US20070157363A1 - Glove having butyl rubber layer to provide resistance to ketone family chemicals - Google Patents
Glove having butyl rubber layer to provide resistance to ketone family chemicals Download PDFInfo
- Publication number
- US20070157363A1 US20070157363A1 US11/328,123 US32812306A US2007157363A1 US 20070157363 A1 US20070157363 A1 US 20070157363A1 US 32812306 A US32812306 A US 32812306A US 2007157363 A1 US2007157363 A1 US 2007157363A1
- Authority
- US
- United States
- Prior art keywords
- layer
- glove
- rubber latex
- butyl
- ketone family
- 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.)
- Abandoned
Links
- 229920005549 butyl rubber Polymers 0.000 title claims abstract description 9
- 150000002576 ketones Chemical class 0.000 title abstract description 10
- 239000000126 substance Substances 0.000 title abstract description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 18
- 238000007598 dipping method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 13
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 11
- 239000002904 solvent Substances 0.000 abstract description 11
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 abstract description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 5
- 229920006173 natural rubber latex Polymers 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000009472 formulation Methods 0.000 abstract description 3
- 229920000126 latex Polymers 0.000 abstract description 3
- 239000004816 latex Substances 0.000 abstract description 3
- 239000002174 Styrene-butadiene Substances 0.000 abstract description 2
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 abstract description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001084 poly(chloroprene) Polymers 0.000 abstract description 2
- 229920001195 polyisoprene Polymers 0.000 abstract description 2
- 239000011115 styrene butadiene Substances 0.000 abstract description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract description 2
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 2
- 229920006174 synthetic rubber latex Polymers 0.000 abstract description 2
- 150000002825 nitriles Chemical class 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004971 Cross linker Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C09D123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C09D123/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
Definitions
- Gloves are used for their barrier characteristics to protect the wearer from chemicals and contamination.
- the structure and composition of the glove must be resistant to contamination to prevent contact with the wearer's skin.
- the structure and material of the glove can be tailored to provide protection from anticipated contaminants.
- Another object of the invention is to provide a multilayer glove having a barrier layer of a material resistant to ketone family solvents.
- a laminate of three layers includes a middle butyl rubber layer, whereas the inner layer and outer layer materials could be chosen from natural rubber latex, carboxylated acrylonitrile butadiene rubber latex, polychloroprene, polyisoprene, carboxylated styrene butadiene, and other synthetic elastomers. Even with one material used for both inner layer and outer layer, different formulations could be used.
- the resultant multilayer structure provides good resistance to ketone family chemicals such as acetone and MEK.
- the glove also exhibits superior or much improved resistance to solvent such as DMSO, chloroform, methanol, et al as compared to currently commercially available thin wall gloves made from natural rubber latex and carboxylated acrylonitrile butadiene synthetic rubber latex.
- solvent such as DMSO, chloroform, methanol, et al
- the time elapsed before the material experiences breakthrough after exposure to a ketone family solvent is directly related to the thickness of the butyl layer.
- FIG. 1 is a view of the laminate of the invention.
- FIG. 2 depicts the method of making the glove.
- a three-layered sandwich structure shown in FIG. 1 contains an outer layer of nitrile rubber 10 , a middle layer of butyl rubber 20 and an inner layer of nitrile rubber 30 .
- This structure provides a resistance to ketone family member solvents. It is possible that other layers of other materials may be added or the three-layered sandwich structure may be repeated.
- each layer is as follows: Nitrile Layers Butyl Layer Base 100 parts 100 parts Zinc Oxide 1 part 5 parts (Primary activator) Sulfur (crosslinker) 1 part 3 parts ZDBC (accelerator) 1 part 2 parts Titanium Dioxide 1 part 0 parts (optional) BHT (antioxidant) 1 part 1 part Color pigment 0 parts 0 parts (optional)
- the base of the nitrile layer may be natural rubber latex or nitrile. Throughout the specification, the term ‘nitrile’ is used to encompass these two materials.
- the base for the butyl layer is butyl latex.
- Laminates made in accordance with the invention have demonstrated the following resistance: Acetone Butyl layer Total film Breakthrough Sample film thickness, mm thickness, mm time, min Nitrile x 0.1 ⁇ 0.12 1 1 ⁇ 0.04 ⁇ 0.1 15
- the three-layered laminate structure is easily formed into gloves by dipping a form 32 into a first vat of nitrile rubber 34 to form a first layer, allowing that layer to cure, then dipping the form 32 having the first layer of nitrile rubber into a second vat having butyl rubber 36 to form a middle layer and allowing the middle layer to cure. Finally, the form 32 is placed into a third vat having nitrile rubber 38 to form the third layer. After final curing, the gloves are removed from the form 32 . In the alternative, the form may be placed into the first vat 34 to form the third layer, thereby obviating the need for a third vat.
