Support material with a cohesive adhesive substance

US6812170B1 · kind B1 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Peter Himmelsbach · Buxtehude, DE
• Andreas Kummer · Hamburg, DE
• Wolfgang Meyer-Ingold · Hamburg, DE

Key dates

• Filing date: Jun 3, 2002
• Grant date: Nov 2, 2004
• Expiry date: Jun 3, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2746
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A backing material for medical use with a pressure-sensitively adhesive coating on at least one side, having an ultimate tensile stress strength of at least 800 cN/cm and a bond strength to the reverse of the backing of not less than 10 cN/cm, the latex-free, cold seal composition applied to the backing material comprising one or more block copolymers having a styrene content of less than 65% by weight and having a tan &dgr; of less then 0.4 at a temperature of 25° C. and a frequency of 100 rad/s.