Title:
CATALYST FOR ISOCYANURATE BOND FORMATION REACTION AND PROCESS FOR PRODUCING ISOCYANURATE-BOND-CONTAINING MODIFIED POLYISOCYANATE MIXTURE WITH THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/137307
Kind Code:
A1
Abstract:
[PROBLEMS] To provide: a process for efficiently producing in a short time an isocyanurate-bond-containing modified polyisocyanate mixture which has such a low organic-polyisocyanate (monomer) content that no practical problems arise even without conducting the step of purification by distillation after reaction and which further has a low viscosity; and a catalyst for isocyanurate bond formation reactions which is for use in the process. [MEANS FOR SOLVING PROBLEMS] The catalyst for isocyanurate bond formation reactions comprises a compound represented by the following general formula (1). The process comprises using the catalyst to cause an organic polyisocyanate to undergo an isocyanurate bond formation reaction to produce an isocyanurate-bond-containing modified polyisocyanate mixture. [Chemical formula 1] [In the formula, M is an alkaline earth metal; R1 and R2 may be the same or different and each represents C6-10 alkyl; and n is 0 or 1.]
Inventors:
NAKASHIMA YUJI (JP)
WANG GUO PING (CN)
WANG GUO PING (CN)
Application Number:
PCT/JP2006/311932
Publication Date:
December 28, 2006
Filing Date:
June 14, 2006
Export Citation:
Assignee:
NIPPON POLYURETHANE KOGYO KK (JP)
NAKASHIMA YUJI (JP)
WANG GUO PING (CN)
NAKASHIMA YUJI (JP)
WANG GUO PING (CN)
International Classes:
C08G18/22; C07D251/34; C08G18/79; C07B61/00
Foreign References:
| JP2002097244A | 2002-04-02 | |||
| JPH0853526A | 1996-02-27 | |||
| JPH0320322A | 1991-01-29 | |||
| JPH026520A | 1990-01-10 |
Attorney, Agent or Firm:
Hasegawa, Yoshiki (Ginza First Bldg. 10-6, Ginza 1-chom, Chuo-ku Tokyo, JP)
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