Process for producing plasticized elastomer-styrene coated beads

Details Process for producing plasticized elastomer-styrene coated beads Process for producing plasticized elastomer-styrene coated beads

1980-12-22

1981-12-22

Silverberg, Sam

Coating processes

Particles, flakes, or granules coated or encapsulated

Resin base

521 57, C12P 3314

Patent

active

043071341

ABSTRACT:
Polymeric beads for use in forming soft molded articles of low density are produced by formation of a plasticized elastomer-styrene polymeric coating about initial styrene beads, by forming an aqueous suspension of the initial beads, adding thereto an aqueous emulsion of a coating composition consisting of styrenic monomer, a conjugated diene elastomer, and a plasticizer, containing a catalyst and a nonionic surfactant comprising an ethylene oxide condensate of an alkylphenol, the surfactant containing at least thirty moles of ethylene oxide per mole of alkylphenol, and polymerizing the coating composition about the initial beads.

REFERENCES:
patent: 3102050 (1963-08-01), Canterino
patent: 3185588 (1965-05-01), Resnick
patent: 3370022 (1968-02-01), Ingram

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