Multi-layer tubing assembly for fluid and vapor handling systems
AssigneeHybritech Polymers
InventorsHenry S. Hsich, Dean T. Su
Life of this patent
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Abstract
This invention relates to a multi-layer tubing assembly for use in fuel-line application. The multi-layer tubing assembly comprises an extruded inner layer of thermoplastic, an adhesive layer coextruded around the inner layer and a cover layer of a multiphase polymer coextruded around the adhesive layer. The multiphase polymer forming the cover layer comprises 0.5% to 20% by weight compatibilizers and rheology modifiers.
Claims51
A multi-layer tubing assembly comprising:
- an extruded inner layer of thermoplastic;
- an adhesive layer coextruded around said inner layer;
- and
- a cover layer of a multiphase polymer coextruded around said adhesive layer;
- wherein said multiphase polymer forming said cover layer comprises 0.5% to 20% by weight compatibilizers and rheology modifiers.
A multi-layer tubing assembly comprising:
- an extruded inner layer of thermoplastic;
- an adhesive layer coextruded around said inner layer;
- and
- a cover layer of a multiphase polymer coextruded around said adhesive layer.
A multi-layer tubing assembly comprising:
- an extruded metallic inner layer;
- a protective layer of thermoplastic extruded around said metallic inner layer;
- and
- a cover layer of multiphase polymer extruded around said protective layer.
A multi-layer tubing assembly comprising:
- an inner layer of nanocomposite;
- a layer of adhesive extruded around said inner;
- and
- a cover layer extruded around said layer of adhesive.
A multi-layer tubing assembly comprising:
- an extruded inner layer of thermoplastic;
- an outer layer of multiphase polymer coextruded around said inner layer;
- and
- wherein said multiphase polymer is bonded to said thermoplastic.
A multi-layer tubing assembly comprising:
- an extruded inner layer of nanocomposite;
- an outer layer of multiphase polymer coextruded around said inner layer;
- and
- wherein said multiphase polymer is bonded to said nanocomposite.
A multi-layer tubing assembly comprising:
- an inner layer of conductive polymer;
- a middle layer of nanocomposite;
- and
- a cover layer of polymer extruded around said middle layer of nanocomposite.
A multi-layer tubing assembly comprising:
- an extruded inner layer of thermoplastic;
- an adhesive layer of multiphase polymer coextruded around said inner layer;
- and
- an outer polymer layer.
A multi-layer tubing assembly comprising:
- an extruded layer of nanocomposite;
- an outer layer of multiphase polymer coextruded around said layer of nanocomposite;
- and
- wherein said multiphase polymer is bonded to said nanocomposite.
Dependencies are inferred from the claim text.