Aqueous suspension polymerization process of compositions contai

Details Aqueous suspension polymerization process of compositions contai Aqueous suspension polymerization process of compositions contai

1987-09-16

1988-09-06

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 60, 526281, 526282, C08J 920

Patent

active

047693924

ABSTRACT:
The polymerization of compositions containing styrene by an aqueous suspension process in which is used a suspending agents system constituted by a mineral agent and, an extending agent which is at least a rosin acid derivative (abietic acid, neoabietic acid, dextropimaric acid) or their salts of a metal belonging to Group IIa of the Periodic Classification of elements. The use of this extending agent has the advantage to ameliorate the surface aspect of moulded articles obtained from expanded polymer pearls prepared with the above polymerization process.

REFERENCES:
patent: 3526605 (1970-09-01), Ingram

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