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US 2026/0097389 A1Published application
Cellulose-based absorbent material and process for its production
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsAli Harlin, Lauri Hauru, Harri Setälä
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Abstract
The present invention relates to a process for producing a cellulose-based biodegradable superabsorbent material, suitable for use in applications such as wet wipes, disposable packaging, hygiene products, medical devices and a vast variety of other technical applications requiring a combination of high absorption and water hold-up. The invention also relates to the thus obtained material.
Claims15
A process for producing a biodegradable absorbent material, the process comprising:
- providing a cellulose raw material,
- hydroxypropylating and cationizing the cellulose raw material to form a chemically functionalized material having a degree of substitution (DS) of <0.5,
- fluidizing the chemically functionalized material to form a fibrillated gel-like material, and
- drying the fibrillated gel-like material to obtain a cellulose-based biodegradable absorbent product.
1 more element
Dependencies are inferred from the claim text.