Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1987-08-12
1990-07-10
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
528 26, 556440, 556467, 556469, C08G 7708
Patent
active
049407660
ABSTRACT:
Organopolysiloxane oils comprising acrylate and/or methacrylate functional groups, well adapted as additives for silicone elastomers, or for UV-curable silicone coating compositions, are prepared by transesterifying an organopolysiloxane including at least one (HOY)R.sub.2 SiO.sub.0.5 or (HOY)RSiO.sub.2/2 recurring unit, with a lower alkyl (meth)acrylate having the formula CH.sub.2 .dbd.CR'OCOR", in the presence of a catalytically effective amount of a tin compound.
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"Organotin Compounds as Transesterification Catalyst" Journal of Organometallic Chemistry, 173 (1979) C7-C8, Poller et al.
Canivenc Edith
Gay Michel
Bleutge John C.
Dean Jr. Ralph H.
Rhone-Poulenc Chimie
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