Cellular Product Containing A Dye Or Pigment Patents (Class 521/920)
  • Patent number: 6723792
    Abstract: A dispersion of one or more additives to be used in the processing of olefin polymers or copolymers, said dispersion comprising nonextruded particles of olefin polymers containing at least two immiscible polyolefinic phases and having internal voids partially or totally filled by the said additive or additives.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: April 20, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventor: Ugo Zucchelli
  • Patent number: 6528152
    Abstract: A stopper of foamed thermoplastic synthetic material for sealing bottles containing foodstuffs or beverages, with an inorganic pigment which is resistant to and suitable for foodstuffs and which changes color under the influence of heat being added to the synthetic material. A method of applying a cork stamp on the stopper which is exposed to the action of heat to color-activate the pigment in areas corresponding to a given pattern of a cork stamp.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: March 4, 2003
    Assignee: “P1”Handels GmbH
    Inventor: Gerhard Piriwe
  • Patent number: 6410141
    Abstract: Spherical particles having a diameter between 0.007″ and 0.040″ are formed from melt extruded thermo-plastic material suitable for casting on a heated mold surface and melting thereon to form a thin layer of material having a nominal thickness of 0.040″ that is cooled and removed from the mold surface as a part having a porosity less than a visually observable threshold. The process includes the steps of providing microspheres formed of blended and melt extruded thermo-plastic, plasticizers and pigment additives that constitute less than 5% by weight of the blend and shaped as a smooth round spherical particle; providing a heated casting surface and distributing a predetermined charge of such microspheres against the heated casting surface; melting the microspheres as a layer of thermoplastic material having a porosity less than 0.003 inches and thereafter cooling and removing the non-porous layer from the casting surface.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: June 25, 2002
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 6344268
    Abstract: Foamed polymer-fiber composites, building materials and methods of making such building materials are provided by this invention. The composites include about 35-75 wt. % of a polymeric resin, about 25-65 wt. % fiber and have a specific gravity of less than about 1.25 g/cc. The low density is provided by the introduction of a blowing agent or gas into a molten precursor of the composite during thermo forming, such as in an extrusion operation.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: February 5, 2002
    Assignee: CertainTeed Corporation
    Inventors: David J. Stucky, Randall Elinski
  • Patent number: 6103342
    Abstract: A decorated shaped product having an expression or design applied thereto which closely resembles an actual expression of a source material such as a natural object is disclosed. The product includes a shaped base material formed thereon with a flow pattern and a transfer pattern of which at least a part is subjected to a concealment exposing treatment and which is printed on the shaped base material. Also, a method manufacturing the product and the shaped base material are disclosed.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: August 15, 2000
    Assignees: Cubic Co., Ltd., Misawa Homes Co., Ltd.
    Inventors: Takeshi Niwa, Tsutomu Yoshida, Naoyuki Sato
  • Patent number: 5998030
    Abstract: Spherical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material formed of blended and melt extruded thermoplastic and pigment.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 7, 1999
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5981611
    Abstract: A plastic sheet capable of being shaped by a cold room temperature tool, said sheet being a semi-rigid thermoformable plastic foam doped with carbon black having a concentration within a range of 0.0000081 to 0.0081% by weight of the foam. And a method of forming a product from such sheet by heating it to its thermoforming temperature range by infrared (IR) heat and placing and compressing the sheet between mold parts of a cold tool, the IR heat preferably being generated by quartz lamp electric heaters.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: November 9, 1999
    Assignee: Prince Corporation
    Inventor: Brian L. Erickson
  • Patent number: 5824400
    Abstract: The present invention relates to a plastic article formed from several foamed thermoplastic elastomers, such as a thermoplastic polyolefin elastomer based on polypropylene and a vulcanized elastomer at least one of an elastomeric styrene/ethylene/butylene/styrene block copolymer, an elastomeric styrene/butadiene/styrene block copolymer, a thermoplastic elastomer based on polypropylene and an elastomeric styrene/ethylene/butylene/styrene block copolymer and a thermoplastic elastomer based on polypropylene and an elastomeric styrene/butadiene/styrene block copolymer. The present invention further provides plastic articles based on a blend of thermoplastic elastomers and thermoplastic elastomer olefins. The invention further provides a process for making these articles.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: October 20, 1998
    Assignee: DSM N.V.
    Inventors: Jordanis Petrakis, Wolfgang Hoge, Torsten Leenaerts, Marinus Alfenaar, Johannes G. M. Nieuwkamp
  • Patent number: 5654102
    Abstract: Sperhical particles having a diameter between 0.007" and 0.040" are formed from melt extruded thermoplastic material formed of blended and melt extruded thermoplastic and pigment.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 5, 1997
    Assignee: Davidson Textron Inc.
