Patent ID: 9499663
Filing Date: 2016-11-22
CPC Classification: C08G

Claim Text:
1. A method for producing a polyether ether ketone, comprising the following steps: a) causing an at least disubstituted benzophenone of the general formula (I) to react with a phenyl boric acid having the following structural formula (VII): wherein A is a carbon atom provided with a protecting group, R each independently of one another, are H, D, OH, X, substituted or unsubstituted C X is F, Cl, Br or I, Z, Z′, Z″, Z′″, each independently of one another, are OH, OMe, Me(OH) m is 1, 2, 3 or 4, R Me is metal, alkali metal or alkaline earth metal, b) deprotecting the product formed in step a) in order to obtain a polyether ether ketone of general formula (III): wherein G, G′, each independently of one another, are O or C and n is an integer which is greater than 10.