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1. (WO2013120974) POLYSILOXANE BASED BLOCK COPOLYMERS

Pub. No.:    WO/2013/120974    International Application No.:    PCT/EP2013/053027
Publication Date: Fri Aug 23 01:59:59 CEST 2013 International Filing Date: Fri Feb 15 00:59:59 CET 2013
IPC: C08F 299/00
C08F 230/08
C08F 299/08
C08G 77/46
C08L 43/04
G02B 1/04
Applicants: DSM IP ASSETS B.V.
Inventors: TIAN, Yuan
CURTIN, Scott
IYER, Ananth
WANG, Anfeng
OUYANG, Meng
Title: POLYSILOXANE BASED BLOCK COPOLYMERS
Abstract:
The invention is directed to polysiloxane based block copolymers that comprise siloxane untis and units derived from diol compounds comprising at least one pendant oligomeric or polymeric group. The block copolymers according to the invention surprisingly allows any glassware used during its preparation to be washed cleaned with water. The block copolymer can be used in ophthalmic lenses, and may be useful in providing contact lens formulations which are water processable.