EP1169167A1 - Procede de revetement d'articles et articles recouverts - Google Patents

Procede de revetement d'articles et articles recouverts

Info

Publication number
EP1169167A1
EP1169167A1 EP99958938A EP99958938A EP1169167A1 EP 1169167 A1 EP1169167 A1 EP 1169167A1 EP 99958938 A EP99958938 A EP 99958938A EP 99958938 A EP99958938 A EP 99958938A EP 1169167 A1 EP1169167 A1 EP 1169167A1
Authority
EP
European Patent Office
Prior art keywords
coating composition
fabric substrate
fiberglass
coated
period
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Withdrawn
Application number
EP99958938A
Other languages
German (de)
English (en)
Inventor
Warren G. Mang
Kenneth D. Hobbs
Charles P. Marino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Markel Group Inc
Original Assignee
Markel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Markel Corp filed Critical Markel Corp
Publication of EP1169167A1 publication Critical patent/EP1169167A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation

Definitions

  • This invention relates to a method of coating articles. More particularly, this invention relates to a method of bonding one or more coating compositions firmly to a fabric substrate to form a thin coating layer thereon and the coated articles formed thereby.
  • conduits Cables, wires, hoses and the like constructed from metal, plastic, rubber and other materials (collectively referred to herein as conduits) are used widely in applications in which
  • conduits are often positioned in circuitous paths in close proximity to repetitively moving or vibrating parts. If left exposed to such movements or vibrations, conduits will wear
  • conduits of such systems are protected from abrasive failure.
  • inexpensive material is selected for its combination of flexibility and thermal stability both of
  • Fiberglass exhibits poor abrasion-
  • Abrasion-resistant coatings as well as other types of coatings which are applied to fabrics for other purposes, are often formed from compositions which contain curable constituents.
  • curable components tends to promote a more secure bond to the substrate on which the coating composition is applied and improves various physical characteristics of the coatings formed therefrom such as, for example, strength, abrasion resistance and durability.
  • Known means for curing include, for example, heat and ultraviolet (UN) radiation. As used herein, curing
  • UV radiation can be achieved efficiently with one or more UV light generating lamps under
  • UV-curable coating compositions do not require solvents and thus avoid the risk of air pollution that can result from evaporation of volatile organic compounds, which often comprise such solvents, during the manufacturing process.
  • step of an overall manufacturing process can be accomplished quickly.
  • UV-curable coating compositions generally contain photoinitiators that are dormant until
  • UV wavelengths exposure to UV radiation triggers a chemical reaction that produces free radical
  • colorless coatings the presence of colorants in the coating compositions, especially pigments,
  • pigments and UV wavelengths to produce a cured coating can be difficult. Indeed, carbon black,
  • compositions and to regulate the thickness and texture thereof.
  • U.S. Patent No. 3,330,713 discloses a method for coating fabric comprising the steps of extruding a film of an uncured polyurethane composition onto a continuous moving sheet of paper
  • U.S. Patent No. 4, 582,660 discloses a method of coating fabric in which a liquid polymeric
  • coating composition is applied to at least one side of a fabric substrate, partially dried in a heating
  • U.S. Patent No. 4,062,989 discloses a method of coating fabric in which a horizontally oriented continuous length of fabric is coated from below by means of a pressure
  • the solids content of the coating composition In order for coating compositions to be freely flowable into the fabric substrate, the solids content of the coating composition must be low. If a high-solids content coating composition is
  • glass fibers cause dermatitis, other forms of skin irritation, and respiratory
  • the coatings do not penetrate into the body of the sleeve to any substantial degree, being adhered only to the exterior surface of the sleeve, fibers located within the interior of the sleeve are not bound to the coating layer and are thus more capable of fraying. As a result, such coatings so applied to the sleeve fail to suppress the release of fibers, particularly glass fibers, onto the hands
  • the resultant dual-layered coated article of the present invention is capable
  • the present invention is particularly well-suited
  • the application step provides an initial coating of the coating composition to the fabric substrate.
  • the use of a pressure step then serves to force a portion of the coating composition so applied into the fabric
  • Articles produced in accordance with this method display a uniformly continuous thin coating which is bound firmly to the fabric substrate and which serves to minimize fraying of the fibers comprising the fabric substrate.
  • coating compositions are employed, there is provided a method for coating a fabric substrate
  • UV-curable coating composition applying a UV-curable coating composition to the coated fabric substrate, and curing the UV- curable coating composition thereon by exposing the UV-curable coating composition to UV
  • the present invention may include additional process steps. These additional steps, discussed
  • the steps comprising the present invention are part of a continuous production process.
  • an article comprising a fabric substrate, a high solids content heat-cured coating composition applied to, at least
