| Patent application number | Description | Published |
|---|
| 20090163611 | POLYMER BLEND FOR THERMOPLASTIC CELLULAR MATERIALS - The present invention relates to high-temperature resistant, rigid, but flexible and low density foamed cellular material comprised of polyester blend consisting of from about 80 to about 98 weight percent of high viscosity polyethylene terephtalat (I.V.=1.0-1.9 dl/g) and from about 2 to about 20, preferably to about 5, weight percent of polycarbonate with average MW higher than 4000 g/mol. | 06-25-2009 |
| 20100292352 | PREPARATION AND APPLICATION OF CHAIN-EXTENDING CONCENTRATES FOR POLYESTER FOAMING PROCESS - The composition and the preparation of a chain-extending concentrate for production of foamed cellular materials of aromatic polyesters is disclosed in this invention. The chain-extending concentrate includes an ethylene-acrylate copolymer, a high-temperature thermoplastic and a multifunctional compound. The preparation process includes two steps: 1) Mixing and melt blending the multifunctional compound and the HT thermoplastic resin into the matrix of the ethylene-acrylate copolymer in an internal mixer and 2) extrusion of the mixture at a temperature below the melting point or reaction temperature of the multifunctional compound. | 11-18-2010 |
| 20100305224 | POLYESTER FOAM MATERIAL HAVING FLAME-RESISTANT BEHAVIOUR - An expanded cellular material from aromatic polyester resins obtained by a reactive extrusion foaming of polyester resins, wherein the polyester foam provided with flame retardancy achieves a total heat release (THR | 12-02-2010 |
| 20110130475 | PREPARATION AND APPLICATION OF CHAIN-EXTENDING CONCENTRATES FOR POLYESTER FOAMING PROCESS - The composition and the preparation of a chain-extending concentrate for production of foamed cellular materials of aromatic polyesters is disclosed in this invention. The chain-extending concentrate includes an ethylene-acrylate copolymer, a high-temperature thermoplastic and a multifunctional compound. The preparation process includes two steps: 1) Mixing and melt blending the multifunctional compound and the HT thermoplastic resin into the matrix of the ethylene-acrylate copolymer in an internal mixer and 2) extrusion of the mixture at a temperature below the melting point or reaction temperature of the multifunctional compound. | 06-02-2011 |
| 20110171446 | METHOD FOR FIRE PROTECTION AND MODIFICATION OF PROPERTIES OF EXPANDED POLYESTERS - The present invention relates to an easy-to-apply, but versatile method for modifying the physical and chemical resistance properties of expanded polyester products, such as fire retardancy and hydrolysis resistance, by melt-modification of the surface layer(s) of said foams and sponges, the manufacturing of such products and the use of such products. | 07-14-2011 |
| 20110171456 | INSULATION MATERIAL PROVIDING STRUCTURAL INTEGRITY AND BUILDING ELEMENTS AND COMPOSITES MADE THEREOF - The present invention relates to an insulation material for thermal and sound insulation with high mechanical strength, thus providing structural integrity from its own, and its composites with other building materials, such as concrete, for providing pre-insulated building elements, the manufacturing of such material and its composites and the use thereof. | 07-14-2011 |
| 20110172319 | HIGH-CONCENTRATE MASTERBATCHES COMPRISED OF MULTIFUNCTIONAL COMPOUNDS FOR POLYESTER EXPANDING PROCESS - The composition and the preparation of multifunctional high-concentrate masterbatches for production of expanded materials of aromatic polyesters are disclosed in this invention. The masterbatch includes a thermoplastic wax having a vicat softening temperature not higher than 100° C. and a high-percentage of a multifunctional compound, wherein the preparation involves a) a low temperature process with a masterbatch temperature lower than 100° C. before cooling and b) cooling without contact of the mixture with water during the whole process. The high-concentrate masterbatch can be applied in production of expanded materials of polyester. | 07-14-2011 |
| 20110266487 | CELLULAR POLYESTER MADE OF POST-CONSUMER FLAKES AND THE USE OF PRODUCTS MADE THEREOF - Manufacturing of polyester based expanded materials made mostly of pre-cleaned and compounded post-consumer polyester by increasing the intrinsic viscosity (IV) during an extrusion process is described. By careful selection of processing conditions and parameters, it is possible to obtain low density polyester foam material with good cellular structure and under stable processing conditions. | 11-03-2011 |
