Patent application number | Description | Published |
20100068487 | Formulations for Cellular, Foamed-Polymer Products Based on Polyvinyl Chloride,Improved Cellular, Foamed-Polymer Products Based on Polyvinyl Chloride and a Process for Producing Said Improved Cellular Foamed-Polymer Products - Formulation for cellular, foamed-polymer product based on polyvinyl chloride, comprising: a polyvinyl chloride homopolymer having a K-value of from 60 to 85 and a pH value of the aqueous extract ranging of from 8 to 12; at least one isocyanate selected from isomers and homologues of diphenylmethane-4,4′-diisocyanate and modified diphenylmethane-4,4-diisocyanate s and mixtures thereof; at least one anhydride selected from the group of succinic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methyl-tetrahydrophthalic anhydride, 4-methyl-hexahydrophthalic anhydride, cyclohexane-1,2-dicarboxylic anhydride, methyl-endomethylene tetrahydrophthalic anhydride, dodecenyl succinic anhydride, trimellitic anhydride and mixtures thereof; at least a surfactant; at least a foaming agent. | 03-18-2010 |
20130150474 | Enhanced process for the production of expanded PVC and plastic materials based on expanded PVC obtained therewith - A process for the production of expanded PVC of the type includes heating a mass of polymeric mixture inside a closed mold; controlling the expansion of the mass in an environment having a constant volume defined by the closed mold, control being performed by the presence, in the mass of polymeric mixture, of microparticles of a compressible material, suitable for being contracted, under the action of the pressure generated by the formation and expansion of microcells of expanding gas in the same mass, from an initial form having a larger volume, to a form having a smaller volume; and expanding the microparticles, from their configuration to the initial configuration, the density of the expanded material thus obtained being determined by the contemporary presence of both microcells of expanding gas and the microparticles in their configuration having a larger volume. | 06-13-2013 |
20130267620 | Process for the production of expanded plastic materials, in particular PVC-based polymeric foams and a formulation of a polymeric blend for effecting said process - A perfected process for the production of expanded plastic materials, comprising a hot moulding phase of a starting polymeric blend inside a mould, wherein the heating of said blend is effected by making the same a heat source, by triggering an exothermic reaction in its interior. With respect to the known art in the field, the process of the invention allows an improvement in the heating of the polymeric mass inside the mould, reducing the times necessary for effecting it and homogenizing the thermal values inside this mass. | 10-10-2013 |
Patent application number | Description | Published |
20080293917 | Peptide Purification By Means Of Metal Ion Affinity Chromatography - A polymer substrate functionalized with a functionality comprising at least one cyclic, metal ion coordinating ligand group, the cyclic ligand group comprising at least 3 metal ion coordinating donor atoms independently selected from the group consisting of N, O and S. | 11-27-2008 |
20090143529 | Peptide purification by means of hard metal ion affinity chromatography - A polymer substrate functionalized with a functionality comprising at least one cyclic, metal ion coordinating ligand group which comprises at least 3 nitrogen donor atoms in the ring of the cyclic group, at least one of the nitrogen atoms having an optionally substituted carboxy(lower alkyl) or optionally substituted phosphono(lower alkyl) group covalently attached thereto, is well suited for use in conjunction with “hard” metal ions of low toxicity (such as Ca | 06-04-2009 |
20100143811 | Water Oxidation Catalyst - A catalyst for the photo-electrolysis of water molecules, the catalyst including catalytic groups comprising tetra-manganese-oxo clusters. A plurality of the catalytic groups are supported on a conductive support substrate capable of incorporating water molecules. At least some of the catalytic groups, supported by the support substrate, are able to catalytically interact with water molecules incorporated into the support substrate. The catalyst can be used as part of photo-electrochemical cell for the generation of electrical energy. | 06-10-2010 |