EP3034693A1 - Papierbasiertes flachmaterial - Google Patents

Papierbasiertes flachmaterial Download PDF

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Publication number
EP3034693A1
EP3034693A1 EP15165119.7A EP15165119A EP3034693A1 EP 3034693 A1 EP3034693 A1 EP 3034693A1 EP 15165119 A EP15165119 A EP 15165119A EP 3034693 A1 EP3034693 A1 EP 3034693A1
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EP
European Patent Office
Prior art keywords
composite material
paper
material according
particles
surface layer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP15165119.7A
Other languages
English (en)
French (fr)
Other versions
EP3034693B1 (de
Inventor
Lubomir Lapcik
Barbora Lapcikova
Radek Zboril
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PALACKEHO, University of
Univerzita Palackeho V Olomouci
Original Assignee
PALACKEHO, University of
Univerzita Palackeho V Olomouci
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Publication date
Application filed by PALACKEHO, University of, Univerzita Palackeho V Olomouci filed Critical PALACKEHO, University of
Priority to PL15165119T priority Critical patent/PL3034693T3/pl
Publication of EP3034693A1 publication Critical patent/EP3034693A1/de
Application granted granted Critical
Publication of EP3034693B1 publication Critical patent/EP3034693B1/de
Active legal-status Critical Current
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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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—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
    • B65D81/00—Containers, 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
    • B65D81/34—Containers, 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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—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
    • B65D81/00—Containers, 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
    • B65D81/34—Containers, 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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, 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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • 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
    • D21H19/36—Coatings with pigments
    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; Derivatives thereof
    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52—Additives of definite length or shape
    • 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
    • D21H27/10—Packing paper

