| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 521080000 | Including solid polymer formation in or during extruding step | 12 |
| 20080221230 | Flame retardants for use in styrenic foams - The invention is a flame retardant for styrene foams. The flame retardant contains both aromatic bromine and an olefin. The olefin is an internal olefin. Desirable flame retardants are selected from: | 09-11-2008 |
| 20080275150 | Carbon Foam With Supplemental Material - A carbon foam composite including a carbon foam skeleton having a supplemental material therein, the composite useful for, inter alia, a variety of applications including applications requiring durability and water resistance. Also included is a method for making such carbon foam composite materials. | 11-06-2008 |
| 20080300330 | Foam Extrusion Process Using Multiple Independent Restraining Elements - A foam extrusion process using multiple independent restraining elements ( | 12-04-2008 |
| 20090312444 | CAST MOLDED ARTICLE MADE OF POLYURETHANE POROUS SUBSTANCE AND METHOD FOR PRODUCING THE SAME - An object of the invention is, in producing a cast molded article by crosslinking a water-dispersed urethane prepolymer with a polyamine compound, providing a method for producing a cast molded article made of a polyurethane porous substance in which a cured reactant has good demolding properties and a cast molded article with a fine structure can be easily produced, and a cast molded article having a fine structure with high dimensional accuracy. The cast molded article of this invention is produced by reacting polyol, a chain length regulator, isocyanate and 0.1 through 4 wt % of a hydrophilic chain length regulator to one another, allowing a resultant urethane prepolymer having a terminal isocyanate group to be mixed with and dispersed in water, mixing a resultant water-dispersed urethane prepolymer with 1,4-diaminobutane and injecting a resultant mixture into a die for crosslinkage, and demolding a resultant cured reactant and removing moisture from the cured reactant. | 12-17-2009 |
| 20100144912 | Foam and Production Method of the Same - A resin foam having fine foam cells is provided at low cost. A method of producing the foam includes preparing a molten resin composition and continuous extrusion foaming of the molten resin composition. The molten resin composition is prepared by melting a resin mixture of resins (A) and (B) by dissolving a foaming agent into the resin mixture. Resins (A) and (B) respectively have appropriately selected glass transition temperatures and resin (B) particles of appropriate diameter are dispersed in resin (A). | 06-10-2010 |
| 20100286294 | DEGRADABLE ENVIRONMENT-FRIENDLY TYPE POLYPROPYLENE (PP) FOAM PLASTIC AND PREPARATION METHOD THEREOF - An environment-friendly type polypropylene foam plastic and preparation method thereof. The foam plastic utilizes plastic elastomer as basis material, and a third monomer is led in as crosslinking co-agent to carry out crosslinking and control degradation products. Foam plastic profile products are made by graft copolymerizing said monomer on polypropylene and crosslinking, and then internal mixing, open mixing, sheeting and foam molding with compatibilizer, filler, nucleating agent, crosslinking agent and foaming agent. | 11-11-2010 |
| 20100317755 | Process For Preparation Of Ethylene Polymers For Blown Films - Process for preparation of ethylene homopolymers or copolymers, comprising the steps of a) polymerization of ethylene or of ethylene with one or more other 1-olefins in the presence of a chromium catalyst at temperatures of from 20 to 200° C. and at pressures of from 0.1 to 20 MPa, where the chromium catalyst can be prepared via application of one or more chromium compounds to a silicate support and subsequent thermal activation under oxidative conditions at temperatures of from 620 to 900° C.; b) mixing of the polyethylene in the melt in the presence of from 1000 to 2000 ppm of an antioxidant comprising at least one sterically hindered phenol and comprising at least one phosphite in a mixing ratio of from 1:5 to 5:1, with specific energy input of at least 0.17 kWh/kg. | 12-16-2010 |
