US20140364544A1 - Coated elastomeric article and method for making a coated elastomeric article - Google Patents
Coated elastomeric article and method for making a coated elastomeric article Download PDFInfo
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- US20140364544A1 US20140364544A1 US14/462,712 US201414462712A US2014364544A1 US 20140364544 A1 US20140364544 A1 US 20140364544A1 US 201414462712 A US201414462712 A US 201414462712A US 2014364544 A1 US2014364544 A1 US 2014364544A1
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- elastomeric article
- silicone
- substrate
- collagen
- glove
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- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0014—Skin, i.e. galenical aspects of topical compositions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/14—Dipping a core
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3445—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/204—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with nitrogen-containing functional groups, e.g. aminoxides, nitriles, guanidines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/452—Lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
- C08J2321/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
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- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1317—Multilayer [continuous layer]
- Y10T428/1321—Polymer or resin containing [i.e., natural or synthetic]
-
- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
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- 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
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1386—Natural or synthetic rubber or rubber-like compound containing
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- 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]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
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- 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
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- Y10T428/31652—Of asbestos
- Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
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- 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
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- Y10T428/31725—Of polyamide
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- 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
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- Y10T428/31826—Of natural rubber
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- 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
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- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
Definitions
- the present invention relates generally to a protective elastomeric article, and more particularly to a protective elastomeric article, such as a glove, for medical and non-medical uses that is coated for beneficial effect.
- Disposable gloves made from various synthetic and natural raw materials are used to protect against transmission of viral and bacterial agents and other pathogens, and to protect against chemical and radiological contamination. Users who must wear gloves for extended periods often suffer from dried or chapped hands, skin irritation, hand fatigue and premature wrinkling.
- Aloe vera is used in many skin care products, but it has an oil content that can have an adverse reaction when used with natural rubber and other materials, breaking down capability of rubber to act as a barrier.
- Some gloves also use lotions, which may have a similar effect on the barrier properties of gloves made from different raw materials.
- Other coatings used in gloves include cucumber extract and/or glycerin, but there is no evidence that common moisturizers used singly or in combination with another, have significantly improved the therapeutic properties of a disposable glove.
- Water soluble silicone has been used as a coating in disposable gloves since 1991, as a moisturizer and lubricant for ease of donning. Silicone has been shown to substantially reduce skin irritations when used in conjunction with natural rubber latex gloves.
- Allantoin a botanical extract of comfrey also known as glyoxyldiureide has been recognized by the US FDA OTC panel as a skin protectant. It is believed to regenerate and stimulate cells, softens skin and acts to remove unhealthy tissue and is an anti-irritant.
- Hydrolyzed collagen imparts protective colloid effect to formulations with anti-irritancy benefits. It increases the ability of skin to hold moisture. It is one of the long, fibrous structural proteins whose functions are quite different from those of globular proteins such as enzymes. Strong, tough bundles of collagen called collagen fibers are a major component of the extracellular matrix that supports most tissues and gives cells structure from the outside, but collagen is also found inside certain cells. Collagen has high tensile strength, and is the main component of cartilage, ligaments, tendons, bone and teeth. Along with soft keratin, it is responsible for skin strength and elasticity, and its degradation leads to wrinkles that accompany aging. It strengthens blood vessels and plays a role in tissue development.
- the glove of the present invention incorporates a compound made up of a combination of silicone, allantoin, and collagen.
- the invention further provides a method of coating a glove with such a compound.
- FIG. 1 is a perspective view of an elastomeric article, specifically a glove, according to the present invention
- FIG. 2 is a cross section of the elastomeric article of FIG. 1 , shown as it is oriented when it is worn during use;
- FIG. 3 a flow chart illustrating a portion of the process of making the elastomeric article of FIG. 1 ;
- FIG. 4 is a flow chart illustrating one method of applying a coating to a substrate to form the article of FIG. 1 ;
- FIG. 5 is a flow chart illustrating an alternative method of applying a coating to a substrate to form the article of FIG. 1 .
- an elastomeric article 1 is coated to achieve therapeutic benefits for a user's skin adjacent to the article and to achieve other benefits such as easy donning of the glove.
- Gloves 2 and condoms are examples of elastomeric articles that may benefit from the coating described herein.
