EP3300773B1 - Verfahren zur herstellung eines ultraweichen lösungsmittelbasierten polyurethanhandschuhs - Google Patents

Verfahren zur herstellung eines ultraweichen lösungsmittelbasierten polyurethanhandschuhs Download PDF

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Publication number
EP3300773B1
EP3300773B1 EP16191251.4A EP16191251A EP3300773B1 EP 3300773 B1 EP3300773 B1 EP 3300773B1 EP 16191251 A EP16191251 A EP 16191251A EP 3300773 B1 EP3300773 B1 EP 3300773B1
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EP
European Patent Office
Prior art keywords
layer
hollow
beads
glove
hollow beads
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Active
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EP16191251.4A
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English (en)
French (fr)
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EP3300773A1 (de
Inventor
Peter Zhang
Linan Zhao
Bruce ZHANG
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Honeywell International Inc
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Honeywell International Inc
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Priority to EP16191251.4A priority Critical patent/EP3300773B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D5/00—Composition of materials for coverings or clothing affording protection against harmful chemical agents

Definitions

  • Seamless, three-dimensional gloves may be formed using a glove mold and dipping the mold into a liquidized material that may dry to form the glove material.
  • Such gloves may be used to protect a user's hands from chemicals, dust, grease, or other harmful substances. These gloves may be formed in varies sizes to accommodate the user.
  • US2016/029721 discloses a glove having an inner glove formed in the shape of a human hand, a protective member secured to the inner glove; and an outer glove attached to at least one of the inner glove and the protective member, the outer glove being formed in the shape of a human hand and configured to fit over the protective member and the inner glove.
  • WO2015/074106 discloses gloves including a fabric liner; a first polymeric composition adhered to at least a portion of the fabric liner, forming a polymeric coating; and a plurality of raised features comprising a second polymeric composition disposed on a surface of the polymeric coating, wherein the polymeric coating and the plurality of raised features comprise different polymeric compositions adapted to enhance at least one of oil grip properties, dry grip properties, or wet grip properties.
  • DE20318173 and DE20318069 disclose protective gloves, especially for protection against chemical weapons, containing a barrier layer comprising a water vapor permeable membrane between the carrier and adsorption layers.
  • US2011/206920 discloses a method and an article of manufacture are disclosed for reinforcing various structures, such as pipes, ducts, vessels, tanks, silos, chimneys, and the like, constructed from various materials including steel, concrete, masonry, wood, plastics, and the like.
  • WO2008/108775 discloses a chemically protective article comprising an outer shell and a separable adsorptive liner is provided. When the adsorption sites of the liner become saturated, the liner alone may be replaced without discarding the entire article.
  • US2003/134063 discloses an elastomeric or polymer material or glove having enhanced cut or penetration resistance.
  • a chemical protection glove may comprise an outer layer comprising at least one layer of a chemically impermeable material comprising a polyurethane solution; a fabric layer located beneath the outer layer of the glove; and an inner layer configured to contact the user's skin comprising a plurality of hollow beads dispersed throughout the inner layer, wherein the hollow beads at least partially extend from the surface of the inner layer, and wherein the hollow beads create a textured surface on the inner layer; wherein the outer layer (106) and inner layer (108) comprise a polyurethane solution; and wherein the polyurethane solution of the outer layer (106) extends through the fabric layer (104) to form the inner layer (108).
  • a method for forming a chemical protection glove may comprise placing a fabric layer onto a glove mold; dipping the glove mold with the fabric layer into a polyurethane solution comprising a plurality of hollow beads; forming an outer layer of the polyurethane solution onto the fabric layer, wherein the hollow beads are dispersed through the outer layer; and forming an inner layer of the polyurethane solution by allowing the polyurethane solution to penetrate the fabric layer, wherein the hollow beads are dispersed throughout the inner layer.
  • the chemical protection glove may comprise an outer layer comprising at least one layer of a chemically impermeable material, and comprising a plurality of hollow beads dispersed throughout the outer layer, wherein the hollow beads at least partially extend from the surface of the outer layer, and wherein the hollow beads create a textured surface on the outer layer; a fabric layer located beneath the outer layer of the glove, wherein the material of the outer layer at least partially penetrates through the fabric layer; and an inner layer configured to contact the user's skin comprising a plurality of hollow beads dispersed throughout the inner layer, wherein the hollow beads at least partially extend from the surface of the inner layer, and wherein the hollow beads create a textured surface on the inner layer.
  • Embodiments of the disclosure include methods and systems for creating a glove comprising a plurality of hollow beads located within the material of the glove.
  • the hollow beads may be dispersed within a coating that is used to form at least one of the inner and/or outer surfaces of the glove.
  • PU solvent based polyurethane
  • PU coatings such as PU penetration and unacceptable coating edge appearance, which may lead to unpleasant hand feeling and unacceptable quality of glove appearance.
  • Some users may be unsatisfied with the comfort levels of PU glove products, because of these issues.
  • Embodiments of the disclosure comprises elements for improving the solvent based PU glove with ultra-soft hand feeling, improved wearing comfort, lightweight materials, and good coating edge quality.
