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Manufacture Process of Adhesives For Metals, Composed oy Polymeric Resins

Organization:Unicamp Innovation Agency, 13083-970, BR
I.P. Brief:The present invention describes the fabrication process of hot-melt adhesives for metallic surfaces application. Such adhesives are solid resins at room temperature and they melt when heated. Once heated on metallic surfaces, they produce ultra-resistant connections, resistance against flexion and traction, in dry or humid environments.
Summary of I.P.:At present, it is difficult to glue metals and polymers, especially aluminum and steel. Often, the metallic surface must be previously treated, in order to remove external layers, make the surface rough and adequate it for resin penetration. The present technology allows ultra adherence between metal and polymer. The technology is suitable for the Materials Industry.
Patent:PI0404738-9 (Brazil)
Keywords:Adhesive, metal, steel, aluminum, polymer.
Primary Industry:Materials
Specific Market:Wide market, including among others: automotive, space.
Market Size:Historically, it has been seen that adhesives are replacing almost every mechanical fixation systems in industrial application. The market is estimated in $ 9,8 billion, only in USA, with a 4% of growing/ year.
State of the Art:Nowadays, steel and aluminium have been connected by mechanical fixation systems or by polymeric adhesives (especially hot melt adhesives), which generally employ solvents. However, the available solutions don’t guarantee a sufficient adherence and resistance against flexion and traction, in dry or humid environments.
Competition:Not detected.
Figures of Merit:- The fabrication process is cheaper, since it does not use ethylene; - The glue process is quicker; - Better stability; - Better resistant to tension and flexion, in dry or humid environments; - Good intermolecular interaction between the resin and metallic surface; - Green chemistry.
Tech.  Obstacles:- Scale-up; - Customization to the target market.
Market Obstacles:- Target market definition, since there are many. - Customization to the target market.
Patent Landscape:Related patents: KR8101284, EP1431363, US4654389, US4769406, US4352749, US4338414.
Publications:- Teixeira-Neto E., Kaupp, G., Galembeck, F. Latex Particle Heterogeneity and Clustering in Films. Journal of Physical Chemistry B, v.107, n.51, p.14255-14260, 2003. - Rippel, M.M., Costa, C.A.R., Galembeck, F., Natural Rubber Latex Modification by Sodium Polyphosphate: a SPM Study on the Improved Latex Adhesion to Glass Sheet. Polymer, v.45, n.10, p.3367-3375, 2004.
Research Team:Fernando Galembeck – PhD: Interface chemistry (California Davis, U.C.D. United States) > 40 years of experience in: - Adherence and adhesives; - Polymeric latexes; - Chemistry of materials; - Nanoparticles synthesis and properties.


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