PROCESS FOR THE PREPARATION OF A MERCAPTO-TERMINATED LIQUID POLYMER
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...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English French German |
Published |
04.01.2017
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | 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. |
---|---|
Bibliography: | Application Number: EP20150706018 |