Definitions

  • the present invention relates to a modification of paper-based materials for applications in packaging, in particular during microwave heating.
  • the quantity of packaging material production grows exponentially worldwide.
  • the materials based on cellulose, essentially paper, have the highest quantity in production.
  • the generaly known paper applications change towards new technical fields, e.g. structured foils with phase inclusions, microheterogenic foil materials with visual signalization (wetness, microbe presence, enzyme, etc.), foil materials with specific biological activity (intracellular chemical information systems, control systems for transport flow regulation, immobilization layers of specific cultures, etc.), foil materials for economic ayay of agricultural production, foil and dispersive materials for ecological applications.
  • Paper is a product made by felting of fine plant fibres in aqueous dispersion on a web. Surface paper mass is approximately up to 150 g/m 2 . Paper exceeding this surface mass is called carton, and above 250 g/m 2 board.
  • Papers can be divided to graphical papers, used for different kinds of printmaking and writting, wrapping papers, used to protect different kinds of goods, technical papers, used in technical practices, and special papers for special technical applications. From the paper production point of view, it can be divided into two basic phases: paper pulp preparation, including defibering, grinding, filling, gluing and coloring, and paper pulp processing, using a paper machine. During the paper pulp preparation, cellulose fibres are machined, which leads to their structural changes, e.g. fiber dimension changes, increase in active surface of fibers and swelling of fibres. Individual fibres undergo phases of defibering, spinning, grinding, ceremoniization and homogenization.
  • the paper machine is a complex technological device, comprising a head box, web, pressing and drying parts.
  • gluing presser In order to obtain a constant quality, paper pulp must be spread over the web of the paper machine evenly (quantity and speed) along its whole width. Once the paper pulp spreads over the web, water is removed from it.
  • the head box contains paper pulp with 0.6 % of dry mass, while by the end of the web the dry mass content is about 50 %.
  • After water removal of a paper sheet on the web of the paper machine more water is being removed by pressing, generally in several consecutive pressers with gradually increasing pressures. Drying part removes water residues and produces paper with dry-mass of about 95 %.
  • coating of paper is often required. Coating is performed directly in the paper machine by gluing pressers. This process is followed by calendering, which gives the paper its required smoothness and thickness. Winding of paper is the last operation during paper production using paper machine. It might be followed by cutting into sheets, grading, wrapping and weighting.
  • the subject of the present invention is a paper-based composite planar material, which contains cellulose fibers and filler particles, selected from kaolin, kaolinite, TiO 2 , Al 2 O 3 and the mixtures thereof, of size in the range of from 50 nm to 200 ⁇ m, preferably of size from 50 nm to 5 ⁇ m, more preferably from 0.5 ⁇ m to 5 ⁇ m.
  • the filler particles content is in the range of from 5 to 65 % (w/w).
  • Filler particles are preferably deposited on the surface of the cellulose fibers. This is achieved by an addition of colloid dispersion of nano/micro-particles of the filler, based on kaolinite, TiO 2 , Al 2 O 3 , SiO 2 and/or kaolin, into a dispersion of paper pulp, which is based on cellulose pulp, during the preparation procedure.
  • the described material has significantly better values of vapor, water and oil permeability.
  • a polymeric surfactant of the type of polyoxyglycol preferably of an weight average molecular mass from 5 kDa to 1.8 MDa.
  • the composite material may further contain refining additives based on acrylate dispersions or vinyl acetate, preferably in the range of from 0.001 to 20 % (w/w), to enable modulation of strength and wettable characteristics.
  • the composite material can further contain a surface layer containing a mixture of at least one hydrophilic polymer, preferably a cellulose derivative, more preferably hydroxyethyl cellulose or carboxymethyl cellulose, of the weight mean molecular mass from 10 kDa to 1.5 MDa, with iron oxide, aluminium oxide, titanium oxide and/or silicon oxide particles.
  • Said metal oxide may contain the metal in various oxidation states (for example Fe 2 O 3 , Fe 3 O 4 , FeO, FeO 2 , Al 2 O 3 , TiO 2 , SiO 2 ).
  • Starch might be used instead of the hydrophilic polymer.
  • Metal oxide particles are individually dispersed in the surface layer, and ensure the antimicrobial properties related to following photochemical, microwave or plazmochemical generation of active forms of oxygen.
  • metal oxide particles might be present in the surface layer in the amount of from 0.1 to 15 % (w/w) relative to the dry mass of the composite material.
  • the surface layer might be solidified by physical or chemical procedures by the addition of cross-linking agent, thermally or plasmachemically (for example by corona treatment or microwave plasma).
  • cross-linking agent for example by corona treatment or microwave plasma.
  • divinyl sulfone, glutaraldehyde and others might be used as cross-linking agents, in concentrations in the range of from 0.01 to 7 % (w/w), and optionally other known procedures might be used.
  • the surface layer might further contain a photochemically active substance enabling to monitor sterility changes visually by color changes, which is particularly preferable for example in food-processing and food-storing applications.
