Process of producing modified wood

Details Process of producing modified wood Process of producing modified wood

1987-07-22

1989-05-23

Bell, Janyce

Coating processes

Vacuum utilized prior to or during coating

Organic base

427325, 427350, 427386, 427397, 427440, B06D 300

Patent

active

048329878

ABSTRACT:
A process of producing modified wood by impregnating dried wood with a mixed solution composed of phthalic anhydride as a polybasic acid anhydride and epichlorohydrin as an epoxy compound at a mol ratio of 1:1 to 1:30 by dipping the wood in the mixed solution, withdrawing the impregnated wood from the mixed solution, and heating the wood to a temperature of from 60.degree. C. to 180.degree. C. to simultaneously adding phthalic anhydride and epichlorohydrin to the hydroxyl groups of the wood. By the process of this invention, excellent dimensional stability and weather resistance can be imparted to the wood while retaining the properties specific to the wood.

REFERENCES:
patent: 2867543 (1959-01-01), Braun
patent: 4025663 (1977-05-01), Brandt
patent: 4057658 (1977-11-01), Sjoo et al.
patent: 4060953 (1977-12-01), Milne
The Condensed Chemical Dictionary, 6th ed. Rheinhold, N.Y., 1961, pp. 444 and 445.

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