Patent ID: 11899365
Assignee: MERCK PATENT GMBH
Field: Optics (Instruments)
Classification: CPC G  C | IPC C  G

Claim 9:
10. The composition according to claim 1, wherein the number of the structures represented by the following formula (ic):, wherein
Y is a divalent or trivalent, linear, branched or cyclic, saturated or unsaturated aliphatic hydrocarbon group, or a divalent or trivalent aromatic hydrocarbon group,
in said aliphatic hydrocarbon group and said aromatic hydrocarbon group, one or more methylene are unsubstituted or substituted with oxy, imide or carbonyl, one or more hydrogens are unsubstituted or substituted with fluorine, hydroxy or alkoxy, and one or more carbons are unsubstituted or substituted with silicon,
z is 2 or 3, and
Y is neither —(CR′2)n— or, provided that
n is an integer of 1 to 3, and
each R′ is independently hydrogen, methyl or ethyl is 25 mol % or less based on the total number of all the repeating units contained in the whole of the polysiloxanes.