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US 12,427,458 B2Granted
Pleated polymeric sheet having apertures
AssigneeDelStar Technologies, Inc.
InventorJames Kidwell
Life of this patent
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Abstract
The present disclosure provides a polymeric plasticized film or sheet having one or more apertures to reduce the amount of material needed, as well as overall weight, per desired volume of material required. The polymeric plasticized film or sheet may also be capable of folding and keeping the crease for a desired amount of time. The polymeric plasticized film or sheet may be biodegradable.
Claims33
A gas filter, comprising:
- a pleated netting formed of at least one polymer and a plasticizer, the ratio of polymer to plasticizer ranging from 95:5 to 55:45 by weight;
- the pleated netting having one or more diamond shaped apertures for flow of gas therethrough, and further having at least one crease to form a pleat extending across a surface of the pleated netting, and
- wherein the pleated netting has a tensile modulus in the range of 1.75 to 1.35 GPa when measured in accordance with ASTM E111-97 method for determining Tensile Modulus.
A pleated polymeric netting, comprising:
- at least one polymer and a plasticizer, the pleated polymeric netting having one or more diamond shaped apertures for flow of gas or liquid therethrough, and further having at least one pleat extending across a surface of the pleated polymeric netting;
- wherein the pleated polymeric netting has a tensile modulus in the range of 1.75 to 1.35 GPa when measured in accordance with ASTM E111-97 method for determining Tensile Modulus.
Dependencies are inferred from the claim text.