| 发明名称 |
Novel Method for Purifying Polyesters |
| 摘要 |
The invention relates to a method for purifying a polyester including impurities, said impurities including at least 0.1% by weight of a polyester or of residual monomer(s), including at least one step of: (ii) adding, to the polyester in a solvent, a functionalized material selected between a PAMAM dendrimer and a resin functionalized by one or more primary and/or secondary amine functions. Said method enables a low level of residual monomer(s) to be obtained while providing economically and environmentally advantageous reaction conditions. |
| 申请公布号 |
US2016002398(A1) |
申请公布日期 |
2016.01.07 |
| 申请号 |
US201414770357 |
申请日期 |
2014.02.25 |
| 申请人 |
IPSEN PHARMA S.A.S. |
发明人 |
BOURISSOU Didier;MARTIN-VACA Blanca;THILLAYE DU BOULLAY Olivier |
| 分类号 |
C08G63/90;C08G63/08;C08G63/06 |
主分类号 |
C08G63/90 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Process for purification of polyester containing impurities, these impurities containing at least 0.1% residual monomer(s) by weight of polyester, comprising at least the step of:
(ii) adding to the polyester in a solvent a functionalised material chosen from a PAMAM dendrimer and a resin functionalised by a primary and/or secondary amine function or functions |
| 地址 |
Boulogne Billancourt FR |
