Steven J Sargeant

US Patent:

20220234803, Jul 28, 2022

Filed:

May 26, 2020

Appl. No.:

17/614855

Inventors:

- Elizabethtown KY, US
Steven Sargeant - Elizabethtown KY, US
Sudhir Naik - Noida, IN
Sanjeev Gupta - Noida, IN
Dipak Boral - Noida, IN
Pramod Sirsamkar - Noida, IN

Assignee:

Flex Films (USA), Inc. - Elizabethtown KY

International Classification:

B65D 75/36
B32B 27/36
B32B 27/08
B32B 15/09
B32B 15/20
B32B 37/06
B65B 9/04
B32B 27/20

Abstract:

Embodiments of the disclosure relate to a blister package having a laminate structure that is heat-sealable to a lacquer layer on strain-hardened aluminum foil. The blister package includes a lid layer comprising a strain-hardened aluminum foil, a lacquer layer on a sealing surface of the strain-hardened aluminum foil and a laminate structure sealed directly to the lacquer layer. The laminate structure includes a multilayer film and a plurality of wells formed therethrough. The multilayer film includes a first formable layer of a thermoplastic material and a sealing layer of a copolyester material. The sealing layer overlies the first formable layer and has an outer surface opposite the first formable layer. The sealing layer has crystallinity from 5% to 20% as measured by differential scanning calorimetry (DSC). The outer surface of the sealing layer is sealed directly against the lacquer layer.