Title:
METHOD FOR PRODUCING ALLOPHANATE-MODIFIED POLYISOCYANATE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2006/075636
Kind Code:
A1
Abstract:
Disclosed is a method for relatively easily producing an allophanate-modified polyisocyanate composition without using a promoter, which allophanate-modified polyisocyanate composition is practically colorless and substantially contains no urethane group, urethodione group or isocyanurate group. Specifically disclosed is a method for producing an allophanate-modified polyisocyanate composition from an alcoholic hydroxyl group-containing compound (A) and an organic diisocyanate (B) by using an allophanation catalyst (C). This method is characterized in that the allophanation catalyst (C) is a zirconium tetracarboxylate having 6 or more carbon atoms, and a catalyst poison (D) is used for stopping the allophanation reaction.
Inventors:
KATAOKA YOSHIZUMI (JP)
SUZUKI KOICHI (JP)
IKEMOTO MITSUSHIGE (JP)
SUZUKI KOICHI (JP)
IKEMOTO MITSUSHIGE (JP)
Application Number:
PCT/JP2006/300245
Publication Date:
July 20, 2006
Filing Date:
January 12, 2006
Export Citation:
Assignee:
NIPPON POLYURETHANE KOGYO KK (JP)
KATAOKA YOSHIZUMI (JP)
SUZUKI KOICHI (JP)
IKEMOTO MITSUSHIGE (JP)
KATAOKA YOSHIZUMI (JP)
SUZUKI KOICHI (JP)
IKEMOTO MITSUSHIGE (JP)
International Classes:
C08G18/22; C08G18/09
Domestic Patent References:
| WO2003027163A1 | 2003-04-03 | |||
| WO2002032979A1 | 2002-04-25 |
Foreign References:
| JP2002249535A | 2002-09-06 | |||
| JP2003171361A | 2003-06-20 | |||
| JP2003073447A | 2003-03-12 | |||
| JP2004195385A | 2004-07-15 | |||
| JP2003171435A | 2003-06-20 |
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