initiation and crack growth. This allows generation of strongly magnetized areas in rubber articles built with a rubber composition according this invention. This gives—also in those applications where a large distance between a row of magnetized areas and a sensor is necessary due to deformation—well-reproducible and well-recognizable signals despite existence of disturbing magnetic fields. The magnetizable particles are bonded to a rubber matrix by a bonding agent, namely an organo-functional silane.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: November 5, 2002
    Assignee: Continental AG
    Inventors: Frank Paul Papp, Duane Marle Oxley, James Michael Giustino
  • Publication number: 20020156171
    Abstract: The invention includes a process for preparing an improved melt-strength polyolefin blend by incorporating a polyolefin/clay nanocomposite product. The nanocomposite-modified polyolefin blend is used to form articles through processing operations that involve stretching and/or drawing, such as thermoforming, melt spinning, blow molding and foaming. The addition of the nanocomposite product to the polyolefin blend improves the sag resistance of the polyolefin and broadens the processing window of the operation.
    Type: Application
    Filed: February 7, 2002
    Publication date: October 24, 2002
    Inventors: Marta Drewniak, Xia Zhao, Satchit Srinivasan
  • Patent number: 6465546
    Abstract: The present invention disclosures a method for producing a uniform synthetic rubber mixture for formation into a golf ball core. The present invention utilizes mixing 50% to 80% of a base rubber material with zinc diacrylate and other materials, and later mixing the entirety of the base rubber material in order to prevent adhesion and loss of zinc diacrylate. The partial mixing allows for the zinc diacrylate to be dispersed throughout the mixture thereby creating a core with more uniform properties.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: October 15, 2002
    Assignee: Callaway Golf Company
    Inventors: Daniel B. Jackson, Amado M. Garcia
  • Patent number: 6462105
    Abstract: An aliphatic polyester composition for a masterbatch which is improved in dispersibility of a filler, anti-blocking property, transparency, molding stability and slipperiness and which is suited for production of an aliphatic polyester film, and a method for producing an aliphatic polyester film using said composition. An aliphatic polyester composition for a masterbatch comprising 100 parts by weight of an aliphatic polyester and 0.1 to 40 parts by weight of an anti-blocking agent and a method for producing an aliphatic polyester film using said composition are provided.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: October 8, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takayuki Kuroki, Shuhei Ikado
  • Patent number: 6448308
    Abstract: To provide a resin composition as a non-halogenated flame retardant resin composition, having a high degree of flame retardant property, equipped with good electric characteristics by suppressing the generation of phosphoric acid, and improved in working environment and safety by using a flame retardant resin composition comprising (A) a thermoplastic aromatic polyester of 100 parts weight, (B) a coated red phosphorus powder consisting of an essentially spherical red phosphorus having a cured resin coating, directly obtained from a conversion treatment method of yellow phosphorus, not requiring a pulverization and without having crushed surfaces of 1 to 15 parts weight and (C) an aromatic polycarbonate of 5 to 150 parts weight.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: September 10, 2002
    Assignee: Teijin Limited
    Inventors: Mioko Suzuki, Katsuhiko Hironaka, Jun Haruhara
  • Patent number: 6448310
    Abstract: A method of making a dry, solid, powdered flame retardant composition is disclosed. Polyvinyl chloride is mixed with about 20 to about 150 phr of a liquid flame retardant having the general formula at a temperature of about 50 to about 100° C., where R1 and R2 are independently selected from aliphatic from C2 to C20. Also disclosed are a dry, solid, powdered flame retardant composition made by this method, a method of making a flame retardant polymer by compounding that dry, solid, powdered flame retardant composition with a polymer, and a flame retardant polymer made by that method.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: September 10, 2002
    Assignee: Laurel Industries, Inc.
    Inventor: Ronald L. Markezich
  • Patent number: 6440535
    Abstract: A recording sheet is disclosed comprising a substrate, having on at least one side thereon, an ink absorbent layer, said ink absorbent layer comprising alumina sol, at least one gelling agent, at least one cyclodextrin compound, and optionally, at least one binder. The ink absorbent layer may further comprise at least one viscosity, modifying compound and at least one gloss enhancing compound. The recording sheet of the present invention provides enhanced lightfastness properties.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: August 27, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Kai-Kong Iu, Gary W. Byers
  • Publication number: 20020115749
    Abstract: A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.
