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Title:
METHOD FOR PRODUCING α-METHYLSTYRENE COPOLYMER
Document Type and Number:
Japanese Patent JP2002069114
Kind Code:
A
Abstract:

To provide a method for producing α-methylstyrene copolymer of which the hue is excellent, the deflection temperature under load is high and also the moldability and mechanical characteristics are excellent.

The method uses one or more sorts of a peroxyketal polymerization initiator having 10 hours of the half-life temperature of 90-102°C (in a benzene solution) together with any one or more sorts of t-butyl peroxyisobutyrate and t-butyl peroxy-2-ethylhexanoate as a polymerization initiator to perform the polymerization.


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Inventors:
SUZUMURA KOJI
TATEOKA SEISHU
ISHIKAWA TATSUO
Application Number:
JP2000262059A
Publication Date:
March 08, 2002
Filing Date:
August 31, 2000
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
C08F4/38; C08F212/10; (IPC1-7): C08F4/38; C08F212/10



 
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