Pressure impregnation of wood poles for preservation

Details Pressure impregnation of wood poles for preservation Pressure impregnation of wood poles for preservation

1984-07-30

1986-01-28

Morganstern, Norman

Stock material or miscellaneous articles

Impregnated naturally solid product

Wood timber product

106 1505, 106 1826, 106 1836, 106297, 424137, 427297, 427440, 4285371, B27K 336

Patent

active

045671150

ABSTRACT:
A treatment for wood poles, as used for telecommunications and electric power poles, to reduce surface hardening comprises modifying the standard treatment solution by the addition of a polymer of ethylene oxide. A surface active agent is a further possible additive, and reduction of the hexavalent chrome ion in the standard solution is a further modification.

REFERENCES:
patent: 3832463 (1974-08-01), Nicholson
patent: 4313976 (1982-02-01), Leach
Moilliet et al., "Surface Activity" Van Nostrand Co. Princeton, NJ, 1961, TP149M61961C2, p. 466.

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