- the glove 2 is formed of an elastomeric substrate 5 , made from one of the following materials: natural rubber latex; poly-vinyl chloride; synthetic rubber, such as acrylonitrile, chloroprene or neoprene; nylons or any other material or combination of such materials.
- the substrate 5 has a surface 10 that contacts the skin during use and this surface 10 bears a coating 11 that is of a compound of silicone, allantoin and collagen.
- the glove substrate 5 in cooperation with the coating 11 prevents moisture from permeating the glove, thereby maintaining the skin's moisture within the glove during use. This retained moisture reacts with the coating 11 , yielding a soothing and comfortable therapeutic effect on the skin.
- FIG. 3 illustrates a method of making the elastomeric article 1 of FIGS. 1 and 2 .
- a formed substrate is made ( 20 ).
- the typical process for forming the substrate involves dipping a form, or a plurality of forms, in a pool of raw material.
- the raw-material-covered form is then dried, the substrate taking the shape of the form.
- a second dip in raw material, followed by drying may follow to obtain a substrate of the desired thickness.
- the substrate is then dipped into a pool of leaching material to remove excessive chemical impurities and latex proteins if the substrate is of natural rubber.
- the cuff of the elastomeric article may be beaded according to conventional techniques, such as using rollers or brushes.
- the substrate is then cured.
- the formed substrate still on the form, will be subjected to optional chlorination ( 30 ) to remove impurities and residual proteins that may have come to the surface of the gloves during curing.
- Optional chlorination ( 30 ) is followed by further leaching.
- the substrate may instead be dipped into a polymer solution that will act as a donning agent to make the surface of the article slippery for easy donning.
- the thickness of the polymer layer is adjusted by varying the rate at which the form is dipped into the polymer, by varying the speed of the production line, or by adjusting the consistency and density of the polymer, or a combination of these approaches.
- step 40 the coating 11 is applied.
- a dipping method FIG. 4
- a spraying method FIG. 5
- the substrate still on the form, is dipped ( 41 ) into a tank or a series of tanks containing a compound of silicone, collagen and allantoin (hereafter “compound”), described further below.
- compound a compound of silicone, collagen and allantoin
- One such embodiment employs water-based silicone polymer solution, hydrolyzed collagen and allantoin powder.
- the thickness of the coating 11 is adjusted by varying the rate at which the form is dipped into the compound, by varying the speed of the chain on which the form are mounted, or by adjusting the consistency and density of the compound, or a combination of these approaches.
- concentrations and parameters shown in the table above were determined to yield a glove of suitable thickness with a noticeable beneficial effect.
- Higher dipping time yielded a thicker film coating and therefore a thicker glove providing undesired reduction of tactile sense through the glove.
- Lower dipping time yielded a coating that was too thin to provide a noticeable therapeutic effect.
- the concentration levels noted in the chart were subjected to and passed biocompatibility tests, determining that these concentrations would not cause allergy problems in users.
- Higher concentrations yielded uneven coating and drip marks.
- Lower concentrations did not yield a noticeable therapeutic effect.
- Higher temperatures cause the compound to be too thin to form the desired layer. At lower temperatures, the components may not dissolve thoroughly or consistently through the compound. Further, at lower temperatures, the coating is not picked up by the substrate in an even manner.
- the coated substrate is dried ( 45 ), such as by passing the form through a blow drying oven heated to 65-70 C.° for about 10 minutes.
- the heat from the ovens allows the silicone, collagen and allantoin compound gel to evaporate and form an even layer on the surface of the glove.
- the coated substrates are then stripped ( 50 ) from the forms, turning them inside out, such that the coating 11 resides on the inside surface of the glove 2 .
- the gloves then cool ( 55 ).
- the formed substrate is stripped ( 60 ) from the form.
- Batches of formed substrates are tumbled ( 65 ) in a tumbler to which clean water at roughly room temperature is added.
- the articles are tumbled for about 10 minutes, after which the water is pumped out of the tumbler.
- the compound having the same components and concentrations as described above in regard to the dipping method, is then introduced ( 66 ) into the tumbler, such as by a spray nozzle while the tumbler continues to tumble the articles.
- the compound may be introduced one component at a time, or all at once.
