Patent application number | Description | Published |
20110184143 | Catalytic Process for Polymerising Cyclic Carbonates Issued from Renewable Resources - This invention relates to the polymerisation of five-, six- or seven-membered cyclic carbonates by ring-opening polymerisation in the presence of a system comprising a metal salt such as triflate, triflimidate, acetylacetonate or carboxylate and an alcohol. | 07-28-2011 |
20110224373 | PROCESS TO MAKE A DIBLOCK COPOLYMER HAVING A MONOVINYLAROMATIC POLYMER BLOCK - The present invention is a process to make a composition comprising a block copolymer A-B and optionally a monovinylaromatic polymer, said process comprising:
| 09-15-2011 |
20120101233 | CATALYTIC SYSTEMS FOR IMMORTAL RING-OPENING POLYMERISATION OF CYCLIC ESTERS AND CYCLIC CARBONATES - The present invention discloses new catalyst systems based on complexes of divalent metals supported by chelating phenoxy ligands for immortal ring-opening polymerisation of cyclic esters and cyclic carbonates. | 04-26-2012 |
20120136124 | PROCESS TO PREPARE DI- AND MULTIBLOCK COPOLYMERS - The present invention discloses a process for preparing di-, tri, or multi-block polyester/polycarbonate (co)polymers by ring-opening polymerisation in the presence of a non-toxic catalyst system in combination with either a linear monohydroxy HO—PC—OR, or a linear telechelic dihydroxy HO—PC—OH, or a star polyhydroxy R—(PC—OH)n end-capped polyester/polycarbonate. | 05-31-2012 |
20120172574 | Ring Opening Polymerisation of Cyclic Carbonates With Organic Catalyst Systems - The present invention discloses a method for polymerising cyclic carbonates by immortal ring-opening polymerisation in the presence of organocatalysts and alcohol, said alcohol acting as initiator and as transfer agent. | 07-05-2012 |
20130144027 | ISOCYANATE-FREE METHOD FOR PREPARING POLY(CARBONATE-URETHANE) OR POLY(ESTER-URETHANE) - The present invention discloses a method for preparing polycarbonate-urethane) or poly(ester-urethane) without isocyanate | 06-06-2013 |
20130274422 | POLYCARBONATES AS NUCLEATING AGENTS FOR POLYLACTIDES - The present invention discloses the use of polycarbonate to increase the crystallisation rate of polylactides while maintaining its the mechanical properties. | 10-17-2013 |
20140148558 | ONE-STEP, ONE-POT PROCESS FOR PREPARING MULTIBLOCK AND GRADIENT COPOLYMER - The present invention relates to the field of tailored di-, tri- and multi-block as well as gradient polyesters/polycarbonates copolymers prepared by introducing monomers simultaneously in the reaction medium in the presence of an organometallic, metal salt or organic catalyst. | 05-29-2014 |
20140323683 | PROCESS FOR THE PREPARATION OF DEFINED FUNCTIONAL LACTIC ACID OLIGOMERS - A process for manufacturing defined functional lactic acid oligomers can include contacting lactide with at least one compound that is a transfer agent. Oligomers can be prepared according to the process. | 10-30-2014 |