EP1030883A4 - Elastomeric articles from a blend of polychloroprene and acrylonitrile - Google Patents
Elastomeric articles from a blend of polychloroprene and acrylonitrileInfo
- Publication number
- EP1030883A4 EP1030883A4 EP98956637A EP98956637A EP1030883A4 EP 1030883 A4 EP1030883 A4 EP 1030883A4 EP 98956637 A EP98956637 A EP 98956637A EP 98956637 A EP98956637 A EP 98956637A EP 1030883 A4 EP1030883 A4 EP 1030883A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer
- butadiene
- weight
- parts
- acrylonitrile
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 229920001084 poly(chloroprene) Polymers 0.000 title claims abstract description 18
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 title claims description 8
- 229920002959 polymer blend Polymers 0.000 claims abstract description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 24
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000002825 nitriles Chemical class 0.000 claims abstract description 14
- 229920001577 copolymer Polymers 0.000 claims description 25
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 21
- 229920001971 elastomer Polymers 0.000 claims description 17
- 239000000806 elastomer Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- IVBPWRJIKBNGEP-UHFFFAOYSA-N 2-bromo-3-chlorobuta-1,3-diene Chemical compound ClC(=C)C(Br)=C IVBPWRJIKBNGEP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- GVTJVTFUVRQJKK-UHFFFAOYSA-N 2,3-dibromobuta-1,3-diene Chemical compound BrC(=C)C(Br)=C GVTJVTFUVRQJKK-UHFFFAOYSA-N 0.000 claims description 4
- LIFLRQVHKGGNSG-UHFFFAOYSA-N 2,3-dichlorobuta-1,3-diene Chemical compound ClC(=C)C(Cl)=C LIFLRQVHKGGNSG-UHFFFAOYSA-N 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 3
- 230000002040 relaxant effect Effects 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims 4
- 239000003431 cross linking reagent Substances 0.000 claims 1
- 229920006173 natural rubber latex Polymers 0.000 abstract description 15
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 6
- 229920002554 vinyl polymer Polymers 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 18
- 229920000126 latex Polymers 0.000 description 17
- 239000004816 latex Substances 0.000 description 17
- 238000007598 dipping method Methods 0.000 description 10
- 229920000459 Nitrile rubber Polymers 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- -1 poly(2-chloro-1 ,3- butadiene) Polymers 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 101000952180 Morus alba Mulatexin Proteins 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000013566 allergen Substances 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002009 allergenic effect Effects 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 208000007811 Latex Hypersensitivity Diseases 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229920013624 Tylac Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000021523 carboxylation Effects 0.000 description 1
- 238000006473 carboxylation reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 230000003655 tactile properties Effects 0.000 description 1
- 239000000080 wetting agent 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
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L11/00—Compositions of homopolymers or copolymers of chloroprene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L11/00—Compositions of homopolymers or copolymers of chloroprene
- C08L11/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L13/00—Compositions of rubbers containing carboxyl groups
- C08L13/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L13/00—Compositions of rubbers containing carboxyl groups
Definitions
- This invention relates to shaped elastomeric articles, in particular to gloves, condoms and breather bags, and to polymer blends and polymer blend compositions useful in the preparation of such articles.
- Elastomeric examination and surgeon's gloves as well as condoms and breather bags, dipped products (i.e., finger cots, catheters, balloons) and cast products (i.e., tourniquets, sheeting) are currently made from several different polymers.
- Non-natural rubber latex products have been developed to address the issues related to natural rubber latex allergy. These current materials lack the appropriate properties necessary to serve as a suitable substitute for natural rubber latex.
- individual polymers have specific chemical compatibility problems that limit their application in broad markets including health care, laboratory, emergency medical services and food handling.
- nitrile elastomer is a carboxylated nitrile-butadiene elastomer.
- the material of the Tillotson glove has a relatively low resilience; when a glove made of such material is stretched, the stress (i.e., pressure or force per unit area) exerted by the material quickly drops from its initial value. In other words, the material has a high permanent set.
