Structural wood panels with improved fire resistance

Details Structural wood panels with improved fire resistance Structural wood panels with improved fire resistance

1978-07-28

1980-06-24

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

260 172, 428528, 428541, 428921, B32B 512

Patent

active

042095611

ABSTRACT:
Structural wood paneling or other molded wood compositions consisting of finely divided wood chips, flour, or strands are bound together and hot pressed with a modified novolac resin which is the cured product of a prepolymer made from an aralkyl ether or halide with a phenol and a hardening agent such as hexamethylene tetramine. The fire resistance of these articles is further improved by incorporating in the binder certain inorganic fillers, especially a mixture of ammonium oxalate and ammonium phosphate.

REFERENCES:
patent: 3164511 (1965-01-01), Elmendorf
patent: 3576788 (1971-04-01), Harris et al.
patent: 3632555 (1972-01-01), Harris et al.
patent: 3811992 (1974-05-01), Handa et al.

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