Resin-containing cellulosic overlays

Details Resin-containing cellulosic overlays Resin-containing cellulosic overlays

C - Chemistry, Metallurgy

08

L

9/52

C08L 61/06 (2006.01) C08G 8/12 (2006.01) D21H 17/48 (2006.01)

Patent

CA 1131416

RESIN-CONTAINING CELLULOSIC OVERLAYS ABSTRACT OF THE DISCLOSURE Disclosed are improved resin-containing cellulosic overlays for overlaying woody substrates and processes for pre- paring same. The overlays are produced by admixing an aqueous slurry of cellulosic fibers and a resole resin produced by reacting bisphenol A, a para-substituted phenol selected from p- tertiarybutylphenol, p-tertiaryamylphenol and p-phenylphenol and formaldehyde, precipitating the resin by acidifying the resulting slurry, forming a sheet from the resin-containing slurry and drying the sheet. The overlays produced are white in color and are highly resistant to discoloration due to exposure to sunlight, heat and caustic.

279718

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