Martha De La Rue
Martha De La Rue Beckedorf, Sao Paulo BR
Patent application number | Description | Published |
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20110256400 | PROCESS FOR THE PREPARATION OF POLYMER YARNS FROM ULTRA HIGH MOLECULAR WEIGHT HOMOPOLYMERS OR COPOLYMERS, POLYMER YARNS, MOLDED POLYMER PARTS AND THE USE OF POLYMER YARNS - Polymer yarns prepared from ultra high molecular weight homopolymers or copolymers which includes the steps of preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent, extruding the suspension with the formation of a gel, spinning the gel to obtain non-stretched filaments or yarns, cooling the non-stretched filaments or yarns, feeding the non-stretched filaments or yarns, to an extractor together with the feed of an organic extraction solvent, extracting the non-polar long chain solvent impregnated in the yarns, drying the non-stretched filament bundles or yarns, and stretching said dry yarns at a temperature in excess of 80° C. | 10-20-2011 |
Martha De La Rue Beckerdorf, Sao Paulo BR
Patent application number | Description | Published |
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20080290549 | Process for the preparation of polymer yarns from ultra high Molecular weight homopolymers or copolymers, polymer yarns,molded polymer parts, and the use of polymer yarns - A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps: | 11-27-2008 |
Martha De La Rue Beckerdorf, Vila Jones - Americana - Sao Paulo BR
Patent application number | Description | Published |
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20080290550 | Process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, polymer yarns, molded polymer parts, and the use of polymer yarns - A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps: | 11-27-2008 |