US 12,281,229 B1
Acid treatment method for making bioderived wearable film
Abm Sharif Hossain, Riyadh (SA); Mohammed Saad Aleissa, Riyadh (SA); Hassan Ahmed Rudayni, Riyadh (SA); Naif M. A. Alotaibi, Riyadh (SA); and Mohammed Ibrahim Alghonaim, Riyadh (SA)
Assigned to IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed by IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed on Oct. 15, 2024, as Appl. No. 18/915,838.
Application 18/915,838 is a continuation of application No. 18/786,746, filed on Jul. 29, 2024, granted, now 12,157,824.
Application 18/786,746 is a continuation of application No. 18/647,895, filed on Apr. 26, 2024, granted, now 12,098,285, issued on Sep. 24, 2024.
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 3/00 (2006.01); A41D 19/00 (2006.01); C08J 5/18 (2006.01); C08K 5/00 (2006.01); C08L 1/00 (2006.01); C08L 27/06 (2006.01); C08L 97/02 (2006.01); C09B 61/00 (2006.01); C08K 5/053 (2006.01)
CPC C08L 97/02 (2013.01) [A41D 19/0055 (2013.01); C08J 5/18 (2013.01); C08K 5/0041 (2013.01); C09B 61/00 (2013.01); A41D 19/00 (2013.01); C08J 2397/02 (2013.01); C08J 2401/02 (2013.01); C08J 2403/02 (2013.01); C08J 2429/10 (2013.01); C08J 2499/00 (2013.01); C08K 5/053 (2013.01); C08K 2201/018 (2013.01); C08L 1/00 (2013.01); C08L 3/00 (2013.01); C08L 27/06 (2013.01); C08L 2201/06 (2013.01); C08L 2203/16 (2013.01); C08L 2205/035 (2013.01); C08L 2205/16 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An acid treatment method of producing a bio-derived wearable film, the method comprising
washing palm stem pith with a sodium hypochlorite solution; then
blending the palm stem pith and water to form a raw plant mixture;
heating the raw plant mixture to form a cooked plant mixture;
acid treating the cooked plant mixture with an aqueous inorganic acid selected from the group consisting of nitric acid, sulfuric acid, and phosphoric acid at 30 to 60° C. to form a treated plant mixture;
mixing the treated plant mixture with a starch, a cellulose, a synthetic polymer, a plant hydrogel, glycerin, and a dye to form an uncured mixture;
adjusting a pH of the uncured mixture to a pH of 6.5 to 8.5;
heating the uncured mixture to 125 to 175° C. to form a cured mixture; and
drying the cured mixture at 60 to 100° C. to form the bio-derived wearable film.