Patent · US Active

Adhesive tape and its use

US8268442B2 · kind B2 · utility

2Cited by

8References

20Claims

0Family size

Assignee

tesa SE · DE

Inventors

Kai Ellringmann · Hamburg, DE
Stephan Zollner · Hamburg, DE
Thorsten Krawinkel · Hamburg, DE
Stefan Wulf · Rheydt, DE

Key dates

Filing date	Nov 15, 2006
Grant date	Sep 18, 2012
Priority date	—
Expiry date	Jul 28, 2030

Classification

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

Abstract

Adhesive tape suitable for flying splice of flat web material having non-polar surfaces which has been wound to form rolls, the adhesive tape comprising an upper self-adhesive composition (1, 11), a splittable carrier (2, 12) and a lower self-adhesive composition (3, 13) on the bottom face of the splittable carrier (2, 12), wherein as upper self-adhesive composition (1, 11) a silicone-free self-adhesive composition is used which has a bond strength to a polyethylene substrate of 1.5 N/cm or more (measurement method tesa test A) and an initial tack corresponding to a rolling distance of 200 mm or less (measurement method tesa test D), and as lower self-adhesive composition (3, 13) a self-adhesive composition is used which has a bond strength to a polyethylene substrate of 1.5 N/cm or more (measurement method tesa test A) and a complex viscosity of 10,000 Pa·s or more at 1 rad/s and 40° C. (measurement method tesa test F).

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