  • Fabrics considered to be within the scope of the invention are those fabrics capable of having a high solids content coating composition adhered thereto and forced at least partially
  • Such fabrics include fabrics comprising
  • the method of the present invention coats substantially all of the fibers comprising the matrix with the coating composition resulting in a significant enhancement to the ability of the
  • the fabric substrate is preferably provided
  • the fabric substrate will be provided in colored form.
  • the colorants may comprise dyes, pigments or other types
  • the colorants may be applied to the fabric substrate prior to the application of the colorants
  • heat-cured coating or as a component of the heat-cured coating.
  • compositions which are capable of being applied to a fabric substrate, penetrating at least
  • the coating compositions will be curable
  • coating compositions may be provided in one or more solid, liquid or gaseous phases, or combinations thereof, it is important that the coating composition have a relatively high solids content, preferably of at least about 40 wt.%.
  • the coating composition is provided as an aqueous
  • the high solids content coating compositions are also heat-cured and capable of forming a chemical bond with
  • UV-curable coating compositions considered to be within the scope of the invention are those compositions which are
  • coated article provides significant enhancement to the abrasion resistance, durability and dielectric
  • the method of the present invention provides numerous advantages including, for example
  • the present invention can provide significant fray-resistance when the coating compositions of the present invention.
  • present invention are applied to sleeves constructed from fibrous material such as fiberglass.
  • FIG. 1 shows a schematic side elevation view of a coating apparatus in accordance with
  • Fig. 2 shows a schematic side elevation view of a coating apparatus in accordance with an embodiment of the present invention in which two coating compositions are applied to the
  • the first step in the method of the present invention involves the
  • the invention involves the application of a heat-cured coating composition to a fabric substrate.
  • application step may be accomplished in a variety of ways provided that it results in an adequate
  • composition used the amount required to be initially applied and, if part of a continuous
  • the line speed of the fabric substrate In those embodiments in which the coating composition to be applied is provided in a substantially liquid phase, such as a dispersion of solids in a liquid medium, it is preferred that the application step is accomplished by means of
  • the coating composition is provided in a substantially gas phase, such as a dispersion of solid particles in a gas, or in a substantially solid phase, such as one or more phases
  • the application step is accomplished by means of sprayers or fluid beds.
  • the thickness of the coating composition initially applied should be sufficient to permit
  • the initially applied coating composition will form a continuous layer
  • the fabric substrate having a thickness of about 0.5 to about 5 mils, and more preferably about
  • the coating composition when provided in the form of a dispersion of solids in a liquid medium,
  • means for agitating the coating composition are important to maintaining the homogeneity of the
  • the next step in the method of the present invention involves the application of pressure to the coated fabric substrate.
  • the pressure step may be accomplished in any of a number of ways provided that the means for exerting pressure on the coated substrate is capable of imparting the
  • the pressure step is accomplished by means of a set of pinch rollers wherein the rollers are spaced to form a nip of a preselected size in order to impart
  • the coated fabric substrate advances upward through a set of pinch rollers, as shown in Figs. 1 and 2, so that the coating composition in excess of that amount which is driven into the fabric substrate falls
  • pinch rollers permits pressure to be exerted continuously upon the advancing fabric substrate positioned so as to pass therethrough.
  • the amount of pressure applied to the coated fabric substrate will vary according to,
  • the flow characteristics of the coating composition the relative ease or
  • the pressure exerted in the pressure application step is preferably about 5 to
  • the coating composition layer will preferably have a thickness of about
  • rollers may be constructed from
  • rollers formed therefrom are a variety of materials having a range of hardness provided the rollers formed therefrom.
  • rollers capable of exerting a sufficient force on the coated fabric substrate.
  • the rollers may also range in surface texture from relatively smooth to relatively rough or patterned provided that such texture does not substantially interfere with the application of pressure or result in undue slippage
  • the rollers will comprise natural or synthetic rubbers, urethanes and the like having a substantially smooth surface and a
  • Shore D hardness of at least about 60.
  • a further step of the present method is curing the coated fabric substrate.
  • the curing step will be accomplished by means of the application of heat or UV radiation.
  • heat that is, heat
  • the heat source is capable of imparting a sufficient quantity of thermal energy and is
  • composition applied thereon to cure will employ the use of curing ovens.
  • heat curing will employ the use of curing ovens.
  • the curing step will utilize a curing means configured to permit
