Fluorine-containing novolak resin and derivative thereof

Details Fluorine-containing novolak resin and derivative thereof Fluorine-containing novolak resin and derivative thereof

1988-03-21

1989-10-31

Kight, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528151, 528153, 528158, 528159, 528244, 528247, 525500, 525501, 525502, 525503, 525507, C08G 1402, C08G 804

Patent

active

048778591

ABSTRACT:
The present invention provides a fluroine-containing novolak resin or its derivative having a repeating unit of the formula ##STR1## wherein R.sup.1 is hydrogen atom, OH or ##STR2## R.sup.2 is hydrogen atom or alkyl group having 1 to 4 carbon atoms, X is fluorine-containing monovalent organic group having 2 to 20 carbon atoms.
The present invention also provides a perfluoroalkenyloxphenol or its derivative of the formula ##STR3## wherein R.sup.10 is OH or ##STR4## R.sup.11 is H, OH, alkyl group having 1 to 4 carbon atoms or ##STR5## Y is perfluoroalkenyl group having 6 to 14 carbon atoms.

REFERENCES:
patent: 3658758 (1972-04-01), Eglin et al.
patent: 3984377 (1976-10-01), Hutchinson
patent: 4754003 (1988-06-01), Monnier et al.

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