Patent application number | Description | Published |
20100016538 | POLYLACTIDE-URETHANE COPOLYMERS - A polylactide-urethane copolymer obtainable by a process, which comprises the step of contacting:
| 01-21-2010 |
20100112652 | Method for Producing Lactic Acid By The Fermentation of a Self-Sufficient Medium Containing Green Cane Juice - The invention relates to a process for producing lactic acid by fermentation of a sugarcane extract by means of microorganisms belonging to the | 05-06-2010 |
20100113734 | PROCESS FOR PRODUCING POLYLACTIDE-URETHANE COPOLYMERS - A process for producing polylactide-urethane copolymers, which comprises the step of contacting a polylactide having terminal hydroxyl groups, produced by contacting at least one lactide monomer with a diol or diamine, with a diisocyanate compound optionally in the presence of a second diol or diamine in the presence of a catalytic system under polymerisation conditions characterised in that the polylactide and the polylactide-urethane copolymers are produced by reactive extrusion. | 05-06-2010 |
20110155557 | Method for Obtaining Lactide - Processes for producing lactide from lactic acid oligomers are described herein. The processes generally include heating a lactic acid oligomer in the presence of a catalyst at a temperature of between 150° C. and 300° C. under a pressure of less than 0.01 MPa to form a lactide; distilling the lactide; and condensing and recovering the lactide, wherein the catalyst is a metal salt of the phosphite anion PO | 06-30-2011 |
20110190512 | Method of Obtaining Lactide - The present invention relates to a method of obtaining lactide by means of a solvent of the ether class from a mixture that is in liquid form comprising lactide, meso-lactide, and other impurities. | 08-04-2011 |
20110319588 | ISOTACTIC POLYLACTIC ACID AND METHOD FOR PRODUCING SAME - Method of polymerization for producing polylactic acid of configuration L or D, with number-average molecular weight between 60 000 and 200 000 having an insertion defect rate between 0 and 0.5 wt. % of polylactic acid and a racemization defect rate between 0 and 2.5 wt. % of polylactic acid, characterized in that the method is a bulk process comprising contacting, at a temperature between 170 and 200° C. and for a reaction time between 5 and 75 minutes, the corresponding lactide of stereochemical configuration L-L or D-D having an optical purity of L or D of at least 99.5 wt. % with at least one catalyst in the presence of an initiator to form poly-L-lactic acid or poly-D-lactic acid. | 12-29-2011 |
20120029228 | CHEMICAL RECYCLING OF PLA BY ALCOHOLYSIS - A process for recycling a polymer blend necessarily containing PLA, comprising grinding, compacting, dissolving in a solvent of PLA, removing the undissolved contamining polymers, alcoholysis depolymerisation reaction and purification steps. | 02-02-2012 |
20120142958 | CHEMICAL RECYCLING OF PLA BY HYDROLYSIS - A process for recycling a polymer blend necessarily containing PLA, comprising grinding, compacting, dissolving in a solvent of PLA, removing the undissolved contamining polymers, alcoholysis depolymerisation reaction and purification steps. | 06-07-2012 |