Hydrophilic cyclodextrin-containing silicone gels

A solvent swollen hydrophilic silicone gel composition comprising:

• a crosslinked silicone elastomer containing at least one covalently bonded cyclodextrin moiety, prepared by hydrosilylative crosslinking of reactants (A), (B), and (C)
• (A) optionally, a cyclodextrin reactant comprising a cyclodextrin or cyclodextrin derivative which has been modified to contain an organic group containing aliphatic unsaturation or an organic group containing silicon-bonded hydrogen;
• (B) optionally, an organopolysiloxane having at least one aliphatically unsaturated group;
• wherein component (B) is not optional when component (A) is not present or where component (A) contains no aliphatic unsaturation;
• (C) an organopolysiloxane containing at least one silicon-bonded hydrogen atom, the hydrosilylative crosslinking being effected by hydrosilylating aliphatically unsaturated groups of (A), when present, and (B), by means of silicon-bonded hydrogen atoms of (A), when present, and (C), in the presence of a hydrosilylation catalyst (D), wherein at least one cyclodextrin moiety is present among reactants (A), (B), and (C),
• and wherein the hydrosilylative crosslinking is conducted in the presence of a swelling solvent, forming a swollen hydrophilic silicone gel or the hydrosilylative crosslinking is conducted without swelling solvent and a crosslinked elastomer formed in the hydrosilylative crosslinking is dispersed into a swelling solvent to form a swollen hydrophilic silicone gel.