Patent · US Expired

Film for transfer metallizing

US5110670A · kind A · utility

22Cited by

8References

27Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Siegfried Janocha · Wiesbaden, DE
Gunter Schloegi · Kelkheim, DE
Lothar Bothe · Mainz, DE
Guenther Crass · Taunusstein, DE

Key dates

Filing date	Jun 14, 1989
Grant date	May 5, 1992
Priority date	—
Expiry date	Jun 14, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31913
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A biaxially stretch-oriented film, suitable for the process of transfer metallizing, which comprises a base layer coextruded with covering layers on either side thereof and comprising an inert admixture is disclosed. The three layers are formed of polyolefin and the base layer comprises an additive which migrates from the base layer into the covering layers. The base layer contains the inert admixture in the form of finely divided particles, which partially protrude from the base layer and are completely enveloped by the covering layers. At least one of the two outer surfaces of the covering layers displays, at least in partial areas, an increased roughness attributable to the particles protruding from the base layer.

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