초록 ▼

Compositions and methods for manufacturing composite laminate structures incorporating sheets having a moldable matrix are disclosed. Suitable compositions are prepared by mixing together a water dispersable organic binder, water, and appropriate additives (such as aggregates and fibers) which impar

Compositions and methods for manufacturing composite laminate structures incorporating sheets having a moldable matrix are disclosed. Suitable compositions are prepared by mixing together a water dispersable organic binder, water, and appropriate additives (such as aggregates and fibers) which impart predetermined properties so that a sheet formed therefrom has the desired performance criteria. The compositions are formed into sheets by first extruding them into a sheet and then calendaring the sheet using a set of rollers. The calendered sheets are dried in an accelerated manner to form a substantially hardened sheet. The drying process is performed by heated rollers and/or a drying chamber. The inorganically filled sheets so formed may have properties substantially similar to sheets made from presently used materials like paper, cardboard, polystyrene, or plastic. Such sheets can be rolled, pressed, scored, perforated, folded, and glued before or after being incorporated into composite laminate structures. Such composite laminate structures have especial utility in the mass production of containers, particularly food and beverage containers.

대표청구항 ▼

[ What is claimed and desired to be secured by United States Letters Patent is:] [1.] An article of manufacture having a laminate structure comprising an inorganically filled sheet and at least one other sheet laminated to the inorganically filled sheet, the inorganically filled sheet including an o

[ What is claimed and desired to be secured by United States Letters Patent is:] [1.] An article of manufacture having a laminate structure comprising an inorganically filled sheet and at least one other sheet laminated to the inorganically filled sheet, the inorganically filled sheet including an organic binder selected from the group consisting of polysaccharides, proteins, water soluble polymers, and mixtures and derivatives thereof, a fibrous material, and an inorganic aggregate filler in an amount in a range from about 20% to about 90% by weight of solids in the inorganically filled sheet, said inorganically filled sheet having a thickness less than about 1 cm.