EP1983854A2 - Gant a haute resistance chimique - Google Patents
Gant a haute resistance chimiqueInfo
- Publication number
- EP1983854A2 EP1983854A2 EP07730881A EP07730881A EP1983854A2 EP 1983854 A2 EP1983854 A2 EP 1983854A2 EP 07730881 A EP07730881 A EP 07730881A EP 07730881 A EP07730881 A EP 07730881A EP 1983854 A2 EP1983854 A2 EP 1983854A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- article according
- latex
- mold
- dipping
- Prior art date
- 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
Links
- 239000000126 substance Substances 0.000 title abstract description 22
- 229920000126 latex Polymers 0.000 claims abstract description 62
- 239000004816 latex Substances 0.000 claims abstract description 48
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 44
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 31
- 230000007062 hydrolysis Effects 0.000 claims abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 12
- 238000004132 cross linking Methods 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 22
- 238000007598 dipping method Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 18
- 230000004224 protection Effects 0.000 claims description 18
- 239000004753 textile Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 7
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 6
- 239000000701 coagulant Substances 0.000 claims description 5
- 230000001112 coagulating effect Effects 0.000 claims description 5
- 150000002825 nitriles Chemical class 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000002174 Styrene-butadiene Substances 0.000 claims description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 4
- 239000011115 styrene butadiene Substances 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- -1 polyethylene, ethylene Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 2
- 229920001973 fluoroelastomer Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 31
- 230000004888 barrier function Effects 0.000 description 10
- 239000008188 pellet Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 229920013648 Perbunan Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- FLNKWZNWHZDGRT-UHFFFAOYSA-N azane;dihydrochloride Chemical compound [NH4+].[NH4+].[Cl-].[Cl-] FLNKWZNWHZDGRT-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 125000000914 phenoxymethylpenicillanyl group Chemical group CC1(S[C@H]2N([C@H]1C(=O)*)C([C@H]2NC(COC2=CC=CC=C2)=O)=O)C 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31826—Of natural rubber
- Y10T428/31833—Next to aldehyde or ketone condensation product or addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
Definitions
- the present invention relates to a protective article to protect the user from the risks associated with the handling of chemicals.
- multilayer materials are usually used which comprise at least one layer of a material impervious to said chemicals, i.e. a barrier material.
- a barrier material i.e. a material impervious to said chemicals.
- the effectiveness of the barrier effect of a material is determined by its resistance to permeation, which is measured by the time it takes for a given chemical to pass through the material.
- Materials used to make personal protective equipment must also have sufficient mechanical strength and puncture resistance for common use, such as in a laboratory or workshop.
- a protective garment such as a glove which has a three-dimensional structure, which is devoid of seams or external welds and which is flexible is preferred. so that you can marry the user's movements. Finally, we also expect such a glove that it is resistant to water.
- a barrier material provides protection against a limited number of chemicals.
- a common solution is to superimpose resistant gloves to each of these families in order to provide additional protection. This solution, resulting in a superimposition not very ergonomic, has the disadvantage of hindering handling.
- the inner layer which is in contact with the skin of the user, is made of polyvinyl alcohol while the outer layer is made of rubber.
- the outer layer of rubber which is resistant to water, is very easily degraded in contact with certain solvents organic. Therefore these gloves are not suitable for handling these chemicals.
- Protective articles having a multilayer structure based on polyolefin and on EVOH are also known: US Pat. No. 5,491,022, US 5,059,447, US Pat. No. 4,855,178, US 5,162,148. protection have the disadvantage of providing a low level of chemical protection vis-à-vis amines (methylamine, ethylamine, ..) and to have a low mechanical and thermal protection and low elasticity. On the other hand, these materials, when assembled to produce a glove, have at the welds extra thickness relative to the rest of the material, which is not the case for articles obtained by dipping.
