Method of making expandable thermoplastic polymer beads

Details Method of making expandable thermoplastic polymer beads Method of making expandable thermoplastic polymer beads

1980-03-17

1983-01-11

Foelak, Morton

Coating processes

Particles, flakes, or granules coated or encapsulated

Resin base

521 59, 521 60, B05D 700

Patent

active

043682189

ABSTRACT:
Expandable thermoplastic polymer beads and method of producing same, wherein a core of a polymer of one or more vinyl monomers is substantially surrounded by a layer of a polyolefin comprising one or more vinyl monomers, with a foaming agent contained in at least the core.

REFERENCES:
patent: 3682844 (1972-08-01), Schoegler et al.
patent: 3743611 (1973-07-01), Muroi et al.
patent: 3826765 (1974-07-01), Alteres, Jr.
patent: 3959189 (1976-05-01), Kitamora

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