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US 12,366,018 B2Granted
Process for manufacturing non-woven fabric-like composite materials from shredded polymer-coated paper products and coffee grounds
AssigneeChopvalue Manufacturing Ltd
InventorDirk Harste
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Abstract
The invention relates to a process for producing non-woven fabric-like composite materials, novel non-woven fabric-like composite materials, articles made therefrom and their use. In particular the fabric-like composite materials are derived from shredded polymer-glued or polymer-coated paper products and coffee grounds as raw material.
Claims16
A process of manufacturing a non-woven composite material, the process comprising:
- (i) providing a particulate substrate S, comprising a mixture of (a) shredded polymer-glued or polymer-coated paper products and (b) coffee grounds,
- (ii) dispersing the substrate S in a dispersant to obtain a dispersion,
- (iii) adding a polymer P to the dispersion,
- (iv) adding a precipitation agent to the dispersion to afford a precipitated particle composition,
- (v) sieveing the precipitated particle composition,
- (vi) transferring the sieved precipitated material into a desired form,
- (vii) subjecting the formed material to vacuum to remove dispersant,
- (viii) pressing the formed material, and
- (ix) drying the resulting formed material to obtain a non-woven fabric material.
6 more elements
Dependencies are inferred from the claim text.