- This invention provides a blend of a polychloroprene and a nitrile polymer that yields products of equivalent or similar feel and functionality compared to the common natural rubber latex glove. These products provide equal or better feel, comfort and fit than nitrile or vinyl gloves currently available.
- the invention further provides elastomeric films and shaped articles in film form, which are obtainable from the foregoing polymer blends on vulcanization or curing. Preferred shaped articles include gloves, condoms and breather bags and other dipped products.
- the polychloroprene and nitrile blended gloves, condoms and breathing bags of the invention are made from synthetic elastomers and are free of allergenic latex proteins. They are made using processes similar to current manufacturing processes and techniques. The products are resistant to oxygen and ozone. Such blends yield films that have greater elongation and quicker film rebound compared to the current nitrile or vinyl products available. The blend is also softer at lower temperatures compared to current nitrile products available. The blend is more gasoline and oil resistant than current polychloroprene products available. It is also less permeable to gases than current natural rubber latex products available.
- Tactile and physical properties of elastomers and gloves of this invention are similar to those of natural rubber latex and are better than those of other latex derived synthetic elastomers.
- Materials and articles of this invention have good chemical and puncture resistance, similar to those of other synthetic materials and better than those of natural rubber latex.
- materials and articles of this invention have all of the benefits of synthetic materials, and articles, e.g., good chemical resistance, good puncture resistance and no known allergens, and yet feel like natural rubber latex.
- Materials and articles such as gloves of this invention maintain a greater percentage of initial stress over time than do nitrile elastomers and articles made therefrom. In other words, they undergo less relaxation.
- Nitrile elastomers have a high modulus and lower elasticity so that gloves made therefrom may cause hand fatigue, in contrast, gloves made from elastomers of this invention minimize hand fatigue. Nitrile elastomers also have a permanent set, so that the materials loses resiliency and elasticity the longer it is stretched. Materials of this invention are more like natural rubber latex than nitrile elastomers in this regard. Another advantage is that materials and gloves of this invention have no unpleasant odor, while nitrile gloves have an unpleasant odor which may bother both users and patients (e.g., dental patients).
- Fig. 1 is a graph comparing relaxation of stress over time in an elastomer latex material of this invention with prior art elastomer latex materials.
- Fig. 2 is a bar graph showing puncture resistance in an elastomer latex material of this invention and in prior art elastomer latex materials.
- the invention comprises elastomeric articles, in particular gloves, condoms and breathing bags constructed from a polychloroprene (or chloroprene polymer) and an acrylonitrile copolymer.
- polychloroprene or chloroprene polymer
- chloroprene polymer an acrylonitrile copolymer.
- polychloroprene and chloroprene polymer are used herein to denote both poly(2-chloro-1 ,3- butadiene) homopolymer and copolymers of said 2-chloro-1 ,3-butadiene with one or more additional halogenated monomers.
- 2-chloro-1 ,3-butadiene which is also known as chloroprene
- the acrylonitrile copolymer is preferably a carboxylated copolymer of acrylonitrile and butadiene. However, acrylonitrile- butadiene copolymers which are not carboxylated are also useful.
- Carboxylation is obtained by copolymerization of acrylonitrile and butadiene with a small amount (typically less than 10%) of a monomer such as acrylic acid, or methacrylic acid, or an ester thereof, such as methyl methacrylate.
- a polymer blend as herein described, together with additional ingredients will be described below, is vulcanized or cured to yield an elastomer in film form.
- the total blended film thickness is about 0.05 - 50 mils., preferably about 0.1-20 mils.
- the blended film is characterized as having a tensile strength of at least (i.e., equal to or greater than) 9 MPA, preferably at least 12.5 MPA, and an elongation equal to or greater than 300%, preferably at least 500%.
- the products are further characterized as having no latex protein allergens, low modulus, high elongation, good tensile strength, high puncture resistance, good UV (ultra-violet) resistance, good chemical resistance, and good film rebound.
