WO2023200408A1 - Nanoemulsion coated-surface glove from natural rubber, nitrile, and poly isoprene for examination and surgical purposes and its manufacturing process - Google Patents

Nanoemulsion coated-surface glove from natural rubber, nitrile, and poly isoprene for examination and surgical purposes and its manufacturing process Download PDF

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Publication number
WO2023200408A1
WO2023200408A1 PCT/TH2022/000015 TH2022000015W WO2023200408A1 WO 2023200408 A1 WO2023200408 A1 WO 2023200408A1 TH 2022000015 W TH2022000015 W TH 2022000015W WO 2023200408 A1 WO2023200408 A1 WO 2023200408A1
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WIPO (PCT)
Prior art keywords
nanoemulsion
gloves
solution
coated surface
weight
Prior art date
Application number
PCT/TH2022/000015
Other languages
French (fr)
Inventor
Worrawit WANTISUWAN
Ekwipoo KALKORNSURAPRANEE
Surachet SOONTONTAWEESUB
Original Assignee
Prince Of Songkla University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to PCT/TH2022/000015 priority Critical patent/WO2023200408A1/en
Publication of WO2023200408A1 publication Critical patent/WO2023200408A1/en

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01PBIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P1/00Disinfectants; Antimicrobial compounds or mixtures thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • A01N25/04Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/34Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B42/00Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
    • A61B42/10Surgical gloves
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • C08J7/06Coating with compositions not containing macromolecular substances
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2307/00Characterised by the use of natural rubber
    • C08J2307/02Latex
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2309/00Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08J2309/02Copolymers with acrylonitrile
    • C08J2309/04Latex

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Dentistry (AREA)
  • Surgery (AREA)
  • Agronomy & Crop Science (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dispersion Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Gloves (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

This invention presents nanoemulsion coated surface gloves which consist of germicidal long chain length polymer, disinfection enhancer, stabilizer, and intermediate. The preparation processes are mix the stabilizer and intermediate then add germicidal long chain length polymer and stir well. Next, add the disinfection enhancer into the solution and mix well. Set aside for stabilization to get the nanoemulsion solution. After that, apply the nanoemulsion solution onto the latex gloves to get the nanoemulsion coated surface gloves.

