Wood modifier composition

Details Wood modifier composition Wood modifier composition

1995-06-07

1996-08-27

Green, Anthony

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

106 1812, 106 183, 106 1832, 10628734, 1061622, 424724, 427297, 427440, 514 55, A01N 3300

Patent

active

055497390

ABSTRACT:
A wood modifier composition containing a mixture of a water-soluble, low molecular weight chitosan substance and colloidal silica is disclosed. The mixture contains from about 15 to about 300 parts by weight of SiO.sub.2 per part of the low molecular weight chitosan substance, and may also contain one or more compounds capable of improving wood quality, selected from boron, copper, silver, aluminum, titanium, manganese and black lead. The wood modifier composition is preferably used as an aqueous solution having a pH of about 5 to about 12. The wood modifier composition according to the present invention can be used as a neutral aqueous solution having a low viscosity which can easily penetrate into wood cells and be safely fixed therein. Impregnation of wood materials by colloidal silica can be easily achieved by the wood modifier composition according to the present invention, thereby improving defects in natural wood materials and strengthening the physical properties of wood by providing wood preservation, fire retardance, shrinkage resistance, etc. without lessening the desirable characteristics of the wood materials.

REFERENCES:
patent: 5348799 (1994-09-01), Boston

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