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WO2003070811A1 - Preparation de gants 'multicomposants/multiphases' d'emulsion verte - Google Patents

Preparation de gants 'multicomposants/multiphases' d'emulsion verte Download PDF

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Publication number
WO2003070811A1
WO2003070811A1 PCT/CN2002/000438 CN0200438W WO03070811A1 WO 2003070811 A1 WO2003070811 A1 WO 2003070811A1 CN 0200438 W CN0200438 W CN 0200438W WO 03070811 A1 WO03070811 A1 WO 03070811A1
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WO
WIPO (PCT)
Prior art keywords
latex
latex gloves
gloves according
polyurethane
preparing
Prior art date
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Ceased
Application number
PCT/CN2002/000438
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English (en)
Chinese (zh)
Inventor
Zongqiu Su
Sheng Xu
Qiaolong Yuan
Xiaoxin Yao
Lin Gu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI SHENGDA MEDICAL HEALTH STOCK CO Ltd
Original Assignee
SHANGHAI SHENGDA MEDICAL HEALTH STOCK CO Ltd
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Priority to AU2002318706A priority Critical patent/AU2002318706A1/en
Publication of WO2003070811A1 publication Critical patent/WO2003070811A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • C08G18/4241—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols from dicarboxylic acids and dialcohols in combination with polycarboxylic acids and/or polyhydroxy compounds which are at least trifunctional
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances

