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US 2014/0308500 A1Published application
Mineral filled polymer compounds for the production of flexible plastic film and sheet substrates with improved yield
AssigneeHeritage Plastics, Inc.
InventorFRANK A. RUIZ
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Abstract
A flexible plastic sheet made from a mineral/polymer compound mixture. The mineral/polymer compound mixture including a mineral component comprising 25%-75% by weight of the mixture and a polymer component comprising 75%-25% by weight of the mixture. The flexible plastic sheet defines a micro porous closed cell structure including a plurality of microscopic voids created during a simultaneous cooling and cavitation inducing process to produce the flexible plastic sheet.
Claims25
A method for producing a mineral/polymer compound sheet, comprising the steps of:
- generating a mixture 25%-75% of a mineral with 75%-25% of a polymer;
- extruding the mixture into a molten sheet of the mixture;
- and
- processing the molten sheet of the mixture to simultaneously cool the molten sheet and create cavitation within the molten sheet to produce the mineral/polymer compound sheet defining a micro porous closed cell structure therein.
1 more element
A flexible plastic sheet, comprising:
- a mineral/polymer compound mixture including:
- a mineral component comprising 25%-75% by weight of the mixture;
- a polymer component comprising 75%-25% by weight of the mixture;
- and
- wherein the flexible plastic sheet defines a micro porous closed cell structure including a plurality of microscopic voids created during a simultaneous cooling and cavitation inducing process producing the flexible plastic sheet.
2 more elements
Dependencies are inferred from the claim text.