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Title:
POLYURETHANE RESIN EMULSION FOR WATER-BASED COATING
Document Type and Number:
Japanese Patent JP2010222554
Kind Code:
A
Abstract:

To provide a polyurethane resin emulsion; wherein when used for a water-based coating, a dried coating film of the water-based coating has equivalent impact resistance compared with one using a conventional polyurethane resin emulsion and has superior solvent resistance and water resistance to one using the conventional polyurethane resin emulsion.

The polyurethane resin emulsion for a water-based coating contains a polyurethane resin (U) and water, and satisfies following (1) and (2). (1) The polyurethane resin (U) includes a polymer polyol as a constituent unit, having an alicyclic hydrocarbon group and a number-average molecular weight of 400-5,000, and a content of the alicyclic hydrocarbon group is 5.0-40.0 wt.% based on a weight of the polyurethane resin (U). (2) A glass transition temperature of the polyurethane resin (U) is -20 to 80°C.


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Inventors:
ONODERA MAIKO
INAGI MOTOTAKA
MORI KOICHI
Application Number:
JP2009216701A
Publication Date:
October 07, 2010
Filing Date:
September 18, 2009
Export Citation:
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Assignee:
SANYO CHEMICAL IND LTD
International Classes:
C09D175/04; C09D5/02; C09D175/06; C09D175/08
Domestic Patent References:
JPS6343967A1988-02-25
JP2003238892A2003-08-27
JP2010195982A2010-09-09
JP2010254977A2010-11-11
JPH06248046A1994-09-06
JPH07138527A1995-05-30
JP2001139876A2001-05-22
JP2008518056A2008-05-29
JP2008111037A2008-05-15
Foreign References:
WO2007126107A12007-11-08



 
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