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Synthetic Resins Or Natural Rubbers -- Part Of The Class 520 Series > Synthetic Resins Or Natural Rubbers > Ion-exchange Polymer Or Process Of Preparing > Extruding A Solid Polymer Containing Material To Form A Cellular Product Extruding A Solid Polymer Containing Material To Form A Cellular ProductExtruding A Solid Polymer Containing Material To Form A Cellular Product patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/11/07 - 20070010591 - Process for the preparation of (meth)acrylate di-ammonium salts and their use as monomers for the synthesis of polymers wherein R1 represents hydrogen or methyl, each R2, independently, represents an alkyl comprising from 1 to 4 carbon atoms, each R3, independently, represents an alkyl or an aralkyl and each X−, independently, represents an anion; having a high purity and their use as monomers for the synthesis of polymers useful ... 10/26/06 - 20060241195 - Compositions based on expandable vinylaromatic polymers with an improved expandability Compositions of expandable vinylaromatic polymers which contain a polymer, of at least one vinylaromatic monomer, having an average molecular weight Mw ranging from 50,000 to 170,000, which comprise: a) 0-50% by weight of a copolymer obtained by polymerizing one or more vinylaromatic monomers and 0.1-15% by weight of an α-alkylstyrene; ... 09/21/06 - 20060211782 - Reduced-voc and non-voc blowing agents for making expanded and extruded thermoplastic foams A blowing agent blend for making thermoplastic polymer foams includes methyl formate. The blowing agent blend can further comprise at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s), water or ... 07/27/06 - 20060167123 - Method for the production of low-bulk density polystyrene foam particles A process for producing foam beads with low bulk density from thermoplastic polymers, encompassing the stages of a) addition of a blowing agent to a thermoplastic polymer melt, b) cooling and extrusion, through a die, of the polymer melt comprising blowing agent c) cutting of the polymer melt comprising-blowing agent ... 06/15/06 - 20060128821 - Preparation of polymeric foams using hydrofluoroether nucleating agents Use of high boiling hydrofluoroethers as nucleating agents in the production of a polymeric foam, in particular in the production of polyurethane foams and phenolic foams. Also, blowing agent compositions and foamable compositions comprising one or more high boiling hydrofluoroether nucleating agents and foams made using such blowing agent compositions ... 05/25/06 - 20060111458 - Thermoplastic and polymer foams and method of preparation thereof A foamed starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder in the presence of a blowing agent. The foams are biodegradable. ... 05/18/06 - 20060106122 - Extruded polystyrene resin foam board and process for preparing the same The present invention relates to a process for preparing an extruded polystyrene resin foam board having excellent flame retardancy and recyclability, which comprises extruding and foaming a foamable composition, the foamable composition containing a polystyrene resin, a blowing agent and a specific flame retardant including a phosphate ester and a ... 03/09/06 - 20060052465 - Thermoplastic foams made with methyl formate-based blowing agents A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent, preferably an environmentally friendly chemical species (e.g., non-VOC and/or non-HAP). The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a ... 03/09/06 - 20060052464 - Thermoplastic foams made with methyl formate-based blowing agents A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s), water or ... 03/02/06 - 20060047009 - Insulating thermoplastic foams made with methyl formate-based blowing agents A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s), water or ... 02/16/06 - 20060035988 - Injection molding of polymeric material Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling these parameters in an injection molding system. Another aspect involves an injection molding ... 11/17/05 - 20050256215 - Method and apparatus for microcellular polymer extrusion Continuous polymeric extrusion nucleation systems and methods useful for making polymeric microcellular foamed materials, including crystalline and semi-crystalline polymeric microcellular materials, are provided. Pressure drop rate is an important feature in some embodiments, and the invention provides systems for controlling these and other parameters. One aspect involves a multiple-pathway nucleator ... 10/06/05 - 20050222283 - Microcellular foam dielectric for use in transmission lines The present invention is directed to a novel foamed polymer material for use as a dielectric in electric transmission lines. The foam dielectric of the present invention is obtained from extrusion of a polymer alloy and a supercritical fluid, especially carbon dioxide. Specifically, the foam polymer dielectric is made by: ... 08/11/05 - 20050176836 - Manufacturing process for open celled microcellular foam The present invention relates to a method for making an open celled microcellular foam comprising providing at least one foamable polymer and a crosslinking agent in an extruder, injecting at least one blowing agent into said at least one foamable polymer and said crosslinking agent in said extruder, blending said ... 06/30/05 - 20050143479 - Polymer processing systems including screws Injection molding and blow molding systems that include screws having low L:D ratios are provided. The systems are capable of producing microcellular polymeric materials. In some cases, the systems may be formed by retrofitting conventional polymer processing systems. Retrofitting may involve changing (e.g., machining or replacing) existing components of the ... ### FreshPatents.com Support |