Adhesive masses based on block copolymers of structure P(A)-P(B)-P(A) and P(B)-P(A)-P(B)

US8129470B2 · kind B2 · utility

Assignee

• tesa AG · DE

Inventors

• Thilo Dollase · Hamburg, DE
• Marc Husemann · Hamburg, DE
• Bernd Lühmann · Norderstedt, DE

Key dates

• Filing date: Mar 4, 2002
• Grant date: Mar 6, 2012
• Expiry date: Feb 5, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24959
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A pressure-sensitive adhesive comprising a blend of at least two components, one of which comprises a block copolymer having at least the unit P(A1)-P(B1)-P(A1) and the second of which comprises a block copolymer having at least the unit P(B2)-P(A2)-P(B2); the blend forming an at least two-phase system.