- the tumbling time and the spraying quantity is determined by the tumbler and the spraying mechanism, and is selected to achieve a desired thickness, preferably between 0.02 and 0.04 mm of coating on the substrate.
- the coated articles are then dried ( 70 ) in a dryer and tumbled dry for between 2-3 hours at 45-50 C °. After drying, the formed and coated articles are inverted ( 75 ) manually or mechanically so that the coated side is on the inside of the article.
- the manufacturing process is performed on an assembly line with multiple forms being dipped or dried at one time.
- the chlorination process and the process of adding a donning agent may optionally be conducted “off-line”, using tumblers and dryers.
Abstract
An elastomeric article, such as a glove or a condom, is coated with a compound containing silicone, collagen and allantoin.
Description
- This application claims the benefit of U.S. Provisional Patent Application No. 60/ 858,854, filed Nov. 14, 2006, which is incorporated herein by reference in its entirety.
- The present invention relates generally to a protective elastomeric article, and more particularly to a protective elastomeric article, such as a glove, for medical and non-medical uses that is coated for beneficial effect.
- Disposable gloves made from various synthetic and natural raw materials are used to protect against transmission of viral and bacterial agents and other pathogens, and to protect against chemical and radiological contamination. Users who must wear gloves for extended periods often suffer from dried or chapped hands, skin irritation, hand fatigue and premature wrinkling.
- Gloves using aloe vera as a moisturizer are described in U.S. Pat. Nos. 6,274,154, 6,423,328, 6,630,152. Aloe vera is used in many skin care products, but it has an oil content that can have an adverse reaction when used with natural rubber and other materials, breaking down capability of rubber to act as a barrier. Some gloves also use lotions, which may have a similar effect on the barrier properties of gloves made from different raw materials. Other coatings used in gloves include cucumber extract and/or glycerin, but there is no evidence that common moisturizers used singly or in combination with another, have significantly improved the therapeutic properties of a disposable glove.
- Water soluble silicone has been used as a coating in disposable gloves since 1991, as a moisturizer and lubricant for ease of donning. Silicone has been shown to substantially reduce skin irritations when used in conjunction with natural rubber latex gloves.
- Allantoin, a botanical extract of comfrey also known as glyoxyldiureide has been recognized by the US FDA OTC panel as a skin protectant. It is believed to regenerate and stimulate cells, softens skin and acts to remove unhealthy tissue and is an anti-irritant.
- Hydrolyzed collagen imparts protective colloid effect to formulations with anti-irritancy benefits. It increases the ability of skin to hold moisture. It is one of the long, fibrous structural proteins whose functions are quite different from those of globular proteins such as enzymes. Strong, tough bundles of collagen called collagen fibers are a major component of the extracellular matrix that supports most tissues and gives cells structure from the outside, but collagen is also found inside certain cells. Collagen has high tensile strength, and is the main component of cartilage, ligaments, tendons, bone and teeth. Along with soft keratin, it is responsible for skin strength and elasticity, and its degradation leads to wrinkles that accompany aging. It strengthens blood vessels and plays a role in tissue development.
- The glove of the present invention incorporates a compound made up of a combination of silicone, allantoin, and collagen. The invention further provides a method of coating a glove with such a compound.
