Process for the manufacture of flame-resistant boards, a flame-r

Details Process for the manufacture of flame-resistant boards, a flame-r Process for the manufacture of flame-resistant boards, a flame-r

1974-05-22

1977-03-15

Guynn, Herbert B.

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252 81, 260 515, 260 676R, 260 70R, 260840, 260849, 260DIG24, 428537, 428538, 428921, C09K 328, B27K 352

Patent

active

040125580

ABSTRACT:
Flame resistant boards of bonded wood sheets and/or lignocellulosic material wherein the boards are bonded with a bonding agent, such as a formaldehyde resin, and a flame retardant mixture comprising ammonium bromide, an organic phosphate such as urea phosphate and an amine derivative of a formaldehyde polymer such as hexamethylenetetramine whereby said amine derivative inhibits the rate of gelling of said bonding agent.

REFERENCES:
patent: 2452054 (1948-10-01), Jones et al.
patent: 2520103 (1950-08-01), MacMillan et al.
patent: 2784159 (1957-03-01), Fluck et al.
patent: 3762942 (1973-10-01), Putnam et al.
patent: 3811992 (1974-03-01), Handa et al.
patent: 3819518 (1974-06-01), Endler

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