Title:
ポリマー組成物
Document Type and Number:
Japanese Patent JP2011518892
Kind Code:
A
Abstract:
A polyorganosiloxane polyoxyalkylene block copolymer having one or more polyorganosiloxane blocks and one or more polyoxyalkylene blocks linked to each other via divalent radicals which comprises at least two silicon-bonded alkoxy groups, preferably of the form PS (A PO)m (A PS)n, wherein PO is a polyoxyalkylene block, PS represents a polyorganosiloxane block, A is a divalent radical, m and n have independently a value of at least 1, comprising at least one alkoxy-substituted siloxane unit of the formula (R')q(OR)-SiO3-q/2 ', wherein R represents an alkyl group having 1 to 4 carbon atoms and each R' represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, or an alkoxy group of the formula -OR and q has a value of 0, 1 or 2, provided at least two silicon-bonded groups OR are present in the block copolymer. Also provided is a curable composition of the above which may comprise a condensation catalyst and a hydrophilic polymer network made from curing the composition in the presence of moisture, which exhibit interesting reversible hydrophilic properties.
Inventors:
Helen El Gaff
Ian A. McKinnon
Sarah O'Hare
Geraldine Durand
Ian A. McKinnon
Sarah O'Hare
Geraldine Durand
Application Number:
JP2010504747A
Publication Date:
June 30, 2011
Filing Date:
April 30, 2008
Export Citation:
Assignee:
DOW CORNING CORPORATION
International Classes:
C08G77/46
Domestic Patent References:
| JPS57158226A | 1982-09-30 | |||
| JP2001514282A | 2001-09-11 | |||
| JP2001294754A | 2001-10-23 | |||
| JP2004331738A | 2004-11-25 | |||
| JPS57158226A | 1982-09-30 | |||
| JP2001514282A | 2001-09-11 | |||
| JP2001294754A | 2001-10-23 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro