Articles molded from papermill sludge

Inventors

Bruce A. Haataja
Anders E. Lund

Files

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.

Patent Number

4,303,019

Assignee

Board of Control of Michigan Technological University, Houghton, Mich.

Application Number

119,448

Date Filed

2-7-1980

Certificate of Correction

No

Issue Date

12-1-1981

Disciplines

Engineering | Materials Science and Engineering

Comments

For the most up-to-date information about this patent, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office's free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.html

Recommended Citation

Haataja, Bruce A. and Lund, Anders E., "Articles molded from papermill sludge" (1981). Michigan Tech Patents. 34.
https://digitalcommons.mtu.edu/patents/34