Patent · US Expired

Stretched polypropylene films having good surface slip

US5077129A · kind A · utility

19Cited by

3References

10Claims

0Family size

Assignee

Wolff Walsrode AG · DE

Inventors

Ingo Schinkel · Walsrode, DE
Ulrich Reiners · Neuenkirchen, DE
Anton Krallmann · Bad Fallingbostel, DE

Key dates

Filing date	Feb 22, 1991
Grant date	Dec 31, 1991
Priority date	—
Expiry date	Feb 22, 2011

Classification

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

Abstract

The new polypropylene film contains a polymer based on polyisobutyl methacrylate and polymethyl methacrylate as antiblocking agent.

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