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US 5,702,787 AGranted
Molded articles having an inorganically filled oragnic polymer matrix
AssigneeE. Khashoggi Industries
InventorsPer Just Andersen, Simon K. Hodson
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AssigneeE. Khashoggi Industries
InventorsPer Just Andersen, Simon K. Hodson
Estimating the term…
Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more aggregate materials, fibers, and optional admixtures in the correct proportions in order to form an article which has the desired performance criteria. The inorganically filled mixtures are molded to fashion a portion of the mixture into a form stable shape for the desired article. Once the article has obtained form stability, the article is removed from the mold and allowed to harden to gain strength. The articles may have properties substantially similar to articles presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. They have especial utility in the mass production of containers, particularly food and beverage containers.
An article of manufacture comprising an inorganically filled matrix including a substantially homogeneous mixture of organic binder and inorganic aggregate, the organic binder comprising a water-dispersible organic polymer binder selected from the group consisting of polysaccharides, proteins, water-soluble polymers, derivatives of the foregoing, and mixtures of the foregoing, the inorganic aggregate having a concentration in a range from about 20% to about 95% by weight of total solids in the inorganically filled matrix, the inorganically filled matrix including a fibrous material substantially homogeneously dispersed therein, wherein the inorganically filled matrix has a thickness in a range from about 0.01 mm to about 1 cm and degrades after prolonged exposure to water.
An article of manufacture comprising an inorganically filled matrix including a substantially homogeneous mixture of organic binder and inorganic aggregate, the organic binder being selected from the group consisting of polysaccharides, proteins, water-soluble polymers, derivatives of the foregoing, and mixtures of the foregoing, the inorganic aggregate having a concentration in a range from about 30% to about 98% by volume of total solids in the inorganically filled matrix, the inorganically filled matrix including a fibrous component substantially homogeneously dispersed therein, wherein the inorganically filled matrix has a thickness in a range from about 0.01 mm to about 1 cm and degrades after prolonged exposure to water.
An article of manufacture comprising an inorganically filled matrix including a substantially homogeneous mixture of aggregate and organic binder formed by removing a substantial quantity of water by evaporation from an inorganically filled mixture including water, a water-dispersible organic binder selected from the group consisting of polysaccharides, proteins, water-soluble polymers, derivatives of the foregoing, and mixtures of the foregoing, an inorganic aggregate having a concentration in a range from about 20% to about 95% by weight of total solids in the inorganically filled mixture, and a fibrous component substantially homogeneously dispersed throughout the inorganically filled mixture, wherein the inorganically filled matrix has a wall thickness in a range from about 0.01 mm to about 1 cm and degrades after prolonged exposure to water.
Dependencies are inferred from the claim text.