Bemis Company, Inc.

Kevin D Glaser

Sam Edward Wuest

Ayomide O Odusanya

John F Negus

A thermoformed packaging unit is produced from a thermoformable sheet that has a printed pigment deposit located generally in a central position between the first and second rigid components. The packaging unit has only a low level of pigment distortion even when thermoformed to a draw ratio greater than 4.

Printed sheet for thermoformed packaging

A peelable package is described. The package comprises a first sealant layer comprising low density polyethylene and a first contaminant and a second sealant layer comprising polyethylene polymer, such as high-density polyethylene, low density polyethylene, ethylene alpha-olefin copolymer or blends of such, and a second contaminant. The first contaminant and the second contaminant are selected from the group consisting propylene/ethylene copolymer with ethylene content from about 0.1 mol % to about 5 mol %, polypropylene homopolymer, butene/ethylene copolymer and polybutene homopolymer. The first contaminant of the first sealant layer may be the same as or different than the second contaminant of the second sealant layer. Also described are various embodiments of the first sealant layer, the second sealant layer and the peelable seal that is formed between the first sealant layer and the second sealant layer.

Peelable package

A multilayered sheet is described. The sheet comprises a first layer comprising a polyolefin having a melting temperature, a storage modulus (G) greater than 100,000 psi (690 MPa) at ambient temperature, and a glass transition temperature less than ambient temperature; and a second layer comprising a polymer having a glass transition temperature greater than ambient temperature.

Growing community of inventors

Appleton, WI, United States of America

Kevin D Glaser