Fluorinated cross-linking agents for epoxy resins and process fo

Details Fluorinated cross-linking agents for epoxy resins and process fo Fluorinated cross-linking agents for epoxy resins and process fo

1988-06-01

1989-07-25

Nielsen, Earl

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525505, 525507, 528 70, 528109, 528110, 528112, 528121, 528365, 528374, 528401, C08G 5940, C08G 5942, C08G 1800

Patent

active

048514853

ABSTRACT:
Non-fluorinated epoxy resins of a known type are cross-linked by means of polyfunctional fluoroalkanes containing groups which are reactive with the epoxy groups and/or with the hydroxy groups present in the starting resin. The cross-linked products so obtained, having a fluorine content not higher than 15% by weight, and preferably ranging from 1% to 5%, exhibit a complex of properties which are typical of the corresponding fluorinated resins having a much higher fluorine content; in particular, oil- and water-repellency, resistance to hydrolysis and to solvents, and minimum absorption of water.

REFERENCES:
patent: 3458571 (1969-07-01), Tokoli
patent: 4284746 (1981-08-01), Ohmori
patent: 4699969 (1987-10-01), Re et al.

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