  • the amount of coating composition applied the time of exposure, and the degree of cure desired.
  • the time period in which heat curing occurs will depend on, among other things, the
  • the temperature range and cure times will be selected to permit sufficient curing to form a coating which is appropriately abrasion- resistant for the application in which such coated article will be used.
  • such coatings are appropriately abrasion-resistant coatings.
  • compositions will be capable of being cured upon exposure to temperatures of between about 500°F to about
  • 1200°F preferably between about 700°F to about 1000°F, for a period of about 5 to about 90 seconds, preferably about 5 to about 30 seconds.
  • heat-cured coating compositions will be employed which evolve
  • the heat source be provided with means for evacuating water vapor so that water vapor evolving from the cross-linking
  • reaction may be continuously evacuated therefrom.
  • appropriate water evacuation means may by provided in a variety of ways depending on, among other things, the nature of the heat source
  • the method of the present invention comprises additional steps. The first of these steps
  • This application step may be accomplished in a variety of ways provided that it results
  • UV-curable coating composition in an adequate delivery of the UV-curable coating composition to the coated fabric substrate.
  • application methods considered within the scope of the invention include the use of a dip pot, sprayers, rollers and the like. The use of such means will vary depending on,
  • the form of UV-curable coating composition used the amount required to be initially applied and, in continuous production processes, the line speed of the coated fabric
  • the UV-curable coating composition to be applied is provided in a substantially liquid phase, such as a single-phase liquid or a dispersion of solids in
  • this application step is accomplished by means of a dip pot wherein an the liquid phase UV-curable coating composition may be applied readily to continuous
  • the thickness of the UV-curable coating composition initially applied should be sufficient
  • the coated fabric substrate pass through a sizing die to control the thickness of the UV-curable coating composition applied thereon.
  • the UV-curable coating composition will form
  • a continuous layer on the fabric substrate having a thickness of about 1 to about 50 mils, and more
  • composition is provided in the form of a dispersion of solids in a liquid
  • the curing step may be accomplished in a variety of ways provided that the source of UV radiation is capable of imparting a sufficient quantity of
  • the curing step will employ the use of UV radiation-emitting lamps, and even
  • xenon arc or mercury vapor lamps more preferably xenon arc or mercury vapor lamps.
  • UV sources The particular number and placement of UV sources utilized will vary in accordance with,
  • UV radiation-emitting lamps are used
  • reflectors are also be employed.
  • reflectors serve to enhance the even and
  • the time period in which UV curing occurs will depend on, among other things, the curing characteristics of the particular constituents comprising the UV-curable coating composition, the amount of such composition applied, the intensity of the UV radiation to which such composition
  • compositions will be capable of being cured within a period of about 1 to about 30 seconds, preferably about 1 to about 20 seconds.
  • the steps of the method of the present invention are performed as a part of a continuous production process wherein the fabric substrate is provided in continuous lengths and
  • the coating composition or compositions are provided in quantities sufficient to coat the length of fabric used.
  • the line speed of the fabric substrate through the process line will vary in accordance with a variety of factors including the particular fabric substrate and
  • the line speed will be about 5 to about 100 feet per minute, more
  • the method of the present invention may include additional steps.
  • additional steps In certain preferred embodiments
  • the inside diameter of the fabric substrate is sized in accordance with particular predetermined sizing specifications.
  • the sizing die is positioned so that the fabric substrate passes therethrough prior to further processing. While the dimensions of the sizing die will be selected with reference to the specifications required by the particular application, for most applications
  • the sizing die will have an inside diameter of about 0.04 to about 2 inches.
  • Another step which may also be included in certain embodiments is a preheating step.
  • the fabric substrate will be preheated prior to the application of any coating composition.
  • This step can serve a number of functions depending on the particular fabric
  • the preheating step serves to remove organic starches and binders which are commonly applied in the manufacture of the fiberglass sleeving, to heat set the inside diameter of the fiberglass sleeving,
  • the preheating step can be accomplished in a variety of ways provided that the fabric substrate is exposed to a sufficient quantity of heat for a sufficient period of time to prepare the
  • the preheating step occurs in an oven set at between about 700°F to about 1600°F, more
  • the oven is sized to permit a residence time of
  • the method of the present invention may also include a shaping step after the pressure step.
  • the pressure step may cause the substrate to assume a flattened or distorted shape.
  • the subsequent curing step may cause the substrate to assume a flattened or distorted shape.