Definitions

  • the invention is a method for preparing "multi-component / multi-phase" green latex gloves. Background of the invention
  • VOC organic volatile
  • Latex-impregnated products mainly include surgical gloves, oxygen bags, catheters, tourniquets, condoms, finger covers, industrial gloves, household gloves, insulating gloves, balloons, etc. Latex gloves are ubiquitous because of their low price, from surgical gloves to household gloves for hand protection. Natural rubber latex and its products are mainly used latex, but because of the presence of casein in natural rubber latex, it is easy to cause skin allergies-contact rubella, and easy to produce unpleasant odor.
  • Synthetic latex mainly includes chloroprene, chlorobenzene, butyronitrile, butyl, polyurethane, acrylate and their blends and copolymers, etc., because these latex products do not cause skin irritation due to the presence of protein, and are oil and chemical resistant
  • the product has excellent performance, resistance to oxygen and ozone, low permeability and penetration resistance better than natural rubber latex products, and the feel is the same as natural rubber latex products.
  • neoprene and nitrile latex and products have been industrialized, but the recycling of neoprene latex products and the irritating odor of nitrile latex and its products have affected their promotion and application.
  • Polyurethane latex composed of polyurethane aqueous dispersion is a major direction of current research and development.
  • Polyurethane latex products are resistant to organic solvents and chemicals, have good abrasion resistance and weather resistance, and have excellent toughness and elasticity.
  • the recycling of polyurethane latex products can be processed by biological and chemical degradation or incineration.
  • its hydrophilicity can not only be compounded with itself or other latexes, but also cause adhesion between products. Therefore, giving full play to the advantages of polyurethane and avoiding and overcoming its shortcomings is the key to the technical development of polyurethane latex and products.
  • Latex can be compounded to form a single unit. Films can also be formed as multilayer films from different latexes.
  • Japanese Laid-Open Patent Publication No. 09310209 (1997) reports that the latex gloves prepared by impregnating natural protein-free latex with nitrile latex have oil resistance and yellowing resistance.
  • Japanese public patent publications 11081014 (1999) and 200119912 (2000) introduced the addition of colloidal silica to natural rubber latex to improve the tear resistance and easy detachability of latex gloves.
  • Japanese Laid-Open Patent Publication 08283522 (1996) reports that blending a polyester-type polyurethane with a trade name of "Hydran HW920" into a carboxy-butyronitrile latex can make the impregnated product exhibit good solvent resistance and oil resistance.
  • International patent application WO9924507 reports that the impregnated products of neoprene and nitrile compounded limb milk have good resilience and are non-allergenic.
  • Natural latex has many excellent properties. For example, if a layer of synthetic latex is coated on the surface of natural latex products, the skin's allergy to natural latex products can be overcome.
  • the object of the present invention is to provide a method for preparing "multi-component / multi-phase" latex gloves, which comprises: (1) preparation of a polyurethane aqueous dispersion containing a multi-component polyol; (2) polyurethane aqueous dispersion and Compounding of hybrid latex; (3) Preparation of green latex gloves by dipping method. Specifically, it includes the addition reaction of polyester with polyether diols and triols and diols containing hydrophilic ionic groups with cycloaliphatic polyisocyanates, which can be made into many components after neutralization and chain extension Anionic polyurethane aqueous dispersion.
  • the aqueous latex is mixed with water-dispersible crosslinked resin and can be impregnated into polyurethane latex gloves. It can also be compounded with carboxylated styrene-butadiene, carboxylated nitrile, acrylate and nano-silica hybrid latex. It is then impregnated into latex gloves for use in everyday life and medical and health applications.
  • aqueous latex is mixed with water-dispersible crosslinked resin and can be impregnated into polyurethane latex gloves. It can also be compounded with carboxylated styrene-butadiene, carboxylated nitrile, acrylate and nano-silica hybrid latex. It is then impregnated into latex gloves for use in everyday life and medical and health applications.
  • the multi-component polyol in the aqueous polyurethane dispersion is composed of polyester or polyether diols and triols and their mixtures and diols containing hydrophilic (or ionic) groups.
  • Polyester polyol It is composed of adipic acid and neofluorene glycol, butanediol, ethylene glycol, and 3-methylolpropane, while polyfluorinated polyol is composed of propylene oxide, ethylene oxide, and tetrahydrofuran, and propylene glycol, ethylene glycol, and propylene.
  • Triol composition The molecular weight of polyester and polyether polyol is 150 ⁇ 5000, and the ideal molecular weight is 500 ⁇ 3500.
  • the mixed molar ratio of the two can be from 5 to 100%, and the ideal molar ratio is 8 to 50%.
  • Self-emulsifying anionic polyurethane aqueous dispersion is due to the introduction of the ionic group fluorenyl, osmic acid or sulfate in the molecular chain.
  • Multicomponent polyols containing hydrophilic groups (or ionic groups) are often used Glycol-containing glycols, such as dimethylolpropionic acid (DMP), have a content of 0.5 to 20 3 ⁇ 4, and an ideal content of 2 to 12%.
  • DMP dimethylolpropionic acid
  • Polyisocyanates that react with polyols to form polyurethanes include toluene diisocyanate (TDI), 4, 4, methylene diphenyl diisocyanate (MDI), hexamethylene diisocyanate (HDI), and isophorone diisocyanate. (IPDI).
