Title:
POLYURETHENE RESIN FORMING COMPOSITION FOR USE IN SEALING MEMBRANE MODULE
Document Type and Number:
WIPO Patent Application WO/2013/146263
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a polyurethane resin forming composition which is for use in sealing a membrane module and which exhibits a low viscosity and excellent curability and can minimize the odor and peculiar flavor of a treated liquid. This polyurethane resin forming composition for use in sealing a membrane module comprises (A) a polyol component which contains (a) a polyoxyalkylene polyol and/or (b) an ethylene oxide adduct thereof and (B) an organic polyisocyanate component, and is characterized in that: the component (a) bears hydroxypropyl groups at the molecule terminals; the primary hydroxyl content of the groups is 40% or more; the total unsaturation of the components (a) and (b) is 0.010meq/g or less; and the contents of low-boiling by-products (t) in the components (a) and (b) are 0.020wt% or lower relative to the weights of the components (a) and (b) respectively, said low-boiling by-products (t) being by-products which exhibit boiling points of 150°C or lower at normal pressure.
Inventors:
SHIMADA TETSUYA (JP)
SUMITOMO YUKO (JP)
IMAI MASATO (JP)
SUMITOMO YUKO (JP)
IMAI MASATO (JP)
Application Number:
PCT/JP2013/056989
Publication Date:
October 03, 2013
Filing Date:
March 13, 2013
Export Citation:
Assignee:
SANYO CHEMICAL IND LTD (JP)
International Classes:
B01D63/00; A61M1/18; C08G18/48; C09K3/10
Domestic Patent References:
| WO2008007712A1 | 2008-01-17 | |||
| WO2011132424A1 | 2011-10-27 |
Foreign References:
| JP2002293869A | 2002-10-09 | |||
| JP2011120965A | 2011-06-23 |
Other References:
YOSHIO KANO ET AL.: "Jinko Jinzoyo Urethane-kei Potting-zai", SAN'YO KASEI NEWS, no. 446, 2008, pages 1 - 4, Retrieved from the Internet [retrieved on 20130612]
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
Patent business corporation Yasutomi international patent firm (JP)
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