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Title:
METHOD FOR PRODUCING UREA GROUP AND/OR BURET GROUP-CONTAINING POLYISOCYANATE PREPARATION, POLYISOCYANATE PREPARATION OBTAINED BY SAID METHOD AND USE THEREOF AS ISOCYANATE COMPONENT IN PRODUCTION OF PLASTIC BY ISOCYANATE POLYCONDENSATION
Document Type and Number:
Japanese Patent JPS61255924
Kind Code:
A
Abstract:
The present invention is directed to a process for the production of urea- and/or biuret-modified polyisocyanates by reacting organic polyisocyanates with a mixture of high molecular weight isocyanate-reactive compounds and low molecular weight isocyanate-reactive compounds, wherein at least 25% of the isocyanate-reactive groups are primary amino groups. The present invention is further directed to the products obtained by this process and their use for the production of polyisocyanate polyaddition products, especially for the preparation of molded articles by the RIM process.

Inventors:
BUERUNAA RASUHOOFUAA
RAINAA PAURU
KURAUSU ZEERU
KURISUCHIAN BUEEBAA
Application Number:
JP10400286A
Publication Date:
November 13, 1986
Filing Date:
May 08, 1986
Export Citation:
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Assignee:
BAYER AG
International Classes:
C07C275/28; C07C275/62; C08G18/00; C08G18/12; C08G18/65; C08G18/66; C08G18/78; C08G18/80; (IPC1-7): C08G18/66; C08G18/78
Attorney, Agent or Firm:
Kazuho Kawarada