Multi-Layered Assembly With Tight Peel Control
AssigneeArgotec, Inc.
InventorsThomas C. Burke, Jeffrey James O'Brien, Viktor Vlasenko
Life of this patent
Estimating the term…
Abstract
Embodiments disclosed herein provide for multi-layered assemblies comprising a carrier having opposed sides; a heat sealable layer disposed on at least a portion of one of said sides of the carrier, said heat sealable layer comprising a partially salt neutralized ionomer; and a polymeric film comprising polyurethane and having opposed sides, wherein one of said sides of the polymeric film in at least in partial contact with said heat sealable layer, methods of making the same as well as other variations.
Claims27
A multi-layered assembly comprising:
- a carrier having opposed sides;
- a heat sealable layer disposed on at least a portion of one of said sides of the carrier, said heat sealable layer comprising a partially salt neutralized ionomer;
- and
- a polymeric film comprising polyurethane and having opposed sides, wherein one of said sides of the polymeric film is in at least partial contact with said heat sealable layer.
5-6. (canceled)
(canceled)
11-12. (canceled)
18-28. (canceled)
A collection of multi-layered assemblies, comprising
- a plurality of multi-layered assemblies each of which comprises a carrier having opposed sides,
- a heat sealable layer disposed on at least a portion of one of said sides of the carrier, said heat sealable layer comprising a partially salt neutralized ionomer, and
- a polymeric film comprising polyurethane and having opposed sides, wherein one of said sides of the polymeric film is in at least partial contact with said heat sealable layer,
- wherein the variation in peel force among said assemblies as measured by 3 times the standard deviation as a percent of the average peel force is less than 30%.
30-46. (canceled)
A multi-layered assembly comprising:
- a carrier having opposed sides,
- a heat sealable layer disposed on at least a portion of one of said sides of the carrier,
- a polymeric film comprising a polyurethane and having opposed sides, wherein one of said sides of the polymeric film is in at least partial contact with said heat sealable layer,
- wherein said polymeric film is releasably sealed to said carrier via said heat sealable layer such that a peel force in a range of about 50 grams/inch to about 600 grams/inch is required to release the polymeric film, and
- wherein said peel force varies by less than 50 g/inch when said assembly is exposed to a temperature of 50 C for up to 24 hours.
49-50. (canceled)
A multi-layered assembly comprising:
- a carrier having opposed sides;
- a heat sealable layer disposed on at least a portion of one of said sides of the carrier, and
- a polymeric film comprising polyurethane and having opposed sides, wherein one of said sides of the polymeric film is in at least partial contact with said heat sealable layer,
- wherein said polymeric film is releasably sealed to said carrier via said heat sealable layer such that a peel force required to release the polymeric film remains below about 400 grams/inch as temperature of the assembly is maintained at 50 degrees C. for 24 hours.
54-56. (canceled)
A method of fabricating a multi-layered assembly comprising
- coating a surface of a carrier with a partially salt neutralized ionomer emulsion,
- casting a polyurethane resin on said coated surface of the carrier,
- exposing said polyurethane and ionomer coated carrier to an elevated temperature to form a releasable bond between the polyurethane and the carrier.
58-68. (canceled)
Dependencies are inferred from the claim text.