Acid-Processed Palm Wearable Film
Official patent title
Acid treatment method for making bioderived wearable film
Arabic title: طريقة معالجة حمضية لتصنيع غشاء حيوي المنشأ قابل للارتداء
Invention
Invention
Problem
Many disposable wearable films rely heavily on petroleum-derived polymers and can also present breathability, skin-comfort, allergy, and waste-management concerns.
Why it matters
A film incorporating biological feedstocks could broaden material options for wearable barriers, provided its protection, skin compatibility, durability, and end-of-life behavior are independently established.
Approach
The method acid-hydrolyzes palm-stem pith, blends it with starch, cellulose, a synthetic polymer, plant hydrogels, glycerin, and a flower-derived dye, then cures and dries the mixture into a film.
Who may benefit
Potential beneficiaries include wearable-film and glove developers, bio-based materials laboratories, date-palm processors, protective-product manufacturers, and polymer-formulation researchers.
Potential value
The formulation combines palm-derived cellulose, plant hydrogels, glycerin, and natural dye with a controlled acid-treatment and curing sequence, while defining water absorption and crack-test properties.
Background
Background
Wearable films such as gloves are used as protective interfaces in medical, industrial, and other settings. Conventional films are often made from petroleum-derived materials and may be difficult to degrade after disposal. Tight, poorly ventilated gloves can also contribute to sweating, itching, or discomfort, while glove powders may dry the skin and some users have material allergies. The patent proposes incorporating undried date-palm pith, plant gels, starch, cellulose, glycerin, and a botanical dye into a film that still contains a defined synthetic-polymer fraction.
Technology overview
Technology overview
Palm-stem pith is washed with sodium hypochlorite, blended with water, and pressure-heated at 125–175 °C. The cooked material is treated at 30–60 °C with nitric, sulfuric, or phosphoric acid; one embodiment uses 80% sulfuric acid. It is mixed with 5–15 wt.% starch, 2.5–7.5 wt.% synthetic polymer, 12.5–22.5 wt.% plant hydrogel, glycerin, cellulose, and dye. After pH adjustment to 6.5–8.5, the mixture is cured at 125–175 °C and dried at 60–100 °C. The film contains nanocellulose and may use PVC.
Potential applications
Potential applications
- Potential use in research on films for disposable gloves or hand coverings.
- Potential use in nonwoven or molded wearable protective layers after barrier validation.
- Potential use as a platform for palm-derived film formulations.
- Potential use in comparing plant-hydrogel and synthetic-polymer blend ratios.
Evidence-supported advantages
Evidence-supported advantages
- Uses date-palm pith as a substantial component of the film mixture.
- Combines nanocellulose with aloe-vera, okra, and Acacia arabica gels.
- Defines ingredient ranges, pH, pressure, curing, and drying conditions.
- Claims low ASTM D570 water absorption and no cracking under ASTM D5419 testing.
Development stage
Development stage
Patent publication with a described fabrication method and ASTM-referenced property tests; barrier performance, skin safety, end-of-life behavior, and commercialization were not established.
Commercial opportunity
Commercial opportunity
The formulation may support collaborative development with glove, wearable-film, or bio-based materials companies. Product work should verify composition, repeatability, barrier performance, puncture and tear behavior, breathability, chemical resistance, extractables, skin irritation and sensitization, sterilization, shelf life, PVC content, actual bio-derived fraction, biodegradation, disposal route, and applicable protective-product standards.
Patent classifications
Patent classifications
WIPO IPC
- C08L97/02Compositions of macromolecular compounds
- A41D19/00Outerwear; protective garments; accessories
CPC
- A41D19/0055Outerwear; protective garments; accessories
- C08J5/18Working-up; general compounding processes; after-treatment of macromolecular compounds
- C08K5/0041Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08L97/02Compositions of macromolecular compounds
- C09B61/00Organic dyes or closely related dye-producing compounds; mordants; lakes
- A41D19/00Outerwear; protective garments; accessories
- C08J2397/02Working-up; general compounding processes; after-treatment of macromolecular compounds
- C08J2401/02Working-up; general compounding processes; after-treatment of macromolecular compounds
- C08J2403/02Working-up; general compounding processes; after-treatment of macromolecular compounds
- C08J2429/10Working-up; general compounding processes; after-treatment of macromolecular compounds
- C08J2499/00Working-up; general compounding processes; after-treatment of macromolecular compounds
- C08K2201/018Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/053Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08L1/00Compositions of macromolecular compounds
- C08L2201/06Compositions of macromolecular compounds
- C08L2203/16Compositions of macromolecular compounds
- C08L2205/035Compositions of macromolecular compounds
- C08L2205/16Compositions of macromolecular compounds
- C08L27/06Compositions of macromolecular compounds
- C08L3/00Compositions of macromolecular compounds
Inventors
Inventors
- First inventorABM Sharif Hossain
- InventorMohammed Saad Aleissa
- InventorHassan Ahmed Rudayni
- InventorNaif M. A. Alotaibi
- InventorMohammed Ibrahim Alghonaim
Keywords
Keywords
- wearable film
- date-palm pith
- nanocellulose
- plant hydrogel
- acid treatment
- PVC
- glycerin
- glove material
Patent document and drawings
Patent document and drawings
The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.