Title:
ペルフルオロポリエーテルおよびその製法、用途
Document Type and Number:
Japanese Patent JP5154737
Kind Code:
B2
Abstract:
Linear perfluoropolyethers of formula: T-O (CF2O)n(CF2CF2O)m(CF2CF2CF2O)r(CF2CF2CF2CF2O)s-T1 wherein n, m, r, s are integers such that the polymer number average molecular weight is comprised between 700 and 100,000 and the n/(n+m+r+s) ratio ranges from 0.05 to 0.40, and respective preparation process by addition of a peroxidic perfluoropolyether of formula (III): T4-O(CF2O)n'(CF2CF2O)m'(O)h-T5 having a PO from 1.8 to 4, to a perfluoropolyether oil preheated at a temperature comprised between 150 DEG C and 250 DEG C and subsequent exhaustive fluorination of the obtained compound.
Inventors:
Pier Antonio Guarda
Giuseppe Martini
Giuseppe Martini
Application Number:
JP2004047975A
Publication Date:
February 27, 2013
Filing Date:
February 24, 2004
Export Citation:
Assignee:
Solvay Solexis S.p.A.
International Classes:
C08G65/323; C08G65/00
Domestic Patent References:
| JP1131232A | ||||
| JP8323187A |
Foreign References:
| WO2002006375A1 | ||||
| WO2004060964A1 |
Attorney, Agent or Firm:
Shintaro Nogawa