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US 2022/0213323 A1Published application
Formulations and products to replace single-use plastics and polystyrene with bio-benign materials such as agricultural wastes
AssigneeNutjobs
InventorsPaul Ray Kephart, John Warner, Samuel Ellman
Life of this patent
Estimating the term…
Abstract
The present invention provides methods for preparing the nut waste sheet composites from a nut waste component and one or more binders.
Claims18
A cured nut waste sheet composite, the cured nut waste sheet composite is prepared by the following steps:
- (a) providing a nut waste component selected from the group consisting of nut shells, nut hulls, and a combination of nut shells and nut hulls;
- (b) drying the nut waste component or adjusting the nut waste component to a pH of 5.0 to 8.0 then drying or sterilizing the nut waste component;
- (c) grinding the nut waste component to a size ranging from about greater than 500 μm to less than about 1000 μm;
- (d) contacting about 5 wt % to 40 wt % of the nut waste component from step (c) with 60.0 to 95.0 wt % one or binder selected from a group consisting of polyhydroxybutyrate (PHB), polyhydroxyalkanoate (PHA), polylactic acid (PLA), guayule, natural rubber latex, bentonite, an anionic starch, hyaluronic acid, triethyl citrate, and combinations thereof;
- (e) heating the mixture to a temperature from about 80° C. to about 190° C. for about 5 minutes;
- (f) extruding the heated mixture into a sheet form;
- and
- (g) cooling the sheet.
5 more elements
A cured nut waste sheet composite, the cured nut waste sheet composite is prepared by the following steps:
- (a) providing a nut waste component selected from the group consisting of nut shells, nut hulls, and a combination of nut shells and nut hulls;
- (b) drying the nut waste component or adjusting the nut waste component to a pH of 5.0 to 8.0 then drying or sterilizing the nut waste component;
- (c) grinding the nut waste component to a size ranging from about greater than 500 μm to less than about 1000 μm;
- (d) contacting about 40 wt % to 70 wt % of the nut waste component from step (c) with 30.0 to 60.0 wt % of at least one or more binders selected from a group consisting of polyhydroxybutyrate (PHB), polyhydroxyalkanoate (PHA), polylactic acid (PLA), guayule, natural rubber latex, bentonite, an anionic starch, hyaluronic acid, triethyl citrate, and combinations thereof;
- (e) heating the mixture to a temperature from about 80° C. to about 190° C. for about 5 minutes;
- (f) extruding the heated mixture into a sheet form;
- and
- (g) cooling the sheet.
5 more elements
A cured nut waste sheet composite, the cured nut waste sheet composite is prepared by the following steps:
- (a) providing a nut waste component selected from the group consisting of nut shells, nut hulls, and a combination of nut shells and nut hulls;
- (b) drying the nut waste component or adjusting the nut waste component to a pH of 5.0 to 8.0 then drying or sterilizing the nut waste component;
- (c) grinding the nut waste component to a size ranging from about greater than 500 μm to less than about 1000 μm;
- (d) contacting about 70 wt % to 95 wt % of the nut waste component from step (c) with 5.0 to 30.0 wt % of at least one or more binders selected from a group consisting of polyhydroxybutyrate (PHB), polyhydroxyalkanoate (PHA), polylactic acid (PLA), guayule, natural rubber latex, bentonite, an anionic starch, hyaluronic acid, triethyl citrate, and combinations thereof;
- (e) heating the mixture to a temperature from about 80° C. to about 190° C. for about 5 minutes;
- (f) extruding the heated mixture into a sheet form;
- and
- (g) cooling the sheet.
5 more elements
Dependencies are inferred from the claim text.