CA3126120A1 - Needle-resistant glove and mat - Google Patents

Abstract

A needle-resistant glove and mat, and methods for fabricating thereof. The glove and mat comprise a cloth of at least one of wool, silk, and a combination thereof; and a coating on at least one of an outer surface and an inner surface of the cloth, may further comprise at least one elastomeric layer, coupled to the coated cloth, comprising a mixture of a latex composition, and 0.5 to 50 wt.% of the polyethylene particles.

Description

NEEDLE-RESISTANT GLOVE AND MAT
TECHNICAL FIELD
[0001] The present disclosure generally relates to a needle-resistant glove and mat, and methods for fabricating thereof; and more particularly to an elastomeric cloth glove and an elastomeric mat having improved resistance against sharp elements/tips.
BACKGROUND

[0002] Protection from accidental punctures is needed in different industries, medicine, law enforcement, and in any occupation where sharp instruments are encountered and where the combination of flexibility and protection against needle-stick or puncture wounds is needed.

[0003] Wearing protective gloves by the health care workers prevents contact of potentially infectious materials with the skin, especially for surgeons. Needle-stick injuries may lead to potentially fatal dangers to all healthcare workers. Thus, ideal surgical gloves and their constituting layers need to offer protection against mechanical aggressors, (e.g. needles, sharp bone fragments or other surgical instruments);
while also providing barrier to blood borne pathogen hazards. Ideally, safety gloves should provide this protection, while still allowing the wearer to perform his or her job without undue hindrance.

[0004] Accordingly, there exists a need for materials and gloves with improved resistance against needle, and other sharp elements; while providing adequate flexibility, dexterity, tactility, and comfort.
SUMMARY

[0005] This summary is intended to provide an overview of the subject matter of the present disclosure, and is not intended to identify essential elements or key elements of the subject matter, nor is it intended to be used to determine the scope of the claimed implementations. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
Date Recue/Date Received 2021-07-27

[0006] In one general aspect, the present disclosure describes an exemplary glove that is resistant to needle. Said exemplary glove may comprise a coated cloth glove; and at least one elastomeric glove coupled to the coated cloth glove, wherein surfaces and edges of said at least one elastomeric glove may be layered and fitted on an outer surface and an inner surface of the coated cloth glove, respectively.

[0007] The above aspect may include one or more of the following features. In exemplary embodiments, said at least one elastomeric glove may include: a first elastomeric glove coupled to the inner surface of the coated cloth glove through an outer surface of said first elastomeric glove, and a second elastomeric glove coupled to the outer surface of the coated cloth glove through an inner surface of said second elastomeric glove .

[0008] In some exemplary embodiments, the coated cloth glove may include a cloth made from at least one of wool, silk, and a combination thereof; and a coating on at least one of an outer surface and an inner surface of the cloth. Said cloth may comprise at least one of wool fibers, silk fibers, wool particles, silk particles, knitted wool, knitted silk, nonwoven wool, nonwoven silk, and a combination thereof. In an embodiment, the coated cloth glove may comprise the cloth, and the coating on the outer surface and the inner surface of the cloth

[0009] In exemplary embodiments, said coating may be made from a coating composition comprising silica particles, glutaraldehyde, and an organosilane; wherein, in an exemplary embodiment, the organosilane, the glutaraldehyde, and the silica particles may constitute 1 to 5 wt.%, 0.2 to 3 wt.%, and 2 to 8 wt.% of the coating composition, respectively.
In an embodiment, (3-Aminopropyl) trimethoxysilane (APTMS) may be selected as the organosilane.
In an embodiment, said coating composition may comprise 2 to 3 wt.% of the APTMS, 0.2 to 1 wt.% of the glutaraldehyde, and 4 to 6 wt.% of the silica particles.

[00010] In exemplary embodiments, the at least one elastomeric glove may be made from a mixture of a latex composition, and 0.5 to 50 wt. % of polyethylene particles. In an embodiment, the mixture may include 30 wt.% of the polyethylene particles dispersed within the latex composition. In one exemplary embodiment, the polyethylene particles may have a diameter of 100 gm or less, and may be selected from ultra-high molecular weight polyethylene particles (UHMPE).

[00011] In some exemplary embodiments, the latex composition may comprise a latex including a natural latex, or a synthetic latex. The synthetic latex, in different embodiments, may include at least one of polychloroprene, acrylic latex, vinyl acrylics, nitrile latex, polyvinyl acetate, carboxylated Date Recue/Date Received 2021-07-27 polyacrylonitrile butadiene, polyisoprene, styrene-isoprene block copolymers, styrene-ethylene butylene-styrene block copolymers, styrene-butadiene-styrene block copolymers, polyurethane, polyurea, vinyl chloride, and a blend thereof.

[00012] In exemplary embodiments, said latex composition may further include at least one or a mixture of a vulcanization agent, a surfactant, an antioxidant, and an accelerator.

[00013] In an exemplary embodiment, said exemplary glove may be a surgical glove, resistant to needle. Another aspect of the present disclosure is related to an exemplary needle-resistant elastomeric mat. Said elastomeric mat may include a coated cloth, which may comprise a cloth made from the at least one of wool, silk, and the combination thereof; and the coating coated onto at least one horizontal surface of the cloth. In exemplary embodiments, said cloth may include the at least one of the wool fibers, the silk fibers, the wool particles, the silk particles, the knitted wool, the knitted silk, the nonwoven wool, the nonwoven silk, and the combination thereof. The coating may be made from the coating composition comprising the silica particles, the glutaraldehyde, and the organosilane. In exemplary embodiments, said coating composition may include 1 to 5 wt.% of the organosilane, 0.2 to 3 wt.% of the glutaraldehyde, and 2 to 8 wt.% of the silica particles. In an embodiment, the APTMS may be used as the organosilane.