Description

Description of Invention
Title of Invention
NANOEMULSION COATED-SURFACE GLOVE FROM NATURAL RUBBER, NITRILE, AND POLY ISOPRENE FOR EXAMINATION AND SURGICAL PURPOSES AND ITS MANUFACTURING PROCESS
Technical Field
Chemistry field related to the nanoemulsion surface coated glove and its manufacturing process
Background Art
Ever since the beginning of the CO VID-19 pandemic in Thailand, related authorities are deeply concerned about waste management of the high-risk COVID-19 hazardous waste as there were reports in foreign countries of the virus spreading into the environmental system that possibly occurred due to unawareness. Therefore, the new wave of spreading may return in Thailand if the hazardous waste management is not cautiously taking into account. In Thailand under the mission of environmental health, food and water sanitary was thoughtfully planned. On the other hand, environmental health on hazardous waste is one of the most significant issues which can be classified into two sources of hazardous waste:
1. Patients who increased the amount of hazardous waste during the process of treatment. Department of Health reported that a COVID-19 patient produced approximately 2.85 kilograms of hazardous waste per bed per day
2. Hazardous waste of the early stage of state or self-quarantine. The report of the department of health showed that currently, there are 145.57 tons per day of hazardous waste in the waste disposal system or approximately 40% of hazardous waste disposal capacity meanwhile, the process of transporting the infectious waste from its origin to the Infectious waste incinerator must be prudent and circumspect. Incineration is the main infectious waste disposal method in Thailand where the waste will be incinerated with the extra high heat. Also, the report revealed that there are altogether 93 Infectious waste incinerators were 11 own by the government, 4 by private sectors, and 78 by hospitals across the country.
From the research of the patents database domestically and internationally, similar patent of inventions was found as follow:
Thai patent application no.9801002624. Its description explained the preparation of gloves that contained microorganism-protected substance in plastisol which is used as a material for gloves production. The common anti-microorganism gloves used in the food industry usually process by plastisol cold-dipping process which consisted of polymer resin, the substance that helps form plastic. However, there are some limitations of the patent as the anti-microorganism gloves are not capable of bacteria and virus protection for medical usage.
Thai petty patent no. 1703002405. The manufacturing of natural rubber grafted with polymethyl methacrylate gloves in the form of latex to increase the roughness of the surface, reducing contact between skin and gloves which resulted in the lower chance of allergy from protein in the latex. In addition, the nanosilver was added to restrain gram-positive and negative bacteria. The latex certainly is molded into various sizes, nevertheless, there is no nanoemulsion coated.
Thai petty patent no. 1803000710. Herbal nanoemulsion for dog skin contained rice bran oil, galangal oil, emulsifier, propylene glycol, and purified water. The emulsion can kill bacteria and prevent the inflammation that can be absorbed through dogs’ thick skin. However, this formula is lacking the disinfection enhancer and the germicidal long chain length polymer.
Thai petty patent no. 1603000130 related to the composition development of the nonaemulsion that being prepared without using a high-pressure homogenizer to reduce the complexity and cost in the producing process. This formula kept on the properties of 4 hours mosquitos’ repellent, users’ skin irritation-free, and good stability which enhance oil and aromatic oil scent retention. The composition of this invention contained aromatic oils such as eucalyptus citriodora and one of these aromatic oils such as eucalyptus oil, clove oil, or wild tomato leaf extract oil together with surfactant. However, this formula is lacking the disinfection enhancer and the germicidal long chain length polymer.
