Extrudable thermoplastic compositions containing a flour filler

Details Extrudable thermoplastic compositions containing a flour filler Extrudable thermoplastic compositions containing a flour filler

1975-06-09

1976-10-26

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 9, C08L 100

Patent

active

039882705

ABSTRACT:
A thermoplastic composition suitable for extrusion from an extrusion apparatus consists essentially of a resin, from about 1% to about 30% by weight of a finely-divided filler selected from the group consisting of rice hull flour, cherry pit flour, pecan shell flour and walnut shell flour and the filler containing up to about 3.0% by weight of water. Addition of from less than 1% to up to about 5% by weight of lubricant, such as mineral oil permits the use of a finely-divided filler containing up to about 4.0% of water with an unvented extrusion apparatus and up to about 5.0% of water with a vented extrusion apparatus.

REFERENCES:
patent: 2319182 (1943-05-01), Vander Pyl
patent: 2507465 (1950-05-01), Ayers
patent: 3554941 (1971-01-01), Varnell
patent: 3842045 (1974-10-01), Campbell
Plastics Extrusion Technology and Theory, pp. 7, 442, 443, Schewkel.
Beck. Product Design, pp. 24, 27-33, 386 and 391, Beck,
Chem. Abst. 77:62974 re, Conger, "Foamed Polyurethane Laminates."

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