Keil & Weinkauf
Purification of poly(n-vinylcarbazole) containing impurities
 Poly-N-vinylcarbazole containing impurities is purified by a process in which the poly-N-vinylcarbazole to be purified is treated in a suitable apparatus at from 20.degree. to 150.degree. C. with an extracting agent. 
BASF Aktiengesellschaft
C
C08F
inventional
Reinhard Peter
Aldag Neumann