Description: General Information: By using technology completely new to the adhesives industry it should be possible to develop systems which will demonstrate improved properties and performance, with the additional advantages of being safe in use and having much reduced impact on the environment. The approaches proposed are: 1. Elimination of organic solvent based adhesives, (especially chlorinated hydrocarbons); - via an emulsification process, new to the adhesives industry, solvent based adhesives will be dispersed in water without the use of emulsifiers/soaps or other protective/stabilising colloids usually reducing the performance of such systems. The organic solvent will be removed and reused in a closed style; - using a unique aqueous emulsion polymerisation technology it is possible to incorporate functional groups into/around the polymer particles capable of enhancing the adhesion properties and thus eliminating the use of rather toxic crosslinking agents, such as isocyanates, aziridines etc. 2. Alternative crosslinking mechanisms for 100 per cent systems(hot melt and liquid); - several novel alternative crosslinking mechanisms (oxazolines/oxazolidines, silanated polymers, metal-chelates) much safer than commonly used isocyanates and others, with all their known disavantages, will be introduced and optimised. Targeted areas of application are the automotive industry and its suppliers, footwear , foam padding and upholstery, and furniture industries, as well as the paper and packaging sector. Achievements: During the optimisation of the solvent based adhesives to be emulsified at Jowat it turned out that these new formulations appear to be very promising adhesives where no subsequent emulsification process is necessary in order to achieve environmental improvements and to fulfil the requirements of Jowat's targeted markets. These formulations are named Super High Solids (SHS) due to the fact that the solid content is about 80 per cent. These adhesives are hardly inflammable under application conditions for upholstery and mattresses manufacturing and therefore are targeted to substitute chlorinated hydrocarbon based adhesives. In addition, the extremely high solid content reduces the required space for packaging and transportation drastically plus helping the customer to easily fulfil regulations concerning maximum workplace concentrations with standard installations. A new manufacturing process for the production of water-borne adhesives has been developed. This technique involves the emulsification of specially formulated solvented adhesives in water, followed by solvent removal. The contact adhesives produced using this innovative approach possess excellent application characteristics and stability without the need for additives. Adhesives based on the peroxide cure of liquid rubbers have been produced in this project at Evode for metal-to-metal bonding in the automotive industry.
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Tags: Schaumstoff ? Gummi ? Organisches Lösungsmittel ? Chlorkohlenwasserstoff ? Lösemittelrecycling ? Peroxid ? Heterozyklen ? Lösungsmittel ? Polymer ? Seife ? Umweltauswirkung ? Zusatzstoff ? Klebstoff ? Kolloid ? MAK-Wert ? Papier ? Papierherstellung ? Organisches Material ? Verfahrensoptimierung ? Fahrzeugindustrie ? Automobilindustrie ? Gewässergrund ? Holzindustrie ? Toxische Substanz ? Toxizität ? Chemische Zusammensetzung ? Umweltfreundliches Produkt ? Verfahrenstechnik ? Verpackungsindustrie ? Verpackungsmaterial ? Wirkstoff ? Ersatzstoff ? Chemische Reaktion ? Adhäsion ? Standardisierung ? Entwässerung ? Verkehr ? Produktdesign ? Möbel ? Anwendungstechnik ? Wasserlöslichkeit ? Isocyanat ? Chelat ? Alternativtechnologie ? Klebetechnik ? Polymerisation ? Reaktionsmechanismus ? Schadstoffelimination ? Emulgierung ? Substitutionseffekt ? aerospace technology ? industrial manufacture ? materials technology ? Emulsion ?
Region: Nordrhein-Westfalen
Bounding boxes: 5.8662503507406045° .. 9.461478369136085° x 50.323011952581965° .. 52.53144342795586°
License: Creative Commons Namensnennung-keine Bearbeitung-Nichtkommerziell 4.0
Language: Englisch/English
Last harvest: 29.05.2026 00:05
Time ranges: 1993-12-01 - 1997-03-31
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