Title:
DIPHENYLMETHANE ISOCYANATE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2007/116761
Kind Code:
A1
Abstract:
Disclosed is a diphenylmethane isocyanate composition comprising a composition which is obtained by adding an alkylchlorosilane having 4-24 carbon atoms in total in the molecular structure to a diphenylmethane isocyanate having an acid degree of less than 0.1% by mass. This diphenylmethane isocyanate composition has a high acid degree of not less than 0.1% by mass. The alkylchlorosilane is preferably 1,3-dichlorotetraisopropyldisiloxane or triethylchlorosilane. The diphenylmethane isocyanate composition takes a longer time before starting to increase in viscosity (namely, has a higher storage stability) than the conventional ones.
Inventors:
TAKEDA TAKEO (JP)
YAMAGUCHI TATSUYA (JP)
YOSHIHARA TOMOMITSU (JP)
YAMADA SUSUMU (JP)
KANBARA YOSHIYUKI (JP)
YAMAGUCHI TATSUYA (JP)
YOSHIHARA TOMOMITSU (JP)
YAMADA SUSUMU (JP)
KANBARA YOSHIYUKI (JP)
Application Number:
PCT/JP2007/056466
Publication Date:
October 18, 2007
Filing Date:
March 27, 2007
Export Citation:
Assignee:
NIPPON POLYURETHANE KOGYO KK (JP)
TAKEDA TAKEO (JP)
YAMAGUCHI TATSUYA (JP)
YOSHIHARA TOMOMITSU (JP)
YAMADA SUSUMU (JP)
KANBARA YOSHIYUKI (JP)
TAKEDA TAKEO (JP)
YAMAGUCHI TATSUYA (JP)
YOSHIHARA TOMOMITSU (JP)
YAMADA SUSUMU (JP)
KANBARA YOSHIYUKI (JP)
International Classes:
C07C263/18; C07C265/14; C08G18/76
Foreign References:
| JPH0625381A | 1994-02-01 | |||
| JPH0625382A | 1994-02-01 | |||
| JPH05194353A | 1993-08-03 | |||
| JPH05117220A | 1993-05-14 |
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (SUHARA & ASSOCIATES Recruit Shin Osaka BLDG. 14-22 Nishinakajima 5-chome, Yodogawa-ku, Osaka-sh, Osaka 11, JP)
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