	US 12,366,018 B2
	Process for manufacturing non-woven fabric-like composite materials from shredded polymer-coated paper products and coffee grounds
Dirk Harste, Hamburg (DE)
Assigned to Chopvalue Manufacturing Ltd., Vancouver (CA)
Filed by CHOPVALUE MANUFACTURING LTD., Vancouver (CA)
Filed on Sep. 9, 2022, as Appl. No. 17/941,258.
Claims priority of application No. 21195673 (EP), filed on Sep. 9, 2021.
Prior Publication US 2023/0074931 A1, Mar. 9, 2023
Int. Cl. B29B 9/00 (2006.01); B29C 41/16 (2006.01); B29C 41/50 (2006.01); B29C 71/02 (2006.01); C08J 5/04 (2006.01); D04H 1/425 (2012.01); D04H 1/4274 (2012.01); D04H 1/65 (2012.01); D21B 1/08 (2006.01); D21C 5/02 (2006.01); B29K 105/26 (2006.01)

CPC D04H 1/65 (2013.01) [C08J 5/045 (2013.01); B29K 2105/26 (2013.01); C08J 2300/22 (2013.01); C08J 2300/30 (2013.01); D10B 2401/041 (2013.01)]

16 Claims

1. 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.