Thai patent application publication no, 1601006095 described continued phase and reversible dispersed phase nanoemulsion. This nanoemulsion is in the form of water phase and oil phase as the ratio of 1:40-100:1. The water phase dispersed into a nanodroplet in the oil phase or in the opposite way. Also, the water phase contained water or aqueous solution and substance that form stability to the dissolvable organic nanostructures while the oil phase contained oil or oily solution, organic gel thickening agent, and hydrophilic surfactant that HLB >80. However, this formula is lacking the disinfection enhancer and the germicidal long chain length polymer.
Characteristic and Objective of Invention
This invention represents nanoemulsion coated surface gloves which contained germicidal long chain length polymer, disinfection enhancer, stabilizer, and intermediate. The preparation process begins with the mixture of stabilizer and intermediate, then add in the germicidal long chain length polymer and mix well. Next, add and stir well the disinfection enhancer to the solution and set it aside to stabilize. Finally, the nanoemulsion solution is ready to be used for nanoemulsion coated surface glove manufacturing.
The objectives of the invention are to develop a nanoemulsion solution for adjusting the structure of the glove s surface to contain germicidal and self-sterilize properties. More of this, the nanoemulsion spray can be applied on various surfaces and the surface of natural rubber gloves and nitrile gloves. After spray, nanochain will be released from the surface through its mechanism, the germinal membrane will lose its structure and eventually decays. The germicidal and self-sterilize properties in the nanoemulsion coated gloves resulting safety for its users.
Disclosure of Invention
Nanoemulsion coated surface gloves are film-coated natural latex which consists of latex gloves and nanoemulsion solution as the following ratio:
Glove quantity 100 unit Nanoemulsion solution quantity 0.1-1 unit per 100 gloves
Nanoemulsion solution consists of:
Germicidal long chain length polymer percentage quantity 0.01-15 of nanoemulsion solution s weight
Disinfection enhancer percentage quantity 0.1-5 of nanoemulsion solution s weight
Stabilizer percentage quantity 0.1-5 of nanoemulsion solution s weight
Intermediate Adjust the quantity to get 100% product quantity by weight.
Germicidal long chain length polymer can be selected from single or multiple sources below:
Benzalkonium chloride, Dialkyldimethylammonium chloride, Trialkylmethyl ammonium chloride, Polysorbate 20 (Tween 20), Polysorbate 40 (Tween 40), Polysorbate 60 (Tween 60), Polysorbate 80 (Tween 80), Sorbitan monolaurate (Span 20), Sorbitan monopalmitate (Span 40), Sorbitane monostearate (Span 60), and Sorbitan monooleate (Span 80).
Disinfection enhancer can be selected from single or multiple sources below:
Sodium hypochlorite, Povidone iodine, Hydrogen peroxide, Tannin, green tea leaves extract, grape seeds extract, peony roots or flowers extract, shallot extract, drumstick tree leaves extract, and liquorice extract
The stabilizer can be selected from single or multiple sources below:
Ethylenediaminetetraacetic acid, Calcium hydroxide, Sodium hydrogen carbonate, Sodium citrate, Zeolite, and Oxalic acid
Intermediate can be selected from purified water, Ethylene glycol, Propylene glycol, Ethanol, Isopropanol, or the composition of the substance. The preparation process of the nanoemulsion coated surface gloves as follows: a. Mix 0.1-5 by weight of the stabilizer and intermediate at 22 to 40 degrees Celsius to get the mixed solution b. Add 0.01-15 percent by weight of the germicidal long chain length polymer into step A mixed solution at 22 to 40 degrees Celsius to get the mixed solution c. Add 0.1-5 percent by weight of the disinfection enhancer into step B mixed solution at 22 to 40 degrees Celsius to get the mixed solution d. Set aside the step C mixed solution at 22 to 40 degrees Celsius for 1 to 3 hours or until the mixed solution melt. The nanoemulsion solution is ready. e. Prepare nanoemulsion solution from step D for the gloves coating process. The manufacturing process can be selected from the following:
- Dip the latex gloves in the nanoemulsion solution from step D at 22 to 40 degrees Celsius for 1 to 5 minutes then nanoemulsion coated surface gloves are ready or
- Mix the nanoemulsion solution from step D with a greasy polymer coating substance then forming on the gloves. Next, nanoemulsion coated surface gloves are ready or
- Spray the nanoemulsion solution from step D on the powder. Coated the nanoemulsion mixed powder on the latex glove then nanoemulsion coated surface gloves are ready.
Best Mode for Carrying out the Invention
Refer to the process under Disclosure of Invention

