Organopolysiloxanes containing both acryloxyalkyl groups and Si-

Details Organopolysiloxanes containing both acryloxyalkyl groups and Si- Organopolysiloxanes containing both acryloxyalkyl groups and Si-

1984-06-18

1986-07-01

Marquis, Melvyn I.

Coating processes

Electrical product produced

Welding electrode

427 44, 4272084, 428447, 428448, 428451, 428452, 528 26, 528 29, 528 31, 528 32, 556437, 556440, B05D 306

Patent

active

045979871

ABSTRACT:
Organopolysiloxanes having a viscosity of at least 100 mPa.s at 25.degree. C. and having both SiC-bonded acryloxyalkyl groups and Si-bonded hydrogen atoms in the same molecule are described herein. These are preferably prepared by adding an allyl alcohol to diorganopolysiloxanes containing an Si-bonded hydrogen atom in each of their terminal units, then esterifying the hydroxyl groups of the resultant reaction product with acrylic acid and subsequently equilibrating the resultant diorganopolysiloxanes containing an SiC-bonded acryloxypropyl group in each of their terminal units, with organo(poly)siloxanes containing an Si-bonded hydroxyl group in each of their terminal units, in which the organo(poly)siloxanes contain methylhydrogensiloxane units and optionally diorganosiloxane units of the formula

REFERENCES:
patent: 4011247 (1977-03-01), Sato et al.

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