3D-FORMABLE SHEET MATERIAL

摘要

The present invention relates to a 3D-formable sheet material, a process for the preparation of a 3D-formed article, the use of a cellulose material and at least one particulate inorganic filler material for the preparation of a 3D-formable sheet material and for increasing the stretchability of a 3D-formable sheet material, the use of a 3D-formable sheet material in 3D-forming processes as well as a 3D-formed article comprising the 3D-formable sheet material according.

主权项

1. A 3D-formable sheet material comprising
a) a cellulose material in an amount from 5 to 55 wt.-%, based on the total dry weight of the 3D-formable sheet material, wherein the cellulose material is a cellulose material mixture comprising
i) nanofibrillated cellulose and/or microfibrillated cellulose in an amount of ≧55 wt.-%, based on the total dry weight of the cellulose material mixture, andii) cellulose fibres in an amount of ≦45 wt.-%, based on the total dry weight of the cellulose material mixture,
and the sum of the amount of the nanofibrillated cellulose and/or microfibrillated cellulose and the cellulose fibres is 100 wt.-%, based on the total dry weight of the cellulose material mixture, and b) at least one particulate inorganic filler material in an amount of ≧45 wt.-%, based on the total dry weight of the 3D-formable sheet material, wherein the sum of the amount of the cellulose material and the at least one particulate inorganic filler material is 100.0 wt.-%, based on the total dry weight of the cellulose material and the at least one particulate inorganic filler material.