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SE547187C2 - A method for manufacturing a pha dispersion coated fiberbased substrate - Google Patents

A method for manufacturing a pha dispersion coated fiberbased substrate

Info

Publication number
SE547187C2
SE547187C2 SE2330130A SE2330130A SE547187C2 SE 547187 C2 SE547187 C2 SE 547187C2 SE 2330130 A SE2330130 A SE 2330130A SE 2330130 A SE2330130 A SE 2330130A SE 547187 C2 SE547187 C2 SE 547187C2
Authority
SE
Sweden
Prior art keywords
pha
dispersion
range
broke
coating composition
Prior art date
Application number
SE2330130A
Other languages
Swedish (sv)
Other versions
SE2330130A1 (en
Inventor
Åsa Nyflött
Gisela Cunha
Kaj Backfolk
Mari Hiltunen
Original Assignee
Stora Enso Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stora Enso Oyj filed Critical Stora Enso Oyj
Priority to SE2330130A priority Critical patent/SE547187C2/en
Priority to PCT/IB2024/052115 priority patent/WO2024194712A1/en
Priority to AU2024240935A priority patent/AU2024240935A1/en
Priority to CN202480020013.7A priority patent/CN120826510A/en
Publication of SE2330130A1 publication Critical patent/SE2330130A1/en
Publication of SE547187C2 publication Critical patent/SE547187C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/28—Polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0016—Plasticisers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/38—Alcohols, e.g. oxidation products of paraffins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A method for manufacturing a dispersion coated fiber-based substrate, comprising the steps of:a) forming a fibrous web from at least broke suspension and dewatering the fibrous web to obtain a fiber-based substrate having a first and a second surface; b) forming a dispersion coating layer on the first surface by applying a dispersion coating composition comprising:50-95 wt% of dispersed PHA particles, and5-30 wt% of dissolved low molecular weight polyol dispersant which has a molecular weight in the range of 50-2000 g/mol,drying the applied dispersion coating composition to obtain a dispersion coated fiber-based substrate;wherein 1-100 wt% of the fibers of the broke suspension in a) comes from recycled PHA dispersion coated broke from the method, and wherein the broke suspension in a) comprises 0.1-20 wt% of PHA based on the total solid content of the broke suspension.

Claims (32)