    Type: Application
    Filed: October 11, 2001
    Publication date: August 22, 2002
    Inventor: Klementina Khait
  • Publication number: 20020111413
    Abstract: A process is provided for making a carbon-filled rubber having a uniform dispersion of nanometric-sized carbon black particles. Fluffy carbon black is received as a slurry in water and added to latex rubber before or during coagulation in an emulsion styrene butadiene rubber plant, or fluffy carbon black is similarly incorporated in rubber using a different type of rubber-manufacturing process. A uniform dispersion of smaller-than-usual carbon black particles in rubber is formed, which provides a black masterbatch rubber with superior mechanical and rheological properties. Ash and grit is removed from the fluffy carbon black slurry, which further improves the properties of the carbon-filled rubber by reducing defects in the rubber caused by the ash or grit.
    Type: Application
    Filed: December 5, 2001
    Publication date: August 15, 2002
    Applicant: CID Centro de Investigacion y Desarrollo Tecnologico, S.A. de C.V.
    Inventors: Francisco Lopez-Serrano Ramos, Luis Enrique Mille Loera, Angel Garcia Garza
  • Patent number: 6423764
    Abstract: Colored polyester plastics produced through the introduction of coloring agents prior to extrusion but after pellet production of the base polymer are provided. As a result, the plastic is melt-extruded and mixed with the coloring agent and subsequently subjected to solid stating wherein the base polymer is accorded an increase in molecular weight and the coloring agent becomes integrated therein. Such a method permits avoidance of introduction of a coloring agent to the polymerization reaction chamber that results in extensive staining (particularly upon a change of desired colors for the next batch of plastic). Such a method also permits avoidance of the introduction of a coloring agent to an injection molding process that results in uneven color dispersion and sub-optimal physical properties within the ultimate article. The inventive procedure produces colored thermoplastics of substantially the same shades and uniformity as with the aforementioned precoloring or masterbatch process.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: July 23, 2002
    Assignee: Milliken & Company
    Inventors: Edward X. Zhao, Todd D. Danielson, Daniel M. Connor, Jason D. Sprinkle
  • Patent number: 6420456
    Abstract: Particles are hydrophobicized by treatment with a compound containing amino and silane groups, followed by treatment with a silane compound containing a hydrophobic group. The invention is particularly useful for treating hydrophilic mineral particles. The treated particles can be used, for example, as fillers in polymer masterbatches.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: July 16, 2002
    Assignee: Bayer Inc.
    Inventor: Ahti Koski
  • Publication number: 20020086917
    Abstract: Elastomer masterbatch is processed in a continuous compounder having multiple parallel elongate rotors axially oriented in an elongate processing chamber. Optionally, additional materials are compounded into the masterbatch, e.g., additives, other elastomeric compositions, etc. Preferably, the masterbatch then is further processed in an open mill. Excellent control of Mooney Viscosity is achieved.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 4, 2002
    Applicant: Cabot Corporation
    Inventors: Bin Chung, Susan W. Green, Ivan Z. Podobnik, Joseph Cianciolo
  • Patent number: 6407149
    Abstract: A method of molding an evenly colored, thermally conductive composition. Thermally conductive filler material is colored and mixed with a base polymer matrix. The mixture is molded into the desired shape. The step of for coloring the filler material is tailored to the type of thermally conductive filler used and could include, as required, anodizing, spraying or dying of the material before mixing with the base polymer matrix and prior to molding.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: June 18, 2002
    Assignee: Cool Options, Inc.
    Inventor: Kevin A. McCullough
  • Patent number: 6403691
    Abstract: Disclosed is a high-concentration talc masterbatch comprising: (A) 10 to 60 parts by weight of an elastomer having a melt flow rate of from 0.5 to 150 g/10 min; (B) 40 to 90 parts by weight of talc having an average particle diameter of from 1 to 15 &mgr;m; and (C) 0.01 to 5 parts by weight of a metal soap, based on 100 parts by weight of the sum of the ingredients (A) and (B).
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: June 11, 2002
    Assignee: Japan Polychem Corporation
    Inventors: Yukihito Zanka, Yoshihiro Banno
  • Patent number: 6372822
    Abstract: Elastomer masterbatch is processed in a continuous compounder having multiple parallel elongate rotors axially oriented in an elongate processing chamber. Optionally, additional materials are compounded into the masterbatch, e.g., additives, other elastomeric compositions, etc. Preferably, the masterbatch then is further processed in an open mill. Excellent control of Mooney Viscosity is achieved. In certain preferred embodiments, elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a coagulated mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: April 16, 2002
    Assignee: Cabot Corporation
    Inventors: Bin Chung, Susan W. Green, Ivan Z. Podobnik, Joseph Cianciolo
  • Patent number: 6362271
    Abstract: A weather resistant coating composition comprising a miscible polymer blend of highly crystalline polyvinylidene fluoride polymer and polyalkyl methacrylate, such as PVDF and PMMA. The miscible blend comprises from about 50 weight percent to about 90 weight percent polymer comprising polyvinylidene fluoride and from about 10 weight percent to about 50 weight percent polyalkyl methacrylate. The polyalkyl methacrylate having a molecular weight within the range of about 25,000 grams per mole to about 200,000 grams per mole. The crystallinity of the polyvinylidene fluoride polymer is about 20% to about 70%. The weather resistant coating has excellent and unexpected physical characteristics, including solvent resistance and gloss retention.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: March 26, 2002
    Assignee: Ausimont USA, Inc.
