Patent · US Expired

Adhesive packaging tape

US6706392B2 · kind B2 · utility

2Cited by

12References

11Claims

0Family size

Assignee

tesa AG · DE

Inventors

Wolfgang David · Aachen, DE
Stefan Rober · Hamburg, DE

Key dates

Filing date	Sep 30, 2002
Grant date	Mar 16, 2004
Priority date	—
Expiry date	Sep 30, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2891
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A solvent-free adhesive tape with a film based on polyolefins and an adhesive layer which is applied at between 10 and 45 g/m2 and is prepared with a mixture comprising an adhesive acrylic dispersion acquires improved adhesive properties and increased water insensitivity by virtue of the fact that the mixture comprises a second, special acrylic dispersion, the quantitative ratio between the first acrylic dispersion and the second acrylic dispersion being between 99:1 and 90:10 and the second acrylic dispersion comprising the following components:65-84% by weight of ethyl acrylate units15-34% by weight of methyl methacrylate units0.5-2% by weight of acrylic acid units0.1-1% by weight of propyleneimine units.

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