[00014] In an embodiment, said coating composition may comprise 2 to 3 wt.% of the APTMS, 0.2 to 1 wt.% of the glutaraldehyde, and 4 to 6 wt.% of the silica particles.

[00015] In some exemplary embodiments, the elastomeric mat may further include at least one elastomeric layer coupled to at least one horizontal surface of the coated cloth; wherein the at least one elastomeric layer may be made from the mixture of the latex composition, and 0.5 to 50 wt.% of the polyethylene particles. The latex composition may include at least one of the natural latex or the synthetic latex.

[00016] In yet another aspect, the present disclosure describes an exemplary method for fabricating said exemplary needle-resistant coated mat. The exemplary method may include:
obtaining the cloth made from the at least one of the wool fibers, the silk fibers, the wool particles, the silk particles, the knitted wool, the knitted silk, the nonwoven wool, the nonwoven silk, and the combination thereof; and fabricating the coated cloth by dipping said cloth in a composition containing 1 to 5 wt.% of the organosilane, 0.2 to 3 wt.% of the glutaraldehyde, and 2 to 8 wt.% of the silica particles. In an exemplary embodiment, said organosilane may be the APTMS.
Date Recue/Date Received 2021-07-27

[00017] In exemplary embodiments, said method may further include coupling the at least one elastomeric layer to the coated cloth. The at least one elastomeric layer may include the mixture of the latex composition, and 0.5 to 50 wt.% of the polyethylene particles. In an exemplary embodiment, the at least one elastomeric layer may be coupled to the at least one horizontal surface of the coated cloth.
BRIEF DESCRIPTION OF THE DRAWINGS

[00018] The novel features which are believed to be characteristic of the present disclosure, as to its structure, organization, use and method of operation, together with further objectives and advantages thereof, will be better understood from the following drawings in which a presently preferred embodiment of the present disclosure will now be illustrated by way of example. It is expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the present disclosure.
Embodiments of the present disclosure will now be described by way of example in association with the accompanying drawings in which:

[00019] FIG. 1A illustrates a schematic perspective view from a back side of an exemplary glove, resistant to needle, which comprises three gloves, and a schematic section thereof, consistent with one or more embodiments of the present disclosure;

[00020] FIG. 1B illustrates a schematic perspective view from a palm side of the exemplary glove, resistant to needle, which comprises three gloves, and a schematic section thereof, consistent with one or more embodiments of the present disclosure;

[00021] FIG. 2A illustrates a schematic perspective view from a back side of an exemplary glove, resistant to needle, which comprises two gloves, and a schematic section thereof, consistent with one or more embodiments of the present disclosure;

[00022] FIG. 2B illustrates a schematic perspective view from a palm side of the exemplary glove, resistant to needle, which comprises two gloves, and a schematic section thereof, consistent with one or more embodiments of the present disclosure;

[00023] FIG. 3A illustrates a schematic cross-sectional view of the glove comprising three gloves, in consistence with one or more embodiments of the present disclosure;

[00024] FIG. 3B illustrates a schematic cross-sectional view of the glove comprising two gloves, in consistence with one or more embodiments of the present disclosure;
Date Recue/Date Received 2021-07-27

[00025] FIG. 4 is a schematic flowchart of a method for fabricating a coated cloth glove, in consistence with one or more embodiments of the present disclosure;

[00026] FIG. 5 illustrates a schematic cross-sectional view of a coated cloth, resistant to needle; in consistence with one or more embodiments of the present disclosure;

[00027] FIG. 6 illustrates a schematic cross-sectional view of the elastomeric mat, resistant to needle; in consistence with one or more embodiments of the present disclosure;

[00028] FIG. 7 is a flowchart diagram of an exemplary method for fabricating the coated cloth, consistent with one or more embodiments of the present disclosure; and

[00029] FIG. 8 is a flowchart diagram of an exemplary method for fabricating an elastomeric mat, resistant to needle; consistent with one or more embodiments of the present disclosure.

[00030] FIG. 9 shows scanning electron microscope (SEM) images of A) untreated knitted natural silk fabric (30X magnification), B) untreated wool felt (30X magnification), C) knitted natural silk fabric coated with glutaraldehyde, APTMS, and silica nanoparticles (1500X
magnification), D) knitted natural silk fabric coated with glutaraldehyde, APTMS, and silica nanoparticles (5000X
magnification), E) wool felt coated with glutaraldehyde, APTMS, and silica nanoparticles (1500X
magnification), and F) wool felt coated with glutaraldehyde, APTMS, and silica nanoparticles (5000X magnification).
DE TAILED DESCRIPTION

[00031] The following detailed description is presented to enable a person skilled in the art to make and use the methods and devices disclosed in exemplary embodiments of the present disclosure. For purposes of explanation, specific nomenclature is set forth to provide a thorough understanding of the present disclosure. However, it will be apparent to one skilled in the art that these specific details are not required to practice the disclosed exemplary embodiments. Descriptions of specific exemplary embodiments are provided only as representative examples. Various modifications to the exemplary implementations will be readily apparent to one skilled in the art, and the general principles defined herein may be applied to other implementations and applications without departing from the scope of the present disclosure. The present disclosure is not intended to be limited to the implementations shown but is to be accorded the widest possible scope consistent with the principles and features disclosed herein.
Date Recue/Date Received 2021-07-27

[00032] It must be noted that, as used in this specification, the singular forms "a," "an," and "the"
include plural referents unless the context clearly dictates otherwise.