- the invention also comprises compositions and blending steps useful in producing blended elastomeric products of the types described above.
- a general formula of an unvulcanized or uncured polymer blend composition according to this invention is set forth in Table 1. Ingredients other than the polymer blend shown in Table 1 may be conventional.
- Polymer blending takes place prior to vulcanization.
- a dipping form of desired shape is dipped into either a single polymer blend latex bath containing a polymer blend composition as shown in Table 1 , or into two separate polymer latex dipping baths, the first containing one of the polymers of the blend (say polychloroprene copolymer), the second containing the other polymer (say the acrylonitrile copolymer).
- the desired polymer blend is formed on the dipping form in the latter case.
- a single bath is preferred.
- the dipping form is dipped into a coagulant bath and dried before it is dipped into a latex bath, whether a single latex bath or two latex baths are used.
- the latex coated dipping form may be dipped into a warm water leach bath if desired.
- the latex coated dipping form (or former) is then heated in an oven to cure the polymer blend latex.
- the shape of the dipping form governs the shape of the article obtained.
- a glove-shaped dipping form is used to obtain a polymer blend latex glove.
- a condom-shaped dipping form is used to obtain a condom
- a breather bag-shaped dipping form is used to obtain a breather bag.
- films of this invention can be made by casting. Known casting techniques can be used.
- a polymer blend as shown in Table 1 above may comprise about 10 to about 90 parts by weight of polychloroprene (homopolymer or copolymer) and about 10 to 90 parts by weight of acrylonitrile copolymer as described above.
- the invention is summarized as an elastomeric film article (such as a glove) comprising a layer of elastomeric material which is constructed of a blend of about 10-90 parts by weight polychloroprene (homopolymer or copolymer) and about 10-90 parts by weight acrylonitrile copolymer with a tensile strength greater than 9 MPA and an elongation greater than 300%.
- Preferred tensile strength is at least 12.5 MPA
- preferred elongation is at least 500%.
- This layer of elastomeric material is substantially impermeable to water and water vapor, has a thickness such that it is capable of being stretched to fit securely about a human body member and to conform to the configuration of said human body member, thereby exerting an initial pressure on said human body member, and then relaxing to exert on said body member a reduced pressure, greater than 60% of said initial pressure one minute after being stretched and greater than 50% of said initial pressure ten minutes after being stretched. More particularly, this layer has a thickness from about 0.05 to about 50 mils., preferably from about 0.1 to 20 mils., and constitutes the entire thickness of the article. More preferably the blend contains about 25-75 parts by weight polychloroprene and about 25-75 parts by weight acrylonitrile butadiene.
- the polychloroprene may comprise poly(2-chloro-1 ,3-butadiene) or a copolymer comprising 2-chloro-1 ,3-butadiene and one or more of 2,3-dichloro-1 , 3-butadiene, 2,3-dibromo-1 ,3-butadiene, 2-chloro-3-bromo-1 ,3-butadiene or 2- bromo-3-chloro-1 , 3-butadiene, or 1 , 3-butadiene.
- the acrylonitrile copolymer comprises a carboxylated copolymer of acrylonitrile and butadiene.
- An elastomeric glove of this invention is characterized as having no latex protein allergens, low modulus, high elongation, high puncture resistance, high cut resistance, good UV (ultra-violet) resistance, good chemical resistance, and good film rebound. Elastomeric films, condoms and breather bags possess these same properties.
- Polymer blend elastomers of this invention also exhibit greater oil and chemical resistance (especially to oils and non-polar hydrocarbons) than natural rubber latex and better dexterity compared to nitrile.
- elastomeric polymer blend films of this invention and articles (such as gloves) made therefrom is high stress retention (or low relaxation) when subjected to a strain (or deformation) which remains constant over time.
- a polymer blend film or article of this invention maintains greater than 60% of its initial stress after one minute and greater than 50% after 10 minutes.
