Method for producing an aromatic poly (thio) ether ketone

Details Method for producing an aromatic poly (thio) ether ketone Method for producing an aromatic poly (thio) ether ketone

1993-10-14

1994-07-05

Bleutge, John C.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528225, 528360, 528364, C08G 6306

Patent

active

053268490

ABSTRACT:
A method for producing an aromatic poly(thio)ether ketone having repeating units of the following formula (II): ##STR1## wherein each of R.sup.1 to R.sup.12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, X is an oxygen atom or a sulfur atom, provided that part of X may be a direct bond, and n is an integer of from 0 to 2, which comprises reacting an aromatic (thio)ether carboxylic acid fluoride of the following formula (I): ##STR2## wherein R.sup.1 to R.sup.12, X and n are as defined above, under pressure in an aprotic organic solvent in the presence of boron trifluoride.

REFERENCES:
patent: 3953400 (1976-04-01), Dahl
patent: 4361693 (1982-11-01), Jansons
patent: 4398020 (1983-08-01), Rose
patent: 4820792 (1989-04-01), Towle

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