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Patent Searching and Data


Title:
POLYSILOXANE BASED BLOCK COPOLYMERS
Document Type and Number:
WIPO Patent Application WO/2013/120974
Kind Code:
A3
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.

Inventors:
TIAN YUAN (NL)
CURTIN SCOTT (NL)
IYER ANANTH (NL)
WANG ANFENG (NL)
OUYANG MENG (NL)
Application Number:
PCT/EP2013/053027
Publication Date:
October 10, 2013
Filing Date:
February 14, 2013
Export Citation:
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Assignee:
DSM IP ASSETS BV (NL)
International Classes:
C08F230/08; C08F299/00; C08F299/08; C08G77/46; C08L43/04; G02B1/04
Domestic Patent References:
WO2012052527A12012-04-26
Foreign References:
US5451617A1995-09-19
Attorney, Agent or Firm:
HOOGENDAM, Gerrie Christine (AA Echt, NL)
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