| 发明名称 |
Process for the Preparation of a Mercapto-terminated Liquid Polymer |
| 摘要 |
Process for the preparation of a mercapto-terminated liquid polymer comprising the steps of: a) reacting (para)formaldehyde with a halo-alcohol to form a reaction mixture comprising bis(2-dihaloalkyl)formal and b) reacting the reaction mixture of step a) with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur, wherein the process is performed in the presence of a branching agent selected from the group consisting of di-aldehydes and their corresponding actetals and hemi-acetals. |
| 申请公布号 |
US2017051113(A1) |
申请公布日期 |
2017.02.23 |
| 申请号 |
US201515118604 |
申请日期 |
2015.02.23 |
| 申请人 |
AKZO NOBEL CHEMICALS INTERNATIONAL B.V. |
发明人 |
Menzel Manfred;Klobes Olaf;Burkhardt Volker |
| 分类号 |
C08G75/16 |
主分类号 |
C08G75/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Process for the preparation of a mercapto-terminated liquid polymer comprising the steps of:
a) reacting (para)formaldehyde with a halo-alcohol to form a reaction mixture comprising bis(2-dihaloalkyl)formal and b) reacting the reaction mixture of step a) with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur,
wherein the process is performed in the presence of a branching agent selected from the group consisting of di-aldehydes and their corresponding actetals and hemiacetals. |
| 地址 |
Arnhem NL |
