Title:
【発明の名称】フルオロオルガノポリシロキサンの製造方法
Document Type and Number:
Japanese Patent JPH0618881
Kind Code:
B2
Abstract:
A process for preparing a fluoroorganopolysiloxane having a fluorine-containing organic group represented by the following formula: F-(-CgF2gO-)d-ChF2hCH2- where d represents an integer of from 1 to 5, g represents an integer of from 1 to 3, and h is 1 or 2, comprising the steps of: polymerizing a monomer comprising a fluorine-containing cyclotrisiloxane having the following formula (II): wherein R<1> represents the above fluorine-containing organic group, R<2> is a fluorine-free hydrocarbon group, and R<3> is a fluorine-free divalent hydrocarbon group, in the presence of an acidic catalyst or a basic catalyst, and in the presence of water at a temperature of not higher than 80 DEG C, and neutralising the resulting polymerization product. This process can produce the above polymer containing little low molecular weight compounds and having a desired polymerization degree in a good yield.
Inventors:
INOMATA HIROSHI
TARUMI YASURO
TARUMI YASURO
Application Number:
JP4096189A
Publication Date:
March 16, 1994
Filing Date:
February 21, 1989
Export Citation:
Assignee:
SHINETSU CHEM IND CO
International Classes:
C07F7/21; C08G77/06; C08G77/22; C08G77/24; (IPC1-7): C08G77/24; C08G77/24
Domestic Patent References:
| JP6247605A |
Attorney, Agent or Firm:
Shuji Iwamiya
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