Patent ID: 11860537
Assignee: MERCK PATENT GMBH
Field: Optics (Instruments)
Classification: CPC G  C | IPC C  G

Claim 4:
5. The composition according to claim 1, wherein said additive (III) is represented by one selected from the group consisting of the following formulas (III-i) to (III-iv):, in which
Z is oxygen or sulfur;
each R1 is independently silyl, alkylsilyl, alkylsilylalkyl or silylalkyl group,
provided that
in said alkyl group,
one or more methylene is substituted with oxy or carbonyl, or unsubstituted,
one or more hydrogen is substituted with alkoxy, or unsubstituted, and
one or more carbon is substituted with a silicon, or unsubstituted;
each RR is independently hydrogen or an alkyl group of C1 to 4, provided that two Rbs in (III-ii) may form a cyclic structure; and
n is an integer of 1 to 3.