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1. WO2022026899 - DOUBLE-WALL PAPERBOARD CONTAINERS HAVING AQUEOUS BARRIER COATINGS

Publication Number WO/2022/026899
Publication Date 03.02.2022
International Application No. PCT/US2021/044015
International Filing Date 30.07.2021
IPC
D21H 11/04 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
02Chemical or chemomechanical pulp
04Kraft or sulfate pulp
B32B 29/00 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
29Layered products essentially comprising paper or cardboard
B65D 3/22 2006.1
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
3Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
22with double walls; with walls incorporating air-chambers; with walls made of laminated material
B65D 81/38 2006.1
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
81Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
38with thermal insulation
D21H 19/38 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper; Coating material
36Coatings with pigments
38characterised by the pigments
D21H 19/40 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper; Coating material
36Coatings with pigments
38characterised by the pigments
40siliceous, e.g. clays
CPC
B31B 50/747
BPERFORMING OPERATIONS; TRANSPORTING
31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
50Making rigid or semi-rigid containers, e.g. boxes or cartons
74Auxiliary operations
742Coating; Impregnating; Waterproofing; Decoating
747Coating or impregnating blanks or webs
B32B 2250/02
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
2250Layers arrangement
022 layers
B32B 2250/26
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
2250Layers arrangement
26All layers being made of paper or paperboard
B32B 2255/12
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
2255Coating on the layer surface
12on paper layer
B32B 2255/26
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
2255Coating on the layer surface
26Polymeric coating
B32B 2255/28
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
2255Coating on the layer surface
28Multiple coating on one surface
Applicants
  • WESTROCK MWV, LLC [US]/[US]
Inventors
  • PANG, Jiebin
  • MCNEAL, Timothy R.
  • MELTON, Natasha G.
  • KNAPP, Brian K.
Agents
  • COHEN, Neil G.
Priority Data
63/059,34831.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DOUBLE-WALL PAPERBOARD CONTAINERS HAVING AQUEOUS BARRIER COATINGS
(FR) RÉCIPIENTS EN CARTON À DOUBLE PAROI COMPORTANT DES VERNIS DE PROTECTION AQUEUX
Abstract
(EN) A coated paperboard container includes an inner paperboard substrate, an outer paperboard substrate, a first aqueous barrier coating located on the inner paperboard substrate, and a second aqueous barrier coating located on the outer paperboard substrate. The inner paperboard substrate and the outer paperboard substrate are coupled with an adhesive. The first aqueous barrier coating and the second aqueous barrier coating include a pigment and a binder and the first aqueous barrier coating is heat sealable.
(FR) L'invention concerne un récipient en carton revêtu comprenant un substrat de carton interne, un substrat de carton externe, un premier vernis de protection aqueux situé sur le substrat de carton interne et un second vernis de protection aqueux situé sur le substrat de carton externe. Le substrat de carton interne et le substrat de carton externe sont reliés à un adhésif. Le premier vernis de protection aqueux et le second vernis de protection aqueux comprennent un pigment et un liant et le premier vernis de protection aqueux est thermoscellable.
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