  • present invention may also involve a cooling step in which the heat cured coated fabric substrate
  • cooling step may be accomplished by a variety of means all of which are considered within the
  • Such fabrics may be woven, braided, knitted, felted or constructed by any other
  • inorganic materials preferably fiberglass.
  • fiberglass sleeves will be used for many applications as it is provided as thin sleeves with enhanced
  • the coating forms a bond with and penetrates at least partially into the glass fiber matrix. While the precise bonding mechanism is not known, in certain embodiments it is believed to involve the creation of a series of hydrogen bonds between polar functionalities
  • the fabric substrate will be provided in colored or uncolored form.
  • compositions which have a relatively high solids content as least about
  • compositions may exhibit a wide range of properties and will be
  • coating composition will preferably comprise a combination of at least one abrasion-resistant resin, preferably a thermosetting resin, and an elastomer, and will be capable of being cured into
  • a coating which exhibits abrasion-resistance of at least about 10,000 cycles, preferably at least
  • abrasion-resistant resin means a resin which itself possesses abrasion-resistant properties or a resin which can be converted into
  • Abrasion-resistant resins which are considered suitable for use in the practice of the present invention are those resins which, when combined
  • thermosetting resins are preferred for various reasons including their ability to impart significant abrasion-resistance upon being cured and to form bonds between the coating and the
  • Coatings formed therefrom also exhibit fray resistance at cut ends when used in applications involving fibrous substrates. While most thermosetting resins will cure on their own
  • certain embodiments of the present invention include a cross-linking agent to promote
  • thermosetting resin is a thermosetting resin
  • cross-linking agents including, for example, 1,3-bis(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-styl-(2-aminoethacrylate), 1,3-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-
  • the cross-linking agent will comprise benzophenone and its derivatives or a methylolated melamine, preferably hexamethoxymethylmelamine (HMMM) which is sold under
  • the amount of cross-linking agent to be used will vary according to the degree of cure desired and the number and nature of the functionalities of the thermosetting resin at which cross- linking reactions can occur. For most applications, the amount of cross-linking agent will be used.
  • linking agent will comprise about 1 to about 5 wt.%, preferably about 1.5 to about 3 wt.% of the composition.
  • the coating compositions which are considered suitable for use as the base coat are
  • the UV-curable coating composition upon the application of UV radiation.
  • colorants may be included in the heat-cured coating compositions.
  • colorants may be desirable not only for aesthetic reasons, but also as a means
  • pigments will be carbon black and metal oxides, for example, ferric oxide, titanium dioxide and
  • a particularly preferred pigment is carbon black sold under the trademark Harshaw W-
  • the pigment will generally comprise about 2 to about 10 wt.% of the coating composition, preferably about 4 wt.%.
  • the coating compositions comprise an aqueous
  • elastomer about 1.5 to about 3 wt.% cross-linking agent, and, optionally, about 2 to about 10
  • wt.% pigment In those embodiments in which two different coating compositions are applied, it is important that if colorants are used they are provided as part of the fabric substrate to be coated or included in the heat-cured coating composition so that the colorants do not interfere
  • a high-density polyolefin powder refers to a high-density polyolefin powder
  • polyolefin powder which has a density of at least about 0.96 grams per cubic centimeter.
  • the polyolefin powders used in coating compositions applied to the fabric are particularly useful.
  • substrate will be those polyolefin powders which are capable of forming coatings which exhibit
  • preferred polyolefin powders are high-density, surface-activated polyethylene (HDPE) and
  • PTFE polytetrafluoroethylene
  • coating compositions comprising dispersions of solids in an aqueous medium.
  • the amount of polyolefin used will vary according to, among other things, the degree of additional abrasion-resistance desired.
  • the polyolefin powder component will comprise
  • composition preferably about 1 to about 10 wt.% of the composition, preferably about 3 to about 5 wt.%.
  • polyolefin powders that can be used are those having an average particle size of about 10 to about 35 microns, preferably from about 18 to about 25 microns, and even more
  • the coatings formed by the compositions of the present invention form a film on the surface of the substrate to which they are applied, the particle size
  • the coatings containing such powders affects the surface profile of the coated article. More particularly, as the particle size of the polyolefin powder is increased, the coatings containing such powders are
  • the coating compositions comprise an aqueous
  • thermosetting abrasion-resistant resin about 42 to about
  • coating compositions preferably comprise about 3 to about 5 wt.% polyolefin powder.
  • the coating compositions comprise an aqueous dispersion of about 44 wt.% of a
  • TXDI polyether-based m-tetramethyl xylylene diisocyanate
  • Resilience is a measure of the ability of a material to return to its original shape after an applied force is released.
  • coatings formed from such compositions demonstrate resilience close to or at 100%.
