Binder and a packaging laminate comprising the binder
AssigneeTetra Laval Holdings & Finance S.A.
InventorsTorsten Olofsson, Bertrand Jaccoud
Life of this patent
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Abstract
A binder for a packaging laminate, which binder comprises a polyolefin grafted with an unsaturated alkoxysilane. According to the invention, the grafted polyolefin is blended with a non-grafted polyolefin, in said binder, whereby the flexibility of the binder is improved, which in turn provides for an increased number of adhesion points when the binder is used in a binding layer in the packaging laminate. The invention also relates to packaging laminate (10, 30, 40, 50) comprising the binder and to a packaging container (60) formed form the packaging laminate.
Claims22
A packaging laminate comprising a film covered with silicon oxide;
- a binding layer formed from a binder comprising a polyolefin grafted with an unsaturated alkoxysilane, wherein said grafted polyolefin is blended with a non-grafted polyolefin;
- and a paper or paperboard bulk layer,
- wherein the binding layer is arranged to be in direct contact with the silicon oxide and the paper or paperboard bulk layer, and to bond the silicon oxide to the paper or paperboard bulk layer.
Dependencies are inferred from the claim text.