Multi-layer heat shrinkable tubular sleeve
AssigneesTyco Electronics UK Ltd., Tyco Electronics Raychem GmbH
InventorsDavid Francis Pearce, Richard Graf, Thomas Rohde, John David Stoker, Timothy S. Smith
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Abstract
A multi-layer heat-shrinkable tubular sleeve (100) comprises an outer layer (110) and an inner layer (120). The outer layer (110) is arranged around the inner layer (120). The outer layer (110) comprises a partially crystalline thermoplastic material with a major part of partially crystalline thermoplastic material with a crystallinity of more than 60%. The inner layer (120) comprises a partially crystalline thermoplastic material or an elastomeric material.
Claims19
A multi-layer heat-shrinkable tubular sleeve comprising an outer layer and an inner layer,
- wherein the outer layer is adjacently arranged around the inner layer, the outer layer defines an outermost surface of the tubular sleeve and is comprised of an electrically-insulating material;
- wherein the outer layer comprises a partially crystalline thermoplastic electrically-insulating material,
- wherein the inner layer comprises a partially crystalline thermoplastic material or an elastomeric material,
- wherein the outer layer comprises a major part of partially crystalline thermoplastic material with a crystallinity of more than 60%;
- and
- wherein the outer layer comprises at least two elongate electrodes positioned within a portion of the outer layer and positioned radially outward from a circumference of an outer surface of the outer layer, the at least two elongate electrodes extending at least partially along the sleeve.
A method for producing a multi-layer heat-shrinkable tubular sleeve the method comprising steps of:
- co-extruding an inner layer and an outer layer of the sleeve, wherein the outer layer is arranged around the inner layer and is comprised of an electrically-insulating material;
- cross-linking the sleeve material;
- expanding the sleeve;
- and
- inserting at least two elongate electrodes within a portion of the outer layer and positioning the at least two elongate electrodes radially outward from a circumference of an outer surface of the outer layer, the at least two elongate electrodes extending at least partially along the sleeve.
Dependencies are inferred from the claim text.