METHOD OF PRODUCING UNCAKING FROTHING POLYSTYRENE Russian patent published in 1994 - IPC

Abstract SU 1462759 A1

FIELD: production of frothing polystyrene. SUBSTANCE: polymerization of styrene is carried out in aqueous suspension, polyethylene wax having molecular weight 500-3000 is added into said suspension, wax's quantity being 0.01-1 mass % . Thus prepared beads are impregnated by frothing agent and then are isolated of suspension. Degree of styrene's conversion is 60-100% . EFFECT: improves physical and mechanical properties of the product, improves its processing ability. 1 tbl

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SU 1 462 759 A1

Authors

Shekhtmejster I.Eh.

Bejlina V.I.

Abramova V.Kh.

Ivanov V.M.

Dates

1994-05-15—Published

1987-03-30—Filed