Patent · US Expired

Matt biaxially stretched polypropylene film and a process for producing the same

US5501905A · kind A · utility

18Cited by

1References

7Claims

0Family size

Assignee

Wolff Walsrode AG · DE

Inventors

Anton Krallmann · Bad Fallingbostel, DE
Thomas Blum · Fond du Lac, US
Ingo Schinkel · Walsrode, DE

Key dates

Filing date	Mar 17, 1994
Grant date	Mar 26, 1996
Priority date	—
Expiry date	Mar 17, 2014

Classification

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

Abstract

This invention relates to matt, multilayered propylene films to which their matt appearance is imparted by a one-sided, coextruded layer of a polymer mixture.

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