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US 5,582,682 AGranted
Process and a composition for making cellulosic composites
OwnerArthur Ferrettiinventor
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OwnerArthur Ferrettiinventor
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The specification discloses an unorthodox system for manufacturing strong, light-weight and weather-resistant cellulosic composite materials from discarded paper and newsprint, and papermill sludge--and from an unlimited variety of particulated fibrous lignocellulosics--without the use of an extrinsic adhesive. Both the matrix-forming resin and the fiber-substrate, which comprise the entire composite, are spontaneously created in situ at ambient conditions by the ammoniation of a mixture of a protein-containing material and a particulated cellulosic. Heating an article shaped from such a mixture to above 175.degree. C. polymerizes the resin and bonds the fiber-substrate into a cellulosic composite product. Also disclosed is a process for manufacturing reinforced and laminated composites as well as a composition which simplifies the production of both cellulosic composites and all-biomass thermosetting resins.
A process for manufacturing a cellulosic composite with a essentially of a thermoset Maillard resin wherein both a carbohydrate reactant of said resin and a substrate-forming solids-residue are derived from a particulated cellulosic feedstock, which process comprises:
A cellulosic composite comprised of a matrix, which matrix consists essentially of a thermoset Maillard resin formed by a protein-carbohydrate reaction, and a cellulosic fiber substrate wherein both a carbohydrate reactant of said resin and a substrate-forming solids-residue are derived from a particulated cellulosic feedstock.
A single-step process for manufacturing a cellulosic composite with a matrix consisting essentially of a thermoset Maillard resin wherein both a carbohydrate reactant of said resin and a substrate-forming solids-residue are derived from a particulated cellulosic feedstock, and wherein a mixture of amounts of said cellulosic feedstock and a protein-containing material effective to create said resin will produce said cellulosic composite when said mixture is ammoniated to alkalinity, unified and subjected to said single process step, which step is comprised of heating said ammoniated and unified mixture at a temperature between about 175.degree. C. and about 260.degree. C. for an interval of time sufficient to produce said cellulosic composite.
A process for manufacturing a cellulosic composite with a matrix consisting essentially of a thermoset Maillard resin with the optimum strength realizable from a particulated cellulosic feedstock, wherein both a carbohydrate reactant of said resin and a substrate-forming solids-residue are derived from said cellulosic feedstock, which process comprises:
Dependencies are inferred from the claim text.