- Chemical protection has two complementary aspects: On the one hand, it is evaluated for a certain number of chemicals the duration during which a barrier material resists permeation by each of these products taken individually. On the other hand it is considered, for a desired duration of resistance, how many families of different chemicals such a material barrier.
- the object of the invention was to provide a barrier material for as many chemicals as possible for as long as possible.
- Such a result has been obtained according to the present invention by the superposition of a layer of natural or synthetic latex, a partially hydrolyzed polyvinyl alcohol layer, a layer of a synthetic latex and optionally a silica-based topcoat and a dispersion of a cationic fluoropolymer.
- US-5,438,709 discloses an elastomeric glove covered with a layer of polyvinyl alcohol and a thickening agent.
- the polyvinyl alcohol used is of a fully hydrolysed quality.
- the gloves described in this document are more particularly intended to be used as a base for forming an orthopedic bandage, because of their slippery character in the presence of water.
- JP 56-078930 discloses a textile glove which is dipped in a polyvinyl alcohol solution and then dried and dipped in a dispersion of a polyvinyl chloride (PVC) resin, before being demolded. This process gives a textile glove that is pleasant and flexible contact.
- PVC polyvinyl chloride
- the subject of the invention is a protective article, preferably a glove, offering improved protection against penetration by chemicals, this article comprising:
- the protection article further comprises:
- the materials of the invention make it possible to increase the duration of passage of said material by the solvents and to constitute a barrier against a wider range of chemicals.
- this material and the articles obtained from this material are of remarkable elasticity with respect to multi-layer materials of the prior art and are water resistant.
- the articles of the invention preferably comprise a support layer consisting of a textile. It may be a fabric or a knit, based on a natural fiber such as cotton, wool, linen, viscose, or synthetic fiber such as polyester, polyamide, of polyethylene, in particular high modulus and high tenacity polyethylene, aramid or para-aramid, or a mixture of several types of fibers.
- a support layer consisting of a textile. It may be a fabric or a knit, based on a natural fiber such as cotton, wool, linen, viscose, or synthetic fiber such as polyester, polyamide, of polyethylene, in particular high modulus and high tenacity polyethylene, aramid or para-aramid, or a mixture of several types of fibers.
- the textile support is cotton.
- the textile support layer which is in contact with the skin of the user, is intended both to promote the mechanical strength of the article of the invention and to offer a pleasant contact to the user during long use. .
- the latex layer (i) is chosen for its chemical barrier properties. It is chosen from natural latices and synthetic latices.
- a natural latex layer has the advantage of giving greater flexibility to the protective articles and, at equal thickness, of being less expensive than a layer of synthetic latex.
- the latex layer may constitute the first or the second thickness of the protective article from the skin of the user and towards the outer face of the article. protection.
- the latex layer (i) may consist of a polychloroprene latex, but also a nitrile or butyl rubber, a polyvinyl chloride, a fluoroelastomer, a polyurethane, a chlorosulfonylpolyethylene, a chlorinated polyethylene, an ethylene acrylic, a polyacrylate or a combination of these materials.
- provision may be made for using a layer of natural latex to which a layer of synthetic latex is superimposed.
- the synthetic latex may constitute the support layer or the second or third layer of the protection article of the invention.
- the last layer of latex is covered with an adhesion layer intended to promote better adhesion of the polyvinyl alcohol layer to the latex.
- This intermediate adhesion layer may consist of any material known to those skilled in the art and capable of performing this function. It may be in particular a mixture of latex, identical to that used in (i) and PVA used in (ii). Preferably, a mixture of an acrylic latex and PVA used in (ii) is chosen.
- the adhesion layer improves the mechanical strength of the protective article, particularly its peel strength, and contributes to the flexibility of the article.
- the application of the adhesion layer may be replaced by the application of a coagulant of the polyvinyl alcohol.
- a layer (ii) of polyvinyl alcohol (PVA) is then provided, either directly on the latex, or on the intermediate adhesion layer, or on the PVA coagulant.