  • TDI toluene diisocyanate
  • MDI methylene diphenyl diisocyanate
  • HDI hexamethylene diisocyanate
  • IPDI isophorone diisocyanate According to the requirements of appearance and performance of latex gloves, it is ideal to choose aliphatic or cycloaliphatic diisocyanate, namely HDI or IPDI.
  • Multi-component polyol and polyisocyanate are added to form a prepolymer.
  • the chain is extended by a diamine to form an aqueous polyurethane dispersion.
  • the inorganic base used for neutralization is ammonia water (content greater than 20%), and the organic base is preferably triamine.
  • Diamine for chain extension Ethylenediamine is ideal.
  • the solid content of the polyurethane aqueous dispersion is 20-50%, the ideal content is 25-40%, and the pH of the aqueous dispersion is 7.0-9.0.
  • a water-dispersible cross-linking resin to the polyurethane aqueous dispersion, and reacting with active hydrogen on the molecular chain, carboxyl groups and hydroxyl groups to form a polyurethane cross-linking network.
  • the water-dispersible cross-linking resin adopts 303 full methyl etherified melamine resin from American Cytec Corporation, the addition amount is 1 ⁇ 40%, and the ideal amount is 5 ⁇ 30%.
  • the hybrid latex formed by the homopolymer or copolymer of vinyl, conjugated diene, unsaturated carboxylic acid and other functional monomers mixed with the aqueous polyurethane dispersion and the inorganic nanomaterial silicon oxide is selected from blue BSN series latex of Xingxing Chemical Technology General Hospital.
  • the hybrid latex is an inorganic-organic water dispersion system with a core-shell structure formed by uniformly dispersed nano-silica and organic polymer. And form a chemical bond between organic polymers.
  • the ideal compound latexes are polyurethane-carboxy styrene-butadiene hybrid latex (BSN-lbs), polyurethane-carboxy butyronitrile hybrid latex (BSN-lban), and polyurethane-acrylate hybrid latex.
  • Nano-sized silicon oxide is evenly dispersed in the gel film, which can strengthen it.
  • Polyurethane The compounding ratio of the ester latex and the hybrid latex is 1 to 99%, and the ideal ratio is 10 to 70%. After compounding, the stability of the latex is improved, and the film forming performance is excellent.
  • the nano silicon oxide in the composite latex is distributed on the surface and the film of the latex film, which can not only improve the mechanical strength and abrasion resistance of the latex gloves, but also prevent the adhesion between the latex films.
  • the pH of the obtained polyurethane aqueous dispersion was 7.7, the solid content was 35%, and the rotational viscosity was 57.5 centipoise at room temperature.
  • Calcium nitrate coagulant was used to immerse the latex by ion deposition method, and then dried at 60 ⁇ 110 ° C to obtain transparent latex gloves with a film thickness of 0.14 mm and a 500% constant elongation strength of 7.2 MPa.
  • Example 3 The content is 35%, and the rotational viscosity is 16.4 centipoise at room temperature.
  • a calcium nitrate-type coagulant was used, which was immersed in a latex by ion deposition, and then dried at 60 to 110 ° C to obtain a transparent latex glove with a film thickness of 0.14 mm and a 500% elongation strength of 6.9 MPa.
  • the aqueous polyurethane dispersion had a pH of 7.5, a solids content of 35%, and a rotational viscosity of 18 centipoise at room temperature.
  • a calcium nitrate coagulant was used, which was immersed in latex by ion deposition method, and then dried at 60 ⁇ 110 ° C to obtain transparent latex gloves with a film thickness of 0.14 mm and a 500% elongation strength of 7.1 MPa.
  • the pH of the aqueous polyurethane dispersion obtained by adding 0.7 parts of ethylenediamine to extend the chain was 7.5, the solid content was 35%, and the rotational viscosity was 18 centipoise at room temperature.
  • Calcium nitrate coagulant was used to immerse the latex by ion deposition method, and then dried at 60 ⁇ : 110 ° C to obtain transparent latex gloves with a film thickness of 0.14mm and a 500% elongation strength of 7.0MPa.
  • Example 6 From 100 parts of the polyurethane latex obtained in Example 4, 7 parts of permethyl etherified melamine (303) was added under high-speed stirring to obtain a milky white stable latex. A calcium nitrate coagulant was used, which was immersed in latex by ion deposition method and then dried at 60 ⁇ 170 ° C to obtain transparent latex gloves with a film thickness of 0.14 mm and a 500% elongation strength of 8.4 MPa.
  • Example 5 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 5 was mixed with 20 parts of carboxybutyronitrile / silica hybrid latex (BSN-ban) to obtain a milky white stable latex.
  • BSN-ban carboxybutyronitrile / silica hybrid latex
  • calcium nitrate Type coagulant which is immersed in latex by ion deposition method, and then dried at 60 ⁇ : 170 ° C to obtain transparent latex gloves.
  • the film thickness is 0.14mm
  • the 500% elongation strength is 9.1MPa
  • the film resilience is good. .
  • Example 5 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 5 was mixed with 20 parts of carboxystyrene-butadiene / silica hybrid latex (BSN-bs) to obtain a milky white stable latex.
  • BSN-bs carboxystyrene-butadiene / silica hybrid latex
  • Calcium nitrate type coagulant was used to immerse the latex by ion deposition method, and then dried at 60 ⁇ : 170 ° C to obtain transparent latex gloves with a film thickness of 0.14mm and a 500% elongation strength of 9.3MPa. Good flexibility.
  • BSN-bs carboxystyrene-butadiene / silica hybrid latex
  • Example 9 100 parts of a crosslinked resin-containing polyurethane latex obtained in Example 6 was mixed with 20 parts of an acrylate / silica hybrid latex (BSN-lwq) to obtain a milky white stable latex. Calcium nitrate type coagulant was used, which was immersed in latex by ion deposition method, and then dried at 60 ⁇ 170 ° C to obtain transparent latex gloves. The film thickness was 0.14mm, the 500% elongation strength was 8.9 MPa, and the film resilience. it is good.
