Method for stabilizing organopolysiloxanes

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524430, 524432, 524433, 525475, 528 23, 528485, 528488, 528489, 556401, C07F 708

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active

047014903

ABSTRACT:
A method for stablizing organopolysiloxanes containing phosphonitrilic chlorides and/or their reaction products against viscosity changes by reacting the phosphorus compounds present in the organopolysiloxanes with at least one oxide, hydroxide or carbonate of a divalent or trivalent metal, and thereafter separating the solid from the organopolysiloxanes.

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patent: 4564693 (1986-01-01), Riederer

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