    Inventors: Shiow-Ching Lin, Craig Kamsler, Karol Argasinski
  • Patent number: 6342560
    Abstract: Described are fillers, e.g., inorganic oxides, that have been modified to have a carbon content of greater than 1 weight percent, a sulfur content of greater than 0.1 weight percent, a Silane Conversion Index of at least 0.3 and a Standard Tensile Stress @ 300% elongation of 7 or more. Polymeric compositions that contain such modified fillers are also described.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: January 29, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Timothy A. Okel
  • Patent number: 6331581
    Abstract: This invention provides a method for color matching of a thermosetting powder coating composition, the method comprising the steps of: dryblending two or more kinds of starting colored thermosetting powder coating compositions of different colors having an average particle size of 10 &mgr;m or less to achieve color matching, and granulating the dryblend to a particle size in the range which is suitable for coating, by adding at least one binder selected from the group consisting of an aqueous solution of polyethylene glycol and an aqueous dispersion of paraffin wax; and a production process therefor. According to the present invention, color matching can be easily made, and a film of the obtained color-matched powder coating composition is excellent in finished appearance and outstanding in properties.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 18, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kazuhiko Ohnishi, Hidefumi Takanashi, Yugen Kawamoto
  • Patent number: 6323262
    Abstract: In a continuous process for producing filler-containing silicone compositions (P), a silicone composition (E) comprising filler (F1) is mixed with filler (F2).
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: November 27, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Frank Achenbach, Manfred Heisler, Armin Fehn, Christof Wörner
  • Publication number: 20010039302
    Abstract: A process for the continuous solvent-free and mastication-free production of self-adhesive compositions based on polyisobutylene with at least one active pharmaceutical substance in a continuously operating apparatus having a filling section and a compounding section, comprising the following steps:
    Type: Application
    Filed: January 12, 2001
    Publication date: November 8, 2001
    Inventors: Jens-Uwe Wustling, Matthias Wasner, Joachim Kirchner, Reinhard Uphus, Soren Struckmann
  • Publication number: 20010031801
    Abstract: Apparatus and method for preparing microparticles. An emulsion is formed by combining two phases in a static mixing assembly. The static mixing assembly preferably includes a preblending static mixer and a manifold. The emulsion flows out of the static mixing assembly into a quench liquid whereby droplets of the emulsion form microparticles. The residence time of the emulsion in the static mixing assembly is controlled to obtain a predetermined particle size distribution of the resulting microparticles.
    Type: Application
    Filed: April 10, 2001
    Publication date: October 18, 2001
    Inventors: Shawn L. Lyons, Steven G. Wright
  • Patent number: 6300401
    Abstract: The disclosure described a material having a damping property, comprising 100 parts by weight of a binder resin composed of 85 to 99% by weight of at least one base resin selected from the group consisting of polypropylenes, polystyrenes, acrylonitrile-butadiene-styrene copolymers, polycarbonates, polyphenylene ethers and modified polyphenylene ethers and 1 to 15% by weight of styrene-isoprene-styrene block copolymer, and 1 to 20 parts by weight of iron compound particles.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: October 9, 2001
    Assignee: Toda Kogyo Corporation
    Inventors: Yasuhiko Fujii, Shigeru Takaragi, Tetsuro Toda, Tomohisa Moriya
  • Patent number: 6291572
    Abstract: Novel methods of making elastomer compositions irclude the use of certain modifying agents and mechanical working prior to incorporation of a vulcanization system in a first or other early stage of a multi-stage process particulate filler, such as carbon black, and sulfur cross-linking agent are substantially dispersed into sulfur crosslinkable hydrocarbon elastomer. The particulate filler and sulfur crosslinking agent can be pre-mixed together as a pre-blend prior to being added to the elastomer. A substantially unvulcanized, processable elastomer is produced by the multi-stage process, involving further mechanical working of the initial masterbatch. A curative additive comprising accelerator, and optionally additional sulfur crosslinking agent, can be added and dispersed in the elastomer to produce a vulcanizable composition.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: September 18, 2001
    Assignee: Cabot Corporation
    Inventors: Trevor Alan Brown, Meng-Jiao Wang, Ralph E. Dickinson
  • Publication number: 20010021732
    Abstract: A propylene-ethylene block copolymer composition is disclosed which comprises 0.
