Patent application number | Description | Published |
20110245450 | MODIFIED POLYAMIDE, METHOD FOR PREPARING SAME, AND ARTICLE OBTAINED FROM SAID POLYAMIDE - A polyamide modified by a compound including at least one hydroxyl group, as well as to a method for preparing such a polyamide, and articles obtained from such a polyamide are described. A polyamide modified by a compound comprising at least one aromatic hydroxyl group and chemically bonded to the polymer chain, obtained by the polymerisation of polyamide monomers with at least one difunctional hydroxyaromatic compound in which both functions can react with an amino function is also described. | 10-06-2011 |
20110251341 | REINFORCED POLYAMIDE COMPOSITION - A polyamide modified by a compound including at least one hydroxyl group, as well as a method for preparing said polyamide and articles obtained from the modified polyamide are described. A polyamide composition including reinforcing fillers, and a modified polyamide obtained by polymerization from, in particular, a monofunctional hydroxyaromatic acid or amino acid compound in the presence of diacid, diamine and/or amino acid or lactam compounds are also described. | 10-13-2011 |
20120172521 | MODIFIED POLYAMIDE COMPOSITION - A sulfonated aliphatic or aromatic compound for the production of a modified polyamide that can significantly increase the glass transition temperature of the polyamide is described. A polyamide composition including at least: one polyamide modified by a sulfonated compound, the compound being chemically bonded to the polymer chain of the polyamide; and reinforcing or filling agents is also described. The composition can be a composition to be molded, for example, in the form of granules or powder, to be used in the production of articles using an injection molding method. | 07-05-2012 |
20120172538 | MODIFIED POLYAMIDE, PREPARATION METHOD THEREOF AND ARTICLE OBTAINED FROM SAID POLYAMIDE - A polyamide modified by a compound including a sulfonate group, as well as a method for preparing the polyamide and to articles obtained from said modified polyamide are described. A modified polyamide obtained from a mono-functional aromatic sulfonate compound is also described. | 07-05-2012 |
20120177922 | POLYAMIDE COMPOSITION - The use of a polyamide including hydroxyaromatic units in order to increase the acid resistance of a polyamide composition is described. A polyamide composition comprising a polyamide that includes hydroxyaromatic units and use thereof for the manufacture of various plastic articles such as, for example, calibrated particles or injection-molded parts is also described. Such a composition is especially useful in the field of the recovery of slurries, liquids and gases present in underground reservoirs, and in particular in the field of the extraction of hydrocarbons, such as crude oil or natural gas. | 07-12-2012 |
20120238164 | COMPOSITE POLYAMIDE ARTICLE - The use of polyamide modified by hydroxyaromatic compounds employed in the impregnation of reinforcing materials taking the form of a cloth of industrial fabrics for the manufacture of composite materials is described. The described use relates to composite materials and of their manufacturing processes. Also described, is a process for the manufacture of a composite article including at least: a) a stage of impregnation of a reinforcing cloth with a polyamide composition in the molten state, where the polyamide includes hydroxyaromatic units chemically bonded to the polyamide chain; and b) a stage of cooling and subsequently recovering the composite article. | 09-20-2012 |
20120289652 | SUPRAMOLECULAR POLYMERS AND COMPOSITIONS CONTAINING SAID POLYMERS - Supramolecular polymers having repeat units connected by hydrogen bonds, where the repeat units are monomers, macromers, oligomers or polymers where at least one on the monomers contains at least one 2,5-diketopiperazine group are described. Composition prepared from these supramolecular polymers and articles produced from these compositions are also described. | 11-15-2012 |
20120322326 | COMPOSITE POLYAMIDE ARTICLE - The use of polyamide of high melt flow employed in the impregnation of reinforcing materials taking the form of a cloth of industrial fabrics for the manufacture of composite materials is described. The described use relates to composite materials and their manufacturing processes. | 12-20-2012 |
20130001822 | COMPOSITE POLYESTER ARTICLE - A method for manufacturing a composite article is described that includes a step of impregnating a reinforcing fabric with a semi-aromatic polyester composition in the molten state, having a melt viscosity η of 20 Pa·s to 200 Pa·s. The reinforcing fabric can be maintained at a temperature of plus or minus 50° C. relative to the melting temperature of the polyester. | 01-03-2013 |
20130115836 | COMPOSITE POLYAMIDE ARTICLE - The use of a polyamide modified by hydroxyl aromatic compounds used to impregnate reinforcement materials assuming the form of industrial fabric cloth for manufacturing composite materials is described. Also described, is a composite material produced and a method by which the composite material is produced. Further, the method by which the composite material is produced can include: | 05-09-2013 |
20130144001 | THERMOPLASTIC COMPOSITION BASED ON POLYAMIDE, POLYKETONE AND NOVOLAC RESIN - A thermoplastic composition based on polyamide and polyketone is described. The thermoplastic composition can have an excellent mechanical strength and dimensional stability. Further, the composition can include a novolac resin and a reinforcing or a bulking filler. The composition can be molded, for example in the form of granules or powder, which is used for manufacturing articles via an injection-molding process. | 06-06-2013 |