Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2011-01-11
2011-01-11
Peng, Kuo-Liang (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C528S043000
Reexamination Certificate
active
07868118
ABSTRACT:
The present invention discloses to a high refractive index polysiloxane (co)polymer comprising refractive index modifying groups chemically bonded in clustered configuration to the polysiloxane backbone. The invention also discloses methods for the preparation of such high refractive index polysiloxane (co)polymers A polysiloxane according to the invention is very suitable for use as a material for the production of intra-ocular lenses.
REFERENCES:
patent: 5233007 (1993-08-01), Yang
Flipsen Theodorus Adrianus Cornelius
Smit Hendrik
van der Flier Eelco Christoffer Brian
Verbruggen Miriam Adrienne Lambertina
Lucas & Mercanti LLP
Ophtec B.V.
Peng Kuo-Liang
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