  • BSN-lwq acrylate / silica hybrid latex
  • the pH of the aqueous polyurethane dispersion was 7.8, the solid content was 30%, and the rotational viscosity was 17 centipoise at room temperature.
  • a calcium nitrate type coagulant was used, which was immersed in a latex by ion deposition, and then dried at 60 to 110 ° C to obtain a transparent latex glove with a film thickness of 0.14 mm and a 500% elongation strength of 5.2 MPa.
  • Example 11 To 100 parts of the polyurethane latex obtained in Example 9 was added 5 parts of permethyl ether under high-speed stirring. Melamine (303) was obtained to obtain a milky white stable latex. A calcium nitrate coagulant was used, which was immersed in a latex by ion deposition, and then dried at 60 to 170 ° C to obtain a transparent latex glove with a film thickness of 0.14 mm and a 500% elongation strength of 6.9 MPa.
  • Example 12 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 10 was mixed with 20 parts of carboxybutyronitrile / silica hybrid latex (BSN-ban) to obtain a milky white stable latex. Calcium nitrate coagulant was used to immerse the latex by ion deposition and then dried at 60 ⁇ : 170 ° C to obtain transparent latex gloves with a film thickness of 0.14 mm and a 500% elongation strength of 8.7 MPa. Good flexibility.
  • BSN-ban carboxybutyronitrile / silica hybrid latex
  • Example 10 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 10 was mixed with 20 parts of carboxystyrene-butadiene / silica hybrid latex (BSN-bs) to obtain a milky white stable latex.
  • Calcium nitrate coagulant was used to immerse the latex by ion deposition and then dried at 60 ⁇ : 170 ° C to obtain transparent latex gloves with a film thickness of 0.14 mm and a 500% elongation strength of 8.7 MPa. Good flexibility.
  • BSN-bs carboxystyrene-butadiene / silica hybrid latex
  • Example 14 100 parts of a crosslinked resin-containing polyurethane latex obtained in Example 10 was mixed with 20 parts of an acrylate / silica hybrid latex (BSN-lwq) to obtain a milky white stable latex. Calcium nitrate type coagulant was used, which was immersed in latex by ion deposition method, and then dried at 60 ⁇ 170 ° C to obtain transparent latex gloves with a film thickness of 0.14mm, 500% elongation strength of 7.9 MPa, and film resilience. it is good.
  • BSN-lwq acrylate / silica hybrid latex
  • the rotational viscosity was 95 centipoise at room temperature. 7 parts of permethylated melamine (303) was added under high-speed stirring to obtain a milky white stable latex. A calcium nitrate-type coagulant was used, which was immersed in a latex by ion deposition, and then dried at 60 to 110 ° C to obtain a transparent latex glove with a film thickness of 0.14 mm and a 500% elongation strength of 6.1 MPa.
  • Example 14 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 14 was mixed with 20 parts of carboxybutyronitrile / silica hybrid latex (BSN-ban) to obtain a milky white stable latex.
  • BSN-ban carboxybutyronitrile / silica hybrid latex
  • Calcium nitrate coagulant was used to immerse the latex by ion deposition, and then dried at 60 ⁇ 170 ° C to obtain transparent latex gloves with a film thickness of 0.14mm, 500% elongation strength of 6.9MPa, and film resilience. it is good.
  • Example 14 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 14 was mixed with 20 parts of carboxystyrene-butadiene / silica hybrid latex (BSN-bs) to obtain a milky white stable latex.
  • BSN-bs carboxystyrene-butadiene / silica hybrid latex
  • Calcium nitrate type coagulant was used to immerse the latex by ion deposition, and then dried at 60 ⁇ 170 ° C to obtain transparent latex gloves.
  • the film thickness was 0.14mm, the 500% elongation strength was 7.2MPa, and the film returned. Good flexibility.
  • Example 17 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 14 was mixed with 20 parts of carboxystyrene-butadiene / silica hybrid latex (BSN-bs) to obtain a milky white stable latex.
  • Calcium nitrate type coagulant was used to immerse
  • Example 14 100 parts of the crosslinked resin-containing polyurethane latex obtained in Example 14 was mixed with 20 parts of an acrylate / silica hybrid latex (BSN-lwq) to obtain a milky white stable latex.
  • BSN-lwq an acrylate / silica hybrid latex
  • Calcium nitrate type coagulant was used, which was immersed in latex by ion deposition method, and then dried at 60 ⁇ 170 ° C to obtain transparent latex gloves with a film thickness of 0.14mm, 500% elongation strength of 7.1MPa, and film resilience. it is good.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Gloves (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention porte sur un procédé de préparation de gants 'multicomposants/multiphases' d'émulsion verte dont le latex peut être choisi parmi du latex naturel, du latex synthétique, du latex hybride ou leurs mélanges, leur teneur en éléments volatiles organiques ne devant pas dépasser 8 %. Ledit procédé consiste à préparer une dispersion aqueuse de polyuréthane à partir de polyol à plusieurs composants, à mélanger ladite dispersion avec du latex hybride comprenant un monomère de vinyle, un diène conjugué, un acide carboxylique non saturé, et d'autres monomères fonctionnels et nanoparticules, de manière à lesdits gants qui sont stables et résistants.
PCT/CN2002/000438 2002-02-21 2002-06-26 Preparation de gants 'multicomposants/multiphases' d'emulsion verte Ceased WO2003070811A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002318706A AU2002318706A1 (en) 2002-02-21 2002-06-26 Preparation of "multicomponent/multiphase" green emulsoid gloves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 02110870 CN1439661A (zh) 2002-02-21 2002-02-21 “多组份/多相”绿色乳胶手套的制备
CN02110870.6 2002-02-21