[00033] As used herein, the terms "comprising," "including," "constituting,"
"containing,"
"characterized by," and grammatical equivalents thereof are inclusive or open-ended terms that do not exclude additional, unrecited elements or method steps.

[00034] Reference herein to "one embodiment", "an embodiment", "some embodiments", "one or more embodiments", "one exemplary embodiment", "an exemplary embodiment", "some exemplary embodiments", and "one or more exemplary embodiments" indicate that a particular feature, structure or characteristic described in connection or association with the embodiment can be included in at least one of such embodiments. However, the appearance of such phrases in various places in the present disclosure do not necessarily refer to a same embodiment or embodiments.

[00035] The present disclosure describes an exemplary mat, exemplary glove, and methods for fabricating thereof. The exemplary glove and mats disclosed herein, provide an improved resistance against mechanical risks including, but not limited to needle, and any sharp elements/tips/points penetrating thereto. The aspects and embodiments disclosed herein, may pertain/suit, but not limit, to different applications and products including surgical gloves, disposable gloves, work safety gloves, dishwashing/kitchen gloves, condoms and the like

[00036] As to terminology, the term "durometer hardness", also cited as "shore durometer", may refer to a scale indicating level or amount of resistance to indentation. This scale is a measure of hardness of a material, typically of polymers such as elastomers and rubbers, that is measured using a device named "shore durometer".

[00037] As to terminology, the term "couple" and its derivatives may refer to any direct or indirect communication or association between two or more elements, whether or not those elements are in physical contact with one another.

[00038] As to terminology, the term "knitted" and "knitting" may refer to any method for which a cord(s) or thread(s) or strand(s) or cloth(s) can be assembled to create a series of intertwined loops or layers of construction including, but not limited to, knitting, crocheting, looming, weaving, stitching and the like.

[00039] As to terminology, the terms "felt", used herein, may refer to densely mattered non-woven fabrics that are produced from animal hair fibers, such as wool, as a result of their inherent ability to become entangled.
Date Recue/Date Received 2021-07-27

[00040] Referring now to the figures, FIG. 1A illustrates a schematic perspective view from a back side of an exemplary glove 100, resistant to needle, which comprises three gloves and a schematic section 101 thereof, consistent with one or more embodiments of the present disclosure. In addition, FIG.1B illustrates a schematic perspective view from a front palm side of the exemplary glove 100, resistant to needle, which comprises three gloves and a schematic section 102 thereof, consistent with one or more embodiments of the present disclosure. According to FIG.1A
and FIG. 1B, in consistence with exemplary embodiments of the present disclosure, the exemplary glove 100 may have a plurality of fingers (104, 106, 108, and 110), a thumb 112, a back portion 114, a front palm portion 116, and a cuff 118.

[00041] FIG. 2A illustrates a schematic perspective view from a back side of an exemplary glove 200, resistant to needle, which comprises two gloves and a schematic section 201 thereof, consistent with one or more embodiments of the present disclosure. In addition, FIG. 2B
illustrates a schematic perspective view from a front palm side of the exemplary glove 200, resistant to needle, which comprises two gloves and a schematic section 202 thereof, consistent with one or more embodiments of the present disclosure. According to FIG.2A and FIG.2B, in consistence with exemplary embodiments of the present disclosure, the exemplary glove 200 may also have a plurality of fingers (204, 206, 208, and 210), a thumb 212, a back portion 214, a front palm portion 216, and a cuff 218.

[00042] Referring to FIGs. 1A, 1B, 2A, and 2B, consistent with one or more embodiments, the exemplary glove 100 and the exemplary glove 200 may include a coated cloth glove 120 and at least one elastomeric glove (122 and/or 124). FIG. 1A and FIG. 1B, show the exemplary glove 100 which may comprise the coated cloth glove 120 coupled to two elastomeric gloves (122 and 124) including an inner elastomeric glove 122 and an outer elastomeric glove 124; wherein surfaces and edges of the inner elastomeric glove 122 and the outer elastomeric glove 124 may be layered and fitted on an inner surface 1201 and an outer surface 1202 of the coated cloth glove 120, respectively. To be specific, an outer surface 1222 of the inner elastomeric glove 122 may be coupled to the inner surface 1201 of the coated cloth glove 120; and an inner surface 1241 of the outer elastomeric glove 124 may be coupled to the outer surface 1202 of the coated cloth glove 120.
Exemplary sections of the coated cloth glove 120, the inner elastomeric glove 122, and the outer elastomeric glove 124 are schematically shown in the schematic sections 101 and 102. It is worth to note that, said schematic sections (101 and 102) are not intended to be specified, only, to the back portion 114 and the palm Date Recue/Date Received 2021-07-27 portion 116 of the exemplary glove 100; and may also refer to the plurality of fingers (104, 106, 108, and 110), the thumb 112, and the cuff 118.

[00043] In contrast, FIG. 2A and FIG. 2B show an exemplary glove 200 which may comprise the coated cloth glove 120 coupled to one elastomeric glove including the outer elastomeric glove 124;
wherein surfaces and edges of the outer elastomeric glove 124 may be layered and fitted on the outer surface 1202 of the coated cloth glove 120. In detail, the inner surface 1241 of the outer elastomeric glove 124 may be coupled to the outer surface 1202 of the coated cloth glove 120. Exemplary sections of the coated cloth glove 120 and the elastomeric outer glove 124 are schematically magnified in the schematic sections 201 and 202. It is worth to note that, said schematic sections 201 and 202 are not intended to be specified, only, to the back portion 214 and the palm portion 216 of the exemplary glove 100; and may also refer to the plurality of fingers (204, 206, 208, and 210), the thumb 212, and the cuff 218.