Claims

Claims
1. Nanoemulsion coated surface gloves consist of latex gloves and nanoemulsion solution as:
- Glove quantity 100 unit
- Nanoemulsion solution quantity 0.1-1 unit per 100 gloves
2. Nanoemulsion coated surface gloves refer to claim no.1. The nanoemulsion solution consists of:
Germicidal long chain length polymer percentage quantity 0.01 - 15 of nanoemulsion solution s weight
Disinfection enhancer percentage quantity 0.1-5 of nanoemulsion solution s weight
Stabilizer percentage quantity 0.1-5 of nanoemulsion solution s weight
Intermediate Adjust the quantity to get 100% product quantity by weight.
3. Nanoemulsion coated surface gloves refer to claim no.l and 2 which germicidal long chain length polymer can be selected from single or multiple sources below:
Benzalkonium chloride, Dialkyldimethylammonium chloride, Trialkylmethyl ammonium chloride, Polysorbate 20 (Tween 20), Polysorbate 40 (Tween 40), Polysorbate 60 (Tween 60), Polysorbate 80 (Tween 80), Sorbitan monolaurate (Span 20), Sorbitan monopalmitate (Span 40), Sorbitane monostearate (Span 60), and Sorbitan monooleate (Span 80)
4. Nanoemulsion coated surface gloves refer to claim no.l and 2 which disinfection enhancer can be selected from single or multiple sources below:
Sodium hypochlorite, Povidone iodine, Hydrogen peroxide, Tannin, green tea leaves extract, grape seeds extract, peony roots or flowers extract, shallot extract, drumstick tree leaves extract, and liquorice extract
5. Nanoemulsion coated surface gloves refer to claim no.l and 2 which stabilizer can be selected from single or multiple sources below:
Ethylenediaminetetraacetic acid, Calcium hydroxide, Sodium hydrogen carbonate, Sodium citrate, Zeolite, and Oxalic acid
6. Nanoemulsion coated surface gloves refer to claim no.l and 2 which intermediate can be selected from purified water, Ethylene glycol, Propylene glycol, Ethanol, Isopropanol, or the composition of the substance.
7. The preparation process of the nanoemulsion coated surface gloves refer to claim no.l as follow: a. Mix 0.1-5 by weight of the stabilizer and intermediate at 22 to 40 degrees Celsius to get the mixed solution b. Add 0.01-15 percent by weight of the germicidal long chain length polymer into step A mixed solution at 22 to 40 degrees Celsius to get the mixed solution c. Add 0.1-5 percent by weight of the disinfection enhancer into step B mixed solution at 22 to 40 degrees Celsius to get the mixed solution d. Set aside the step C mixed solution at 22 to 40 degrees Celsius for 1 to 3 hours or until the mixed solution melt. The nanoemulsion solution is ready. e. Prepare nanoemulsion solution from step D for gloves coating process to get the nanoemulsion coated surface gloves
8. The preparation process of the nanoemulsion coated surface gloves refer to claim no.6 in which the step D stated that the manufacturing process (glove coating) can be selected from the following process
- Dip the latex gloves in the nanoemulsion solution from step D at 22 to 40 degree Celsius for 1 to 5 minutes then nanoemulsion coated surface gloves are ready or
- Mix the nanoemulsion solution from step D with a greasy polymer coating substance then forming on the gloves. Next, nanoemulsion coated surface gloves are ready or
- Spray the nanoemulsion solution from step D on the powder. Coated the nanoemulsion mixed power on the latex gloves then nanoemulsion coated surface gloves are ready.
PCT/TH2022/000015 2022-04-11 2022-04-11 Nanoemulsion coated-surface glove from natural rubber, nitrile, and poly isoprene for examination and surgical purposes and its manufacturing process WO2023200408A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TH2022/000015 WO2023200408A1 (en) 2022-04-11 2022-04-11 Nanoemulsion coated-surface glove from natural rubber, nitrile, and poly isoprene for examination and surgical purposes and its manufacturing process

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PCT/TH2022/000015 WO2023200408A1 (en) 2022-04-11 2022-04-11 Nanoemulsion coated-surface glove from natural rubber, nitrile, and poly isoprene for examination and surgical purposes and its manufacturing process

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002624A1 (en) 1996-07-16 1998-01-22 Hoosier Group, L.L.C. Method and apparatus for controlling expansion and contraction of trench liners
US20050186258A1 (en) * 2004-02-20 2005-08-25 Shiping Wang Antimicrobial medical gloves
US20090143477A1 (en) * 1999-04-28 2009-06-04 Regents Of The University Of Michigan Antimicrobial Nanoemulsion Compositions and Methods
WO2013167850A1 (en) * 2012-05-11 2013-11-14 Gros Robert Timothy Method of manufacturing antimicrobial examination gloves
WO2014113269A1 (en) * 2013-01-15 2014-07-24 Board Of Regents, The University Of Texas System Antimicrobial coatings
TH1601006095A (en) 2016-10-07 2019-03-01 ดร.พูนเดช ไกรฤทธิ์ Nanoemulsions with continuous and reversible dispersion cycles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002624A1 (en) 1996-07-16 1998-01-22 Hoosier Group, L.L.C. Method and apparatus for controlling expansion and contraction of trench liners
US20090143477A1 (en) * 1999-04-28 2009-06-04 Regents Of The University Of Michigan Antimicrobial Nanoemulsion Compositions and Methods
US20050186258A1 (en) * 2004-02-20 2005-08-25 Shiping Wang Antimicrobial medical gloves
WO2013167850A1 (en) * 2012-05-11 2013-11-14 Gros Robert Timothy Method of manufacturing antimicrobial examination gloves
WO2014113269A1 (en) * 2013-01-15 2014-07-24 Board Of Regents, The University Of Texas System Antimicrobial coatings
TH1601006095A (en) 2016-10-07 2019-03-01 ดร.พูนเดช ไกรฤทธิ์ Nanoemulsions with continuous and reversible dispersion cycles

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