  • the UV-curable thermoplastic compositions the UV-curable thermoplastic compositions
  • compositions which are capable of adhering to fabric substrates which have been coated are those compositions which are capable of adhering to fabric substrates which have been coated
  • compositions may exhibit a wide range of properties and will be selected in accordance with
  • the UV-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-recording the requirements of application to which such coated articles will be put.
  • the UV-ray-ray-recording the requirements of application to which such coated articles will be put.
  • the UV-ray-recording the requirements of application to which such coated articles will be put.
  • curable coating compositions will comprise resins which have vinyl or acrylate functionalies.
  • acrylic urethane elastomers such as Ebecryl 923 manufactured by
  • UV-curable coating composition It is important to the present invention that the UV-curable coating composition
  • UV-curable resins will often require the use of photo-initiators to initiate and promote
  • the UV-curable resin is combined with a sufficient quantity of a photoinitiator
  • photoinitiator to promote cross-linking upon exposure to a source of UV radiation.
  • Various photoinitiators are known, including, for example, benzoin, benzoin ethers such as benzoin
  • benzil ketals such as benzil dimethyl ketal (BDMK)
  • ⁇ -hydroxy-acetophenones such as 2-hydroxy-2-methylphenyl propanone (HMPP) and hydroxycyclohexyl phenyl ketone
  • HCPK dialkoxyacetophenones such as 2,2-diethoxyacetophenone, ⁇ -amino acetophenones
  • BDMB dimethylamino-l-(4-morpholinophenyl)butanone
  • phosphine oxides benzophenone, diphenoxy benzophenone, 4,4'-N,N-dimethylamino benzophenone, thioxanone,
  • arylsulfonium salts such as p,p-bis[(triphenylphosphono)methyl] benzophenone salt, aryl t-butyl peresters and
  • the amount of photoinitiator to be used will vary according to the degree of cure desired
  • the dual-layered coating provided by the method of the present invention provides
  • the dual-layer coated article of the present invention is configured to provide enhanced dielectric properties to the substrate fabric on which such coating is applied. More specifically, in certain preferred embodiments, the dual-layer coated article of the present
  • thermosetting coatings are capable of displaying a variety
  • an indefinite length of braided fiberglass sleeve 10 (fabric
  • a substrate is supplied continuously from a supply source 12, such as a hopper, and guided around
  • the fiberglass sleeve 10 passes through a sizing die 18 before being guided into
  • an annealing oven 20 where the fiberglass sleeve 10 is preheated to remove organic starches and
  • the fiberglass sleeve 10 is guided around a roller 22, down into a dip pot 24 and around
  • dip pot 24 to accomplish the coating composition application step.
  • the fiberglass sleeve 10 advances through the sizing die 32 to accomplish the shaping step before entering curing oven 34,
  • the fiberglass sleeve 10 is guided around a roller 36 and through cooling tube 38
  • sleeve travels through powered puller rollers 42 and collected onto take-up reel 44.
  • Fig. 2 shows a schematic diagram of an embodiment of the present invention in which a
  • roller 60 around roller 60 through the powered puller rolls 62 and collected onto take-up reel 64.
  • Example 1 describes the preparation of a coating composition within the scope of the present invention and the application of the composition to fiberglass
  • HMMM hexamethyoxymethylmelamine
  • the coating composition was applied to a continuous length of braided fiberglass sleeve having an inside diameter of 0.276 in. and a wall thickness of about 13 mils by passing the
  • the coating composition was
  • a coating composition was made in accordance with Example 1. To the coating composition was added 1 kilogram of surface-activated, high-density polyethylene powder, sold
  • VISTAMER ® HD by Composite Particles, Inc., having an average particle size of about 18 microns and a molecular weight of about 100,000.
  • Example 2 The coating composition of Example 2 was applied to and cured on a continuous length of the same size braided fiberglass sleeving used in Example 1 in accordance with the procedures
  • test method ARP-1536-A The abrasion-resistance of four samples of each of the coated articles of the examples were tested in accordance with test method ARP-1536-A. This method was conducted at ambient
  • this test method requires a stainless steel mandrel
  • the fiberglass sleeving was then subjected to repetitive stress by an abrasive element
  • the abrasive element was oriented
  • preferred coatings of the present invention applied to fibrous substrates have the additional property of minimizing fray at cut ends thereof.
  • Such coatings are further able to be used in environments having a continuous operating temperatures of up to about 180°C and for short durations in environments having temperatures of up to about 200 °C. This advantageous
  • Comparative Examples 1 and 2 describe certain prior art coating
  • compositions applied to fiberglass sleeves and the abrasion characteristics thereof are particularly useful as adhesives and the abrasion characteristics thereof.
  • composition is acrylic-based and the other is a silicone rubber composition.
  • the abrasion- resistance of the two coated fiberglass sleeves were then tested in accordance with the test
  • the length of the compressed sleeving was then measured to determine the percent compression.
  • the coated fiberglass sleeves of the present invention were capable of about 10 percent more compression

