Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1983-02-09
1985-06-04
Anderson, Philip
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
106243, 25217411, 25217413, 264 50, 264DIG5, 425 4C, 521 82, 521 97, 521 99, 521113, 521114, B29D 2700
Patent
active
045215413
ABSTRACT:
Described is a process for preparing extruded functional fluid and solid-containing thermoplastic foamed particles using chemical blowing agents or direct gas extrusion processes, uses of such foamed particles and articles produced from said foamed particles. The process described involves the use of a single screw or double screw extruder wherein the resin particles are added upstream from the functional fluid or solid which, in turn, is added to the extruder upstream from the point of addition of the liquid or gaseous blowing agent.
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Rutherford Howard J.
Withycombe Donald A.
Anderson Philip
International Flavors & Fragrances Inc.
Liberman Arthur L.
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