Case story database

Search for Successfully Implemented Alternatives

You can use the free text search function to find information in the case story database. Most suitable are: substance name and other substance identifier (EC- and CAS-number). You can refine your search after first entry for sector-, function- and process-categories. The case studies are meant to serve as source of inspiration and ideas for substitution. The alternatives are constantly being developed further. We therefore recommend that you to check in each individual case whether an alternative is suitable for your applications and purposes. If you are aware of any other relevant information that is not mentioned in the current case story, please contact SUBSPORTplus.

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Glues from renewable resources for panel board manufacture

Urea-formol adhesives are largely used in the wood products industries. Construction materials are the main source of formaldehyde emissions in the indoor environment. Therefore, it is necessary to find new natural alternatives to produce wood adhesives. The project allowed developing and validating extraction process for tannins, based on aqueous extraction, and lignin. These extracted compounds were successfully inserted in adhesives to develop a formula without formaldehyde. The mechanical properties of the panel board produced with this new adhesive responded to European standard.

Formaldehydfreie Bindemittel für die Herstellung von Holzwerkstoffen

Harnstoff-Formaldehyd Klebstoffe sind in der holzverarbeitenden Industrie weit verbreitet. Baumaterialien stellen nach wie vor eine wesentliche Quelle von Formaldehydabgabe in Innenräumen dar. Es ist deshalb notwendig, alternative formaldehydfreie Bindemittel für Holzwerkstoffe zu entwickeln. Das französische Projekt "Panneaux verts" entwickelte einen Extraktionsprozess für Tannine, der auf Flüssig-Extraktion und Lignin basiert. Diese extrahierten Verbindungen wurden erfolgreich in Klebstoffe eingebracht und damit formaldehydfreie Kleber entwickelt. Die mechanischen Eigenschaften von Holzfaserplatten, die mit dem neuen Klebstoff hergestellt wurden, entsprachen der europäischen Norm.

The substitution of diffusible raw materials in the UV hardening varnishes for wood furniture

Danish furniture manufacturers use lacquers that cure by means of ultraviolet radiation as the most frequent surface treatment of wooden furniture. A shift towards monomers and acrylates with a higher molecular weight means that the acute toxicity of the UV lacquers is reduced. The monomer and binder replacements could be performed without considerable technical or financial consequences for the varnish manufacturer as well as for the end user.

A wood treatment product completely free from heavy metals, halogenated and phosphorus compounds. Gives flame retardant properties and protects against rot fungus.

In order to protect wooden material against rot-fungi, biocides such as copper, chromium and arsenic, are commonly applied through vacuum-pressure impregnation. These biocides affect not only rot-fungus, but most living creatures being close to the treated material. OrganoWood is a wood-treatment product, completely free from biocides, that renders the wood inaccessible for rot fungi by binding to the surface of the wood fibres. OrganoWood also confers good flame retardant properties to the treated wood without use of halogenated and phosphorus containing compounds.

Ein Holzschutzmittel ohne Schwermetalle, halogenierte und Phosphor-Verbindungen. Verleiht flammhemmende Eigenschaften und schützt gegen Fäule.

Um Holzwerkstoffe gegen Fäulnis zu schützen, werden normalerweise Biozide wie Kupfer, Chrom und Arsen durch Vakuum-Druck-Imprägnierung aufgebracht. Diese Biozide beeinträchtigen nicht nur die Fäulniserreger, sondern auch die meisten anderen Lebewesen in der Nähe des behandelten Materials. OrganoWood ist ein von Bioziden freies Holzschutzprodukt, das Holz für Fäule unzugänglich macht, indem es an die Oberfläche der Holzfasern bindet. OrganoWood verleiht dem behandelten Holz auch gute flammhemmende Eigenschaften, ohne dass halogenierten und phosphorhaltige Stoffen verwendet werden.

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