WO2007048494A2 - Adhesif a base de lignine - Google Patents

Adhesif a base de lignine Download PDF

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Publication number
WO2007048494A2
WO2007048494A2 PCT/EP2006/009737 EP2006009737W WO2007048494A2 WO 2007048494 A2 WO2007048494 A2 WO 2007048494A2 EP 2006009737 W EP2006009737 W EP 2006009737W WO 2007048494 A2 WO2007048494 A2 WO 2007048494A2
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
adhesive according
lignosulfonate
aqueous solvent
polysaccharide
Prior art date
Application number
PCT/EP2006/009737
Other languages
German (de)
English (en)
Other versions
WO2007048494A3 (fr
Inventor
Katrin U. Schwarz
Original Assignee
Schwarz Katrin U
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 Schwarz Katrin U filed Critical Schwarz Katrin U
Priority to EP06806116A priority Critical patent/EP1940987A2/fr
Publication of WO2007048494A2 publication Critical patent/WO2007048494A2/fr
Publication of WO2007048494A3 publication Critical patent/WO2007048494A3/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J197/00—Adhesives based on lignin-containing materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J197/00—Adhesives based on lignin-containing materials
    • C09J197/005—Lignin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/26—Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00

Definitions

  • the invention relates to a classified as environmentally friendly and not harmful to health adhesive, especially for materials made of wood and cellulose, its manufacture and its use.
  • the synthetic binders or adhesives used today in wood products are of the highest quality in their mechanical and technical properties, especially in the areas of adhesive strength and resistance to water.
  • the disadvantage is that these synthetic binders or adhesives contain constituents which are resistant to adhesive, for example formaldehyde, which can cause health impairments or even illnesses.
  • These undesirable adhesive constituents usually already occur during the preparation of the adhesive and during processing, but also during the entire period of use of the article treated with the adhesive. If these objects are used in the living or working area, for example, in interiors, the people staying in these areas are particularly vulnerable. It is also problematic that these objects at the end of their life cycle not harmless energy, for example, by combustion or composting, can be supplied. The contained polluting ingredients are then released in the form of toxic emissions.
  • Natural adhesives are known from the state of the art, which damage such harmful and undesirable adhesives. Avoid substance-like components, as they occur with synthetic adhesives.
  • natural adhesives are known which are produced on the basis of lignin sulphonate.
  • Lignosulfonate is a polymer with adhesive properties, which is extracted in the pulp industry in the production of pulp in the so-called sulfite process the wood and is included as an ingredient in the sulfite waste liquor, among other wood degradation products.
  • the wood consisting of cellulose, hemicellulose and lignin is digested in a cooking chemical solution containing sulfites or hydrogen sulfites and the lignin is converted into a water-soluble form by the introduction of hydrophilic sulfur-containing groups (sulfonated).
  • the sulfonated lignin is water-soluble and also explains the technologically disadvantageous water solubility of the adhesives based on lignosulfonate known from the prior art.
  • the invention achieves this object by an adhesive which contains as components at least one polysaccharide, lignin sulfonate and an aqueous solvent or at least one polysaccharide and a lignosulfonate dissolved in an aqueous solvent.
  • the invention has recognized that the lignosulfonates and the polysaccharides are in each case water-soluble, their combination with one another makes the resulting mixture, in addition to its adhesive properties, superior to Schendgue also significantly water resistant. After curing of the prepared mixture, which can be done both with and without heat (hot or cold gluing) an adhesive bond is obtained, which withstands even direct water contact without reducing the adhesive strength.
  • adhesive refers to any substance which is suitable for bonding, that is to say bonding between two identical or different materials or materials. Usually it is a permanent connection. Suitable materials for bonding with the adhesive according to the invention are, for example, metal, glass, stone and plastic, preferably wood and cellulosic materials.
  • the adhesive according to the invention has lignin sulfonate as an essential component of the invention. It is a biopolymer with a molecular weight M w of 10-50,000, which may be present as a solution, or as a dried powder.
  • the lignosulfonate may be present as a salt, preferably calcium, magnesium and ammonium salt, more preferably as the sodium salt.
  • the adhesive of the invention no, or only has a low content of hemicellulose, for example based on the total amount of adhesive of less than 15 wt .-%, preferably less than 10 wt .-%, particularly preferably less than 2 wt .-%.
  • the adhesive strength of the adhesive according to the invention can be increased even further.
  • the adhesive according to the invention does not have to contain any hemicellulose.
  • the amount of lignosulfonate, based on the total amount of adhesive 0.5-60 wt .-% and is preferably as part of aurensubstanzsulfitablauge, for example, with a proportion of lignosulfonate in thezelensubstanzsulfi- tablauge 50-99 wt .-%, provided.
  • the adhesive contains the lignosulfonate dissolved in an aqueous solvent or the lignosulfonate is already dissolved in this solvent, wherein the amount of the aqueous solvent, based on the total amount of adhesive, is preferably 20-65 wt .-%.
