Title:
URETHANE COMPOSITION AND POLISHING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/021317
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a urethane composition with excellent heat resistance and with which very hard moldings can be obtained. The present invention provides: a urethane composition comprising a base resin (i), which contains a urethane prepolymer with isocyanate groups obtained by reacting a polyol (A) with a polyisocyanate (B), and a curing agent (ii), the urethane composition being characterized in that the polyol (A) comprises a polyether polyol (a1) obtained by polymerizing an aromatic compound (a1-1) having two or more active hydrogen atom-containing groups and an alkylene oxide (a1-2); and a polishing material characterized in being obtained by thermosetting of said urethane composition and then slicing.
Inventors:
TAKACHI MANABU (JP)
GOTOH NAOTAKA (JP)
GOTOH NAOTAKA (JP)
Application Number:
PCT/JP2015/067994
Publication Date:
February 11, 2016
Filing Date:
June 23, 2015
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
B24B37/24; C08G18/65; C08G18/10; H01L21/304
Foreign References:
| JP2000007986A | 2000-01-11 | |||
| JP2000080143A | 2000-03-21 | |||
| JPS5373294A | 1978-06-29 | |||
| JPS5749611A | 1982-03-23 | |||
| JPS5721463A | 1982-02-04 | |||
| JPH11106732A | 1999-04-20 | |||
| JPH04120117A | 1992-04-21 | |||
| JPS58221951A | 1983-12-23 |
Attorney, Agent or Firm:
KONO MICHIHIRO (JP)
Michihiro Kono (JP)
Michihiro Kono (JP)
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