  • the PU solution may penetrate through fabrics to form a coating on the inner surface of the glove.
  • the inner coating may provide an unwelcome rubber-like feeling as it contacts the user's skin.
  • Embodiments of the disclosure may comprise a plurality of hollow beads within the PU solution, where the hollow beads may also penetrate through the fabric and be present in the inner coating.
  • the hollow beads may at least partially extend from the surface of the coating, creating raised bubbles or "nubbins" which may improve tactile feel for the user's hand. Additionally, the hollow beads may reduce the total weight of the glove by providing hollow areas throughout the material and reducing the amount of PU material that is required.
  • the weight of the glove that incorporates the hollow beads may be reduced by approximately 40% when compared to a typical PU coated glove.
  • the hollow beads may provide a barrier to spreading of the PU solution, thereby creating a uniform coating edge.
  • FIGS. 1A-1B an exemplary process of forming a glove 100 is shown.
  • a fabric layer 104 is placed on a glove mold (or form) 102.
  • the glove mold 102, with the fabric layer 104 attached may be dipped into a material to form a chemical protection layer 106 (or outer layer), wherein the chemical protection layer 106 may comprise a plurality of hollow beads.
  • the material of the chemical protection layer 106 may at least partially penetrate through the fabric layer 104, and may form a coating on the inner surface of the fabric layer 104, as well as the outer surface.
  • FIGS. 2A-2B a cross-sectional view of the glove 100 is shown, where FIG. 2A corresponds to FIG. 1A and FIG. 2B corresponds to FIG. 1B .
  • the fabric layer 104 is located adjacent to the glove mold 102.
  • the glove mold 102 and fabric layer 104 have been dipped to apply the chemical protection layer 106.
  • the chemical protection layer 106 may comprise a plurality of hollow beads 120, where the hollow beads 120 may be dispersed throughout the glove 100.
  • the material of the chemical protection layer 106 may penetrate the fabric layer 104 to create an inner coating (or inner layer) 108 on the inner surface of the glove 100.
  • the hollow beads 120 may penetrate through the fabric layer 104 as well, wherein the hollow beads 120 may be small enough to pass through any openings in the fabric layer 104.
  • the hollow beads 120 may at least partially extend from the surface of the chemical protection layer 106, providing a textured surface on the outer layer of the glove 100.
  • the hollow beads 120 at least partially extend from the surface of the inner coating 108 (or inner layer), providing a textured surface on the inner layer of the glove 100.
  • the hollow beads 120 may be dispersed evenly throughout the chemical protection layer 106, fabric layer 104, and inner coating 108.
  • the presence of the hollow beads 120 in the chemical protection layer 106 may not compromise the chemical protection qualities of the glove 100.
  • the hollow beads 120 may influence the mechanical properties of the glove 100, especially abrasion, and this may be accounted for by including a crosslink agent in the formulation of the PU coating material.
  • the hollow beads 120 may comprise a hollow glass material.
  • the hollow beads 120 may comprise one or more materials including hollow glass beads, hollow polyvinyl chloride (PVC) beads, hollow polyvinyl alcohol (PVA) beads, polymethyl methacrylate (PMMA) and/or other hollow organic and inorganic beads.
  • the hollow beads 120 may comprise a diameter less than approximately 50 micrometers ( ⁇ m).
  • the hollow beads 120 may also be known as bubbles, spheres, microspheres, or particles. While described as being hollow, various other low-density materials including beads of micro foamed materials and the like (e.g., having a plurality of internal voids rather than a single internal void) can also be used. The beads formed from such materials can be made of the same materials and have the same dimensions as those described above.
  • the glove 100 described above may provide improved comfort in wearing for a user. This may be demonstrated by the results of a comparison test with a typical PU glove that does not contain the hollow beads. Additionally, for reference, the glove 100 was compared with 100% lamb's wool, which may be considered a standard for softness and comfort. The results of the comparison test are shown below in Table 1. The testing was completed using a PhabrOmeter instrument, where a larger value indicates a higher dexterity and comfort. As can be seen in the table, the testing results for the glove containing the hollow beads are an improvement over the original (or typical) glove, and are closer in number to those results from the 100% lamb's wool.
  • a process for making the glove described above may comprise preparing the PU coating dispersion, wherein the PU coating dispersion (or solution) may comprise PU, hollow beads, pigment, and solvent.
  • the PU dispersion may be mixed by adding PU latex into the solvent (which may comprise dimethylformamide (DMF)). Then, the hollow beads and pigment may be added to the mixture, which may be stirred to control the viscosity of the solution.
  • DMF dimethylformamide
  • a fabric layer may be placed on the glove mold, and the mold and fabric may be dipped into the PU solution.
  • the mold and fabric layer may be heated before dipping.
  • the dipping process may comprise one dip into the solution or multiple dips into the solution.
  • the dipping process may allow the mold and fabric to sit in the solution for a set amount of time.
  • the dipping process may comprise leaching for approximately 30-40 minutes in hot water.
  • the glove may be dried.
  • the glove may be dried in an oven at approximately 70 to 120 degrees Celsius.
  • the beads may float to and extend from the surface of the coating layers, creating the textured surfaces.
  • the volume of the wet coating layer is decreased by drying (i.e. some of the coating layer evaporates away), the hollow beads may "appear" on the surfaces of the glove.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Gloves (AREA)