[00044] FIG. 3A illustrates a schematic cross-sectional view 300 of the glove 100 comprising three gloves, in consistence with one or more embodiments of the present disclosure.
Referring to FIG.
3A, and in consistence with one or more exemplary embodiments, the glove 100 may include the coated cloth glove 120 coupled to two elastomeric gloves (122 and 124) including the inner elastomeric glove 122 and the outer elastomeric glove 124; wherein surfaces and edges of the inner elastomeric glove 122 and the outer elastomeric glove 124 may be layered and fitted on the inner surface 1201 and the outer surface 1202 of the coated cloth glove 120, respectively. As illustrated in FIG. 3A, skin of a wearer 303 may be in contact with the inner surface 1221 of the inner elastomeric glove 122.

[00045] FIG. 3B illustrates a schematic cross-sectional view 302 of the glove 100 comprising two gloves, in consistence with one or more embodiments of the present disclosure.
Referring to FIG.
3B, and in consistence with one or more exemplary embodiments, the glove 100 may include the coated cloth glove 120 coupled to the outer elastomeric glove 124; wherein surfaces and edges of the outer elastomeric glove 124 may be layered and fitted on the outer surface 1202 of the coated cloth glove 120. As illustrated in FIGs. 3A, skin of the wearer 303 may be in contact with the inner surface 1201 of the coated cloth glove 120.

[00046] According to different embodiments of the present disclosure, and in accordance with FIGs.
I (A, B), 2 (A, B), and 3 (A, B), the glove 100 may be fabricated by different methods known to those skilled in art. In one embodiment, the coated cloth glove 120, the inner elastomeric glove 122, Date Recue/Date Received 2021-07-27 and the outer elastomeric glove 124 may be fabricated separately, followed by attaching the inner surface 1201 of the coated cloth and the outer surface 1202 of the coated cloth glove 120 to the outer surface 1202 of the inner elastomeric glove 122 and the inner surface 1241 of the outer elastomeric glove 124, respectively, using a bonding means (such as an adhesive, a paste, a binder, and the like).
In an exemplary embodiment, the outer elastomeric glove 124 may be coated onto the outer surface 1202 of the coated cloth glove 120 by dipping or by a coating method. A wide variety of coating methods are known in the art; in one or more embodiments, said coating method may include, but not limit to, direct coating, foamed and crushed foam coating, transfer coating, hot melt extrusion coating, calendar coating, rotary screen coating, spray coating, curtain coating, slot die or extrusion coating, mayer rod coating, kiss roll coating, gravure coating, and reverse roll coating.

[00047] In one or more embodiments, the inner elastomeric glove 122 and the outer elastomeric glove 124 may be made from a mixture of a latex composition, and polyethylene particles. In one or more embodiments, the polyethylene particles may constitute 0.5 to 50 wt.% of the mixture. More particularly, the polyethylene particles may constitute 20 to 40 wt.% of the mixture. In one exemplary embodiment, the inner elastomeric glove 122 and the outer elastomeric glove 124 may be made from a mixture of the latex composition, and the polyethylene particles;
wherein the polyethylene particles may constitute 20 to 40 wt.%, more particularly 25 to 35 wt.%, of the mixture. Said latex composition, according to one or more embodiments, may include a natural latex or a synthetic latex; wherein the synthetic latex may be selected from the group including polychloroprene, acrylic latex, vinyl acrylics, nitrile latex, polyvinyl acetate, carboxylated polyacrylonitrile butadiene, polyisoprene, styrene-isoprene block copolymers, styrene-ethylene butylene-styrene block copolymers, styrene-butadiene-styrene block copolymers, polyurethane, polyurea, vinyl chloride, and the blend thereof. In one particular embodiment, the latex composition may be prepared using the natural latex. Said latex composition may further include at least one or a mixture of a vulcanization agent, a surfactant, an antioxidant, an accelerator, and other known substances used for production of gloves.

[00048] In exemplary embodiments, the at least one elastomeric glove including the inner elastomeric glove 122 and the outer elastomeric glove 124 may be configured to provide flexibility to the glove (100 and 200), and further improve its durometer hardness. In exemplary embodiments, the at least one elastomeric glove including the inner elastomeric glove 122 and the outer elastomeric glove 124, may be prepared with different strength, durometer hardness, flexibility, and Date Recue/Date Received 2021-07-27 diameter for different applications. For example, the strength, the durometer hardness, the flexibility, and the diameter may be adjusted to obtain enough flexibility, strength, and resistance against needle for sensitive applications, such as surgeon gloves. In an exemplary embodiment, the inner elastomeric glove 122 and the outer elastomeric glove 124 may have a thickness of at least 0.03 mm; however, as discussed, the thickness may be adjusted in accordance with the application.

