Patent · US Active

Coextrusion film and method of mixing

US10414134B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

MONDI CONSUMER PACKAGING TECHNOLOGIES GMBH · DE

Inventors

Henner Sollmann · Gronau, DE
Matthias PERICK · Ahaus, DE
Marcel Grossmann · Essen, DE
Herbert Bader · Sharon, US

Key dates

Filing date	Dec 19, 2014
Grant date	Sep 17, 2019
Priority date	—
Expiry date	Mar 30, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24975
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A coextrusion film has a core layer made of thermoplastic elastomer, and first and second outer layers sandwiching the core layer. The outer layers are each formed from a polymer having a lower elasticity than the thermoplastic elastomer of the core, each have a layer thickness of less than 15 μm, each have a density of less than 0.800 g/cm3, and each have more than 500 gas-filled cells per 1 cubic millimeter of volume.

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