Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1987-05-04
1989-08-01
Walton, Donald L.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
20415792, B01J 1912
Patent
active
048530972
ABSTRACT:
Perfluoropolyethers having fluorinated epoxy groups positioned along their perfluoropolyether chain, and free from peroxidic oxygen, are obtained by means of a low-temperature oxidation process, in the liquid phase, with molecular oxygen and in the presence of U.V. light, of a mixture of a perfluorinated monoolefin and a perfluorinated conjugated diene, and of the subsequent photochemical decomposition of the peroxy groups contained in the photooxidation product, carried out by treating the peroxy-groups-containing product with U.V. light at a temperature comprised within the range of from 0.degree. C. to 160.degree. C. Derivatives of said epoxy containing perfluoropolyethers in which the epoxy groups have been turned into functional groups.
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De Patto Ugo
Marchionni Giuseppe
Strepparola Ezio
Viola Gian T.
Ausimont S.p.A.
Walton Donald L.
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