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention porte sur un procédé de revêtement d'un substrat (10) textile de façon à obtenir un article flexible, résistant à l'abrasion, ce procédé consistant à appliquer sur le substrat (10) une composition (28) de revêtement thermodurcissable et polymérisable aux UV de façon à former un revêtement double couche diélectrique. L'invention porte également sur les articles recouverts.
EP99958938A 1998-11-12 1999-11-12 Procede de revetement d'articles et articles recouverts Withdrawn EP1169167A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19063698A 1998-11-12 1998-11-12
US190636 1998-11-12
PCT/US1999/026840 WO2000027606A1 (fr) 1998-11-12 1999-11-12 Procede de revetement d'articles et articles recouverts

Publications (1)

Publication Number Publication Date
EP1169167A1 true EP1169167A1 (fr) 2002-01-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99958938A Withdrawn EP1169167A1 (fr) 1998-11-12 1999-11-12 Procede de revetement d'articles et articles recouverts

Country Status (2)

Country Link
EP (1) EP1169167A1 (fr)
WO (1) WO2000027606A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE3121241C2 (de) * 1980-05-28 1984-07-19 Dainippon Ink And Chemicals, Inc., Tokio/Tokyo Verfahren zum Herstellen eines Verbundkunststoffrohres aus thermoplastischem Harz
DE3033264C2 (de) * 1980-09-04 1984-06-20 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von mit thermoplastischen Kunststoffpasten imprägnierten porösen textilen Trägerbahnen
US5019197A (en) * 1988-11-07 1991-05-28 Henderson Lionel A Method of making composites having layers of the same or different firmness
JPH05254070A (ja) * 1992-03-10 1993-10-05 Kawashima Textile Manuf Ltd 車両内装材
AT400550B (de) * 1992-05-15 1996-01-25 Isovolta Komprimierbares prepreg auf der basis von mit duromeren kunstharzen imprägnierten flächigen trägermaterialien, ein verfahren zu dessen herstellung sowie dessen verwendung
US5733607A (en) * 1996-01-31 1998-03-31 Mangum; Rufus M. Method and apparatus for coating and curing fiberglass sleeving with an ultraviolet light curable acrylic
US5780366A (en) * 1996-09-10 1998-07-14 International Business Machines Corporation Technique for forming resin-impregnated fiberglass sheets using multiple resins

Non-Patent Citations (1)

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Title
See references of WO0027606A1 *

Also Published As

Publication number Publication date
WO2000027606A1 (fr) 2000-05-18

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