1. A method for manufacturing a dispersion coated fiber-based substrate, said method comprising the steps of: a) forming a fibrous web from one or more fiber suspensions, at least one of said fiber suspensions being a broke suspension, and dewatering, and optionally drying, the fibrous web to obtain a fiber-based substrate having a first main surface and a second main surface; b) forming a dispersion coating layer on the first main surface by applying a dispersion coating composition comprising, in a liquid medium: 50-95 wt% of dispersed PHA (polyhydroxyalkanoate) particles, based on the total solid content of the dispersion coating composition, and 5-30 wt% of dissolved low molecular weight polyol dispersant, based on the total solid content of the dispersion coating composition, wherein the low molecular weight polyol dispersant is selected from the group consisting of low molecular weight polysaccharides and sugar alcohols, and combinations thereof, and has a molecular weight in the range of 50-2000 g/mol, wherein the dispersion coating composition is free from added foaming agents, such as non-polymeric or polymeric surfactants, wherein the dispersion coating composition has a total solid content in the range of 20-80 wt%, and drying the applied dispersion coating composition to obtain a dispersion coated fiber-based substrate; wherein 1-100 wt% of the fibers of the broke suspension in a) comes from recycled PHA dispersion coated broke from the method for manufacturing the dispersion coated fiber-based substrate, and wherein the broke suspension in a) comprises 0.1-20 wt% of PHA based on the total solid content of the broke suspension.2. The method according to claim 1, wherein the broke suspension in a) comprises O.1-15 wt%, preferably 0.1-10 wt%, and more preferably 0.1-5 wt%, of
2. PHA based on the total solid content of the broke suspension.
3. The method according to any one of the preceding claims, wherein the fiber- based substrate obtained in a) comprises 0.1-5 wt%, preferably O.1-2.5 wt%, and more preferably 0.1-2 wt%, of PHA based on the total solid content of the fiber- based substrate.
4. The method according to any one of the preceding claims, wherein the method comprises recycling fibers from PHA dispersion coated broke formed in the method for manufacturing the dispersion coated fiber-based substrate in the broke suspension in a).
5. The method according to any one of the preceding claims, wherein the PHA in the broke suspension in a) comes from recycled PHA dispersion coated broke from the method for manufacturing the dispersion coated fiber-based substrate.
6. The method according to any one of the preceding claims, wherein the fibrous web formed in a) is a multiply fibrous web comprising a top-ply a mid-ply and a bottom-ply, wherein the mid-ply is formed from the broke suspension.
7. The method according to any one of the preceding claims, wherein the PHA particles comprise PHA in an amount of 70-99.9 wt%, preferably in an amount of 90-99.9 wt%, based on the dry weight of the PHA particles.
8. The method according to any one of the preceding claims, wherein the PHA is selected from the group consisting of poly(3-hydroxyoctanoate) (PHO), poly(3- hydroxydecanoate) (PHD), poly(3-hydroxyhexanoate) (PHH), and poly(3- hydroxyvalerate) (PHV), po|y(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH), poly(3-hydroxybutyrate- co-4-hydroxybutyrate) (P3HB4H B), po|y(3-hydroxyoctanoate-co-S- hydroxyhexanoate) (PHOHH), poly(3-hydroxyoctanoate-co-S-hydroxydecanoate)(PHOHD), and po|y(3-hydroxyoctanoate-co-S-hydroxydodecanoate) (PHDHDD), or a combination thereof.
9. The method according to any one of the preceding claims, wherein the PHA is a PHA co-polymer.
10. The method according to any one of the preceding claims, wherein the PHA is selected from the group consisting of po|y(3-hydroxybutyrate-co-3- hydroxyvalerate) (PH BV), poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH), poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P3HB4HB), po|y(3- hydroxyoctanoate-co-3-hydroxyhexanoate) (PHOHH), po|y(3-hydroxyoctanoate- co-S-hydroxydecanoate) (PHOHD), and poly(3-hydroxyoctanoate-co-3- hydroxydodecanoate) (PHDHDD), or a combination thereof.
11. The method according to any one of the preceding claims, wherein the PHA is a medium chain length PHA, preferably a PHA having 6-14 carbon atoms per monomer unit.
12. The method according to any one of the preceding claims, wherein the PHA has a melting point in the range of 100-170 °C preferably in the range of 120-160 °C.
13. The method according to any one of the preceding claims, wherein the low molecular weight polyol dispersant has a molecular weight in the range of 50-1500 g/mol, and more preferably in the range of 50-1000 g/mol or in the range of 50-g/mol.
14. The method according to any one of the preceding claims, wherein the low molecular weight polyol dispersant is selected from the group consisting of low molecular weight polysaccharides having a degree of polymerization (DP) in the range of 2-100, preferably in the range of 2-50, and more preferably in the range of 2-
15. The method according to any one of the preceding claims, wherein the low molecular weight polyol dispersant is a sugar alcohol, preferably a sugar alcohol selected from the group consisting of sorbitol, maltitol, xylitol, mannitol, and glycerol, and combinations thereof.
16. The method according to any one of the preceding claims, the dispersion coating composition further comprising 0.01-15 wt%, preferably in the range of 0.01-10 wt%, and more preferably in the range of 0.1-5 wt%, of a rheology modifier, based on the total solid content of the dispersion coating composition.
17. The method according to claim 16, wherein the rheology modifier comprises a polymer selected from the group consisting of polysaccharides, polysaccharide derivatives, a polypeptides, polypeptide derivatives, or a combination thereof.
18. The method according to any one of the preceding claims, the dispersion coating composition further comprising 1-30 wt% of dispersed filler particles, based on the total solid content of the dispersion coating composition.
19. The method according to claim 18, wherein the filler particles are selected from the group consisting of clay, talcum, CaCOs, TiOz, AlzOa, SiOz, bentonite, fibers, phyllosilicates, or a combination thereof.
20. The method according to any one of the preceding claims, wherein the dispersion coating composition has a total solid content in the range of 30-70 wt%, preferably in the range of 40-60 wt%.
21. The method according to any one of the preceding claims, wherein the dispersion coating composition has a viscosity in the range of 50-4000 mPas, preferably in the range of 250-3500 mPas, determined according to SCAN-Pöfizßét using a Brookfield viscosimeterwith an LV-4 spindle at a rotational speed ofrpm.
22. The method according to any one of the preceding claims, wherein the dispersion coating composition has a ÅAGWR water retention value (Åbo AkademiWater retention value) of less than 250 g/m2, preferably less than 200 g/m2, and more preferably in the range of 50-1 50 g/m2, determined according to TAPPI T701pm-
23. The method according to any one of the preceding claims, wherein the liquid medium is water.
24. The method according to any one of the preceding claims, wherein the dispersion coating composition is applied by blade coating or rod coating.
25. The method according to any one of the preceding claims, wherein the dispersion coating layer is formed by applying the dispersion coating composition in two or more steps with interim drying between the steps.
26. The method according to any one of the preceding claims, wherein the fiber- based substrate is paper or paperboard. preferably paperboard.
27. The method according to any one of the preceding claims, wherein the dispersion coating layer has a grammage in the range of 5-40 g/m2, preferably in the range of 5-30 g/m2, and more preferably in the range of 5-20 g/m
28. The method according to any one of the preceding claims, wherein the method further comprises: c) forming a heat sealable liquid barrier layer on the second main surface.
29. The method according to any one of the preceding claims, wherein the dispersion coated fiber-based substrate has a water vapor transmission rate (WVTR), measured according to the standard ASTM F1249 - 20 at 50% relative humidity and 23 °C, of less than 25 g/m2/24h, preferably less than 20 g/m2/24h, and more preferably less than 17 g/m2/24h.
30. The method according to any one of the preceding claims, whereinthe dispersion coated first main surface of the dispersion coated fiber-based substrate has a COBB600 value, measured according to the standard SCAN-P 12:64, of less than 25 g/m2, preferably less than 20 g/m2, and more preferably less than 15 g/m
31. The method according to any one of the preceding claims, wherein the dispersion coated first main surface of the dispersion coated fiber-based substrate has a KIT value of at least 5, preferably at least
32. The method according to any one of the preceding claims, wherein the dispersion coated fiber-based substrate has a repulpability characterized by a reject rate, as determined according to the PTS RH 021/97 test method for Category ll products, below 20%, preferably below 10%, more preferably below 5%.
SE2330130A 2023-03-20 2023-03-20 A method for manufacturing a pha dispersion coated fiberbased substrate SE547187C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE2330130A SE547187C2 (en) 2023-03-20 2023-03-20 A method for manufacturing a pha dispersion coated fiberbased substrate
PCT/IB2024/052115 WO2024194712A1 (en) 2023-03-20 2024-03-05 A method for manufacturing a dispersion coated fiber-based substrate
AU2024240935A AU2024240935A1 (en) 2023-03-20 2024-03-05 A method for manufacturing a dispersion coated fiber-based substrate
CN202480020013.7A CN120826510A (en) 2023-03-20 2024-03-05 Method for making dispersion-coated fiber-based substrates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330130A SE547187C2 (en) 2023-03-20 2023-03-20 A method for manufacturing a pha dispersion coated fiberbased substrate

