Process for stabilizing organopolysiloxanes

Details Process for stabilizing organopolysiloxanes Process for stabilizing organopolysiloxanes

1986-08-01

1987-12-01

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 18, 528 33, 528 37, C08G 7706

Patent

active

047105585

ABSTRACT:
A process for stabilizing organopolysiloxanes containing alkaline compounds such as alkali metal hydroxides, alkali metal silanolates, alkali metal siloxanolates, or a mixture of at least two such compounds, which comprises neutralizing the alkaline compound present in the organopolysiloxanes with a neutralizing agent selected from a compound containing carbon, hydrogen, and oxygen atoms, and optionally at least one halogen atom, in which the compound has 2, 3 or 4 hydrocarbon groups bonded to the same carbon atom via oxygen, or an acylacetic acid ester. The resultant organopolysiloxanes are stabilized against viscosity changes caused by the alkaline compounds.

REFERENCES:
patent: 3779987 (1973-12-01), Razzano

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