Polysiloxanes and their preparation

Details Polysiloxanes and their preparation Polysiloxanes and their preparation

2007-07-03

2007-07-03

Moore, Margaret G. (Department: 1712)

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

Synthetic resins

From silicon reactant having at least one...

C528S026000, C528S029000, C528S034000, C528S012000, C556S425000

Reexamination Certificate

active

11602559

ABSTRACT:
An amino-functional polysiloxane is prepared by reacting an aminosilane (A) which contains an aminoalkyl group and at least one alkoxy group bonded to Si with a carboxylic acid and a silanol-functional polysiloxane (B). The aminosilane (A) is partially converted into its carboxylate salt which acts as a catalyst for the siloxane condensation polymerization reaction between (A) and (B).

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