Articles molded from papermill sludge

Details Articles molded from papermill sludge Articles molded from papermill sludge

1979-03-07

1980-09-09

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With reshaping or surface embossing of formed article

264115, 264122, B29J 500

Patent

active

042217512

ABSTRACT:
An article, such as a pallet having a substantially flat deck member and a plurality of hollow legs projecting from the deck member, is molded as a one-piece unit from a papermill sludge. Dried, comminuted papermill sludge is blended with a fibrous reinforcing material, preferably a cellulosic material such as fibrous bark particles, and a resinous particle board binder, the resulting mixture of furnish is formed into a loosely fitted mat, and the mat is placed between dyes of a mold and press and compressed to substantially the desired shape under temperature and pressure conditions sufficient to bond the sludge and bark particles together.

REFERENCES:
patent: 3354248 (1967-11-01), Haas et al.
patent: 3373233 (1968-03-01), Rondum
patent: 3927235 (1975-12-01), Chow
patent: 4058580 (1977-11-01), Flanders

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