摘要:
Particulate additives which may be added to thermoset or thermoplastic polymers while maintaining transparency comprise core/shell polysiloxane graft polymers having a silicone core, optionally an inner addition polymer core within the silicone core, and an addition polymer shell. The silicone core is derived from at least one monomer having conjugated electron pairs.
摘要:
The invention relates to a method for isolating polyorganosiloxanes from an aqueous dispersion, wherein the polyorganosiloxanes are separated from water in a dissolved form with the aid of an extraction agent.
摘要:
A composition comprising core-shell particles having an organopolysiloxane core and a crosslinked or non-crosslinked organopolymer shell and one or more reactive resins. In some variations, the composition has a crosslinked or non-crosslinked organopolymer core. Additional different siloxane-containing particles are optionally included.
摘要:
Organopolysiloxane particles containing hydrosilylation catalysts (H) and organopolysiloxane (O) and having a particle size of 0.01-10 &mgr;m have, at least in the outermost shell, no glass-transition temperature, softening point or melting point in the range 20° C.-260° C. These organopolysiloxane particles enable the preparation of one-component, addition-crosslinking, thermocurable silicone compositions having a long shelf life.