Flexible heated planar element

US9560697B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Monika Junghans · Hamburg, DE
• Bernd Dietz · Herzogenaurach, DE
• Frank Domann · Uetersen, DE
• Udo Dominikat · Glücksburg, DE
• Klaus Keite-Telgenbüscher · Hamburg, DE
• Ute Ellringmann · Hamburg, DE

Key dates

• Filing date: Jul 22, 2009
• Grant date: Jan 31, 2017
• Expiry date: Apr 17, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2852
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A double-sidedly self-adhesive planar element which is intrinsically heatable in a self-regulating way and at the same time has a particularly high flexibility. The planar element has a layer sequence of a posistor heating layer, a contacting layer and an adhesive layer, the contacting layer being a two-dimensional perforate contacting element which within the planar element is therefore present as a contacting element which has not been applied to a backing. Also disclosed is an adhesively bonded assembly of a bonding substrate and a planar element of the aforesaid kind, a method of producing a planar element of the aforesaid kind, and a method of using a planar element of the aforesaid kind for heating an adhesively bonded assembly.