Packaging laminate material

Details Packaging laminate material Packaging laminate material

B - Operations, Transporting

32

B

B32B 27/10 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2080243

A packaging laminate material comprising a paper substrate and a polyester resin layer provided on at least the inmost surface side, wherein the polyester resin comprises specific dicarboxylic acid base units and specific dihydroxy compound base units and if necessary constituent units derived from a polycarboxylic acid of 3 or more valences and constituent units derived from polyglycol of 3 or more valences, and has a high heat- sealing strength. The packaging laminate material has small decrease in the heat-sealing strength even after the laminate material is subjected to a hot water treatment or a hot hydrogen oxide treatment, and is excellent in scent (odor) retention properties.

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