Patent · US Expired

Multi-layer film

US5399396A · kind A · utility

17Cited by

10References

17Claims

0Family size

Assignee

Exxon Chemical Patents, Inc. · US

Inventors

Stefan B. Ohlsson · Wespelaar, BE
Philippe De Cambourg · Brussels, BE
Willy J.J. Leysen · Meerhout, BE

Key dates

Filing date	Aug 26, 1993
Grant date	Mar 21, 1995
Priority date	—
Expiry date	Aug 26, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2852
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Multi-layered films are disclosed which have a barrier layer and at least one seal layer. The seal layer is made with a copolymer of ethylene and ethylenically unsaturated ester. The seal layer is radio frequency (RF) sealable and the seal layer has an anti-block matted surface. The matted seal layer surface permits a lower slip and anti-block additive level which improves RF sealing and heat sealing.

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