- the glove has the advantage of being formed on existing machinery using existing methods.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Gloves (AREA)
- Laminated Bodies (AREA)
Abstract
A laminate of three layers includes a middle butyl rubber layer, whereas the inner layer and outer layer materials could be chosen from natural rubber latex, carboxylated acrylonitrile butadiene rubber latex, polychloroprene, polyisoprene, carboxylated styrene butadiene, and other synthetic elastomers. Even with one material used for both inner layer and outer layer, different formulations could be used. The resultant multilayer structure provides good resistance to ketone family chemicals such as acetone and MEK. The glove also exhibits superior or much improved resistance to solvent such as DMSO, chloroform, methanol, et al as compared to currently commercially available thin wall gloves made from natural rubber latex and carboxylated acrylonitrile butadiene synthetic rubber latex. The time elapsed before the material experiences breakthrough after exposure to a ketone family solvent is directly related to the thickness of the butyl layer.
Description
- Gloves are used for their barrier characteristics to protect the wearer from chemicals and contamination. The structure and composition of the glove must be resistant to contamination to prevent contact with the wearer's skin. The structure and material of the glove can be tailored to provide protection from anticipated contaminants.
- Published patent applications disclose the structure of gloves resistant to solvents. One such published patent application is 2003/0075828 to Thomas et al disclosing a solid resistant glove formed from multilayers having an elastomeric substrate comprising nitrile rubber. Other published patent applications, 2004/0036196 to Conley and 2004/0107477 to Janssen, disclose surgical or medical gloves made from nitrile rubber and impermeable to many solvents. None of these published patent applications discloses the use of different materials to enhance resistance to chemical solvents and none uses a butyl layer to provide resistance to ketone family solvents.
- It is an object of the invention to provide a material resistant to ketone family solvents to be made into gloves.
- Another object of the invention is to provide a multilayer glove having a barrier layer of a material resistant to ketone family solvents.
- It is another object of the invention to provide a glove made of multiple materials that can be made on existing equipment.
- It is another object of the invention to provide a ketone family resistant glove that is inexpensive to manufacture.
- These and other objects of the invention will become apparent to one of ordinary skill in the art after reading the disclosure of the invention.
- A laminate of three layers includes a middle butyl rubber layer, whereas the inner layer and outer layer materials could be chosen from natural rubber latex, carboxylated acrylonitrile butadiene rubber latex, polychloroprene, polyisoprene, carboxylated styrene butadiene, and other synthetic elastomers. Even with one material used for both inner layer and outer layer, different formulations could be used. The resultant multilayer structure provides good resistance to ketone family chemicals such as acetone and MEK. The glove also exhibits superior or much improved resistance to solvent such as DMSO, chloroform, methanol, et al as compared to currently commercially available thin wall gloves made from natural rubber latex and carboxylated acrylonitrile butadiene synthetic rubber latex. The time elapsed before the material experiences breakthrough after exposure to a ketone family solvent is directly related to the thickness of the butyl layer.
-
FIG. 1 is a view of the laminate of the invention; and -
FIG. 2 depicts the method of making the glove. - A three-layered sandwich structure shown in
FIG. 1 contains an outer layer ofnitrile rubber 10, a middle layer ofbutyl rubber 20 and an inner layer ofnitrile rubber 30. This structure provides a resistance to ketone family member solvents. It is possible that other layers of other materials may be added or the three-layered sandwich structure may be repeated. - The formulation of each layer is as follows:
Nitrile Layers Butyl Layer Base 100 parts 100 parts Zinc Oxide 1 part 5 parts (Primary activator) Sulfur (crosslinker) 1 part 3 parts ZDBC (accelerator) 1 part 2 parts Titanium Dioxide 1 part 0 parts (optional) BHT (antioxidant) 1 part 1 part Color pigment 0 parts 0 parts (optional)
The base of the nitrile layer may be natural rubber latex or nitrile. Throughout the specification, the term ‘nitrile’ is used to encompass these two materials. The base for the butyl layer is butyl latex. - Laminates made in accordance with the invention have demonstrated the following resistance:
Acetone Butyl layer Total film Breakthrough Sample film thickness, mm thickness, mm time, min Nitrile x 0.1˜0.12 1 1 ˜0.04 ˜0.1 15 -
MEK Butyl layer Total film Breakthrough Sample film thickness, mm thickness, mm time, min Nitrile x 0.1˜0.12 1 1 ˜0.02 ˜0.1 5 2 ˜0.04 ˜0.1 15 3 ˜0.06 ˜0.1 25 4 ˜0.09 ˜0.1 35 -
DMSO Butyl layer Total film Breakthrough Sample film thickness, mm thickness, mm time, min Nitrile x 0.1˜0.12 20 1 ˜0.04 ˜0.1 45 2 ˜0.07 ˜0.1 90 3 ˜0.1 ˜0.1 120 -
Chloroform Butyl layer Total film Breakthrough Sample film thickness, mm thickness, mm time, min Nitrile x 0.1˜0.12 1 1 ˜0.04 ˜0.1 5 -
Methanol Butyl layer Total film Breakthrough Sample film thickness, mm thickness, mm time, min Nitrile x 0.1˜0.12 50 1 ˜0.04 ˜0.1 >60, no BT at 60, tested time up to 60 minutes. - The three-layered laminate structure is easily formed into gloves by dipping a
form 32 into a first vat ofnitrile rubber 34 to form a first layer, allowing that layer to cure, then dipping theform 32 having the first layer of nitrile rubber into a second vat havingbutyl rubber 36 to form a middle layer and allowing the middle layer to cure. Finally, theform 32 is placed into a third vat havingnitrile rubber 38 to form the third layer. After final curing, the gloves are removed from theform 32. In the alternative, the form may be placed into thefirst vat 34 to form the third layer, thereby obviating the need for a third vat. The glove has the advantage of being formed on existing machinery using existing methods. - While the invention has been described with reference to a preferred embodiment, various modifications would be apparent to one of ordinary skill in the art without departing from the scope of the invention. The invention encompasses such various modifications.