- An exemplary version of an elastomeric article is shown in the figures wherein like reference numerals refer to equivalent structure throughout, and wherein:
-
FIG. 1 is a perspective view of an elastomeric article, specifically a glove, according to the present invention; -
FIG. 2 is a cross section of the elastomeric article ofFIG. 1 , shown as it is oriented when it is worn during use; -
FIG. 3 a flow chart illustrating a portion of the process of making the elastomeric article ofFIG. 1 ; -
FIG. 4 is a flow chart illustrating one method of applying a coating to a substrate to form the article ofFIG. 1 ; and -
FIG. 5 is a flow chart illustrating an alternative method of applying a coating to a substrate to form the article ofFIG. 1 . - As shown in
FIG. 1 , an elastomeric article 1 is coated to achieve therapeutic benefits for a user's skin adjacent to the article and to achieve other benefits such as easy donning of the glove.Gloves 2 and condoms (not pictured) are examples of elastomeric articles that may benefit from the coating described herein. As shown inFIG. 2 , theglove 2 is formed of anelastomeric substrate 5, made from one of the following materials: natural rubber latex; poly-vinyl chloride; synthetic rubber, such as acrylonitrile, chloroprene or neoprene; nylons or any other material or combination of such materials. Thesubstrate 5 has asurface 10 that contacts the skin during use and thissurface 10 bears a coating 11 that is of a compound of silicone, allantoin and collagen. Theglove substrate 5 in cooperation with the coating 11 prevents moisture from permeating the glove, thereby maintaining the skin's moisture within the glove during use. This retained moisture reacts with the coating 11, yielding a soothing and comfortable therapeutic effect on the skin. -
FIG. 3 illustrates a method of making the elastomeric article 1 ofFIGS. 1 and 2 . A formed substrate is made (20). The typical process for forming the substrate involves dipping a form, or a plurality of forms, in a pool of raw material. The raw-material-covered form is then dried, the substrate taking the shape of the form. Optionally, a second dip in raw material, followed by drying, may follow to obtain a substrate of the desired thickness. The substrate is then dipped into a pool of leaching material to remove excessive chemical impurities and latex proteins if the substrate is of natural rubber. Optionally, the cuff of the elastomeric article may be beaded according to conventional techniques, such as using rollers or brushes. The substrate is then cured. - Next, the formed substrate, still on the form, will be subjected to optional chlorination (30) to remove impurities and residual proteins that may have come to the surface of the gloves during curing. Optional chlorination (30) is followed by further leaching. As an alternative to or in addition to chlorination (30), the substrate may instead be dipped into a polymer solution that will act as a donning agent to make the surface of the article slippery for easy donning. The thickness of the polymer layer is adjusted by varying the rate at which the form is dipped into the polymer, by varying the speed of the production line, or by adjusting the consistency and density of the polymer, or a combination of these approaches.
- In
step 40, the coating 11 is applied. There are two viable methods for applying the coating 11: a dipping method (FIG. 4 ) and a spraying method (FIG. 5 ). To apply the coating 11 by the dipping method, the substrate, still on the form, is dipped (41) into a tank or a series of tanks containing a compound of silicone, collagen and allantoin (hereafter “compound”), described further below. - The following table shows an example of the concentrations, experimentally determined, of the components of the compound and parameters for application by dipping:
-
Temperature Concentration (between Time Substance (between about) about) (about) Silicone polymer 0.1%-2.0% 30-40 C.° 3-8 seconds solution Collagen 0.1%-2.0% 30-40 C.° 3-8 seconds Allantoin 0.1%-2.0% 30-40 C.° 3-8 seconds - One such embodiment employs water-based silicone polymer solution, hydrolyzed collagen and allantoin powder.
- The thickness of the coating 11 is adjusted by varying the rate at which the form is dipped into the compound, by varying the speed of the chain on which the form are mounted, or by adjusting the consistency and density of the compound, or a combination of these approaches.
- Through experimentation, the concentrations and parameters shown in the table above were determined to yield a glove of suitable thickness with a noticeable beneficial effect. Higher dipping time yielded a thicker film coating and therefore a thicker glove providing undesired reduction of tactile sense through the glove. Lower dipping time yielded a coating that was too thin to provide a noticeable therapeutic effect. The concentration levels noted in the chart were subjected to and passed biocompatibility tests, determining that these concentrations would not cause allergy problems in users. Higher concentrations yielded uneven coating and drip marks. Lower concentrations did not yield a noticeable therapeutic effect. Higher temperatures cause the compound to be too thin to form the desired layer. At lower temperatures, the components may not dissolve thoroughly or consistently through the compound. Further, at lower temperatures, the coating is not picked up by the substrate in an even manner.
- Next, the coated substrate is dried (45), such as by passing the form through a blow drying oven heated to 65-70 C.° for about 10 minutes. The heat from the ovens allows the silicone, collagen and allantoin compound gel to evaporate and form an even layer on the surface of the glove.