- Fig. 1 shows stress retention (as the percentage of initial stress) as a function of time (in minutes) for a polymer blend elastomer of this invention (denoted “NeoPro" in Fig. 1 ) and prior art elastomers, i.e., nitrile, vinyl and natural rubber latex.
- the elastomer of this invention (NeoPro) had better stress retention than either of the other synthetic polymers.
- Only natural rubber latex exhibited better stress retention. Disadvantages of natural rubber latex, including allergenic tendencies, lower puncture resistance and lower oil resistance are well known.
- Fig. 1 shows stress retention (as the percentage of initial stress) as a function of time (in minutes) for a polymer blend elastomer of this invention (denoted “NeoPro" in Fig. 1 ) and prior art elastomers, i.e., nitrile, vinyl and natural rubber latex.
- the elastomer of this invention (
- Gloves can be made as follows.
- a latex material having the formula set forth in Table 2 is prepared.
- the referenced Parts Per Hundred Rubber (phr) are by weight and are based on dry material. Often, the material is in liquid form at various solid percentages by weight.
- the sulfur is a crosslinker
- the zinc dibutyl dithiocarbamate is an accelerator
- the zinc oxide is an accelerator and cure agent
- the phenolic antioxidant is an antidegradant
- the potassium hydroxide is a pH stabilizer
- the stabilizing surfactant is a stabilizer and wetting agent
- the paraffin wax is a softener.
- Clean porcelain formers are dipped into a coagulant comprising a mixture of calcium salts (i.e., calcium nitrate, calcium chloride), water and non-ionic surfactant and dried. Then the formers are dipped into the latex blend (Table 2). The latex coated formers are then leached dried and cured in an oven for 20 minutes at 235 degrees Fahrenheit. After curing, the coated formers may be leached once again in hot water and then dipped in a slurry containing water and slip agent and dried. The gloves are then stripped from the formers.
- a coagulant comprising a mixture of calcium salts (i.e., calcium nitrate, calcium chloride), water and non-ionic surfactant and dried. Then the formers are dipped into the latex blend (Table 2). The latex coated formers are then leached dried and cured in an oven for 20 minutes at 235 degrees Fahrenheit. After curing, the coated formers may be leached once again in hot
- Neoprene 750 was obtained from DuPont Dow Elastomers L.L.C., Wilmington, Delaware.
- Tylac 68073 was obtained from Reichold Chemicals, Inc., Reserch Triangle Park, North Carolina.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6474297P | 1997-11-07 | 1997-11-07 | |
US64742P | 1997-11-07 | ||
PCT/US1998/023640 WO1999024507A1 (en) | 1997-11-07 | 1998-11-06 | Elastomeric articles from a blend of polychloroprene and acrylonitrile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1030883A1 EP1030883A1 (en) | 2000-08-30 |
EP1030883A4 true EP1030883A4 (en) | 2005-09-21 |
Family
ID=22057996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98956637A Withdrawn EP1030883A4 (en) | 1997-11-07 | 1998-11-06 | Elastomeric articles from a blend of polychloroprene and acrylonitrile |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1030883A4 (en) |
JP (1) | JP2001522921A (en) |
AU (1) | AU741202B2 (en) |
CA (1) | CA2303375A1 (en) |
ID (1) | ID25890A (en) |
WO (1) | WO1999024507A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6195805B1 (en) * | 1998-02-27 | 2001-03-06 | Allegiance Corporation | Powder free neoprene surgical gloves |
US6000061A (en) * | 1998-11-18 | 1999-12-14 | Pt. Irama Dinamika Latex | Glove made from a blend of chloroprene rubber and a carboxylated synthetic butadiene rubber |