Claims (6)
1. A glove, comprising
a first layer of nitrile rubber,
a second layer of butyl rubber, and
a third layer of nitrile rubber.
2. The glove of claim 1 , wherein
said first layer is an inner layer,
said second layer is a middle layer and
said third layer is an outer layer.
3. A method of forming a glove comprising
dipping a form into nitrile rubber to form a first layer,
dipping the form into butyl rubber to form a second layer, and
dipping said form into nitrile rubber to form a third layer.
4. The method of claim 3 , wherein
said nitrile rubber and butyl rubber are stored in vats.
5. The method of claim 3 , wherein
said form is dipped into a first vat having nitrile rubber, then
said form is dipped into a second vat having butyl rubber, then
said form is dipped into a third vat having nitrile rubber.
6. The method of claim 3 , wherein
said form is dipped into a first vat having nitrile rubber, then
said form is dipped into a second vat having butyl rubber, then
said form is dipped into said first vat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/328,123 US20070157363A1 (en) | 2006-01-10 | 2006-01-10 | Glove having butyl rubber layer to provide resistance to ketone family chemicals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/328,123 US20070157363A1 (en) | 2006-01-10 | 2006-01-10 | Glove having butyl rubber layer to provide resistance to ketone family chemicals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20070157363A1 true US20070157363A1 (en) | 2007-07-12 |
Family
ID=38231304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/328,123 Abandoned US20070157363A1 (en) | 2006-01-10 | 2006-01-10 | Glove having butyl rubber layer to provide resistance to ketone family chemicals |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US20070157363A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330309A (en) * | 2012-10-23 | 2013-10-02 | 镇江苏惠乳胶制品有限公司 | Multi-layer composite gloves |
| WO2017041134A1 (en) * | 2015-09-10 | 2017-03-16 | Ansell Limited | Highly chemical resistant glove |
| CN114316392A (en) * | 2022-02-25 | 2022-04-12 | 天津市橡胶工业研究所有限公司 | Butyronitrile protective gloves with lining long sleeves and preparation method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218779A (en) * | 1977-12-08 | 1980-08-26 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Chemical resistant article |
| US6021524A (en) * | 1997-12-31 | 2000-02-08 | The University Of Akron | Cut resistant polymeric films |
| US6391409B1 (en) * | 1999-02-12 | 2002-05-21 | Allegiance Corporation | Powder-free nitrile-coated gloves with an intermediate rubber-nitrile layer between the glove and the coating and method of making same |
| US6465591B1 (en) * | 2000-04-24 | 2002-10-15 | Avery Dennison Corporation | Acrylic emulsion coating for films, paper and rubber |
| US20030075828A1 (en) * | 1998-08-13 | 2003-04-24 | Thomas Jonathan David | Solvent resistant glove |
| US20040036196A1 (en) * | 2002-08-20 | 2004-02-26 | Kimberly-Clark Worldwide, Inc. | Powder-free nitrile gloves |
| US20040107477A1 (en) * | 2002-12-10 | 2004-06-10 | Kimberly-Clark Worldwide, Inc. | Crosslinking agent for coated elastomeric articles |
| US6759473B1 (en) * | 1999-11-18 | 2004-07-06 | Zeon Corporation | Coating material and molded article |
| US6805963B2 (en) * | 2002-12-12 | 2004-10-19 | Kimberly-Clark Worldwide, Inc. | Elastomeric articles with improved damp slip |
| US20040229054A1 (en) * | 2002-01-29 | 2004-11-18 | Elkcorp | Composite material |
| US20040231028A1 (en) * | 2003-05-22 | 2004-11-25 | Kimberly-Clark Worldwide, Inc. | Readily donned elastomeric article |
| US20040259446A1 (en) * | 2003-06-20 | 2004-12-23 | Jain Mukesh K. | Chemical protective articles of apparel and enclosures |
| US6850162B2 (en) * | 2000-04-12 | 2005-02-01 | Ansell Healthcare Products, Inc. | Communicative glove containing embedded microchip |