Claims (13)

  1. Chemikalienschutzhandschuh (100), umfassend:
    eine äußere Schicht (106), umfassend wenigstens eine Schicht aus einem chemisch undurchlässigen Material, das eine Polyurethanlösung umfasst;
    eine Gewebeschicht (104), die unter der äußeren Schicht (106) angeordnet ist; und
    eine innere Schicht (108), die zum Kontakt mit der Haut eines Anwenders gestaltet ist, umfassend eine Vielzahl von hohlen Perlen (120), die in der inneren Schicht (108) dispergiert sind, wobei die hohlen Perlen (120) wenigstens teilweise von der Oberfläche der inneren Schicht (108) vorragen, und wobei die hohlen Perlen (120) eine texturierte Oberfläche auf der inneren Schicht (108) erzeugen,
    wobei die äußere Schicht (106) und die innere Schicht (108) eine Polyurethanlösung umfassen; und
    wobei sich die Polyurethanlösung der äußeren Schicht (106) durch die Gewebeschicht (104) erstreckt, um die innere Schicht (108) zu bilden.
  2. Chemikalienschutzhandschuh (100) gemäß Anspruch 1, wobei die äußere Schicht (106) eine Vielzahl von hohlen Perlen (120) umfasst, die in der äußeren Schicht (106) dispergiert sind, wobei die Vielzahl von hohlen Perlen (120) wenigstens teilweise von der Oberfläche der äußeren Schicht (106) vorragt, und wobei die hohlen Perlen (120) eine texturierte Oberfläche auf der äußeren Schicht (106) erzeugen.
  3. Chemikalienschutzhandschuh (100) gemäß Anspruch 1, wobei die Gewebeschicht (104) mit einer Polyurethanlösung gesättigt ist, die die hohlen Perlen (120) umfasst, und wobei sich die Polyurethanlösung durch die Gewebeschicht (104) erstreckt, um die äußere Schicht (106) und die innere Schicht (108) zu bilden.
  4. Chemikalienschutzhandschuh (100) gemäß Anspruch 3, wobei die Polyurethanlösung ferner ein Dimethylformamid-Lösungsmittel umfasst.
  5. Chemikalienschutzhandschuh (100) gemäß Anspruch 1, wobei die hohlen Perlen (120) einen Durchmesser von kleiner als oder gleich etwa 50 Mikrometer aufweisen.
  6. Chemikalienschutzhandschuh (100) gemäß Anspruch 1, wobei die hohlen Perlen (120) ein hohles Glasmaterial umfassen.
  7. Chemikalienschutzhandschuh (100) gemäß Anspruch 1, wobei die hohlen Perlen (120) wenigstens eines der folgenden Materialien umfassen: hohle Glasperlen, hohle Polyvinylchloridperlen, hohle Polyvinylalkoholperlen, hohle Polymethylmethacrylatperlen, andere hohle oder und anorganische Perlen oder eine Kombination davon.
  8. Chemikalienschutzhandschuh (100) gemäß Anspruch 1, wobei die Polyurethanlösung ein Vernetzungsmittel umfasst.
  9. Verfahren zur Herstellung eines Chemikalienschutzhandschuhs, umfassend:
    Anordnen einer Gewebeschicht auf einer Handschuhform;
