Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2015125101) A METHOD FOR MANUFACTURING A PACKAGING MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/125101 International Application No.: PCT/IB2015/051268
Publication Date: 27.08.2015 International Filing Date: 19.02.2015
IPC:
B32B 27/10 (2006.01) ,B32B 37/15 (2006.01) ,B29C 47/02 (2006.01) ,B32B 27/32 (2006.01) ,B65D 65/40 (2006.01) ,C08L 23/04 (2006.01) ,B29L 9/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
06
as the main or only constituent of a layer next to another layer of a specific substance
10
of paper or cardboard
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
37
Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
14
characterised by the properties of the layers
15
with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
02
incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
32
comprising polyolefins
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
CONTAINERS 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
65
Wrappers or flexible covers; Packaging materials of special type or form
38
Packaging materials of special type or form
40
Applications of laminates for particular packaging purposes
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
04
Homopolymers or copolymers of ethene
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
L
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
9
Layered products
Applicants:
STORA ENSO OYJ [FI/FI]; P.O. 309 FI-00101 Helsinki, FI
Inventors:
NEVALAINEN, Kimmo; FI
RÄSÄNEN, Jari; FI
RIBU, Ville; FI
Agent:
KLING, Susanna; SE
Priority Data:
1450204-119.02.2014SE
Title (EN) A METHOD FOR MANUFACTURING A PACKAGING MATERIAL
(FR) PROCÉDÉ DE FABRICATION D'UN MATÉRIAU D'EMBALLAGE
Abstract:
(EN) The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base (1) of paper or board and an extruded polymer layer (2) containing a blend of (i) 0 to 25 wt-% of a branched low-density polyethylene (LDPE)with a lower melt viscosity and (ii) 75 to 90 wt-% of a linear low-density polyethylene (LLDPE) with a higher melt viscosity. The packaging material of the invention comprises multilayer coatings, e.g.an adhesive innermost and a heat-sealable outermost layer (2, 4) of said blend and a vapour barrier middle layer (3) of at most 90 wt- % of high density polyethylene (HDPE). The layers (2, 3, 4) are brought and adhered to the fibrous base (1) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.
(FR) L'invention concerne un matériau d'emballage enduit de polymère, un procédé de fabrication de celui-ci, et des produits, tels un gobelet jetable, réalisés à partir du matériau. Le matériau d'emballage comprend une base fibreuse (1) de papier ou de carton et une couche polymère extrudée (2) contenant un mélange de (i) 0 à 25 % en poids d'un polyéthylène à basse densité ramifié (LDPE) avec une viscosité à l'état fondu plus basse et (ii) 75 à 90 % en poids d'un polyéthylène linéaire à basse densité (LLDPE) avec une viscosité à l'état fondu plus élevée. Le matériau d'emballage de l'invention comprend des revêtements multicouches, par exemple, une couche interne d'adhésif et une couche externe thermoscellable (2, 4) dudit mélange et une couche intermédiaire de barrière à la vapeur (3) comprenant au maximum 90 % en poids de polyéthylène haute densité (HDPE). Les couches (2, 3, 4) sont amenées et collées sur la base fibreuse (1) par coextrusion. Pour maximiser la renouvelabilité des matériaux, le polyéthylène haute densité et le polyéthylène linéaire à basse densité tels qu'utilisés pour la structure sont d'origine biologique.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)