-
2006
- 2006-01-10 US US11/328,123 patent/US20070157363A1/en not_active Abandoned
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218779A (en) * | 1977-12-08 | 1980-08-26 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Chemical resistant article |
| US6021524A (en) * | 1997-12-31 | 2000-02-08 | The University Of Akron | Cut resistant polymeric films |
| US20030075828A1 (en) * | 1998-08-13 | 2003-04-24 | Thomas Jonathan David | Solvent resistant glove |
| US6391409B1 (en) * | 1999-02-12 | 2002-05-21 | Allegiance Corporation | Powder-free nitrile-coated gloves with an intermediate rubber-nitrile layer between the glove and the coating and method of making same |
| US6759473B1 (en) * | 1999-11-18 | 2004-07-06 | Zeon Corporation | Coating material and molded article |
| US6850162B2 (en) * | 2000-04-12 | 2005-02-01 | Ansell Healthcare Products, Inc. | Communicative glove containing embedded microchip |
| US6465591B1 (en) * | 2000-04-24 | 2002-10-15 | Avery Dennison Corporation | Acrylic emulsion coating for films, paper and rubber |
| US20040229054A1 (en) * | 2002-01-29 | 2004-11-18 | Elkcorp | Composite material |
| US20040036196A1 (en) * | 2002-08-20 | 2004-02-26 | Kimberly-Clark Worldwide, Inc. | Powder-free nitrile gloves |
| US20040107477A1 (en) * | 2002-12-10 | 2004-06-10 | Kimberly-Clark Worldwide, Inc. | Crosslinking agent for coated elastomeric articles |
| US6805963B2 (en) * | 2002-12-12 | 2004-10-19 | Kimberly-Clark Worldwide, Inc. | Elastomeric articles with improved damp slip |
| US20040231028A1 (en) * | 2003-05-22 | 2004-11-25 | Kimberly-Clark Worldwide, Inc. | Readily donned elastomeric article |
| US20040259446A1 (en) * | 2003-06-20 | 2004-12-23 | Jain Mukesh K. | Chemical protective articles of apparel and enclosures |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330309A (en) * | 2012-10-23 | 2013-10-02 | 镇江苏惠乳胶制品有限公司 | Multi-layer composite gloves |
| WO2014063415A1 (en) * | 2012-10-23 | 2014-05-01 | 镇江苏惠乳胶制品有限公司 | Multi-layered composite glove |
| WO2017041134A1 (en) * | 2015-09-10 | 2017-03-16 | Ansell Limited | Highly chemical resistant glove |
| US20170071271A1 (en) * | 2015-09-10 | 2017-03-16 | Ansell Limited | Highly chemical resistant glove |
| CN108024584A (en) * | 2015-09-10 | 2018-05-11 | 安塞尔有限公司 | Height chemical-resistant gloves |
| US10154699B2 (en) * | 2015-09-10 | 2018-12-18 | Ansell Limited | Highly chemical resistant glove |
| CN108024584B (en) * | 2015-09-10 | 2021-02-09 | 安塞尔有限公司 | Highly chemical resistant gloves |
| AU2016321449B2 (en) * | 2015-09-10 | 2021-02-25 | Ansell Limited | Highly chemical resistant glove |
| EP3346861B1 (en) | 2015-09-10 | 2022-01-19 | Ansell Limited | Highly chemical resistant glove |
| EP4005766A1 (en) * | 2015-09-10 | 2022-06-01 | Ansell Limited | Highly chemical resistant glove |
| US11825892B2 (en) | 2015-09-10 | 2023-11-28 | Ansell Limited | Highly chemical resistant glove |
| CN114316392A (en) * | 2022-02-25 | 2022-04-12 | 天津市橡胶工业研究所有限公司 | Butyronitrile protective gloves with lining long sleeves and preparation method thereof |
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| Date | Code | Title | Description |
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| AS | Assignment |
Owner name: FIRSTLIGHT FINANCIAL CORPORATION, AS AGENT, CONNEC Free format text: SECURITY AGREEMENT;ASSIGNOR:MICROFLEX CORPORATION;REEL/FRAME:020056/0001 Effective date: 20071031 |
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| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
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| AS | Assignment |
Owner name: MICROFLEX CORPORATION, ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:FIRSTLIGHT FINANCIAL CORPORATION;REEL/FRAME:027179/0257 Effective date: 20111101 |