- This layer (ii) consists of partially hydrolyzed polyvinyl alcohol having a degree of hydrolysis of between 70 and 95%, preferably between 85 and 90%.
- the layer (iii) of synthetic latex may consist of any synthetic latex as already described above for layer (i).
- the layer (iii) of synthetic latex is chosen from acrylic latices, styrene-butadiene latices and self-crosslinking nitrile latices.
- the layer (iii) of synthetic latex also comprises polyvinyl alcohol.
- the polyvinyl alcohol used in layer (iii) has any degree of hydrolysis. Preferably, it has a degree of hydrolysis of between 70 and 95%.
- the polyvinyl alcohol of layer (iii) is the same as that of layer (ii).
- the proportion of latex and polyvinyl alcohol in the mixture of the layer (iii) is between 3 and 10%, preferably 4 to 8% of polyvinyl alcohol, by weight of active material relative to the weight of synthetic latex.
- the outer layer (iv) is advantageously constituted by a mixture of silica in aqueous dispersion and a cationic fluorinated resin.
- the silica is a precipitated silica or a fumed silica.
- the silica is a fumed silica of colloidal nature.
- the latex of the layer (i) or the PVA of the layer (ii), the latex of the layer (iii) and optionally the mixture of the layer (iv) can be applied repeatedly with a drying step intermediate between two applications.
- the protective article of the invention comprises a layer thickness (i) of natural or synthetic latex ranging from 100 to 400 microns.
- the protective article of the invention comprises a layer of polyvinyl alcohol (ii) with a thickness of between 30 and 200 ⁇ m.
- the protective article of the invention comprises a layer thickness (ii) of PVA, with a hydrolysis rate ranging from 70 to 95%, from 60 to 150 ⁇ m and a thickness of synthetic latex layer (iii). with a thickness of 10 to 20 ⁇ m.
- the protective article of the invention comprises a layer of mixture (iv) of silica and fluororesin with a thickness ranging from 1 to 5 microns.
- the thickness of the adhesion layer is between 5 and 50 microns.
- the resistance to penetration by solvents of the protective articles of the invention is greater than the sum of the strengths of each of the constituent materials of these articles.
- Polychloroprene and partially hydrolyzed PVAs are known for their resistance to permeation by chemicals.
- the materials of the invention when present in the same protection article and in the order indicated above, make it possible to obtain a protection much higher than the sum of the protections conferred by each of the individual materials.
- the protective articles of the invention have good water resistance and are of satisfactory flexibility.
- Another object of the invention is a method of producing a protective article for protecting the manipulator from the risks associated with the use of chemicals.
- Such a method comprises the following steps: a) optionally, dressing a mold with a textile layer; b) optionally dipping the mold or the mold / textile assembly resulting from step a) in a coagulating solution; c) dipping the mold or the mold / textile assembly from step a) or step b) into one or more aqueous dispersions of natural or synthetic latex (i); d) optionally dipping the coated mold from step c) in water to allow removal of the coagulant solution; e) drying and optionally vulcanization of the coated mold from step c) or step d); f) optionally dipping the coated mold obtained at the end of step c), d) or e) in one or more adhesion layers; g) dipping the coated mold obtained at the end of step c) or step d) or e) or f) in one or more aqueous solutions of partially hydrolyzed PVA of hydrolysis rate of between 70 and 95; %.
- step g) dipping the coated mold obtained at the end of step g) in one or more aqueous dispersions of self-crosslinking synthetic latex, preferably chosen from acrylic latices, styrene-butadiene latices or nitrile latices; i) non-obligatorily, but preferably, dipping of the coated mold obtained at the end of step h) in one or more aqueous dispersions of a cationic fluorinated resin comprising silica; and in the final step: j) removal of the glove by sliding on the mold.
