Manufacture of styrene suspension polymers

Details Manufacture of styrene suspension polymers Manufacture of styrene suspension polymers

1977-08-17

1978-12-12

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526233, 526346, 526347, 521 56, C08F 1208

Patent

active

041297067

ABSTRACT:
Process for the manufacture of styrene polymers optionally containing blowing agent by polymerization in aqueous suspension using as the suspension stabilizer a calcium phosphate which after its manufacture by precipitation has been heated in aqueous dispersion for at least 2 hours at from 70.degree. to 130.degree. C. The styrene polymers may be used for the manufacture of foams.

REFERENCES:
patent: 2715118 (1955-08-01), Grim
patent: 3449311 (1969-06-01), Lowell
patent: 3526605 (1970-09-01), Ingram
patent: 3539543 (1970-11-01), Lederer

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