| 20110263729 | Fiber or Foil from Polymers with High Tg and Process for their Manufacture - A process for the manufacture of a fiber or foil comprising at least one optionally functionalized polymer with a high Tg selected from the group consisting of poly(aryl ether sulfone) (PAES), poly(aryl ether ketone) (PAEK) and aromatic polyimide, comprising the steps of (aa) providing a solution comprising at least 45 wt. % of the polymer, and at least 20 wt. % of at least one halogen-free organic solvent (S1) for the polymer, both wt % based upon the weight of the solution; (bb) pushing the solution through a nozzle; and (cc) introducing the solution into a coagulation bath comprising: (cc1) at least one liquid (L1) in which the polymer is insoluble, and optionally (cc2) at least one organic solvent (S2) for the polymer, identical to or different from the organic solvent (S1), to form a fiber or foil. A fiber or foil obtained by this process as well as to fibers or foils with specific porosity features and/or mechanical properties. | 10-27-2011 |
| 20130023596 | POLYURETHANE COMPOSITE MATERIALS - Polymeric composite materials, particularly highly filled polyurethane composite materials are described herein. Such highly filled polyurethane composite materials may be formed by reaction and extrusion of one or more polyols, one or more di- or poly-isocyanates, and from about 45 to about 85 weight percent of inorganic filler such as fly ash. Certain polyols, including plant-based polyols can be used. Certain composite materials also contain chain extenders and/or crosslinkers. The polyurethane composite material may also contain fibers such as chopped or axial fibers which further provide good mechanical properties to the composite material. Shaped articles containing the polyurethane composite material have been found to have good mechanical properties, such that the shaped articles are suitable for building applications. | 01-24-2013 |
| 20130184365 | EXTRUSION OF POLYURETHANE COMPOSITE MATERIALS - Methods of extruding polyurethane composite materials are described. One method includes introducing at least one polyol and inorganic filler to a first conveying section of the extruder, transferring the at least one polyol and inorganic filler to a first mixing section of an extruder, mixing the at least one polyol and the inorganic filler in the first mixing section, transferring the mixed at least one polyol and inorganic filler to a second conveying section of the extruder, introducing a di- or poly-isocyanate to the second conveying section, transferring the mixed at least one polyol and inorganic filler and the di- or poly-isocyanate to a second mixing section, mixing the mixed at least one polyol and inorganic filler with the di- or poly-isocyanate in the second mixing section of the extruder to provide a composite mixture, and transferring the composite mixture to an output end of the extruder. Other related methods are also described. | 07-18-2013 |
| 20140155504 | EXTRUSION OF POLYURETHANE COMPOSITE MATERIALS - Methods of extruding polyurethane composite materials are described. One method includes introducing at least one polyol and inorganic filler to a first conveying section of the extruder, transferring the at least one polyol and inorganic filler to a first mixing section of an extruder, mixing the at least one polyol and the inorganic filler in the first mixing section, transferring the mixed at least one polyol and inorganic filler to a second conveying section of the extruder, introducing a di- or poly-isocyanate to the second conveying section, transferring the mixed at least one polyol and inorganic filler and the di- or poly-isocyanate to a second mixing section, mixing the mixed at least one polyol and inorganic filler with the di- or poly-isocyanate in the second mixing section of the extruder to provide a composite mixture, and transferring the composite mixture to an output end of the extruder. Other related methods are also described. | 06-05-2014 |
| 20140357744 | Process for the production of PET foams and PET foams obtained with said process - A process for the production of PET foams includes the extrusion of a mixture of PET, epoxy resin, catalyst consisting of imidazole, derivatives of imidazole or mixtures thereof plus a blowing agent, wherein the homopolymerization reaction of the epoxy phase is performed in the extruder, upstream of the introduction of the blowing agent. Compared to the methods of the known art, a process according to the invention offers the advantage of providing a stable PET foam, in which the structure of the polymer chains is kept unaltered. The system therefore has viscoelasticity characteristics which allow the PET/epoxy homopolymer to receive the expanding action of the blowing agent, as far as the innermost and deepest layers of foam also even if they have a significant thickness. | 12-04-2014 |