- aqueous dispersions of self-crosslinking synthetic latex preferably chosen from acrylic latices, styrene-butadiene latices or nitrile latices
- the textile support, or the mold is coated with natural or synthetic latex by a quenching operation known to those skilled in the art.
- Each quenching step is optionally followed by drying and a step of vulcanization or gelling in an oven.
- the invention provides for dipping the optionally coated mold in a solution for coagulating the latex, then drying, then optionally soaking in one or more synthetic elastomer baths, each quenching being followed by drying until complete coagulation of the elastomer and then rinsing in water or in any solvent allowing the removal of the coagulant solution.
- each dipping step f) to i) is followed by drying for a period of 5 minutes to about 1 hour, at a temperature of 30 to 90 ° C.
- the dipping technique is particularly suitable for the manufacture of protective equipment such as gloves, overboots, and more generally, all items having a three-dimensional structure
- a protection article according to the invention by using other technologies known to those skilled in the art such as coating, since the succession of the layers of materials described above is reconstituted in the order indicated.
- the invention further relates to the protective articles described above and characterized in that they are in the form of a glove, an overboot, a combination, a hood, a tarpaulin , pants, jacket.
- aqueous solutions of polyvinyl alcohol being generally very dilute, it is preferably carried out several successive dipping in step g).
- Manufacture of a glove a- One dresses a shape using a cotton textile. b- The dressed form is soaked for 10 seconds in a coagulating solution. c- The dressed shape is soaked for 120 seconds in a natural latex bath. The form is then quenched for 20 seconds in a polychloroprene latex bath. This operation is repeated so as to form a second layer of polychloroprene latex. The shape is then soaked in water to allow the removal of the coagulating solution. After drying and vulcanization of the preceding layers, the form is soaked for 5 seconds in a bath consisting of:
- the percentages are given by weight of dry matter in the composition.
- the composition is in the form of an aqueous dispersion at 30% solids content. After drying for 15 minutes at 75 ° C., the form is soaked for 5 seconds in a bath consisting of:
- the percentages are given by weight of dry matter in the composition.
- the composition is in the form of an aqueous dispersion containing 12% solids. Operation g- is repeated a second time. After drying for 30 minutes at 75 ° C., the form is soaked for 5 seconds in a bath consisting of:
- composition 1.5% by weight of an acid catalyst (diammonium chloride). The percentages are given by weight of dry matter in the composition.
- the composition is in the form of an aqueous dispersion containing 28% solids. After drying for 30 minutes at 85 ° C., the form is soaked for 2 seconds in a bath consisting of: 71% by weight of water
- colloidal silica (Bindzil marketed by the company Eka Chemicals)
- the percentages are given by weight of dry matter in the composition.
- the composition is in the form of an aqueous dispersion containing 18% solids.
- the glove is crosslinked by heating at 120 ° C. for 30 minutes and it is demolded.
- Example 1 The process of Example 1 is repeated by eliminating step (i-) and using in step (h-) a dispersion consisting of:
- the percentages are given by weight of active ingredient in the composition.
- the composition is in the form of an aqueous dispersion containing 40% solids.
- Example 1 The process of Example 1 is repeated by eliminating step (i-) and using in step (h-) a dispersion consisting of:
- composition is in the form of an aqueous dispersion at 45% solids content.
- pellets are then fixed in each of the absorption cells, the external face being placed towards the side containing the demineralized water.
- This method determines the water swelling of the outside of a glove.
- the principle is based on the ability of a film to swell in contact with water.
- the glove of the invention (Example 1) has a mass swelling evaluated by its variation index of 8.7% by weight after 90 minutes without visual degradation.
- the good water resistance of the glove of the invention can be illustrated by the test below.
- the multilayer glove of Example 1 has peel strengths between layers (ii) and (i) of a minimum value of 4.5 N / cm according to the standard ISO 36.
- this glove has the following mechanical properties according to EN 374-3.
