Compostable cellulose-based paper for gas barrier in packaging material

US12116731B2 · kind B2 · utility

Assignee

• AHLSTROM OYJ · FI

Inventors

• Noel Cartier · Jardin, FR
• Hervé Planchard · Crach Coat, FR

Key dates

• Filing date: Nov 6, 2020
• Grant date: Oct 15, 2024
• Expiry date: Jul 2, 2041

Classification

• Technology area (CPC —): General

Abstract

This invention relates to a compostable cellulose-based paper having an oxygen transmission rate of less than 10 cm3/(m2 day), when determined at 23° C. and 50% relative humidity, the compostable cellulose-based paper comprising a continuous cellulosic fiber matrix that comprises native cellulosic fibers and non-fibrous cellulosic material, wherein the content of the non-fibrous cellulosic material in the continuous cellulosic fiber matrix is of from 15 to 50 wt. %.