Transparent polypropylene film for candy twist wrapping

US4786533A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Guenther Crass · Taunusstein, DE
• Lothar Bothe · Mainz, DE

Key dates

• Filing date: Oct 3, 1986
• Grant date: Nov 22, 1988
• Expiry date: Oct 3, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A transparent propylene polymer film, produced by coextrusion and coated on one or both sides, for candy twist wrapping, wherein the propylene polymer base layer additionally contains a low molecular hydrocarbon resin in an amount of 10 to 40% by weight, based on the total weight of propylene polymer and resin, the base layer has a modulus of elasticity of not less than 3,000 N/mm.sup.2, measured in both directions of molecular orientation, and each top layer contains a polydialkylsiloxane in an amount of 0.3 to 1.5% by weight, based on the weight of the top layer.