[00049] Referring again to FIGs. 3A and 3B, and in consistence with one or more embodiments, the coated cloth glove 120 may include a cloth 304, that may be fabricated from at least one of wool, and silk, and a combination thereof; and a coating 306 on an outer surface 3041 and an inner surface 3042 of said cloth 304. In exemplary embodiments, said cloth 304 may comprise the at least one of the wool fibers, the silk fibers, the wool particles, the silk particles, the knitted wool, the knitted silk, the nonwoven wool, the nonwoven silk, and the combination thereof. In yet another embodiment, only the outer surface 3041 of the cloth 304 may be coated with said coating 306. The coating 306, shown in FIGs. 3A and 3B, may be made from a coating composition comprising silica particles, glutaraldehyde, and an organosilane. In one or more exemplary embodiments, the silica particles may constitute 2 to 8 wt.%, more particularly 4 to 6 wt.% of the coating composition; the glutaraldehyde may constitute 0.2 to 3 wt.%, more particularly 0.2 to 1 wt.%, of the coating composition; and the organosilane may constitute 1 to 5 wt.%, more particularly 2 to 3 wt.%, of the coating composition. In a particular embodiment, said silica particles may have a diameter of at least nm; and the organosilane may be APTMS. In some exemplary embodiments, the coated cloth glove 120 may have a thickness of at least 0.006 inch; the thickness of the coated cloth glove 120 may be adjusted to comply with different applications, such as surgeon gloves, safety work gloves, dishwashing/kitchen gloves and the like. In an exemplary embodiment, the coating 306 may be formed onto the outer surface 3041 of the cloth 304 by dipping or by a coating method. A wide variety of coating methods are known in the art; in one or more embodiments, said coating method may include, but not limit to, direct coating, foamed and crushed foam coating, transfer coating, hot melt extrusion coating, calendar coating, rotary screen coating, spray coating, curtain coating, slot die or extrusion coating, mayer rod coating, kiss roll coating, gravure coating, reverse roll coating, and other known coating methods not mentioned herein.

[00050] In an exemplary embodiment, said cloth 304 may be the knitted wool or the knitted silk coated with the coating 306, that is made from said coating composition.
Date Recue/Date Received 2021-07-27 II

[00051] FIG. 4 is a flowchart diagram of a method 400 for fabricating the coated cloth glove 120, in consistence with one or more embodiments of the present disclosure. In exemplary embodiments, the method 400 may include: preparing the cloth 304 made from the at least one of wool, and silk, and the combination thereof (step 402); obtaining a cloth glove by forming or knitting the cloth 304 in shape of a glove having a plurality of fingers, a thumb, a palm portion, a back portion, and a cuff (step 404); and obtaining the coated cloth glove 120 by dipping said cloth glove 120 in the coating composition (step 406).

[00052] Referring to the step 402 of the FIG.4, and according to one or more exemplary embodiments, the cloth 304 may include the knitted/woven wool, the wool felt, the knitted/woven silk, or a silk felt. In another embodiment, the cloth 304 may be prepared using silk fibers, and wool fibers; which may be integrated/mattered by an attachment means (such as an adhesive, a paste, a binder, and a combination thereof), pressure, dispersion in a matrix, electrospinning, or by any means/methods known in the art, to form the cloth 304.

[00053] Referring to the step 406 of the FIG. 4, and according to one or more exemplary embodiments, the coated cloth glove 120 may also be obtained by coating/layering the coating composition using said coating methods. The coating methods may include, but not limit to, direct coating, foamed and crushed foam coating, transfer coating, hot melt extrusion coating, calendar coating, rotary screen coating, spray coating, curtain coating, slot die or extrusion coating, mayer rod coating, kiss roll coating, gravure coating, reverse roll coating, and other known coating methods not mentioned herein.

[00054] In one or more exemplary embodiments, the coated cloth glove 120 may further be coupled to the at least one elastomeric glove (122 and/or 124). To obtain the glove 100 comprising the coated cloth glove coupled to the inner elastomeric glove 122 and the outer elastomeric glove 124, as shown in FIGs. 1A and 1B: the inner elastomeric glove 122 which is in shape of a glove (having a plurality of fingers, a thumb, a front palm portion, and a back portion) may be attached to the coated cloth glove 120 by said bonding means; and the outer elastomeric glove 124 may be formed/layered or attached/coupled onto the coated cloth glove 120 by using said bonding means, or by dipping the coated cloth glove 120 into the mixture of the latex composition, and the polyethylene particles or by coating said mixture onto the coated cloth glove 120 using said coating methods.

[00055] To obtain the glove 200 comprising the coated cloth glove 120 and the outer elastomeric glove 124, as shown in FIGs. 2A and 2B: the outer elastomeric glove 124 may be formed/layered or Date Recue/Date Received 2021-07-27 attached/coupled onto the coated cloth glove 120 by using said bonding means, or by dipping the coated cloth glove 120 into the mixture of the latex composition, and the polyethylene particles or by coating said mixture onto the coated cloth glove 120 using said coating methods.

[00056] In one or more embodiments of the present disclosure, structure of a coated cloth and an elastomeric mat, that are resistant to needle; and method for fabricating thereof are disclosed. FIG. 5 illustrates a schematic cross-sectional view of the coated cloth 500, resistant to needle; consistent with one or more embodiments of the present disclosure. Referring to FIG. 5 and in accordance with one exemplary embodiment, the coated cloth 500 may include the cloth 304, made from the at least one of wool, silk, and the combination thereof. In exemplary embodiments, said cloth may comprise the at least one of the wool fibers, the silk fibers, the wool particles, the silk particles, the knitted wool, the knitted silk, the nonwoven wool, the nonwoven silk, and the combination thereof. In exemplary embodiments, at least one horizontal surface 502 of the cloth 304 may be coated with the coating 306, which is made from the coating composition comprising the silica particles, the glutaraldehyde, and the organosilane. In one or more exemplary embodiments, the silica particles may constitute 2 to 8 wt.%, more particularly 4 to 6 wt.% of the coating composition; the glutaraldehyde may constitute 0.2 to 3 wt.%, more particularly 0.2 to 1 wt.%, of the coating composition; and the organosilane may constitute 1 to 5 wt.%, more particularly 2 to 3 wt.%, of the coating composition. In a particular embodiment, said silica particles may have a diameter of at least nm; and the organosilane may be the APTMS.

