US 2015/0283029 A1Published application

Child-resistant packaging

AssigneeBemis Company, Inc.

InventorsJennifer L. Riis, Christopher R. Jansen

Life of this patent

Estimating the term…

Loading patent…

Abstract

A child-resistant blister package having: (a) a product; (b) a multilayer lidstock; and (c) a formed blister film; and the lidstock has at least four layers: i) an inner thermoplastic heat sealable layer; ii) a first intermediate aluminum foil layer; iii) a second intermediate adhesive layer; and iv) an outer polyester or oriented nylon layer with the outer layer having a loop shaped score line therethrough, and the adhesive layer is disposed between layers (ii) and (iv); and optionally has a fifth layer (v) which is a release coating disposed within the loop shape and between layers (ii) and (iv) for manual peelable detachment of at least the outer layer (iv) from (ii) the first intermediate layer; with layer (c) having at least two compartments: (i) a first blister compartment adapted for receiving product (a); and (ii) a second blister compartment having a blister compartment film overlaying and spaced apart from a portion of the lidstock heat seal layer opposite a tab area portion of the score line in the outer layer; and wherein the second blister compartment is adapted for manual inward deformation activation of separation of the lidstock from itself along said score line tab area portion; and product (a) is hermetically sealed between (b) and (c) within said first blister compartment.

Claims17

Dependent claims

A blister package comprising:

(a) a product;
(b) a multilayer lidstock having:
i) an inner thermoplastic heat sealable layer having a thickness of from 0.10 to 1.0 mil;
ii) a first intermediate layer having a WVTR of less than 0.03 g/100 in2/24 hours at 1 atmosphere and 23° C. and having a thickness of from 0.25 to 2 mil;
iii) a second intermediate adhesive layer;
iv) an outer bite resistant layer comprising at least one of (i) a polyester layer having a thickness of at least 0.75 mil and (ii) an oriented nylon layer having a thickness of at least 0.50 mil, and said outer layer having a loop shaped score line therethrough, wherein said adhesive layer is disposed between said first intermediate layer and said outer layer;
and
(v) a release coating disposed at least within said loop shape and between said first intermediate layer and said outer layer for manual peelable detachment of said outer layer from said first intermediate layer;
and
(c) a formed blister film having at least two compartments:
(i) a first blister compartment adapted for receiving said product;
and (ii) a second blister compartment having a blister compartment film overlaying and spaced apart from a portion of said lidstock heat seal layer opposite a tab area portion of said score line in said polyester layer;
and wherein said second blister compartment is adapted for manual inward deformation activation of separation of said lidstock from itself along said score line tab area portion;
wherein said product (a) is hermetically sealed between (b) and (c) within said first blister compartment.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/243,408Filed 2 Apr 2014
Published: 8 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

A61J 1/035
For pills or tablets: blister-type containers
B32B 3/04
Characterised by features of form at particular places, e.g. in edge regions: characterised by at least one layer folded at the edge, e.g. over…
B32B 7/06
Interconnection of layers: permitting easy separation
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties