Patent · US Expired

Rollable, single-coated hot melt adhesive film with no interlayer

US6331355A · kind A · utility

4Cited by

9References

10Claims

0Family size

Assignee

Wolff Walsrode AG · DE

Inventors

Heiko Tebbe · Dormagen, DE
Ralf Schledjewski · Walsrode, DE
Dirk Schultze · Bad Fallingbostel, DE

Key dates

Filing date	Dec 9, 1999
Grant date	Dec 18, 2001
Priority date	—
Expiry date	Dec 9, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention provides a monolayered thermoplastic hot-melt adhesive film without a separating layer which can be rolled up and unrolled without the additional use of a separating layer and in which the polymer matrix of copolyamides and/or copolyesters contains an additive combination of 0.4 wt. % to 8.0 wt. % of a spacer and 0.05 wt. % to 1.0 wt. % of a separating and lubricating agent, and optionally up to 1 wt. % of other additives, each with respect to the total mixture.

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