Phenol formaldehyde steam pressing of waferboard

Details Phenol formaldehyde steam pressing of waferboard Phenol formaldehyde steam pressing of waferboard

1992-02-25

1993-06-08

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264109, 264122, B27N 312

Patent

active

052176657

ABSTRACT:
The present invention relates to a method of producing a waferboard by applying first a liquid phenol formaldehyde resin to the surface of the wafers then a powdered phenol formaldehyde resin followed by forming a layup and pressing at elevated temperature and pressure using steam pressing techniques to consolidate the layup into a board and set the phenol formaldehyde adhesive.

REFERENCES:
patent: 3968308 (1976-07-01), Buschfeld et al.
patent: 4393019 (1983-07-01), Geimer
patent: 4528309 (1985-07-01), Helgesson et al.
patent: 4850849 (1989-07-01), Hsu
patent: 4937024 (1990-06-01), Hickson
patent: 5002713 (1991-03-01), Palardy et al.
patent: 5063010 (1991-11-01), Fischer et al.
"Use of Phenol-Formaldehyde Resin in Steam Pressing" Hsu, Adhesives & Bonded Wood Symposium, Seattle, Wa., Nov. 19-21, 1991.
Steam Injection Pressing, Kamka et al., Prepared for FPRS 45th Annual Meeting, New Orleans, La., Jun. 1991.
Steam Injection Pressing, Geimer, Proc. of 16th Washington State Univ. International Symposium on Particleboard, mar. 30-Apr. 1, 1982 Pullman, Washington, pp. 115-134.
Steam Press Process for Curing Phenolic-Bonded Particleboard, Forest Products Journal, vol. 23, No. 3, Mar. 1973 by Shen.
Composites are Technically Feasible with Steam-Injection Pressing, Composite Board Product for Furniture and Cabinets: Inventions in Manufacture and Utilization, Greensboro, N.C., Nov. 11-13, 1986 by Geimer et al.
Steam Injection Pressing-Large Panel Fabrication with Southern Hardwoods in Proceedings of the 20th International Particleboard/Composite Materials Symposium; Apr. 8-10, 1986, Pullman, Washington, by Geimer et al.

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