    Inventor: Robert A. Grimmer
  • Patent number: 5342689
    Abstract: Microsphere wet cake is mixed with a surface barrier coating effective to prevent agglomeration and surface bonding of the microspheres, and removing water by drying with continuous mixing at high shear. In a subsequent step, by the control of the application of heat and balancing temperature and low shear mixing, it is possible to also control expansion of the microspheres.The surface barrier coating in the present invention is any one of a wide diversity of materials which meet the requirements of the intended function, i.e., to prevent the agglomeration of the microspheres during the process. Suitable materials include, by way of example, dry inorganic pigments or filler materials, and the like, and related organic materials.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: August 30, 1994
    Assignee: Pierce & Stevens Corporation
    Inventors: George E. Melber, Leon E. Wolinski, William A. Oswald
  • Patent number: 4887795
    Abstract: Electrically semi-conducting and conducting open celled ceramic networks and methods for producing them are disclosed. The ceramic network is formed by impregnating an organic foam material with a semi-conducting or conducting ceramic composition, and firing the impregnated material to burn out the foam and to vitrify the ceramic. The semi-conducting or conducting ceramic composition may comprise, on a solids basis, from 45 to 80 percent of a lead-free ceramic frit, from 5 to 15 percent of mono aluminum phosphate, from 6 to 45 percent of a silicone resin, from 0.2 to 13.2 percent of a conducting carbon compound, and an organic solvent or water in an amount sufficient to form a dispersion having a viscosity ranging from 300 to 3000 centipoises, and, in the latter case, from 0.5 to 7 percent of a detergent.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: December 19, 1989
    Assignee: Champion Spark Plug Company
    Inventors: Joseph Nemeth, Charles I. Kowalski
  • Patent number: 4608233
    Abstract: A mixing method and apparatus for preparing multi-component plastic materials, especially polyurethanes, which are mixed before being fed into a mold. According to the invention, a first and at least a second main component are mixed by feeding them into a limited area of a mixing chamber through lateral inlet apertures symmetrically arranged with respect to a plane comprising the longitudinal axis of the chamber and in which a third or secondary component to be mixed is fed through a channel, opening in the chamber upstream of said inlet apertures and orientated so as to direct the flow of the third or secondary component towards said mixing area in the direction of flow of the mixture. A control member is moved toward an advanced position so that it closes the inlet apertures to interrupt feeding of the first and second main components and a coloring agent through respective inlet apertures after a mixing operation.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: August 26, 1986
    Assignee: Afros S.p.A.
    Inventor: Carlo Fiorentini
  • Patent number: 4572869
    Abstract: Air-containing microcapsular opacifiers, optionally containing pigment particles incorporated in the microcapsular structure, have substantially continuous, organic polymeric solid walls and a particle diameter of about 0.5 micron to about 10 microns, e.g., less than 1 or 2 microns. The opacifiers are produced by heating precursor microcapsules containing a liquid core material to a temperature sufficient to substantially drive off the core material from the precursor microcapsules and replace it with air.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: February 25, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Marco Wismer, Jerome A. Seiner
  • Patent number: 4456707
    Abstract: Polyurethane moldings having an inhomogeneously colored surface with color contrasts in fiber-like distribution are made by incorporating colored fibers of a specified type in a polyurethane forming reactionmixture. The colored fibers must have a staple length of from 0.1 to 6 mm, a denier of from 0.1 to 25 dtex, and a coloring agent that does not migrate or dissolve in the polyurethane-forming materials. These fibers are generally used in a quantity such that they represent from 0.1 to 10 wt. % of the polyurethane-forming reaction mixture. Shoe soles, shoe heels, multiple layer soles and padded components are examples of moldings which may be produced in accordance with the present invention.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: June 26, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lothar Hille, Heimo Ludke, Nikolaus Hansjosten
  • Patent number: 4302410
    Abstract: A particulate concentrate, for example pellets, is provided comprising predetermined amounts of a pigment and a blowing or foaming agent in a polymer matrix. The concentrate can be added to an extruder together with a polymer insulating material for the formation of color-coded cellular insulation on a conductor wire of a cable, for example a communication cable. The composition of the concentrate is so determined that different color-coded, cellular, insulating coatings can be produced which are dielectrically matched, as required.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: November 24, 1981
    Assignee: Phillips Cables Limited
    Inventor: Shirley Beach
  • Patent number: 4166163
    Abstract: Colored polyurethane foams are prepared by the reaction of a polyisocyanate with a component that contains at least two compounds having functional groups containing active hydrogen atoms and that comprises a polyol and a dispersion of a pigment in a low-viscosity, semi-reactive vehicle that comprises a glycol monocarboxylate, such as 1,2-propylene glycol mononeodecanoate.
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: August 28, 1979
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Eugene P. DiBella, Morris Dunkel, Henry Gould
  • Patent number: 4153762
    Abstract: The invention relates to a process for working additives into polymers, in which a mixture of thermoplastics with additives is heated to a temperature sufficient for the melting process, with the possible introduction of an expanding agent into the melt in which the expanding agent is homogenized, the melt being cooled if necessary to a temperature at which it can be extruded in the form of a foam plastic, the additives being adsorbed on a polymer flocculent matrix having a sufficient specific area, due to having a density of up to 0.6 g/cm.sup.3 and 15 to 99% of open foam cells and being of the same or different polymer composition as the basic polymer.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: May 8, 1979
    Assignee: VEB Leuna-Werke "Walter Ulbricht"
    Inventors: Werner Lauterberg, Herbert Steinmetzer, Brigitte Weber, Dieter Haack, Werner Taube
  • Patent number: 4132840
    Abstract: Polyurethane plastics are dyed with dyestuffs of the formula ##STR1## wherein R.sub.1 denotes hydrogen, halogen, optionally substituted C.sub.1 -C.sub.4 -alkyl, optionally substituted C.sub.1 -C.sub.4 -alkoxy and optionally substituted C.sub.1 -C.sub.4 -alkylcarbonylamino and R.sub.2 denotes hydrogen, optinally substituted C.sub.1 -C.sub.4 -alkyl and optionally substituted C.sub.1 -C.sub.4 -alkoxy, while A and B denote optionally branched alkylene chains which can be identical or different and preferably have 2 to 6 carbon atoms, with formation of covalent bonds, in that the dyestuffs are added before or during the polyaddition reaction to the reacton mixture of polyol and polyisocyanate or to one of the components.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: January 2, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Hugl, Gerhard Wolfrum