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.

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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
Application number
IT19499/85A
Other languages
Italian (it)
Other versions
IT8519499A0 (en
Inventor
Giuseppe Marchionni
Gian Tommaso Viola
Original Assignee
Montefluos Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montefluos Spa filed Critical Montefluos Spa
Priority to IT19499/85A priority Critical patent/IT1183347B/en
Publication of IT8519499A0 publication Critical patent/IT8519499A0/en
Priority to US06/827,141 priority patent/US4664766A/en
Priority to CA000501700A priority patent/CA1273316A/en
Priority to EP86101760A priority patent/EP0193028B1/en
Priority to DE8686101760T priority patent/DE3664919D1/en
Priority to JP61028092A priority patent/JPH0686396B2/en
Application granted granted Critical
Publication of IT1183347B publication Critical patent/IT1183347B/en

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  • 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.
IT19499/85A 1985-02-13 1985-02-13 Neutralisation of acid and ketone gps. in per:fluoro:polyether derivs. IT1183347B (en)

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)

Also Published As

Publication number Publication date
IT8519499A0 (en) 1985-02-13

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