Mixtures of starch and ethylene and vinyl acetate copolymer and hot melt adhesives containing them

摘要

Mixtures of starch and ethylene and vinyl acetate copolymer and hot melt adhesives containing them. The mixtures of starch and ethylene and vinyl acetate copolymer (EVA copolymer) comprise natural and/or modified starch in a proportion between 1% and 90% by volume and EVA copolymer in a proportion of between 99% and 10% by volume. These mixtures have mechanical and bonding properties similar to those of charged polymer systems, as a result of which they are useful in the manufacture of hot melt adhesives. The new adhesives respect the environment, are economical, biodegradable and have high rigidity in bonding to the substrate. These adhesives are useful for bonding many materials (paper, textile, polyolefins), sealing cracks and fissures and repairing moulds.