Process for purification of styrenic polymer

Details Process for purification of styrenic polymer Process for purification of styrenic polymer

1995-01-23

1995-09-12

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528497, 528498, C08F 628

Patent

active

054497469

ABSTRACT:
There is disclosed a process for purifying a styrene polymer which comprises treating a highly syntiotactic styrene polymer which is produced by using a catalyst composition of (A) an aluminoxane or a specific coordination complex compound and (B) a transition metal compound with a swelling agent (e.g. ethylbenzene) and a deactivating agent (e.g. methanol, ethanol). The process is capable of efficiently purifying the styrene polymer produced by polymerizing a styrene monomer at a high concentration with a high conversion efficiency. Accordingly, the process greatly improves the industrial productivity of highly pure styrene polymer.

REFERENCES:
patent: 2216094 (1940-09-01), Britton et al.
patent: 2915514 (1959-12-01), Denkowski
patent: 3423384 (1969-01-01), Hagemeyer, Jr. et al.
patent: 3910865 (1975-10-01), Osborn et al.
patent: 4581431 (1986-04-01), Yamazaki et al.
patent: 5321122 (1994-06-01), Kuramoto et al.
Translation of Idemitsu, Japanese Application 3-59012, Mar. 14, 1991.

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