Process for the preparation of alpha-methylstyrene polymers

Details Process for the preparation of alpha-methylstyrene polymers Process for the preparation of alpha-methylstyrene polymers

1992-03-27

1993-11-30

Jagannathan, Vasu S.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525244, 525263, 525308, 525309, 525479, C08F 440, C08F26504, C08F28312

Patent

active

052666425

ABSTRACT:
An improved process for the preparation of .alpha.-methylstyrene polymers by aqueous emulsion polymerization in which a styrene monomer mixture is first polymerized in a quantity of from 0.5 to 8% by weight of the total quantity of monomers and thereafter an .alpha.-methylstyrene monomer mixture is polymerized batchwise or semi-continuously.

REFERENCES:
patent: 3268625 (1966-08-01), Jones et al.
patent: 3288887 (1966-11-01), Yoshino et al.
patent: 3367995 (1968-02-01), Yoshino et al.

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