Saint-gobain Performance Plastics Corporation

Kathryn J Morris

Wayne Edward Garver

Mark Fisher Colton

Charles S Golub

Gerald H Ling

James Ludlow

Michael John Tzivanis

Nathan Klettlinger

Josef E Guesman

Mark F Colton

Wayne E Garver

Systems and methods are disclosed that include providing a tubing construction with at least one layer formed from a thermoplastic vulcanizate (TPV). The tubing construction is suitable for use in pump applications subjected to cyclic loading and unloading. The tubing construction maintains a flowrate stability of +/−10% for an extended period of time to provide consistent fluid dispensing and/or dosing for an extended life of the tubing construction and/or the fluid pump.

Long life pump tubing

A flexible tube includes a polymer composition of a poly vinyl chloride having a molecular weight greater than about 1.0 inherent viscosity (IV) and a bio-based plasticizer. Further, a method of forming a flexible tube is provided. The method includes compounding a poly vinyl chloride having a molecular weight greater than about 1.0 inherent viscosity (IV) with a bio-based plasticizer to form a polymer composition and extruding the polymer composition into the flexible tube.

Flexible tube

A multilayer flexible tube includes an inner layer including a melt processable fluoropolymer, wherein the fluoropolymer includes a copolymer of a poly vinylidene fluoride (PVDF) and a hexafluoropropylene (HFP); and an outer layer including a melt processable polymer having a shore hardness less than a shore hardness of the inner layer, wherein the multilayer flexible tube has a maximum storage modulus of at least 300 MegaPascal (MPa) at a temperature of about &#x2212;10&#xb0; C.

Multilayer flexible tube and methods for making same

A multilayer flexible tube includes an inner layer including a melt processable fluoropolymer, wherein the fluoropolymer includes a copolymer of a poly vinylidene fluoride (PVDF) and a hexafluoropropylene (HFP); and an outer layer including a melt processable polymer having a shore hardness less than a shore hardness of the inner layer. Further provided is a method of making the multilayer flexible tube.

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Tallmadge, OH, United States of America

Kathryn J Morris