- Abrasion Level 3 Cleavage: Level 1 Tearing: Level 4 Perforation: Level 1.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Gloves (AREA)
- Laminated Bodies (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0600947A FR2896667B1 (fr) | 2006-02-02 | 2006-02-02 | Gant a haute resistance chimique |
| PCT/FR2007/000163 WO2007088265A2 (fr) | 2006-02-02 | 2007-01-29 | Gant a haute resistance chimique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1983854A2 true EP1983854A2 (fr) | 2008-10-29 |
| EP1983854B1 EP1983854B1 (fr) | 2009-07-01 |
Family
ID=37398764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07730881A Not-in-force EP1983854B1 (fr) | 2006-02-02 | 2007-01-29 | Gant a haute resistance chimique |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090068443A1 (fr) |
| EP (1) | EP1983854B1 (fr) |
| JP (1) | JP2009525411A (fr) |
| AT (1) | ATE434949T1 (fr) |
| DE (1) | DE602007001448D1 (fr) |
| FR (1) | FR2896667B1 (fr) |
| WO (1) | WO2007088265A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022103308A1 (de) | 2022-02-11 | 2023-08-17 | Uvex Safety Gloves Gmbh & Co. Kg | Verfahren zur Herstellung von Chemieschutzkleidung sowie eine solche |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2572394A1 (fr) * | 2004-08-16 | 2006-03-02 | Behrouz Vossoughi | Gant de sechage |
| AU2009339262C1 (en) | 2009-02-05 | 2015-08-13 | Diptech Pte Limited | Production of elastomeric films |
| US20120047626A1 (en) * | 2010-08-24 | 2012-03-01 | Honeywell International Inc. | Seamless Chemical Resistant Glove |
| DE102011101800A1 (de) * | 2011-05-17 | 2012-11-22 | Mattias Finzelberg | Schutzhandschuh |
| DE102011107443A1 (de) * | 2011-07-08 | 2013-01-10 | Mattias Finzelberg | Schutzhandschuh mit textilem Innenfutter |
| US9538952B2 (en) | 2012-10-30 | 2017-01-10 | Medicametrix, Inc. | Controller for measuring prostate volume |
| US9402564B2 (en) * | 2012-10-30 | 2016-08-02 | Medicametrix, Inc. | Prostate glove with measurement grid |
| US9402547B2 (en) | 2012-10-30 | 2016-08-02 | Medicametrix, Inc. | Prostate glove with receiver fibers |
| JP6068094B2 (ja) * | 2012-10-31 | 2017-01-25 | ショーワグローブ株式会社 | 手袋 |
| US20140165263A1 (en) * | 2012-12-18 | 2014-06-19 | Ansell Limited | Fluid repellent elastomeric barrier |
| US11825887B2 (en) | 2013-07-22 | 2023-11-28 | Summit Glove Inc. | Protective device for use with a glove |
| US10143248B2 (en) * | 2015-06-19 | 2018-12-04 | Summit Glove Inc. | Safety glove with fingertip protective member |
| US12156552B2 (en) | 2013-07-22 | 2024-12-03 | Summit Glove Inc. | Protective device for use with a glove |
| US10980295B2 (en) | 2013-07-22 | 2021-04-20 | Summit Glove Inc. | Protective device for use with a glove |
| US9380794B2 (en) | 2013-07-22 | 2016-07-05 | Summit Glove Inc. | Method and system for tracking glove failure |
| US20170099891A1 (en) | 2013-07-22 | 2017-04-13 | Summit Glove Inc. | Protective device for use with a glove |
| US11219253B2 (en) * | 2015-06-19 | 2022-01-11 | Summit Glove Inc. | Safety glove with fingertip protective member |
| US11925222B2 (en) | 2015-06-19 | 2024-03-12 | Summit Glove Inc. | Safety glove with fingertip protective member |