  • the possibly contributed water amount of an aqueous lignosulfonate solution is already taken into account.
  • Aqueous solvent according to the present invention may be an alkali, preferably sodium hydroxide, or an acid, preferably selected from the group consisting of: formic acid, acetic acid and citric acid.
  • the adhesive contains a polysaccharide component, preferably in an amount of preferably 0.1-75% by weight, more preferably 5-70
  • Wt .-% Wt .-%, more preferably 10-50 wt .-%, particularly preferably 10-30 wt .-% based on the total amount of adhesive.
  • Polysaccharides (glycans) in the context of the present invention are starch, cellulose, pectins or else chitin and derivatives thereof, the water-soluble polysaccharides being particularly preferred.
  • native starches such as the vegetable starch amylose or the animal starch glycogen
  • chemically modified starches eg starches, starch fractions and hydrolysis products converted by etherification, esterification or selective oxidation.
  • plasticizers commonly used in the adhesives of the prior art can be completely or partially replaced by the polysaccharides.
  • the inventive adhesive contains as further components monosaccharides and / or plasticizers for adjusting the adhesive properties of the adhesive final mixture.
  • the monosaccharides may be one or more monosaccharides whose amount, based on the total amount of adhesive, is 0-15% by weight, preferably 0-10% by weight.
  • Plasticizers in the context of the present invention are substances which are added to other substances, for example resins and plastics, in order to make them more supple or elastic.
  • the plasticizer which is contained as an optional component in the adhesive according to the invention preferably in an amount of up to 30% by weight, based on the total amount of adhesive, is preferably a polyol, in particular selected from the group consisting of: ethylene glycols, glycerol and sorbitol.
  • Adhesive is adjusted to a pH of 3-12. Especially when used as a wood adhesive occur on the Holzverklebungss abolish no undesirable material impairments such as cracks or crevices.
  • An adhesive composition according to the invention may comprise, for example, the following constituents: A) 0.5-60 wt.% Ligninsulfonate or dry matter
  • the present invention furthermore relates to a process for producing the adhesive according to the invention, wherein in a first step at least one polysaccharide, lignin sulfonate and an aqueous solvent or at least one polysaccharide and a lignosulfonate dissolved in an aqueous solvent are provided, before in a second step the components in any order, but preferably first the polysaccharides are mixed with the aqueous solvent prior to mixing with the lignosulfonate component.
  • the order in the mixing process does not affect the quality of the final product. Nevertheless, the solution only leads to carbohydrate-containing substance groups at shorter times during the homogenization of the substance batch.
  • the mixing of the components is preferably carried out at a temperature of at most 100 0 C, preferably at 30-80 0 C, more preferably 50-70 0 C and using a stirrer.
  • a correspondingly low speed which may vary depending on the mixing batch, for example, at the beginning of the mixing operation to 1000 U / min, further below 700 U / min, selected and the Mischvor- and the adhesive is used before it is in a non-workable, high polymer state.
  • the adhesive of the invention cures both at room temperature (2O 0 C), as well as at elevated temperatures and under pressing conditions, as described in the introduction to the prior art for particle board adhesive, from. It is suitable as both cold and hot glue.
  • kits contain a polysaccharide-containing component, a lignosulfonate-containing component and optionally an aqueous solvent or a polysaccharide-containing component and a lignosulfonate component dissolved in an aqueous solvent.
  • an adhesive was prepared, which was prepared without Polysaccharidzusatz consisting of 25 parts by weight of a sodium lignosulfonate and 40 parts by weight of solvent, citric acid with a pH of the mixture to 3, and 10 parts by weight of glycerol.
  • the adhesive mixtures prepared according to Examples 1 to 3 were pressed according to DIN 205 with beech veneers at room temperature for 24 h and at 13O 0 C for 10 min using small glue clamps.
  • the cured samples were conditioned for 7 days in a climate chamber under normal conditions (20 0 C / 65% RH).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

La présente invention concerne un adhésif classé comme respectueux de l'environnement et non nocif pour la santé, particulièrement destiné à des matières premières à base de bois et de cellulose. Cette invention concerne aussi la production de cet adhésif et son utilisation. Ledit adhésif contient au moins un polysaccharide, un sulfonate de lignine et un solvant aqueux ou au moins un polysaccharide et un sulfonate de lignine dissous dans un solvant aqueux. Par rapport aux adhésifs connus à base de sulfonate de lignine, l'adhésif selon cette invention présente une meilleure résistance à l'eau.
PCT/EP2006/009737 2005-10-25 2006-10-09 Adhesif a base de lignine WO2007048494A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06806116A EP1940987A2 (fr) 2005-10-25 2006-10-09 Adhesif a base de lignine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005051350A DE102005051350A1 (de) 2005-10-25 2005-10-25 Kleber auf Ligninbasis
DE102005051350.6 2005-10-25

Publications (2)

Publication Number Publication Date
WO2007048494A2 true WO2007048494A2 (fr) 2007-05-03
WO2007048494A3 WO2007048494A3 (fr) 2007-11-08

