Patent application number | Description | Published |
20100215920 | COMPOSITE POLYAMIDE SHAPED ARTICLES - High fluidity polyamides are used for the impregnation of reinforcing cloth materials, namely, industrial fabrics, which impregnated cloths are converted into composite shaped articles. | 08-26-2010 |
20110210050 | FORMULATION OF NOVOLAK RESINS FOR ENHANCING THE ACID RESISTANCE OF POLYAMIDE COMPOSITIONS - Novolak resins are incorporated for enhancing the acid resistance of polyamide compositions. Polyamide compositions containing such novolak resins are useful for producing various plastic shaped articles, such as calibrated particles or injection-molded parts, and are particularly useful for the recovery of sludge, liquids, and gases present in underground reservoirs, especially in the field of hydrocarbon extraction such as crude oil or natural gas. | 09-01-2011 |
20110241249 | COMPOSITE POLYAMIDE ARTICLE - Uses of low molecular mass, non-evolutive polyamide resins for making composite articles are described. Articles obtained from such resins having good mechanical properties, such as rigidity, breaking load, impact resistance, and fatigue behaviour in particular, even when the articles are manufactured according to cycles shorter than those usually used, and without any processing before or after the manufacture of the composite articles, are also described. | 10-06-2011 |
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 |
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 |
20130303666 | ADDITIVE FOR A BITUMEN AND BITUMINOUS PRODUCT - An additive for a bitumen or polymer modified bitumen product, which is prepared by mixing together a sulphur-based product, a vulcanized rubber, for example, a waste vulcanized rubber, preferably a fatty acid, and a bitumen, is described. The use of this additive for preparing, with very limited gaseous emissions, elastomer-containing bituminous product is also described. Such use may be especially suitable for making bituminous coated material including, for example, asphalt concrete. | 11-14-2013 |