| US11925221B2 (en) | 2013-07-22 | 2024-03-12 | Summit Glove Inc. | Protective device for use with a glove having textured grip |
| US10750803B2 (en) | 2013-07-22 | 2020-08-25 | Summit Glove Inc. | Protective device for use with a glove |
| US10154699B2 (en) * | 2015-09-10 | 2018-12-18 | Ansell Limited | Highly chemical resistant glove |
| JP7034070B2 (ja) | 2015-10-18 | 2022-03-11 | アレジアンス、コーポレイション | 水系ヒドロゲルブレンドコーティングおよびエラストマー物品への塗布方法 |
| US11638552B2 (en) | 2015-12-22 | 2023-05-02 | Medicametrix, Inc. | Prostate glove, fingertip optical encoder, connector system, and related methods |
| JP7493745B2 (ja) * | 2019-11-18 | 2024-06-03 | 中興化成工業株式会社 | 離型シート |
| CN113429643B (zh) * | 2021-05-31 | 2022-11-25 | 中国工程物理研究院材料研究所 | 一种多材质复合橡胶制品及其制备方法 |
| US12178268B2 (en) | 2022-07-27 | 2024-12-31 | Summit Glove Inc. | Protective device for use with a glove |
| CN116941841A (zh) * | 2023-07-26 | 2023-10-27 | 台州达顿安防科技有限公司 | 一种聚乙烯醇防化手套及其制作方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438709A (en) * | 1992-03-20 | 1995-08-08 | Johnson & Johnson Orthopaedics, Inc. | Lubricous gloves and method for making lubricous gloves |
| US5357636A (en) * | 1992-06-30 | 1994-10-25 | Dresdner Jr Karl P | Flexible protective medical gloves and methods for their use |
| GB2285411B (en) * | 1993-12-22 | 1997-07-16 | Kimberly Clark Co | Process of manufacturing a water-based adhesive bonded, solvent resistant protective laminate |
| US5649326A (en) * | 1994-11-18 | 1997-07-22 | Johnson & Johnson Professional, Inc. | Flexible hydrophilic coating for orthopaedic casting gloves and method for making such gloves |
| JP2001207314A (ja) * | 2000-01-31 | 2001-08-03 | Honny Chem Ind Co Ltd | ゴム製手袋及びその製造方法 |
-
2006
- 2006-02-02 FR FR0600947A patent/FR2896667B1/fr not_active Expired - Fee Related
-
2007
- 2007-01-29 JP JP2008552843A patent/JP2009525411A/ja active Pending
- 2007-01-29 EP EP07730881A patent/EP1983854B1/fr not_active Not-in-force
- 2007-01-29 US US12/161,973 patent/US20090068443A1/en not_active Abandoned
- 2007-01-29 AT AT07730881T patent/ATE434949T1/de not_active IP Right Cessation
- 2007-01-29 DE DE200760001448 patent/DE602007001448D1/de not_active Expired - Fee Related
- 2007-01-29 WO PCT/FR2007/000163 patent/WO2007088265A2/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007088265A2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022103308A1 (de) | 2022-02-11 | 2023-08-17 | Uvex Safety Gloves Gmbh & Co. Kg | Verfahren zur Herstellung von Chemieschutzkleidung sowie eine solche |
| WO2023152176A1 (fr) | 2022-02-11 | 2023-08-17 | Uvex Safety Gloves Gmbh & Co. Kg | Procédé de production de vêtements de protection chimique et vêtement de protection chimique |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2896667A1 (fr) | 2007-08-03 |
| FR2896667B1 (fr) | 2008-04-11 |
| DE602007001448D1 (de) | 2009-08-13 |
| EP1983854B1 (fr) | 2009-07-01 |
| WO2007088265A2 (fr) | 2007-08-09 |
| ATE434949T1 (de) | 2009-07-15 |
| JP2009525411A (ja) | 2009-07-09 |
| WO2007088265A3 (fr) | 2007-09-20 |
| US20090068443A1 (en) | 2009-03-12 |
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