Family

ID=37496658

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/009737 WO2007048494A2 (fr) 2005-10-25 2006-10-09 Adhesif a base de lignine

Country Status (3)

Country Link
EP (1) EP1940987A2 (fr)
DE (1) DE102005051350A1 (fr)
WO (1) WO2007048494A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073531A1 (fr) * 2009-12-16 2011-06-23 Teknologlan Tutkimuskeskus Vtt Adhésif, procédé de production de celui-ci et utilisations de celui-ci
US20140127491A1 (en) * 2011-06-17 2014-05-08 Saint-Gobain Adfors Binder for mineral and/or organic fiber mat, and products obtained

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2976584B1 (fr) * 2011-06-17 2014-12-12 Saint Gobain Isover Composition d'encollage pour laine minerale a base de sel d'acide lignosulfonique et d'oligosaccharide, et produits isolants obtenus.
EP3530710A1 (fr) 2018-02-23 2019-08-28 MAGNA STEYR Fahrzeugtechnik AG & Co KG Adhésif, fabrication et utilisation d'un adhésif

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047350B (de) * 1956-02-02 1958-12-24 Josef Baranyi Sulfitablaugehaltiger Leim
US2933405A (en) * 1956-06-18 1960-04-19 Ohio Commw Eng Co Dextran-sulfite liquor solids adhesives
US3395033A (en) * 1966-04-11 1968-07-30 Inca Inks Lignin base alkali-dispersible adhesive
DE2410746A1 (de) * 1973-03-06 1974-09-12 Canadian Patents Dev Verfahren und mittel zum binden von lignocullulosematerial

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1655954A1 (ru) * 1988-01-06 1991-06-15 Украинский научно-исследовательский институт огнеупоров Способ изготовлени огнеупорных циркониевых изделий
SU1735338A1 (ru) * 1990-02-05 1992-05-23 Белорусский технологический институт им.С.М.Кирова Водоактивируема клеева композици дл липкой ленты на бумажной основе
RU1807049C (ru) * 1990-08-27 1993-04-07 Научно-исследовательский институт прикладной химии Св зующее дл состава бенгальской свечи, содержащего алюминий, железо, нитрат бари
RU2034893C1 (ru) * 1991-04-17 1995-05-10 Хмельницкий технологический институт Клеевая композиция для автоматической наклейки бумажных этикеток на гидрофобные поверхности и способ ее получения

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047350B (de) * 1956-02-02 1958-12-24 Josef Baranyi Sulfitablaugehaltiger Leim
US2933405A (en) * 1956-06-18 1960-04-19 Ohio Commw Eng Co Dextran-sulfite liquor solids adhesives
US3395033A (en) * 1966-04-11 1968-07-30 Inca Inks Lignin base alkali-dispersible adhesive
DE2410746A1 (de) * 1973-03-06 1974-09-12 Canadian Patents Dev Verfahren und mittel zum binden von lignocullulosematerial

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
DATABASE CA CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; "Adhesives from sulfite waste liquor" XP002448970 gefunden im STN Database accession no. 70:88547 & CS 127 117 A (CERMAK BOJAN) 15. April 1968 (1968-04-15) *
DATABASE CA CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; "Paper adhesives" XP002448969 gefunden im STN Database accession no. 106:158228 & RO 86 381 B (INTREPRINDEREA DE HIRTIE) 25. Februar 1985 (1985-02-25) *
DATABASE CA CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; "Watetr-activatable adhesive composition for paper-supported adhesive tapes" XP002448968 gefunden im STN Database accession no. 119:74284 & SU 1 735 338 A (BRUSS T I IM.S.M.KIROVA) 23. Mai 1992 (1992-05-23) *
DATABASE WPI Week 199212 Derwent Publications Ltd., London, GB; AN 1992-094760 XP002443895 & SU 1 655 954 A (UKR REFRACTORIES RE) 15. Juni 1991 (1991-06-15) *
DATABASE WPI Week 199424 Derwent Publications Ltd., London, GB; AN 1994-198578 XP002443896 & SU 1 807 049 A1 (APPL CHEM RES INST) 7. April 1993 (1993-04-07) *
DATABASE WPI Week 199602 Derwent Publications Ltd., London, GB; AN 1996-018913 XP002443897 & RU 2 034 893 C1 (KHMELNITSKII TEKHN INST) 10. Mai 1995 (1995-05-10) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073531A1 (fr) * 2009-12-16 2011-06-23 Teknologlan Tutkimuskeskus Vtt Adhésif, procédé de production de celui-ci et utilisations de celui-ci
US20140127491A1 (en) * 2011-06-17 2014-05-08 Saint-Gobain Adfors Binder for mineral and/or organic fiber mat, and products obtained

Also Published As

Publication number Publication date
DE102005051350A1 (de) 2007-05-03
WO2007048494A3 (fr) 2007-11-08
EP1940987A2 (fr) 2008-07-09

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