" ADDITION OF ORGANIC INITIATORS DURING THE PRESSURE DROP IN VINYL CHLORIDE MONOMER POLYMERIZATION REACTIONS”
Application 1385/CHENP/2004 published 2006-02-03, filed 2004-06-21
The invention pertains to a process to polymerize one or more monomers wherein one or more initiators and optionally one or more surfactants are added to a polymerization mixture when the pressure in the polymerization reactor is dropping. This process allows a shorter polymerization time due to a higher pressure drop rate at the end of the polymerization reaction. Moreover, the cooling capacity of the polymerization reactor us used more efficiently.
Applicant
AKZO NOBEL N.V.
Velperweg 76, NL-6824 BM ArnheM, Netherland.
Inventor
International Info
Classification: C08F 14/06, 4/32, 6/00
Publication Number: PCT/EP02/14371
Priority Information
60/342,434 USA 2001-12-21
02077471.7 Europe 2002-06-18