Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1984-08-31
1985-09-17
Anderson, Philip
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
264 50, 264211, 521143, B29D 2700
Patent
active
045421625
ABSTRACT:
Described is a process for preparing extruded insect, animal or bird repellent 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 insect, animal or bird repellent fluid or solid which, in turn, is added to the extruder upstream from the point of addition to the liquid or gaseous blowing agent.
REFERENCES:
patent: 4184099 (1978-06-01), Lindauer et al.
Rutherford Howard J.
Withycombe Donald A.
Anderson Philip
International Flavors & Fragrances Inc.
Liberman Arthur L.
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