Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From fluorine-containing reactant
Patent
1987-05-08
1989-03-28
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From fluorine-containing reactant
528 73, 528104, 528109, 528110, 528365, 528374, 525389, 525504, 525505, 525508, 525523, 525528, 525533, C08G 5942, C08G 5950, C08G 5962, C08G 5966
Patent
active
048165450
ABSTRACT:
Non-fluorinated epoxy resins of known type are crosslinked by means of polyfunctional perfluoropolyethers containing groups which are reactive with the epoxy groups and/or with the hydroxy groups present in the starting resin. The so-obtained crosslinked products, with a fluorine content not higher than 20% by weight, preferably comprised within the range of from 5% to 15%, are endowed with a set of properties typical of the corresponding fluorinated resins with a much higher fluorine content, in particular, water- and oil-repellence, resistance to hydrolysis and to solvents, minimum water absorption.
REFERENCES:
patent: 3720639 (1973-03-01), Griffith
patent: 3810874 (1974-05-01), Mitsch et al.
patent: 4451646 (1984-05-01), Sianesi et al.
Donati Gianni
Re Alberto
Ausimont S.p.A.
Kight John
Krass Frederick F.
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