    Type: Application
    Filed: January 19, 2001
    Publication date: September 13, 2001
    Applicant: Chisso Corporation
    Inventors: Minoru Terano, Takahiro Oka, Nobutoshi Komori, Tetsuya Matsukawa
  • Publication number: 20010016615
    Abstract: Corrosion inhibiting thermoplastic alloys and methods of preparing same for use in fabricating molded articles with long-term corrosion protection. Masterbatches of nylon, polycarbonate, and polyethylene terephthalate high temperature engineering plastic resins together with selected corrosion inhibitor formulations are extruded for use in injection molding operations Molded articles are prepared from the high temperature engineering plastic resins and a solid phase corrosion inhibitor blended in situ, and wherein the resin consists essentially of nylon, polycarbonates, and polyethylene terephthalate, and wherein the corrosion inhibitor contains a blend of corrosion inhibitors such as cyclohexylammonium benzoate, sodium nitrite, benzotriazole, and sodium sebacate.
    Type: Application
    Filed: February 5, 2001
    Publication date: August 23, 2001
    Inventors: Alex Sobkin, Boris A. Miksic, Michael Hobday
  • Patent number: 6270692
    Abstract: Dispersion powders with a reduced tendency to autoignition are obtained by adding antioxidants to dispersions before spray drying or to dispersion powders after spray drying.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: August 7, 2001
    Assignee: Clariant GmbH
    Inventors: Ulrich Geissler, Helmut Rinno
  • Patent number: 6267807
    Abstract: A method for grinding colorant agglomerates with a grinding medium comprising a Group IIIB and/or a lanthanide element and a Group IVB oxide. The grinding medium has a grain size of less than about 1.35 microns, and results in the production of substantially pure colorant concentrates.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: July 31, 2001
    Assignee: Lexmark International, Inc.
    Inventors: Kenneth James Harshbarger, Ajay Kanubhai Suthar, Richard Barber Watkins, Austin Keith Wickline
  • Patent number: 6258879
    Abstract: The invention relates to a process for the manufacture of a thermoplastic composition comprising a polyphenylene ether resin and a styrenic resin wherein the processes comprises a concentrate of polyphenylene ether resin with an organic phosphate compound. The concentrate allows for ease of handling of polyphenylene ether resin without the risk of dust ignition while obtaining substantially the same physical properties as obtained with polyphenylene ether resin powder. The invention also relates to articles formed out of the compositions made by the process of the invention.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: July 10, 2001
    Assignee: General Electric Company
    Inventors: Adeyinka Adedeji, Robert Hossan, William E. Pecak, Sai-Pei Ting
  • Patent number: 6232394
    Abstract: The invention relates to thermoplastic master batches having at least one copolymer (A) of ethylene and of at least one unsaturated carboxylic acid ester as support and comprising vulcanization agents for rubbers. The invention also relates to a process for the preparation of master batches containing vulcanization agents and having a thermoplastic ethylene copolymer as support, this process consisting in using an extruder.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: May 15, 2001
    Assignee: Elf Atochem S.A.
    Inventors: Dominique Bonhomme, Walter Pfrengle, Eddine Nour El Bounia, Jean-Michel Pierrot
  • Patent number: 6221283
    Abstract: The invention relates to a method of making a conductive thermoplastic composition containing at least one dispersed phase polymer with a continuous phase polymer and at least one conductivity imparting agent wherein the bulk resistivity of the composition is at least partially determined by the particle size of the dispersed phase within the continuous phase. The thermoplastic composition preferably comprises a compatibilized blend of at least one polyphenylene ether resin, at least one polyamide resin, and at least one conductivity imparting agent, and optionally, one or more of impact modifiers, stabilizers, antioxidants, lubricants, and fillers.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: April 24, 2001
    Assignee: General Electric Company
    Inventors: Raja Dharmarajan, Robert Hossan, Biswaroop Majumdar, Alan Oshinski, Christiaan H. Koevoets, Jan P H Keulen, Antoinette C. van Bennekom, Johannes Matthijssen, Ilse Schlosser