发明名称 |
METHOD FOR PREPARING GLYCOLIDE POLYESTER BY RING OPENING POLYMERIZATION |
摘要 |
The present invention relates to a method for preparation a glycolide polyester by ring opening polymerization characterized in that glycolide monomer with optional co-monomer(s) of cyclic ester(s) is/are subjected to ring opening polymerization in the presence of a dispersion stabilizer and a catalyst, said catalyst being selected for precipitating glycolide homopolymer or copolymer from solvent, said solvent being selected so that the glycolide monomer and the optional co-monomer(s), the dispersion stabilizer and the catalyst are soluble therein but said glycolide homopolymer or copolymer is non-soluble. The present invention further relates to an in situ ring opening polymerizing process product, and to use of said glycolide polyester, and to further processing of said glycolide polyester. |
申请公布号 |
US2014309366(A1) |
申请公布日期 |
2014.10.16 |
申请号 |
US201214123065 |
申请日期 |
2012.05.23 |
申请人 |
SHAN Jun;HÄRKÖNEN Mika;ROPPONEN Jarmo;HARLIN Ali;HEIKKINEN Harri;RÄMÖ Virpi;GÄDDA Thomas;NURMI Leena;WILLBERG-KEYRILÄINEN Pia |
发明人 |
SHAN Jun;HÄRKÖNEN Mika;ROPPONEN Jarmo;HARLIN Ali;HEIKKINEN Harri;RÄMÖ Virpi;GÄDDA Thomas;NURMI Leena;WILLBERG-KEYRILÄINEN Pia |
分类号 |
C08G63/81;C08J3/20;C08G63/87 |
主分类号 |
C08G63/81 |
代理机构 |
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代理人 |
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主权项 |
1. A method for preparation a glycolide polyester by ring opening polymerization wherein glycolide monomer with optional co-monomer(s) of cyclic ester(s) is/are subjected to ring opening polymerization in the presence of a dispersion stabilizer and a catalyst, said catalyst being selected for precipitating glycolide homopolymer or co-polymer from solvent, said solvent being selected so that said glycolide monomer and said optional co-monomer(s), said dispersion stabilizer and said catalyst are soluble therein but resulting glycolide homopolymer or co-polymer is non-soluble. |
地址 |
Helsinki FI |