Organic silicon compounds, inorganic fillers treated therewith,

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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528 29, 524442, 524445, 524451, 524492, 524529, 524534, 524588, 525 72, 525 87, 525 88, 523203, 523205, C08K 906, C08K 334, C08G 7704

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060110880

ABSTRACT:
Novel organic silicon compounds of formula (1) are provided. ##STR1## R.sup.1 is a monovalent C.sub.1 -C.sub.4 hydrocarbon group, R.sup.2 is a divalent C.sub.2 -C.sub.3 hydrocarbon group, R.sup.3 is a monovalent C.sub.1 -C.sub.2 hydrocarbon group, m is an integer of 3-10, n is equal to 0, 1 or 2, p is equal to 0 or 1, and the sum of n+p is equal to 0, 1 or 2. Inorganic fillers are surface treated with the organic silicon compounds. Compositions comprising EPR and/or EPDM in admixture with the treated inorganic fillers are electrically insulating and have improved oil resistance and mechanical strength.

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