US6451893B1 (en) * | 2001-05-22 | 2002-09-17 | Microflex Corporation | Soft nitrile zinc oxide free medical gloves |
GB0211027D0 (en) | 2002-05-14 | 2002-06-26 | Ssl Internat | Double-donnable glove |
MX2010001539A (en) | 2007-08-09 | 2010-06-17 | Playtex Products Llc | Polymer latex compound. |
PL2393650T3 (en) | 2009-02-05 | 2014-11-28 | Diptech Pte Ltd | Production of elastomeric films |
RU2550827C2 (en) * | 2013-07-01 | 2015-05-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Чувашский государственный университет имени И.Н. Ульянова" | Rubber mixture |
RU2547477C2 (en) * | 2013-07-09 | 2015-04-10 | Федеральное государственное унитарное предприятие "Научно-производственное предприятие "Прогресс" (ФГУП "НПП "Прогресс") | Oil-resistant rubber composition |
CN105492179B (en) | 2013-07-16 | 2019-03-08 | 皮肤防护有限公司 | The composition and the product made of the elastomer film for forming elastomer film |
US10626283B2 (en) * | 2013-11-19 | 2020-04-21 | Ansell Limited | Polymer blends of nitrile rubber and polychloroprene |
MX2017012386A (en) * | 2015-04-28 | 2017-12-14 | Avent Inc | Nitrile rubber glove with stretch modifier. |
US10154699B2 (en) | 2015-09-10 | 2018-12-18 | Ansell Limited | Highly chemical resistant glove |
MY190526A (en) * | 2016-12-30 | 2022-04-27 | Skinprotect Corp Sdn Bhd | Elastomeric film-forming compositions and associated articles and methods |
CN110054819B (en) * | 2019-04-22 | 2021-07-27 | 山东津莱环海医疗科技有限公司 | Neoprene anesthesia gas storage bag |
MY196386A (en) * | 2019-05-23 | 2023-03-28 | Top Glove Int Sdn Bhd | Elastomeric Article |
AU2022319176A1 (en) * | 2021-07-27 | 2024-03-07 | Ansell Limited | Accelerator free synthetic gloves with high tear resistance |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823024A (en) * | 1972-05-10 | 1974-07-09 | Grace W R & Co | Process for forming a strippable coating |
EP0486183A1 (en) * | 1990-11-14 | 1992-05-20 | Reichhold Chemicals, Inc. | Latex gloves with improved donnability |
WO1996040306A1 (en) * | 1995-06-07 | 1996-12-19 | Allegiance Corporation | Surgeon's gloves from neoprene copolymers |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3943192A (en) * | 1968-03-05 | 1976-03-09 | Polysar Limited | Elastomeric blends |
US4048261A (en) * | 1975-11-10 | 1977-09-13 | The B. F. Goodrich Company | Vulcanizable compositions of a halogen-containing polymer and a diene-nitrile rubber having active halogen cure sites |
DE3934954A1 (en) * | 1989-10-20 | 1991-04-25 | Bayer Ag | RUBBER MIXTURES OF POLYCHLOROPRENE AND HYDROGENATED NITRIL RUBBER |
-
1998
- 1998-11-06 AU AU13114/99A patent/AU741202B2/en not_active Ceased
- 1998-11-06 CA CA002303375A patent/CA2303375A1/en not_active Abandoned
- 1998-11-06 ID IDW20000405A patent/ID25890A/en unknown
- 1998-11-06 JP JP2000520509A patent/JP2001522921A/en active Pending
- 1998-11-06 EP EP98956637A patent/EP1030883A4/en not_active Withdrawn
- 1998-11-06 WO PCT/US1998/023640 patent/WO1999024507A1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US3823024A (en) * | 1972-05-10 | 1974-07-09 | Grace W R & Co | Process for forming a strippable coating |
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Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
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ID25890A (en) | 2000-11-09 |
AU741202B2 (en) | 2001-11-22 |
JP2001522921A (en) | 2001-11-20 |
EP1030883A1 (en) | 2000-08-30 |
WO1999024507A1 (en) | 1999-05-20 |
AU1311499A (en) | 1999-05-31 |
CA2303375A1 (en) | 1999-05-20 |
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