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1. WO2020133157 - LAMINATE STRUCTURES AND FLEXIBLE PACKAGING MATERIALS INCORPORATING SAME

Publication Number WO/2020/133157
Publication Date 02.07.2020
International Application No. PCT/CN2018/124683
International Filing Date 28.12.2018
IPC
B32B 7/12 2006.1
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
7Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
04Interconnection of layers
12using interposed adhesives or interposed materials with bonding properties
B32B 27/08 2006.1
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
08of synthetic resin of a different kind
B32B 27/30 2006.1
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
30comprising vinyl resin; comprising acrylic resin
B32B 27/32 2006.1
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
32comprising polyolefins
B32B 37/12 2006.1
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
37Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
12characterised by using adhesives
CPC
B29C 2948/9258
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
2948Indexing scheme relating to extrusion moulding
92Measuring, controlling or regulating
92504Controlled parameter
9258Velocity
B29C 2948/92933
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
2948Indexing scheme relating to extrusion moulding
92Measuring, controlling or regulating
92819Location or phase of control
92933Conveying, transporting or storage of articles
B29C 48/10
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
03characterised by the shape of the extruded material at extrusion
09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
10flexible, e.g. blown foils
B29C 48/21
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
16Articles comprising two or more components, e.g. co-extruded layers
18the components being layers
21the layers being joined at their surfaces
B29C 48/92
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
92Measuring, controlling or regulating
B29C 55/06
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
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
06parallel with the direction of feed
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventors
  • LIAO, Guihong
  • XU, Jingyi
  • SANDKUEHLER, Peter Hermann Roland
  • GALATIK, Thomas
  • BUSTILLO, Luis Gerardo Zalamea
Agents
  • WU, FENG & ZHANG
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LAMINATE STRUCTURES AND FLEXIBLE PACKAGING MATERIALS INCORPORATING SAME
(FR) STRUCTURES STRATIFIÉES ET MATÉRIAUX D'EMBALLAGE FLEXIBLES RENFERMANT CELLES-CI
Abstract
(EN)
Embodiments of the present disclosure are directed to laminates comprising a uniaxially oriented first multilayer film comprising ethylene-based polymer, wherein the uniaxially oriented first multilayer film has a ratio of percent elongation at break in the cross direction to percent elongation at break in the machine direction of at least 2 to 1; and a biaxially oriented second multilayer film adhered to the uniaxially oriented first multilayer film and comprising an ethylene-based polymer, wherein the biaxially oriented second multilayer film has a ratio of percent elongation at break in the machine direction to percent elongation at break in the cross direction of at least 2 to 1.
(FR)
La présente invention concerne, dans des modes de réalisation, des stratifiés comprenant un premier film multicouche à orientation uniaxiale comprenant un polymère à base d'éthylène, le premier film multicouche à orientation uniaxiale ayant un rapport d'allongement en pourcentage à la rupture dans la direction transversale sur un allongement en pourcentage à la rupture dans la direction de la machine d'au moins 2 pour 1 ; et un second film multicouche à orientation biaxiale collé au premier film multicouche à orientation uniaxiale et comprenant un polymère à base d'éthylène, le second film multicouche à orientation biaxiale ayant un rapport d'allongement en pourcentage à la rupture dans la direction de la machine sur un allongement en pourcentage à la rupture dans la direction transversale d'au moins 2 pour 1.
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