One step process for imparting decay resistance and fire retardancy to wood products
OwnerSusan L. LeVan, Rodney C. DeGrootinventors
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Abstract
A one step process for imparting both decay resistance and fire retardancy to wood and cellulosic materials by impregnating the products with a treatment solution composed of a water soluble mixture of a tertiary and quaternary ammonium preservative compound and an organic phosphate fire retardant compound.
Claims19
A one step process for imparting both fire retardance and decay resistance to a product composed of cellulosic material comprising:
- combining a first ingredient consisting of a methylolated amino resin present in a range of about 5% to about 40% by weight of the final solids content with a second ingredient selected from the group consisting of tertiary and quaternary ammonium compounds present in a range of about 0.1% to about 10% by weight of the final solids content to produce a water-soluble mixture, and
- impregnating said product with said mixture.
A one step process for imparting both fire retardance and decay resistance to a product composed of cellulosic material comprising:
- combining a first ingredient consisting of a guanyl urea phosphate present in a range of about 5% to about 40% by weight of the final solids content with a second ingredient selected from the group consisting of tertiary and quaternary ammonium compounds present in a range of about 0.1% to about 10% by weight of the final solids content to produce a water-soluble mixture, and
- impregnating said product with said mixture.
A one step process for imparting both fire retardance and decay resistance to a product composed of cellulosic material comprising:
- combining a first ingredient consisting of melaminedicyandiamide-phosphoric acid-formaldehyde present in a range of about 5% to about 40% by weight of the final solids content with a second ingredient selected from the group consisting of tertiary and quaternary ammonium compounds present in a range of about 0.1% to about 10% by weight of the final solids content to produce a water-soluble mixture, and
- impregnating said product with said mixture.
A one step process for imparting both fire retardance and decay resistance to a product composed of cellulosic material comprising:
- combining a first ingredient consisting of urea-dicyandiamide-phosphoric acid-formaldehyde present in a range of about 5% to about 40% by weight of the final solids content with a second ingredient selected from the group consisting of tertiary and quaternary ammonium compounds present in a range of about 0.1% to about 10% by weight of the final solids content to produce a water-soluble mixture, and
- impregnating said product with said mixture.
A one step process for imparting both fire retardance and decay resistance to a product composed of cellulosic material comprising:
- combining a first ingredient consisting of dicyandiamide-phosphoric acid-formaldehyde present in a range of about 5% to about 40% by weight of the final solids content with a second ingredient selected from the group consisting of tertiary and quaternary ammonium compounds present in a range of about 0.1% to about 10% by weight of the final solids content to produce a water-soluble mixture, and
- impregnating said product with said mixture.
Dependencies are inferred from the claim text.