Meadwestvaco Corporation

Westvaco Corporation

David Hillis Hawes

Sven Samuel Arenander

Vladislav Babinsky

Bruce W Babcock

Dobridge Celeste Newman

Ralph Scott Peterson

Mohan Sasthav

Kenneth John Bryden

Haralambos Cordatos

A thermo-insulating packaging material including a paper-based substrate layer, a paper-based top layer and a thermal-insulating composition positioned between the paper-based substrate layer and the paper-based top layer, the thermal-insulating composition including a filler, an organic binder and a plasticizer.

Packaging materials with enhanced thermal-insulating performance

A method for preparing a thermo-insulating packaging material including steps of providing a first paper-based substrate, applying a fluid thermal-insulating composition onto the first paper-based substrate, the thermal-insulating composition including a filler, an organic binder, a plasticizer, and water, applying a second paper-based substrate over the thermal-insulating composition such that the thermal-insulating composition is positioned between the first paper-based substrate and the second paper-based substrate to form a structure, and drying the structure.

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.

A tear resistant laminated comprised of a paper or paperboard substrate, and adhesive layer, a tear resistant layer secured to the adhesive layer, and a heat-sealable material. The tear resistant material has a a tear strength as measured by the Elmendorf tear propagation test of at least about 300 grams of force in both machine and cross direction.

Tear resistant heat sealable packaging structure

This invention relates to a laminate substrate. An exemplary embodiment comprises a paperboard layer with a heat sealable layer secured substantially adjacent to one side of the paperboard layer. A co-extruded layer is secured substantially adjacent to the other side of the paperboard layer. The co-extruded layer has five layers: a heat sealable layer secured to the paperboard layer, a first tie layer secured adjacent to the heat sealable layer, a semi-crystalline nylon layer secured adjacent to the first tie layer, a second tie layer secured adjacent to the semi-crystalline nylon layer, and a heat sealable layer secured adjacent to the second tie layer. A fourth heat sealable layer is secured adjacent to the co-extruded layer.

Laminate substrate with oxygen barrier properties

This invention relates to paperboard materials for carrying static cling vinyl products for transport to end users. Such structures of this type, generally, provide good adhesion for the static cling vinyl product, but allow the vinyl product to be peeled off easily.

Paperboard carrier for static cling applications

In a method of incorporating fibers in a rubber matrix, an improved fiber pretreatment is disclosed which comprises mixing from 3% to 15% by weight vinyl pyridine latex with a fiber-in-water mixture of essentially delignified hardwood fibers which have not been subjected to post-delignification drying, said mixture having a consistency of from 10% to 40% solids, subsequently expressing water and drying the treated fiber.

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Clifton Forge, VA, United States of America

David Hillis Hawes