Packaging Materials With Enhanced Thermal-Insulating Performance
AssigneeMeadWestvaco Corporation
InventorsVladislav Babinsky, Sven Samuel Arenander, Dobridge Celeste Newman, Bruce W. Babcock, David H. Hawes
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Abstract
A packaging material including a paper-based substrate having a first surface and a second surface and a thermal-insulating composition on the first surface of the substrate, wherein the thermal-insulating composition includes, based on the total weight of the composition, filler in an amount of 20% to 70% by weight, organic binder in an amount of 15% to 70% by weight, and plasticizer in an amount of 0.5% to 10% by weight.
Claims66
A packaging material comprising:
- (A) a paper-based substrate including a first surface and a second surface;
- and
- (B) a thermal-insulating composition on the first surface of the substrate, wherein the thermal-insulating composition comprises, based on total weight of the composition:
- (a) filler in an amount of 10% to 70% by weight;
- (b) organic binder in an amount of 15% to 70% by weight;
- and
- (c) plasticizer.
A method for preparing a packaging material comprising the steps of:
- (I) providing a paper-based substrate comprising a first surface and a second surfaces;
- (II) applying a thermal-insulating composition onto the first surface of the paper-based substrate to form a coated structure, the thermal-insulating composition comprising, based on total weight of the composition:
- (a) filler in an amount of 10% to 70% by weight,
- (b) organic binder in an amount of 15% to 70% by weight,
- (c) plasticizer, and
- (d) water;
- and
- (III) drying the coated structure to reduce water content of the thermal-insulating composition to within a range of 10% to 15% by weight based on total weight of the thermal-insulating composition.
A container, comprising:
- (A) a first layer including a first surface;
- (B) a second layer including a second surface;
- and
- (C) a thermal-insulating foamed material positioned between the first surface and the second surface.
Dependencies are inferred from the claim text.