[00057] FIG. 6 illustrates a schematic cross-sectional view of the elastomeric mat 600, resistant to needle; in consistence with one or more embodiments of the present disclosure.
The elastomeric mat 600 may comprise the coated cloth 500 and at least one elastomeric layer 602, two elastomeric layers in an embodiment, coupled to/layered onto/coated onto at least one horizontal surface 604 of the coated cloth 500. Similar to the elastomeric inner glove 122 and the elastomeric outer glove 124, the at least one elastomeric layer 602 described herein, may be made from the mixture of the latex composition, and the polyethylene particles. In an embodiment, the polyethylene particles may constitute 20 to 40 wt.%, more particularly 25 to 35 wt.%, of the mixture.
Said latex composition, according to one or more embodiments, may include the natural latex or the synthetic latex; wherein the synthetic latex may be selected from the group including polychloroprene, acrylic latex, vinyl acrylics, nitrile latex, polyvinyl acetate, carboxylated polyacrylonitrile butadiene, polyisoprene, styrene-isoprene block copolymers, styrene-ethylene butylene-styrene block copolymers, styrene-Date Recue/Date Received 2021-07-27 butadiene-styrene block copolymers, polyurethane, polyurea, vinyl chloride, and the blend thereof.
In one particular embodiment, the latex composition may be prepared using the natural latex. Said latex composition may further include the at least one or the mixture of the vulcanization agent, the surfactant, the antioxidant, the accelerator, and the other known substances used for production of the gloves. As mentioned, the at least one elastomeric layer 602 may be coupled to/layered onto/coated onto the at least one horizontal surface 604 of the coated cloth glove 500. The phrases or terms "coupled to", "layered onto", and "coated onto" used herein, may mean that the at least one elastomeric layer 602 is attached or coupled or layered by the bonding means (such as an adhesive), dipping, and the coating methods. Said coating methods, as mentioned earlier in this disclosure, may include, but not limit to, direct coating, foamed and crushed foam coating, transfer coating, hot melt extrusion coating, calendar coating, rotary screen coating, spray coating, curtain coating, slot die or extrusion coating, mayer rod coating, kiss roll coating, gravure coating, reverse roll coating, and the other known coating methods not mentioned here.

[00058] FIG. 7 is a flowchart diagram of an exemplary method 700 for fabricating the coated cloth 500, consistent with one or more embodiments of the present disclosure.
The exemplary method 700 may include: obtaining the cloth 304 made from the at least one of wool, silk, and the combination thereof (step 702); and obtaining the coated cloth 500 by coating the at least one horizontal surface 502 of the cloth 304 with the coating composition, which may comprise the organosilane, the glutaraldehyde, and the silica particles (step 604).

[00059] Referring to the step 702 of the FIG. 7, and according to exemplary embodiments, the cloth may comprise the at least one of the wool fibers, the silk fibers, the wool particles, the silk particles, the knitted wool, the nonwoven wool, the nonwoven silk, the knitted silk, and the combination thereof. In one or more exemplary embodiments, the cloth 304 may include the knitted/woven wool, or the knitted/woven silk which may comprise the wool fibers, or the silk fibers, respectively. In another embodiment, the cloth 304 may be prepared using the silk fibers, and the wool fibers;
which may be integrated by the attachment means (such as the adhesive, the paste, the binder, and the combination thereof), pressure, dispersion in a matrix, or any of the means/methods known in the art, to form the cloth 304.

[00060] Referring to the step 704 of the FIG. 7, in one or more exemplary embodiments, the silica particles may constitute 2 to 8 wt.%, more particularly 4 to 6 wt.% of the coating composition; the glutaraldehyde may constitute 0.2 to 3 wt.%, more particularly 0.2 to 1 wt.%, of the coating Date Recue/Date Received 2021-07-27 composition; and the organosilane may constitute 1 to 5 wt.%, more particularly 2 to 3 wt.%, of the coating composition. In a particular embodiment, said silica particles may have the diameter of at least 10 nm; and the organosilane may be the APTMS. Said coating composition may be coated onto the at least one horizontal surface 502 of the cloth 304 by dipping or by the coating methods, discussed herein.

[00061] FIG. 8 is a flowchart diagram of an exemplary method 800 for fabricating the elastomeric mat 600, resistant to needle; consistent with one or more embodiments of the present disclosure. The exemplary method 800 may include fabricating the coated cloth 500 (step 802);
and obtaining the elastomeric mat 600 by coupling the at least one elastomeric layer 602 to the at least one horizontal surface 604 of the coated cloth 500 (step 804).

[00062] Referring to the FIG. 8, the step 802 may include fabricating the coated cloth 500. As shown in the flowchart diagram of the FIG. 8, the step 802 may include the step 702 and the step 704 of the exemplary process 700.

