New Ultra Low Migration Solventfree Laminating Adhesive for Food Packaging, 2014 PLACE Conference

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Two-component solventfree, 100% reactive urethane laminating adhesives are used in high speed converting of film-to-film laminations for food, industrial goods and lawn and garden packaging. There are two general classes of solventfree laminating adhesives: (1) aromatic isocyanate-based and (2) aliphatic isocyanate-based. Aromatic isocyanate based adhesives cost less, but due to migration concerns are generally limited to use in non-food and low-to-medium performance food packaging. In medium-to-high performance food packaging applications requiring extremely low migration, aliphatic isocyanate-based solventfree adhesives have been successful. However, these aliphatic adhesives cost significantly more than aromatic isocyanate based adhesives.