PROCESS FOR RECOVERING BROMINATED STYRENE-BUTADIENE COPOLYMERS FROM A BROMINATION REACTION SOLUTION
摘要
Brominated styrene-butadiene copolymers are recovered from solutions in a halogenated solvent by an anti-solvent precipitation process. The precipitation process is performed by adding the anti-solvent to the brominated styrene-butadiene copolymer solution. By performing the precipitation using this specific order of addition, a denser product is obtained that is easier to dry. The recovered product shows a reduced tendency to act as a nucleating agent when it is used as a flame retardant additive in an extrusion foaming process.
申请公布号
EP2598539(A1)
申请公布日期
2013.06.05
申请号
EP20110764911
申请日期
2011.09.19
申请人
DOW GLOBAL TECHNOLOGIES LLC
发明人
HULL, JOHN, WESLEY;KING, BRUCE, A.;KRAM, SHARI, LYNN;KEIFER, JOSEPH, J.