[00063] Referring to the step 804 of the FIG. 8, in an embodiment, the at least one elastomeric layer 602 may be prepared from the mixture of the latex composition, and 0.5 to 50 wt.% of the polyethylene particles. In exemplary embodiments, the polyethylene particles may constitute 20 to 40 wt.%, more particularly 25 to 35 wt.%, of the mixture. Said latex composition, according to one or more embodiments, may include the natural latex or the synthetic latex;
wherein the synthetic latex may be selected from the group including polychloroprene, acrylic latex, vinyl acrylics, nitrile latex, polyvinyl acetate, carboxylated polyacrylonitrile butadiene, polyisoprene, styrene-isoprene block copolymers, styrene-ethylene butylene-styrene block copolymers, styrene-butadiene-styrene block copolymers, polyurethane, polyurea, vinyl chloride, and the blend thereof.

[00064] Referring again to the step 804, and according to the exemplary embodiments, coupling the at least one elastomeric layer 602 to the at least one horizontal surface 604 of the coated cloth 500 may include: coupling the at least one elastomeric layer 602 to the at least one horizontal surface 604 of the coated cloth 500 by dipping the coated cloth 500 in the mixture of the latex composition, and 0.5 to 50 wt.% of the polyethylene particles; and/or by coating/layering the mixture of the latex composition, and 0.5 to 50 wt.% of the polyethylene particles onto the coated cloth 500 by the coating methods, mentioned earlier in the present disclosure.

[00065] As discussed in the present disclosure, the latex composition may include the vulcanization agent. In exemplary embodiments, the vulcanization agent may include, but not limit to, Sulfur, Date Recue/Date Received 2021-07-27 Sulfur Monochloride, Tellurium, Selenium, Thiuram accelerators, Polysulphide polymers, p-Quinonedioximes, Metallic Oxides, Organic Peroxides, Di-isocyanates, other known vulcanization agents in the art, and a combination thereof.

[00066] As discussed in the present disclosure, the latex composition may include the accelerator.
In exemplary embodiments, the accelerator may include, but not limit to, Hexamethylene Tetramine(HMT), Diphenyl Guanidine(DPG), Heptaldehyde-Aniline condensation Product (BA), N, N' -Di orthotolyl Guanidine (DOTG), 2- Mercaptobenzothiazole(MBT), 2-2' -Dithiobis(benzothiazole)(MBTS), Zinc -2-m erc aptob enzothi azole(ZMBT), Zinc-0,0-di-N-phosphorodithioate(ZBDP), N-Cyclohexy1-2-benzothiazole sulfenamide (CBS), N-tert-buty1-2-benzothi azole sulfenamide (TBBS), 2 -(4-M orpholin othi o)-b enzothi azol e(MB S), N,N' -di cycl ohexyl-2-benzothiazole sulfenamide (DCBS), Ethylene Thiourea(ETU), Di-pentamethylene Thiourea (DPTU), Dibutyl Thiourea(DBTU), Tetramethylthiuram Monosulfide(TMTM), Tetramethylthiuram Disulfide(TMTD), Dipentamethylenethiuram tetrasulfide(DPTT), Tetrabenzylthiuram Disulfide (TBzTD), Zinc dimethyldithiocarbamate(ZDMC), Zinc diethyldithiocarbamate (ZDEC), Zinc dibutyldithiocarbamate (ZDBC), Zinc dibenzyldithiocarbamate(ZDBC), Zinc-Isopropyl Xanthate(ZIX), other known accelerators in the art, and a mixture thereof.

[00067] As discussed in the present disclosure, the latex composition may include the antioxidant.
In exemplary embodiments, the antioxidant may include, but not limit to, Para Phenylenediamines (PPD's), Trimethyl-dihydroquinolines (TMQs), Phenolic antioxidants, Alkylated Diphenylamines (DPAs), Aromatic Phosphites, Diphenylamine -Ketone Condensates, other known accelerators in the art, and a mixture thereof.

[00068] As discussed in the present disclosure, the latex composition may include the surfactant. In exemplary embodiments, the surfactant may include, but not limit to, Anionic surfactants, Cationic Surfactants, Zwitter ionic Surfactants, Non-ionic Surfactants, and a mixture thereof.

[00069] In exemplary embodiments, the latex composition may be prepared using an aqueous solvent, or an organic solvent.

[00070] Unless otherwise stated, all measurements, values, ratings, positions, magnitudes, sizes, and other specifications that are set forth in this specification, are approximate, not exact. They are intended to have a reasonable range that is consistent with the functions to which they relate and with what is customary in the art to which they pertain.
Date Recue/Date Received 2021-07-27

[00071] It will be understood that the terms and expressions used herein have the ordinary meaning as is accorded to such terms and expressions with respect to their corresponding respective areas of inquiry and study, except where specific meanings have otherwise been set forth herein. Relational terms such as "first" and "second" and the like may be used solely to distinguish one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions. An element proceeded by "a" or "an" does not, without further constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[00072] While various implementations have been described, the description is intended to be exemplary, rather than limiting and it will be apparent to those of ordinary skill in the art that many more implementations are possible that are within the scope of the implementations. Although many possible combinations of features are shown in the accompanying figures and discussed in this detailed description, many other combinations of the disclosed features are possible. Any feature of any implementation may be used in combination with or substituted for any other feature or element in any other implementation unless specifically restricted. Therefore, it will be understood that any of the features shown and/or discussed in the present disclosure may be implemented together in any suitable combination.
EXAMPLES
EXAMPLE 1: Fabrication of a coated wool glove and a coated wool mat