    Eintauchen der Handschuhform mit der Gewebeschicht in eine Polyurethanlösung, die eine Vielzahl von hohlen Perlen umfasst;
    Bilden einer äußeren Schicht der Polyurethanlösung auf der Gewebeschicht, wobei die hohlen Perlen in der äußeren Schicht dispergiert sind; und
    Bilden einer inneren Schicht der Polyurethanlösung durch Erlauben, dass die Polyurethanlösung die Gewebeschicht durchdringt, wobei die hohlen Perlen in der inneren Schicht dispergiert sind.
  10. Verfahren gemäß Anspruch 9, ferner umfassend: Trocknen des Handschuhs.
  11. Verfahren gemäß Anspruch 9, ferner umfassend: Erzeugen einer texturierten Oberfläche auf der inneren Schicht durch wenigstens teilweises Freilegen der hohlen Perlen der inneren Schicht.
  12. Verfahren gemäß Anspruch 9, ferner umfassend: Erzeugen einer texturierten Oberfläche auf der inneren Schicht durch wenigstens teilweises Freilegen der hohlen Perlen der äußeren Schicht.
  13. Verfahren gemäß Anspruch 9, ferner umfassend: Mischen der Polyurethanlösung, wobei die Polyurethanlösung Polyurethanlatex, ein Lösungsmittel, die hohlen Perlen und ein Pigment umfasst.
EP16191251.4A 2016-09-29 2016-09-29 Verfahren zur herstellung eines ultraweichen lösungsmittelbasierten polyurethanhandschuhs Active EP3300773B1 (de)

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Application Number Priority Date Filing Date Title
EP16191251.4A EP3300773B1 (de) 2016-09-29 2016-09-29 Verfahren zur herstellung eines ultraweichen lösungsmittelbasierten polyurethanhandschuhs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16191251.4A EP3300773B1 (de) 2016-09-29 2016-09-29 Verfahren zur herstellung eines ultraweichen lösungsmittelbasierten polyurethanhandschuhs

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EP3300773A1 EP3300773A1 (de) 2018-04-04
EP3300773B1 true EP3300773B1 (de) 2019-09-25

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7504145B2 (en) * 2002-01-11 2009-03-17 Higher Dimension Materials, Inc. Polymeric material with resistant structure and method of making the same
DE20316856U1 (de) * 2003-10-14 2004-11-25 BLüCHER GMBH Atmungsaktiver Schutzhandschuh mit ABC-Schutz
DE20317080U1 (de) * 2003-10-22 2004-12-02 BLüCHER GMBH Schutzbekleidung mit ABC-Schutz
WO2008108755A1 (en) * 2007-03-05 2008-09-12 E. I. Du Pont De Nemours And Company Chemically protective articles with separable adsorptive liner
US20110206920A1 (en) * 2008-09-19 2011-08-25 Mohammad Reza Ehsani Structure reinforcement wrap
US10349690B2 (en) * 2013-11-25 2019-07-16 Ansell Limited Supported glove having grip features
US20160029721A1 (en) * 2014-08-04 2016-02-04 Group Industry, Llc Concealed impact glove

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