초록 ▼

A method of manufacturing a liquified fiber-phenol-formaldehyde resin includes heating a mixture of phenol, formaldehyde, liquified cellulosic fiber and alkali at a temperature of 60°C. to 100°C. and a pH of 8-13. The liquified cellulosic fiber comprises about 5 to about 80 percent of the total weig

A method of manufacturing a liquified fiber-phenol-formaldehyde resin includes heating a mixture of phenol, formaldehyde, liquified cellulosic fiber and alkali at a temperature of 60°C. to 100°C. and a pH of 8-13. The liquified cellulosic fiber comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde and liquified fiber. Also disclosed are fibrous articles manufactured using this resin as a binder, such as fiberboards, particle board, plywood, oriented strand board, and waferboard.

대표청구항 ▼

A method of manufacturing a sheet material formed from a plurality of discrete members adhered together, including contacting a plurality of discrete sheet material members with a binding resin; disposing each of said sheet material members in contact with at least one other of said sheet material m

A method of manufacturing a sheet material formed from a plurality of discrete members adhered together, including contacting a plurality of discrete sheet material members with a binding resin; disposing each of said sheet material members in contact with at least one other of said sheet material members and pressing said sheet material members together with sufficient heat and pressure to form a consolidated sheet material, the improvement comprising said binding resin, wherein said resin is formed by mixing a liquified cellulosic fiber, formed by heating cellulosic fibers in caustic solution at a temperature of at least 100°C. and a pressure of at least 150 psi and at a caustic concentration sufficient to liquify said cellulosic phenol fibers; formaldehyde; and an alkali to form a reaction mixture and polymerizing said mixture.