发明名称 |
Process for manufacturing multisequence star or network polycondensates by di- or multi-aldehyde coupling, and polycondensates obtained |
摘要 |
A novel process for coupling living polymers containing terminal (meth)acrylic units, which enables an increase in molecular weight and/or a defined multisequencing and/or a star structure with a defined number of branches, is disclosed. The disclosed process comprises the steps of: (i) anionic polymerization using an initiator system consisting of a functional initiator and a ligand to obtain a living polymer containing living terminal (meth)acrylics units; (ii) reacting it with an aldehyde compound of formula R-(CHO)r in which r>/=2; and (iii) recovering the final polycondensate by means known per se.
|
申请公布号 |
US5346956(A) |
申请公布日期 |
1994.09.13 |
申请号 |
US19930002818 |
申请日期 |
1993.01.11 |
申请人 |
ELF ATOCHEM S.A. |
发明人 |
GNANOU, YVES |
分类号 |
C08F8/28;C08F297/02;C08G2/38;(IPC1-7):C08L33/04;C08L61/00;C08K5/07 |
主分类号 |
C08F8/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|