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1. WO1997027046 - METHOD TO ACHIEVE EASY-OPENING FLEXIBLE PACKAGING LAMINATES AND PACKAGING MATERIALS MADE THEREFROM

Publication Number WO/1997/027046
Publication Date 31.07.1997
International Application No. PCT/US1996/009038
International Filing Date 17.06.1996
Chapter 2 Demand Filed 20.08.1997
IPC
B32B 27/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
06as the main or only constituent of a layer next to another layer of a specific substance
B65D 75/58 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
75Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
52Details
58Opening or contents-removing devices added or incorporated during package manufacture
CPC
B29C 43/222
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
43Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
22of articles of indefinite length
222characterised by the shape of the surface
B32B 2323/043
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2323Polyalkenes
04Polyethylene
043HDPE, i.e. high density polyethylene
B32B 2323/046
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2323Polyalkenes
04Polyethylene
046LDPE, i.e. low density polyethylene
B32B 2323/10
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2323Polyalkenes
10Polypropylene
B32B 2367/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2367Polyesters, e.g. PET, i.e. polyethylene terephthalate
B32B 2377/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2377Polyamides
Applicants
  • AMERICAN NATIONAL CAN COMPANY [US]/[US]
Inventors
  • GEHRKE, Russel, P.
  • HSU, Joseph, C.
  • HAAS, David, J.
  • HODSON, Jay
Agents
  • DUNCAN, Margaret, M.
Priority Data
08/590,41025.01.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD TO ACHIEVE EASY-OPENING FLEXIBLE PACKAGING LAMINATES AND PACKAGING MATERIALS MADE THEREFROM
(FR) PROCEDE POUR FABRIQUER DES STRATIFIES POUR EMBALLAGE SOUPLES ET FACILES A OUVRIR, ET MATERIAUX D'EMBALLAGE REALISES AVEC CES STRATIFIES
Abstract
(EN)
A polymeric laminate for use in polymeric films, and packaging material and packages made therefrom, that is roughened or knurled to produce a series of nicks or cuts over substantially the entire surface area of the laminate, producing an easy-opening feature. The laminate may be a multilayer, polymeric structure that may comprise an oriented polypropylene, polyethylene terephthalate, or a biaxially oriented nylon. The packaging material of the invention may contain a sealant film, either a single layer or multilayer film, and may also comprise an intermediate layer of foil.
(FR)
L'invention concerne un stratifié en polymère constituant à utiliser dans des films polymères, ainsi que des matériaux d'emballage et des articles d'emballage réalisés avec ces stratifiés. La surface de ce stratifié est rendue irrégulière ou cannelée, de sorte qu'une série d'encoches ou de coupures soient produites sur sensiblement toute la surface du stratifié, et qu'une ouverture facile soit assurée. Le stratifié peut être une structure polymère à couches multiples comprenant un polyéthylène téréphtalate ou un polypropylène orienté, ou encore un nylon orienté biaxialement. Le matériau d'emballage de l'invention peut comporter un film d'étanchéité, qui peut avoir une ou plusieurs couches, et une couche de feuille intermédiaire.
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