Preparation of densified wood impregnated with phenolic resins

Details Preparation of densified wood impregnated with phenolic resins Preparation of densified wood impregnated with phenolic resins

1975-07-21

1977-06-21

Lusignan, Michael R.

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

427393, 427440, B05D 312, B05D 302, B05D 118

Patent

active

040312763

ABSTRACT:
Improved preparation of densified wood reinforced with a resole phenolic resin is accomplished by impregnating wood with a solution of the resin in the presence of about 0.6 to 4 parts of methanol, acetone, or mixture thereof per part by weight of the solids content of the resin under a pressure of about 10-50 Kgs/cm.sup.2 and thereafter drying and curing the resin-impregnated wood. The resultant product has an enhanced content of cured resin and greater bending strength than densified wood prepared by conventional resin impregnating techniques.

REFERENCES:
patent: 2983629 (1961-05-01), Anderson
patent: 3428477 (1969-02-01), Hallonquist et al.
patent: 3493417 (1970-02-01), Moren et al.
patent: 3519468 (1970-07-01), Brown et al.
patent: 3519476 (1970-07-01), Bremmer et al.
patent: 3563788 (1971-02-01), Brown et al.
patent: 3637429 (1972-01-01), Anderson et al.

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