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Title:
URETHANE COMPOSITION AND POLISHING MATERIAL
Document Type and Number:
Japanese Patent JP2015059199
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an urethane composition for providing a molded product excellent in tensile modulus and hot water resistance.SOLUTION: There is provided an urethane composition which comprises: an urethane prepolymer (1) having an isocyanate group which is obtained by reacting a polyol (A) comprising a diol (a-1) having a number average molecular weight of 800 to 5000, a polyol (a-2) having an average hydroxyl group number of more than 2 and a chain extender (a-3) having a hydroxyl group; and a curing agent (2), wherein the total average hydroxyl group number of the diol (a-1) and the polyol (a-2) preferably is more than 2 and less than 5 and the polyol (a-2) preferably has a number average molecular weight of 800 to 4000.

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Inventors:
SUGAWARA MANABU
Application Number:
JP2013195476A
Publication Date:
March 30, 2015
Filing Date:
September 20, 2013
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS
International Classes:
C08G18/66; B24B37/24; C08J5/14; H01L21/304
Domestic Patent References:
JPS5951943A1984-03-26
JP2013139559A2013-07-18
JPH03174429A1991-07-29
JP2007119749A2007-05-17
JPS62502048A1987-08-13
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Foreign References:
WO2011043420A12011-04-14
WO2011001755A12011-01-06
WO2013058183A12013-04-25
US20080242755A12008-10-02
Attorney, Agent or Firm:
Michihiro Kono



 
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