3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Stephen J Galick

Albert I Everaerts

Kenneth D Wilson

Richard L Peloquin

Kenneth Peacock

James E Sax

A vinyl graphic marking film or label coated with a pressure sensitive acrylic adhesive designed to achieve high or permanent adhesion to polymeric low energy surfaces is disclosed. In addition to good adhesion to low energy surfaces, the graphic marking film or label may have microperforated or micro-rough edges which initiate tearing when removal is attempted. The article maintains flexibility and film strength for easy fabrication in graphic marking film or label manufacture.

Pressure sensitive adhesives for use on low energy surfaces

Acrylate copolymer pressure sensitive adhesives (PSAs) which incorporate relatively small amounts of a plasticizer are disclosed. The resulting PSAs exhibit improved low temperature performance and minimal effect on other properties, when used as adhesives for graphic marking films. The adhesive system has been found to allow the graphic marking film to be applied at temperatures as low as 20.degree. F. (-7.degree. C.) and to improve the ability of the film to be applied to a substrate without trapping air between the marking film and the substrate. The adhesive system of the marking film also demonstrates resistance to tenting around the compound curved surfaces of rivet heads and corrugations typical of truck trailer sides.

Pressure sensitive adhesives for use in low temperature conditions

Polymer blend useful in making release liners, especially for reflective sheeting, comprises:

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Oakdale, MN, United States of America

Stephen J Galick