Publications (1)

Publication Number Publication Date
WO2003070811A1 true WO2003070811A1 (fr) 2003-08-28

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Application Number Title Priority Date Filing Date
PCT/CN2002/000438 Ceased WO2003070811A1 (fr) 2002-02-21 2002-06-26 Preparation de gants 'multicomposants/multiphases' d'emulsion verte

Country Status (3)

Country Link
CN (1) CN1439661A (fr)
AU (1) AU2002318706A1 (fr)
WO (1) WO2003070811A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8017685B2 (en) * 2004-07-19 2011-09-13 Dongsung Chemical Co., Ltd. Aqueous polyurethane emulsion composition and polyurethane film using the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100257657A1 (en) * 2006-03-01 2010-10-14 Smarthealth, Inc. Polylactic acid gloves and methods of manufacturing same
US8563103B2 (en) 2010-02-19 2013-10-22 Smarthealth, Inc. Polylactide hydrosol and articles made therefrom
CN107840997A (zh) * 2017-09-13 2018-03-27 杨磊 一种改性聚氨脂的配方及制备工艺
CN107603202A (zh) * 2017-09-30 2018-01-19 南京晟强橡塑有限公司 一种橡皮囊成形设备用聚氨酯橡胶缓冲件
CN111808260B (zh) * 2020-07-29 2021-05-25 四川尤博瑞新材料有限公司 一种基于水性聚氨酯的热敏安全套及其制备方法
CN111910440B (zh) * 2020-08-06 2021-07-09 安丹达工业技术(上海)有限公司 用于开裂发泡涂层的配方及开裂发泡涂层的织物
CN112778480B (zh) * 2021-01-28 2022-07-26 南京优迪新材料科技有限公司 与丁腈胶乳相容性好的无溶剂型聚氨酯分散体及手套涂层用乳液
CN113370548A (zh) * 2021-02-01 2021-09-10 桂林恒保健康防护有限公司 一种基于湿法工艺的聚氨酯安全套成型方法
CN114181371B (zh) * 2022-01-20 2023-11-21 星宇医疗科技股份有限公司 一种耐油型复合胶乳及其制备方法，一次性耐油手套及其制备方法

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