Patent · US Expired

Acrylate hot melt-based self-adhesive composition

US6613870B1 · kind B1 · utility

14Cited by

17References

8Claims

0Family size

Assignee

tesa AG · DE

Inventors

Christian Harder · Hamburg, DE
Andreas Kummer · Hamburg, DE
Klaus Biethahn · Norderstedt, DE
Robert Tiburg · Hamburg, DE

Key dates

Filing date	Apr 24, 1997
Grant date	Sep 2, 2003
Priority date	—
Expiry date	Apr 24, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2826
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Acrylate hot melt-based self-adhesive composition, characterized by K value of at least 60, in particular 65-80, and obtainable by concentrating or devolatilizing a solution of such a composition in a devolatilizing extruder to give a system which can be processed as a hot melt.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.