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As we all know, 550 is the most common silane coupling agent variety, can be used in printing and dyeing auxiliaries, viscosity enhancers and many other fields. In the field of food packaging, 550 is used in coating, bonding and other fields. Recently, the European Union and other countries have approved 550 as additives for food contact materials, and China's relevant administrative departments are also seeking opinions on this. At present, China packaging federation has forwarded the relevant notice, and is seeking feedback from the industry, and the relevant results will be fed back to the national food safety risk assessment center, successfully passed, the application of 550 amino silane in food contact materials will be officially recognized, and obtain many new market opportunities!