Publications (2)

Publication Number Publication Date
SE2330130A1 SE2330130A1 (en) 2024-09-21
SE547187C2 true SE547187C2 (en) 2025-05-20

Family

ID=92841075

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330130A SE547187C2 (en) 2023-03-20 2023-03-20 A method for manufacturing a pha dispersion coated fiberbased substrate

Country Status (4)

Country Link
CN (1) CN120826510A (en)
AU (1) AU2024240935A1 (en)
SE (1) SE547187C2 (en)
WO (1) WO2024194712A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2330419A1 (en) * 2023-09-28 2025-03-29 Stora Enso Oyj Polyhydroxyalkanoate coating method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094697A2 (en) * 2000-06-09 2001-12-13 The Procter & Gamble Company Biodegradable coated substrates
WO2016174116A1 (en) * 2015-04-27 2016-11-03 Eggplant S.R.L. Polyester composition and method for producing the same
US20180171559A1 (en) * 2016-12-20 2018-06-21 Michelman, Inc. Coated substrates including compostable coatings and methods for producing the same
US20200048493A1 (en) * 2018-08-13 2020-02-13 Danimer Bioplastics, Inc. Biodegradable coatings based on aqueous pha dispersions
US20220056643A1 (en) * 2020-08-21 2022-02-24 Meredian Bioplastics, Inc. Antimicrobial biodegradable compositions for food contact articles
WO2022204533A1 (en) * 2021-03-25 2022-09-29 Phaxtec, Inc. Polyhydroxyalkanoate compositions and methods of making the same
WO2022243445A1 (en) * 2021-05-21 2022-11-24 Neenah Gessner Gmbh Coated paper for use as packaging material
WO2023008960A1 (en) * 2021-07-30 2023-02-02 씨제이제일제당(주) Biodegradable coating composition, method for manufacturing same, and biodegradable article using same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094697A2 (en) * 2000-06-09 2001-12-13 The Procter & Gamble Company Biodegradable coated substrates
WO2016174116A1 (en) * 2015-04-27 2016-11-03 Eggplant S.R.L. Polyester composition and method for producing the same
US20180171559A1 (en) * 2016-12-20 2018-06-21 Michelman, Inc. Coated substrates including compostable coatings and methods for producing the same
US20200048493A1 (en) * 2018-08-13 2020-02-13 Danimer Bioplastics, Inc. Biodegradable coatings based on aqueous pha dispersions
US20220056643A1 (en) * 2020-08-21 2022-02-24 Meredian Bioplastics, Inc. Antimicrobial biodegradable compositions for food contact articles
WO2022204533A1 (en) * 2021-03-25 2022-09-29 Phaxtec, Inc. Polyhydroxyalkanoate compositions and methods of making the same
WO2022243445A1 (en) * 2021-05-21 2022-11-24 Neenah Gessner Gmbh Coated paper for use as packaging material
WO2023008960A1 (en) * 2021-07-30 2023-02-02 씨제이제일제당(주) Biodegradable coating composition, method for manufacturing same, and biodegradable article using same

Also Published As

Publication number Publication date
WO2024194712A1 (en) 2024-09-26
SE2330130A1 (en) 2024-09-21
CN120826510A (en) 2025-10-21
AU2024240935A1 (en) 2025-09-18

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