Patent · US Expired

Packaging for plastics additives

US6974613B2 · kind B2 · utility

0Cited by

4References

7Claims

0Family size

Assignee

Bischof + Klein GmbH & Co. KG · DE

Inventors

Helmut Sellmeier · Lengerich, DE
Uwe Wiegand · Braunschweig, DE

Key dates

Filing date	Jan 27, 2003
Grant date	Dec 13, 2005
Priority date	—
Expiry date	Feb 9, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2826
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A packaging for an additive to be added to a plastic batch consists of a packaging film of thermomelting plastic material shaped to form a bag and a thermomelting polyolefin-based adhesive applied to the plastic film and forming closure seams for sealing the bag. The adhesive is moisture crosslinking and can be a hot melt. The thermomelting plastic material is identical to or compatible with a plastic material of the plastic batch to which the packaging and the additive are to be added.

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