  • the invention further contains a packaging material for microwave applications, which contains the composite material according to the present invention.
  • the present invention also relates to use of the composite material for microwave applications and for food-processing and food-storing applications.
  • the present invention further encompasses a method for preparing the composite material, wherein a colloid dispersion of nano/micro-particles of the filler, based on kaolinite, TiO 2 , Al 2 O 3 , SiO 2 and/or kaolin, is added into a dispersion of paper pulp based on cellulose pulp, and the resulting mixture is placed on a wire (paper web).
  • the colloid dispersion is stabilized by a surfactant, for example a polymeric surfactant of the type of polyoxyglycol, preferably of a weight average molecular mass from 5 kDa to 1.8 MDa.
  • refining additives based on acrylate dispersions or vinyl acetate can be added to the mixture.
  • the composite material may be further coated with a surface layer containing a mixture of at least one hydrophilic polymer, preferably a cellulose derivative, more preferably hydroxyethyl cellulose or carboxymethyl cellulose, of the weight mean molecular mass from 10 kDa to 1.5 MDa, with iron oxide, aluminium oxide, titanium oxide and/or silicon oxide particles.
  • Said metal oxide may contain the metal in various oxidation states (for example Fe 2 O 3 , Fe 3 O 4 , FeO, FeO 2 , Al 2 O 3 , TiO 2 , SiO 2 ).
  • Starch might be used instead of the hydrophilic polymer.
  • the surface layer might be solidified by physical or chemical procedures by the addition of cross-linking agent, thermally or plasmachemically (for example by corona treatment or microwave plasma).
  • the preparation procedure of the composite material is based on classical paper technologies, where an additional element (a colloidal dispersion of filler nano/micro particles based on kaolinite, TiO 2 , Al 2 O 3 , SiO 2 and kaolin in a concentration range of from 2 to 65 % (w/w) and of an exactly defined mean particle diameter in a range of from 50 nm to 5000 nm) is added to the system of paper dispersion on the basis of cellulose pulp.
  • the filler nano/micro particles are stabilized electrostatically, eventually sterically, for example by a polymeric auxiliary preparation addition, based on amphoteric polymeric polyoxyglycol type surfactant (e.g. polyethylene oxide (PEO)) of the mean molecular mass in a range of from 5 kDa to 1.8 MDa and in a concentration range of from 0.0001 to 12.0 % (w/w) of the mass of the dispersion.
  • PEO polyethylene oxide
  • the dispersion treated by the above-described method is further mixed with paper pulp and deposited on a paper web.
  • a selective coverage of individual cellulose fibers by filler particles of exactly defined distribution of particle sizes is achieved, enabling formation of a complex nano-structured layer in a cross-section of the final paper sheet.
  • common further paper processing is applied, including pressing and other common paper processing procedures.
  • a coating procedure takes place, using a water soluble dispersion of cellulose derivatives (preferably hydroxyethyl cellulose, carboxymethyl cellulose) of the mean molecular mass in a range of from 10 kDa to 1.5 MDa mixed with nanoparticles of iron, aluminium or silicium oxides of variable oxidation stages or combinations thereof (variable mass ratio lies in the range of from 0.01 to 30 % (w/w)).
  • the water soluble dispersion of hydrophile polymers might be replaced by a starch dispersion (e.g. Perlsize or Perlcoat (Lyckeby Amylex)).
  • the paper coating procedure according to Example 2 its solidification is then performed using physical or chemical procedures with the addition of a suitable cross-linking agent.
  • the solidification is performed thermally or plasmachemically (e.g. by corona treatment or microwave plasma).
  • Divinylsulphon, glutaraldehyde etc. in concentrations in a range of from 0.01 to 7 % (w/w) might be used as cross-linking agents, or, alternatively, other known procedures.
  • Fig. 6 shows the influence of a degree of paper filling (expressed as a kaolin concentration within a working dispersion) on the critical times t 1 and t 2 .
  • the critical time t 1 is not influenced by the filler concentration.
  • the last monitored parameter was the size of filler particles (kaolin).
  • the summary of the results is in Fig. 7 .
  • the granulometry of particles does not influence the surface roughness of the sample (t 1 ), related to the technological procedure of paper preparation.
  • t 1 surface roughness of the sample
  • t 2 critical time
  • the most suitable layer seems to be a layer of dispersed iron oxide (Fe 3 O 4 , magnetite), or eventually Fe 2 O 3 or other metal oxides in different oxidation states, which are deposited on the surface of the above mentioned paper, i.e. a composite of cellulose/filler, forming a homogeneous distribution of magnetite nano particles.
  • Such layer contains a solidified layer of hydrophilic polymer of a defined molar mass, which is further solidified by physical or chemical procedures in order to exhibit exactly defined swelling characteristics when exposed to moisture. This ensures the ability of selective surface wrinklage of the above described sandwich structure paper/coating, influencing the ability of microwave radiation absorption by this system.
  • Coated and filled papers can find their applications mainly in packaging of food used for microwave heating, e.g. roasted corn, pizza, ready-to-cook food, prepared meals, etc.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
EP15165119.7A 2014-12-17 2015-04-24 Papierbasiertes flachmaterial Active EP3034693B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15165119T PL3034693T3 (pl) 2014-12-17 2015-04-24 Kompozytowy materiał płaski na bazie papieru