- The coated substrates are then stripped (50) from the forms, turning them inside out, such that the coating 11 resides on the inside surface of the
glove 2. The gloves then cool (55). - In the spraying method,
FIG. 5 , the formed substrate is stripped (60) from the form. Batches of formed substrates are tumbled (65) in a tumbler to which clean water at roughly room temperature is added. The articles are tumbled for about 10 minutes, after which the water is pumped out of the tumbler. The compound, having the same components and concentrations as described above in regard to the dipping method, is then introduced (66) into the tumbler, such as by a spray nozzle while the tumbler continues to tumble the articles. The compound may be introduced one component at a time, or all at once. The tumbling time and the spraying quantity is determined by the tumbler and the spraying mechanism, and is selected to achieve a desired thickness, preferably between 0.02 and 0.04 mm of coating on the substrate. The coated articles are then dried (70) in a dryer and tumbled dry for between 2-3 hours at 45-50 C °. After drying, the formed and coated articles are inverted (75) manually or mechanically so that the coated side is on the inside of the article. - In typical manufacturing, to achieve efficiency, the manufacturing process is performed on an assembly line with multiple forms being dipped or dried at one time. The chlorination process and the process of adding a donning agent may optionally be conducted “off-line”, using tumblers and dryers.
- Although an illustrative version of the article and method of making it is shown, it should be clear that many modifications to the device may be made without departing from the scope of the invention. The above details are provided merely to illustrate a typical process of manifesting the invention into a product. The parameters and process described are a guideline, and may be modified to suit the production environment as long as the end product is within the scope and spirit of this invention. The exact parameters used depend upon a number of variables, such as the raw material used, age of the production line, ultimate user application of the glove, and other factors.
Claims (7)
1-8. (canceled)
9. A polymer composition comprising silicone, allantoin and collagen.
10. The polymer composition according to claim 9 , wherein the silicone is an aqueous based silicone material.
11. The polymer composition according to claim 9 , where the silicone, allantoin and collagen are in roughly equal parts.
12. A polymer composition consisting essentially of silicone, allantoin and collagen.
13. The polymer composition according to claim 12 , wherein the silicone is an aqueous based silicone material.
14. The polymer composition according to claim 12 , where the silicone, allantoin and collagen are in roughly equal parts.
Priority Applications (1)
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US14/462,712 US20140364544A1 (en) | 2006-11-14 | 2014-08-19 | Coated elastomeric article and method for making a coated elastomeric article |
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US85885406P | 2006-11-14 | 2006-11-14 | |
US11/985,252 US8365314B2 (en) | 2006-11-14 | 2007-11-14 | Coated elastomeric article and method for making a coated elastomeric article |
US13/758,697 US8695119B2 (en) | 2006-11-14 | 2013-02-04 | Coated elastomeric article and method for making a coated elastomeric article |
US13/760,036 US8808866B2 (en) | 2006-11-14 | 2013-02-05 | Coated elastomeric article and method for making a coated elastomeric article |
US14/462,712 US20140364544A1 (en) | 2006-11-14 | 2014-08-19 | Coated elastomeric article and method for making a coated elastomeric article |
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US13/760,036 Continuation US8808866B2 (en) | 2006-11-14 | 2013-02-05 | Coated elastomeric article and method for making a coated elastomeric article |
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US13/758,697 Active - Reinstated US8695119B2 (en) | 2006-11-14 | 2013-02-04 | Coated elastomeric article and method for making a coated elastomeric article |
US13/760,036 Active US8808866B2 (en) | 2006-11-14 | 2013-02-05 | Coated elastomeric article and method for making a coated elastomeric article |
US14/462,712 Abandoned US20140364544A1 (en) | 2006-11-14 | 2014-08-19 | Coated elastomeric article and method for making a coated elastomeric article |
