IT1183347B - Neutralisation of acid and ketone gps. in per:fluoro:polyether derivs. - Google Patents
Neutralisation of acid and ketone gps. in per:fluoro:polyether derivs.Info
- Publication number
- IT1183347B IT1183347B IT19499/85A IT1949985A IT1183347B IT 1183347 B IT1183347 B IT 1183347B IT 19499/85 A IT19499/85 A IT 19499/85A IT 1949985 A IT1949985 A IT 1949985A IT 1183347 B IT1183347 B IT 1183347B
- Authority
- IT
- Italy
- Prior art keywords
- per
- derivs
- neutralisation
- fluoro
- polyether
- Prior art date
Links
- 239000004721 Polyphenylene oxide Substances 0.000 title 1
- 239000002253 acid Substances 0.000 title 1
- 125000001153 fluoro group Chemical group F* 0.000 title 1
- 150000002576 ketones Chemical class 0.000 title 1
- 238000006386 neutralization reaction Methods 0.000 title 1
- 229920000570 polyether Polymers 0.000 title 1
- 125000006342 heptafluoro i-propyl group Chemical group FC(F)(F)C(F)(*)C(F)(F)F 0.000 abstract 1
- 239000010702 perfluoropolyether Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyethers (AREA)
Abstract
Perfluoropolyethers (I) are neutralised by reaction with F2 in presence of 200-500 nm radiation. Reaction is pref. at -40 to 100 deg.C. using (I) of residual acidity at least 0.0005 equiv.-COF per g. (I) are of formula Rf-CF2-COF; Rf-CF2-OCOF; Rf-CF2-CF2-OCOF; Rf-CF(CF3)-COF; Rf-CF2-CF(CF3)-OCOF; Rf-CF(CF3)-CF2-OCOF or Rf-CF2-CO-CF3; Rf=AO(CF2-CF(CF3)-O)m- (CF2O)n(CF(CF3)-O)r-; AO(CF2CF2-O)t(CF2-O)p- or AO-(CF2CF2-O)t (CF2O)n(CF(CF3)-O-)r-(CF2-CF(CF3)-O-)m-; A = CF3, C2F5, C3F7 or CF(CF3)2; n, m and r = 1-50; t and p = 1-200) the various types of perfluoroxyalkylene units are randomly distributed along the chain.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19499/85A IT1183347B (en) | 1985-02-13 | 1985-02-13 | Neutralisation of acid and ketone gps. in per:fluoro:polyether derivs. |
US06/827,141 US4664766A (en) | 1985-02-13 | 1986-02-07 | Photochemical process for neutralizing perfluoropolyethers |
CA000501700A CA1273316A (en) | 1985-02-13 | 1986-02-12 | Process for neutralizing perfluoropolyethers |
EP86101760A EP0193028B1 (en) | 1985-02-13 | 1986-02-12 | Process for neutralizing perfluoropolyethers |
DE8686101760T DE3664919D1 (en) | 1985-02-13 | 1986-02-12 | Process for neutralizing perfluoropolyethers |
JP61028092A JPH0686396B2 (en) | 1985-02-13 | 1986-02-13 | Method for neutralizing perfluoropolyether |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19499/85A IT1183347B (en) | 1985-02-13 | 1985-02-13 | Neutralisation of acid and ketone gps. in per:fluoro:polyether derivs. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8519499A0 IT8519499A0 (en) | 1985-02-13 |
IT1183347B true IT1183347B (en) | 1987-10-22 |
Family
ID=11158545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19499/85A IT1183347B (en) | 1985-02-13 | 1985-02-13 | Neutralisation of acid and ketone gps. in per:fluoro:polyether derivs. |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1183347B (en) |
-
1985
- 1985-02-13 IT IT19499/85A patent/IT1183347B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8519499A0 (en) | 1985-02-13 |
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