Process for preparing silicone polyethers

Details Process for preparing silicone polyethers Process for preparing silicone polyethers

2011-08-30

2011-08-30

Peng, Kuo-Liang (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C528S031000

Reexamination Certificate

active

08008407

ABSTRACT:
A process is disclosed for the preparing silicone polyethers by reacting; (A) a polyether having at least one terminally unsaturated aliphatic hydrocarbon group and an alkali metal content of less than 50 ppm, (B) an organohydrogensiloxane having an acid number of less than 0.005, via a hydrosilylation reaction. The process is particularly useful to prepare silicone polyethers of improved quality via a continuous process.

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