EP3300773A1 - Procédé pour produire un gant polyuréthane à base de solvant ultra-doux - Google Patents

Procédé pour produire un gant polyuréthane à base de solvant ultra-doux Download PDF

Info

Publication number: EP3300773A1
Authority: EP; European Patent Office
Prior art keywords: layer; glove; hollow; hollow beads; beads
Prior art date: 2016-09-29
Legal status (The legal status 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 status listed.): Granted

Application number

EP16191251.4A

Other languages

German (de)

English (en)

Other versions

EP3300773B1 (fr

Inventor

Peter Zhang

Linan Zhao

Bruce ZHANG

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.)

Honeywell International Inc

Original Assignee

Honeywell International Inc

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.)

2016-09-29

Filing date

2016-09-29

Publication date

2018-04-04

2016-09-29 Application filed by Honeywell International Inc filed Critical Honeywell International Inc

2016-09-29 Priority to EP16191251.4A priority Critical patent/EP3300773B1/fr

2018-04-04 Publication of EP3300773A1 publication Critical patent/EP3300773A1/fr

2019-09-25 Application granted granted Critical

2019-09-25 Publication of EP3300773B1 publication Critical patent/EP3300773B1/fr

Status Active legal-status Critical Current

2036-09-29 Anticipated expiration legal-status Critical

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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.
a chemical protection glove may comprise an outer layer comprising at least one layer of a chemically impermeable material; 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.
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.
a 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. In some embodiments, 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. In some embodiments, the hollow beads 120 may 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.
various other low-density materials including beads of microfoamed 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.
a chemical protection glove may comprise an outer layer comprising at least one layer of a chemically impermeable material; 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.
a second embodiment can include the glove of the first embodiment, wherein the outer layer and inner layer of the glove comprise a polyurethane solution.
a third embodiment can include the glove of the first or second embodiments, wherein the polyurethane solution of the outer layer penetrates through the fabric layer to form the inner layer.
a fourth embodiment can include the glove of any of the first to third embodiments, wherein the outer layer also comprises 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 fifth embodiment can include the glove of any of the first to fourth embodiments, wherein the glove is formed by dipping the fabric layer into a polyurethane solution comprising the hollow beads, and wherein the polyurethane solution penetrates through the fabric layer to form the outer layer and the inner layer.
a sixth embodiment can include the glove of the fifth embodiment, wherein the polyurethane solution further comprises a dimethylformamide solvent.
a seventh embodiment can include the glove of any of the first to sixth embodiments, wherein the hollow beads comprise a diameter less than approximately 50 micrometers.
An eighth embodiment can include the glove of any of the first to seventh embodiments, wherein the hollow beads comprise a hollow glass material.
a ninth embodiment can include the glove of any of the first to eighth embodiments, wherein the hollow beads comprise at least one of the following materials: hollow glass beads, hollow polyvinyl chloride beads, hollow polyvinyl alcohol beads, polymethyl methacrylate, other hollow organic and inorganic beads, or a combination thereof.
a tenth embodiment can include the glove of any of the first to ninth embodiments, wherein the polyurethane solution comprises a crosslink agent.
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.
a twelfth embodiment can include the method of the eleventh embodiment, further comprising drying the glove.
a thirteenth embodiment can include the method of the eleventh or twelfth embodiments, further comprising creating a textured surface on the inner layer by at least partially exposing the hollow beads of the inner layer.
a fourteenth embodiment can include the method of the thirteenth embodiment, wherein partially exposing the hollow beads of the inner layer is accomplished by drying the glove.
a fifteenth embodiment can include the method of the any of the eleventh to fourteenth embodiments, further comprising creating a textured surface on the inner layer by at least partially exposing the hollow beads of the outer layer.
a sixteenth embodiment can include the method of the fifteenth embodiment, wherein partially exposing the hollow beads of the outer layer is accomplished by drying the glove.
a seventeenth embodiment can include the method of any of the eleventh to sixteenth embodiments, further comprising mixing the polyurethane solution comprising polyurethane latex, a solvent, the hollow beads, and a pigment.
a 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.
a nineteenth embodiment can include the glove of the eighteenth embodiment, wherein the glove is formed by dipping the fabric layer into a polyurethane solution comprising the hollow beads, and wherein the polyurethane solution penetrates through the fabric layer to form the outer layer and the inner layer.
a twentieth embodiment can include the glove of the eighteenth or nineteenth embodiments, wherein the hollow beads comprise a hollow glass material and comprise a diameter less than approximately 50 micrometers.

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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)

EP16191251.4A 2016-09-29 2016-09-29 Procédé pour produire un gant polyuréthane à base de solvant ultra-doux Active EP3300773B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP16191251.4A EP3300773B1 (fr)	2016-09-29	2016-09-29	Procédé pour produire un gant polyuréthane à base de solvant ultra-doux

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP16191251.4A EP3300773B1 (fr)	2016-09-29	2016-09-29	Procédé pour produire un gant polyuréthane à base de solvant ultra-doux

Publications (2)

Publication Number	Publication Date
EP3300773A1 true EP3300773A1 (fr)	2018-04-04
EP3300773B1 EP3300773B1 (fr)	2019-09-25

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Citations (7)

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WO2008108755A1 (fr) *	2007-03-05	2008-09-12	E. I. Du Pont De Nemours And Company	Articles de protection chimique à doublure adsorbante séparable
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US20160029721A1 (en) *	2014-08-04	2016-02-04	Group Industry, Llc	Concealed impact glove

2016
- 2016-09-29 EP EP16191251.4A patent/EP3300773B1/fr active Active

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20030134063A1 (en) *	2002-01-11	2003-07-17	Vance Jeffrey Duane	Polymeric material with resistant structure and method of making the same
DE20318173U1 (de) *	2003-10-14	2004-11-25	BLüCHER GMBH	Atmungsaktiver Schutzhandschuh mit ABC-Schutz
DE20318069U1 (de) *	2003-10-22	2005-01-05	BLüCHER GMBH	Schutzbekleidung mit ABC-Schutz
WO2008108755A1 (fr) *	2007-03-05	2008-09-12	E. I. Du Pont De Nemours And Company	Articles de protection chimique à doublure adsorbante séparable
US20110206920A1 (en) *	2008-09-19	2011-08-25	Mohammad Reza Ehsani	Structure reinforcement wrap
WO2015074106A1 (fr) *	2013-11-25	2015-05-28	Ansell Limited	Gant soutenu possédant des caractéristiques de prise
US20160029721A1 (en) *	2014-08-04	2016-02-04	Group Industry, Llc	Concealed impact glove

Also Published As

Publication number	Publication date
EP3300773B1 (fr)	2019-09-25

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