Title:
PRODUCTION OF ISOCYANATE GROUP-CONTAINING ORGANOPOLYSILOXANE
Document Type and Number:
Japanese Patent JPH06228161
Kind Code:
A
Abstract:
PURPOSE: To obtain the subject compound having high purity, while suppressing side reactions, by reacting an organopolysiloxane partially having an amino group with phosgene in the presence of a basic substance.
CONSTITUTION: An organopolysiloxane containing a primary amino group in the molecule and represented by formula I (R1 is 1-8C monovalent organic group; R2-R4 are 1-8C monovalent organic group, siloxy; n is 1-10; a is 0-20) [e.g. 3aminopropyltris(trimethylsiloxy)silane] is reacted with phosgene in the presence of a basic substance (e.g. triethylamine)(an organic solvent such as n-pentane is preferably used) to provide the objective compound of formula II. The reaction temperature is preferably -30 to +10°C.
Inventors:
YAMAZAKI TOSHIO
ICHINOHE SEIJI
ICHINOHE SEIJI
Application Number:
JP3473193A
Publication Date:
August 16, 1994
Filing Date:
January 29, 1993
Export Citation:
Assignee:
SHINETSU CHEMICAL CO
International Classes:
C07F7/10; C08G77/38; C08G77/388; (IPC1-7): C07F7/10; C08G77/388
Domestic Patent References:
JPS4940693A | 1974-04-16 | |||
JPS61145188A | 1986-07-02 | |||
JPS61289094A | 1986-12-19 |
Attorney, Agent or Firm:
Ryoichi Yamamoto (1 person outside)
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