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2014-30459U CZ29098U1 (cs) 2014-12-17 2014-12-17 Kompozitní planární materiál na bázi celulózy

Publications (2)

Publication Number Publication Date
EP3034693A1 true EP3034693A1 (de) 2016-06-22
EP3034693B1 EP3034693B1 (de) 2018-08-08

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Country Status (3)

Country Link
EP (1) EP3034693B1 (de)
CZ (1) CZ29098U1 (de)
PL (1) PL3034693T3 (de)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804656A (en) * 1972-02-22 1974-04-16 Engelhard Min & Chem Pigment dispersions and use thereof
US4391833A (en) * 1975-09-04 1983-07-05 International Paper Company Method of making and using heat resistant resin coated paperboard product and product thereof
EP0437946A2 (de) 1989-12-20 1991-07-24 Rexam Packaging Limited Bandförmiges Verpackungsmaterial mit Barriereeigenschaften
US5320672A (en) * 1991-12-17 1994-06-14 Whalen Shaw Michael Associatively dispersed pigments and coatings containing said pigments
EP0642989A1 (de) 1993-09-01 1995-03-15 Rexam Packaging Limited Sperrfilm für Mikrowellensuszeptor
US6066375A (en) * 1997-04-10 2000-05-23 Fort James Corporation Coated paperboard and paperboard containers having a microwave interactive layer which emits none or very low amounts of benzene in microwave applications
WO2003080932A1 (en) * 2002-03-25 2003-10-02 Timson Oy Fibrous web and process for the production thereof
JP2010001041A (ja) 2008-06-19 2010-01-07 Snow Brand Milk Prod Co Ltd 加熱調理用容器
US7842162B1 (en) * 2005-03-14 2010-11-30 Louisiana Tech University Foundation, Inc. Layer-by-layer nanocoating for paper fabrication
WO2012059650A2 (en) * 2010-11-05 2012-05-10 Nordkalk Oy Ab Process for manufacturing paper and board
CN202295622U (zh) 2011-09-28 2012-07-04 郭锡虎 新型微波爆米花包装袋结构
CA2867598A1 (en) * 2012-04-18 2013-10-24 Nalco Company Controllable filler prefloculation using a dual polymer system
EP2684999A1 (de) * 2012-07-13 2014-01-15 Omya International AG Schlämme mit hohem Feststoff- und geringem viskosem wässrigen Anteil in calciumcarbonathaltigen Materialien mit verbesserter rheologischer Stabilität bei erhöhter Temperatur

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804656A (en) * 1972-02-22 1974-04-16 Engelhard Min & Chem Pigment dispersions and use thereof
US4391833A (en) * 1975-09-04 1983-07-05 International Paper Company Method of making and using heat resistant resin coated paperboard product and product thereof
EP0437946A2 (de) 1989-12-20 1991-07-24 Rexam Packaging Limited Bandförmiges Verpackungsmaterial mit Barriereeigenschaften
US5320672A (en) * 1991-12-17 1994-06-14 Whalen Shaw Michael Associatively dispersed pigments and coatings containing said pigments
EP0642989A1 (de) 1993-09-01 1995-03-15 Rexam Packaging Limited Sperrfilm für Mikrowellensuszeptor
US6066375A (en) * 1997-04-10 2000-05-23 Fort James Corporation Coated paperboard and paperboard containers having a microwave interactive layer which emits none or very low amounts of benzene in microwave applications
WO2003080932A1 (en) * 2002-03-25 2003-10-02 Timson Oy Fibrous web and process for the production thereof
US7842162B1 (en) * 2005-03-14 2010-11-30 Louisiana Tech University Foundation, Inc. Layer-by-layer nanocoating for paper fabrication
JP2010001041A (ja) 2008-06-19 2010-01-07 Snow Brand Milk Prod Co Ltd 加熱調理用容器
WO2012059650A2 (en) * 2010-11-05 2012-05-10 Nordkalk Oy Ab Process for manufacturing paper and board
CN202295622U (zh) 2011-09-28 2012-07-04 郭锡虎 新型微波爆米花包装袋结构
CA2867598A1 (en) * 2012-04-18 2013-10-24 Nalco Company Controllable filler prefloculation using a dual polymer system
EP2684999A1 (de) * 2012-07-13 2014-01-15 Omya International AG Schlämme mit hohem Feststoff- und geringem viskosem wässrigen Anteil in calciumcarbonathaltigen Materialien mit verbesserter rheologischer Stabilität bei erhöhter Temperatur

Also Published As

Publication number Publication date
PL3034693T3 (pl) 2019-01-31
CZ29098U1 (cs) 2016-02-01
EP3034693B1 (de) 2018-08-08

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