B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 3/06 (2006.01) B65D 5/62 (2006.01) C08F 10/00 (2006.01) C08J 3/28 (2006.01)
Patent
CA 2260071
A method of improving heat-seals for polyolefin polymers which are coated onto a paperboard substrate. The method obviates the need for use of a curable bonding agent. The materials are exposed to high energy radiation prior to formation of the heat seal to induce cross-linking of the polymer and thereby increase the average molecular weight of same.
La présente invention concerne un procédé visant à améliorer les thermosoudages pour polymères polyoléfiniques appliqués sur un support en carton. Le procédé permet d'éviter l'utilisation d'un agent de liaison durcissable. Avant la formation du thermosoudage, les matériaux sont exposés à un rayonnement à grande énergie, ce qui produit la réticulation du polymère et augmente ainsi le poids moléculaire moyen de celui-ci.
International Paper Company
Moffat & Co.
LandOfFree
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