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US13/758,697 Active - Reinstated US8695119B2 (en) | 2006-11-14 | 2013-02-04 | Coated elastomeric article and method for making a coated elastomeric article |
US13/760,036 Active US8808866B2 (en) | 2006-11-14 | 2013-02-05 | Coated elastomeric article and method for making a coated elastomeric article |
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EP (2) | EP2491964B1 (en) |
DK (2) | DK2081454T3 (en) |
ES (2) | ES2627782T3 (en) |
PL (2) | PL2081454T3 (en) |
WO (1) | WO2008060554A2 (en) |
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PL2081454T3 (en) * | 2006-11-14 | 2013-03-29 | Prec Components Inc | Coated disposable glove and method for making a coated disposable glove |
CN108384079B (en) * | 2018-02-27 | 2020-07-03 | 山东星宇手套有限公司 | Preparation method of nitrile rubber wrinkled gloves |
CN115179479B (en) * | 2022-08-08 | 2023-03-28 | 浙江德彦新材料科技有限公司 | Manufacturing process of silica gel gloves |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5770183A (en) * | 1996-08-01 | 1998-06-23 | Linares; Francisco J. | High SPF (30 and over) waterproof sunblock compositions |
US8365314B2 (en) * | 2006-11-14 | 2013-02-05 | Precision Components, Inc. | Coated elastomeric article and method for making a coated elastomeric article |
Family Cites Families (10)
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IL96292A0 (en) | 1990-11-09 | 1991-08-16 | American Israeli Paper Mills | Disposable diapers |
US6630152B2 (en) * | 1999-04-07 | 2003-10-07 | Shen Wei (Usa), Inc. | Aloe vera glove and manufacturing method |
US6274154B1 (en) | 1999-04-07 | 2001-08-14 | Belle L Chou | Aloe Vera glove and manufacturing method |
EP1138374A1 (en) * | 2000-03-29 | 2001-10-04 | Günther Birner | Method for preparing compositions of hair dyes and hair-tinting |
US20040122382A1 (en) * | 2002-12-23 | 2004-06-24 | Kimberly-Clark Worldwide, Inc. | Elastomeric articles with beneficial coating on a surface |
US20050127552A1 (en) * | 2003-12-11 | 2005-06-16 | Kimberly-Clark Worldwide, Inc. | Method for forming an elastomeric article |
DE102004004258A1 (en) | 2004-01-28 | 2005-09-08 | Sempre Hair-Color-Mix Gmbh | Process and device for the direct mixing of chemicals, in particular for the production of hair colors and / or hair tints |
US20050228538A1 (en) * | 2004-04-08 | 2005-10-13 | Christian Limburger | Methods and apparatus including an improved user interface for providing custom hair coloring products to a user |
US7265192B2 (en) * | 2004-11-30 | 2007-09-04 | Kimberly-Clark Worldwide, Inc. | Breathable elastomeric article |
CA2541922A1 (en) * | 2005-04-04 | 2006-10-04 | Medline Industries, Inc. | Disposable gloves |
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2007
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- 2013-02-05 US US13/760,036 patent/US8808866B2/en active Active
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2014
- 2014-08-19 US US14/462,712 patent/US20140364544A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5770183A (en) * | 1996-08-01 | 1998-06-23 | Linares; Francisco J. | High SPF (30 and over) waterproof sunblock compositions |
US8365314B2 (en) * | 2006-11-14 | 2013-02-05 | Precision Components, Inc. | Coated elastomeric article and method for making a coated elastomeric article |
US8695119B2 (en) * | 2006-11-14 | 2014-04-15 | Precision Components, Inc. | Coated elastomeric article and method for making a coated elastomeric article |
US8808866B2 (en) * | 2006-11-14 | 2014-08-19 | Precision Components, Inc. | Coated elastomeric article and method for making a coated elastomeric article |
Also Published As
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US8695119B2 (en) | 2014-04-15 |
EP2491964B1 (en) | 2017-04-12 |
DK2081454T3 (en) | 2012-09-03 |
DK2491964T3 (en) | 2017-07-17 |
US20130149354A1 (en) | 2013-06-13 |
EP2081454B1 (en) | 2012-05-23 |
ES2388562T3 (en) | 2012-10-16 |
US20130145517A1 (en) | 2013-06-13 |
EP2081454A2 (en) | 2009-07-29 |
US8365314B2 (en) | 2013-02-05 |
WO2008060554A2 (en) | 2008-05-22 |
WO2008060554A3 (en) | 2008-07-10 |
EP2081454A4 (en) | 2010-04-07 |
PL2081454T3 (en) | 2013-03-29 |
PL2491964T3 (en) | 2017-09-29 |
US8808866B2 (en) | 2014-08-19 |
US20080113203A1 (en) | 2008-05-15 |
EP2491964A1 (en) | 2012-08-29 |
ES2627782T3 (en) | 2017-07-31 |
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