[00073] In one exemplary embodiment, the coated wool mat was fabricated by coating a wool fabric or textile, prepared by knitting or weaving wool fibers, or felt with the coating composition.
To prepare the coating composition, in one embodiment, 0.4 g of glutaraldehyde 50%, 4.4 g of silica (SiO2, 11-13 nm) nanoparticles, and 2 ml of the APTMS were added to 100 ml of ethanol 95%. The prepared suspension was then mixed and homogenized for 3 h at 15 C, using an ultrasonic homogenizer. The wool fabric or textile, and the wool felt were initially sewed in shape of a glove having a thumb, fingers, a palm portion, and a back portion. The created wool gloves were, subsequently, placed or dipped into a stable dispersion of the coating composition; after 24 h, the coated wool gloves were air dried.
EXAMPLE 2: Fabrication of a coated silk glove and a coated silk mat

[00074] In one exemplary embodiment, the coated silk mat was fabricated by coating a natural silk fabric or textile, prepared by knitting or weaving silk fibers, or felt with the coating composition. To Date Recue/Date Received 2021-07-27 prepare the coating composition, in one embodiment, 0.4 g of glutaraldehyde 50%, 4.4 g of nanosilica particles (SiO2; 11-13 nm), and 2 ml of the APTMS were added to 100 ml of ethanol 95%. The prepared suspension was then mixed and homogenized for 3 h at 15 C, using an ultrasonic homogenizer. The natural silk fabric or textile was initially sewed in shape of a glove having a thumb, fingers, a palm portion, and a back portion. The created natural silk gloves were, subsequently, placed or dipped into a stable dispersion of the coating composition; after 24 h, the coated silk gloves were air dried.

[00075] FIG. 9 shows scanning electron microscope (SEM) images of A) untreated knitted natural silk fabric (30X magnification), B) untreated wool felt (30X magnification), C) knitted natural silk fabric coated with the glutaraldehyde, the APTMS, and the silica particles (1500X magnification), D) knitted natural silk fabric coated with the glutaraldehyde, the APTMS, and the silica particles (5000X magnification), E) wool felt coated with the glutaraldehyde, the APTMS, and the silica particles (1500X magnification), and F) wool felt coated with the glutaraldehyde, the APTMS, and the silica particles (5000X magnification).

[00076] Resistance of the coated natural silk fabric and the coated wool fabric to needle was evaluated. According to the obtained results, a 13x6.5 cm layer of the coated knitted natural silk (93 g/m2) resisted against a 27 gauge syringe needle attached to weights up to 31.6 g, which were released onto it. In comparison, the same size of the coated wool felt (690 g/m2) was resistant to a 23 gauge syringe needle attached to weights up to 300 g.
EXAMPLE 3: Fabrication of the inner elastomeric glove and the outer elastomeric glove

[00077] As discussed herein, according to an embodiment, the inner elastomeric glove and the outer elastomeric glove may comprise the mixture of the latex composition, and 0.5 to 50 wt.% of polyethylene particles. To prepare the latex composition, a latex containing about 60% total solid was used; in one embodiment, a latex composition comprising 100 phr of said 60% natural rubber latex, 0.2 phr of 10% potassium hydroxide solution, 0.4 phr of a 50%
antioxidant emulsion, 0.2 phr of 50% zinc oxide dispersion, 0.5 phr of 50% sulphur dispersion, 0.4 phr of 50% ZDBC dispersion, and 1 phr of 50% ZMBT dispersion was prepared. Ultra high molecular weight polyethylene (UHMPE) was added to the prepared solution with a weight percent of 10%.

[00078] The inner elastomeric glove and the outer elastomeric glove were formed separately, by dipping glove mold(s) into a coagulant solution (20% calcium nitrate solution in methanol) . Once Date Recue/Date Received 2021-07-27 removed from the coagulant solution, the mold was allowed to dry for several minutes. The mold was then dipped into the latex solution containing 10 wt.% of the UHMPE, using standard techniques. Once removed, the glove was allowed to dry at 20 to 27 C for several minutes.
Afterwards, the glove was cured at about 100 C for about 20 min. The glove was then removed from the mold and analyzed for various physical characteristics.

[00079] To obtain a glove with a predetermined thickness, several dipping and drying steps may be required.
Date Recue/Date Received 2021-07-27

Claims (8)

What is claimed is:

1. A glove and mat that are resistant to needle comprise a coated cloth ; and at least one elastomeric layer which is coupled or attached onto at least one horizontal surface of the coated cloth.

2. A glove and mat of claim 1, wherein said elastomeric layer include a first elastomeric layer coupled or attached to the inner surface of the coated cloth through an outer surface of said first elastomeric layer, and a second elastomeric layer coupled or attached to the outer surface of the coated cloth through an inner surface of said second elastomeric layer. .

3.A glove and mat of claim 1, wherein said elastomeric layer is made from a mixture of a latex composition, and 0.5 to 50 wt. % of polyethylene particles.

4. A glove and mat of claim 3, wherein said latex composition comprise a latex including a natural latex or synthetic latex.

5. A glove and mat of claim 3, wherein said polyethylene particles have a diameter of 100 gm or less, and is selected from ultra high molecular weight polyethylene particles (UHMWPE).

6. A glove and mat of claim 1, wherein said cloth comprise at least one of wool fibers, silk fibers, wool particles, silk particles, knitted wool, knitted silk, nonwoven wool, nonwoven silk, and a combination thereof.

7. A glove and mat of claim 1, wherein said coated is made from dipping cloth in a coating composition comprising 2 to 8 wt.% of the silica particles, 0.2 to 3 wt.% of the glutaraldehyde, and an 1 to 5 wt.% of the organosilane;

8. A glove and mat of claim 7, wherein said organosilane is (3-Aminopropyl) trimethoxysilane (APTMS).
Date Recue/Date Received 2021-07-27