Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
• • 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
  • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
  • A62D5/00—Composition of materials for coverings or clothing affording protection against harmful chemical agents
• • 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
  • C09D111/00—Coating compositions based on homopolymers or copolymers of chloroprene
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
  • C09D123/26—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment
  • C09D123/28—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
  • C09D123/283—Halogenated homo- or copolymers of iso-olefines
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
  • C09K21/00—Fireproofing materials
  • C09K21/14—Macromolecular materials
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
  • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N3/10—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with styrene-butadiene copolymerisation products or other synthetic rubbers or elastomers except polyurethanes

Definitions

• the invention relates to a method for coating fabric-like webs with at least one coating of a predetermined thickness to be achieved according to the preamble of claim 1, and a combination of starting materials as a means for the individual coating and a product of the method and its use for the production of protective Articles of clothing.
• the invention is described below in connection with the drawing.
• the single figure shows schematically an apparatus for carrying out the method according to the invention, the proportions of the rollers and the layers not being shown in a realistic manner in order to better illustrate the invention
• a fabric to be coated for example, on one side is guided as a fabric web 1 around a roller 2 which is driven by means which are not shown in more detail and which is referred to below and for reasons which can be seen later, as a counter-pressure roller 2.
• This counter-pressure roller 2 rotates in the direction of arrow 3 in order to transport the fabric web, as indicated by arrows 4 and 5.
• the fabric web 1 can either not yet be provided or can be provided with one or more coating layers, in which case a further coating layer must be applied to the fabric web 1.
• a coating composition 6 based on rubber is introduced between an application roller 7 and a distribution roller 8, both of which rotate in relation to one another, as indicated by the arrows 9 and 10.
• a coating composition based on unvulcanized bromobutyl rubber can be used, the detailed composition of which is given below.
• the coating composition 6 contains gas bubbles 11 which have come in during its manufacture, as will be explained further below.
• the coating composition 6 is taken up between the distributor roller 8 and the application roller 7, formed in the gap between these rollers as a layer 12 of a certain thickness, and then transported on the circumference of the application roller 7 in the direction of the fabric web 1 and into the gap between the application roller 7 and the Back pressure roller 2 introduced.
• the layer 12 is transferred to the fabric web 1, which is likewise introduced between the application roller 7 and the counter-pressure roller 2, as a coating layer 13.
• the individually applied coating layers 13 together form a fire-resistant and fire-retardant coating that is not shown and designated in detail.
• the gap or distance designated S between the application roller 7 and the counter-pressure roller 2 is dimensioned such that it is smaller than the thickness of the fabric web 1 together with the layer 12 , so that the layer 12 to be introduced into the gap S is squeezed. In other words, the individual coating layer 13 is thinner than the layer 12.
• This pressing also ensures sufficient adhesion of the coating layer 13 to the fabric web 1 and, in the case of a still uncoated fabric web 1, a certain penetration of the material of the coating composition 6 into the fabric web 1.
• a bead 14 made of the material of the coating composition 6 is formed directly in front of the application roller 7 on the side of the fabric web 1 facing the counter-pressure roller 2.
• This bead 14 also contains bubbles 11, which accumulate in the bead 14 because they be squeezed back there when the layer 12 is squeezed. It goes without saying that when the method is carried out, the rotational speeds of the rollers are set such that the coating composition 6 supplied as layer 12 is equal in volume to the coating composition carried away in individual coating layer 13.
• the phenomenon is comparable to the known effect of the compression of a porous body (foam, sand, ceramic to be sintered): in all these cases, the applied pressure propagates from the pressure surfaces (press base and press cover) only to a limited depth range of the material, while the central area of the material experiences less or no effect of the pressure.
• the gas inclusions or bubbles 11 in the coating layer can be avoided if they are made so thin that the areas of the coating layer in which the pressure exerted by the application roller and the counter-pressure roller propagates from the surface to the center of the coating layer, at least meet and possibly overlap near the center of the coating layer.
• the gap or distance S between the application roller 7 and the counter-pressure roller 2 is set very thin.
• the coating layer 13 is thus made relatively thin, so that the bubbles contained near the center of the coating layer, as shown at 15, are pushed back into the outer region of the bead 14, where they burst into the atmosphere over time.
• the thickness of the coating layer should be less than 0.7 mm, a better, preferred value is 0.3 mm.
• the tightness of the coating layer is increased according to the invention by making the coating layer significantly thinner.
• the distributor roller 8 and the application roller 7 can be kept at an elevated temperature and the coating material 6 can be preheated to approximately the same or a higher temperature, while the counter-pressure roller 2 is kept just above room temperature.
• the vulcanization of the coating layers can be carried out after the application of the same in a conventional manner known per se by heating the coated fabric.
• a fire-retardant, preferably fire-retardant rubber material is selected as the material of the further coating layer or, if the multilayer coating consists of more than two layers, as material of the last-formed or applied coating layer, the chemical composition of which is explained below.
• a pure cotton fabric can be used to carry out this method, for example etamine with a basis weight of about 250 g / m 2.
• etamine with a basis weight of about 250 g / m 2.
• the fire-retardant coating layer can preferably be glued onto the gas-resistant coating layer / s.
• a material based on bromobutyl rubber brominated isobutylene-isoprene polymer
• a suitable adhesive which essentially consists of a solution of bromobutyl rubber in gasoline stick on.
• a suitable adhesive which essentially consists of a solution of bromobutyl rubber in gasoline stick on.
• a suitable adhesive which essentially consists of a solution of bromobutyl rubber in gasoline stick on.
• Such a mixture of hydrocarbons in which bromobutyl rubber can be readily dissolved is preferably used as gasoline: for example, a gasoline with a boiling range from 80 ° C.
• a preferred coating composition for carrying out the process for the first or fabric-side layer of the coating contains at least 40% by weight of bromobutyl rubber (brominated isobutylene-isoprene polymer), at least 10% by weight of silicon dioxide, at least 10% by weight of sodium.
• bromobutyl rubber brominated isobutylene-isoprene polymer
• silicon dioxide at least 10% by weight of sodium.
• the preferred first or fabric-side layer of the coating is therefore a layer of bromobutyl rubber.
• the same coating compound can be used for the next layer and for further layers, or, depending on the desired or required properties of the end product, natural rubber, for example, ie one or more layers of bromobutyl rubber can be coated with one or more layers of natural rubber, which is indicated known manner can be achieved using a coating composition known per se.
• a preferred material for carrying out the method for the fire-retardant coating layer contains at least 30% by weight of chloroprene rubber, at least 10% by weight of a rubber which consists of natural rubber, polybu tadiene rubber, styrene-butadiene rubber and whose mixtures formed group is selected, at least 20 wt .-% sodium aluminum silicate hydrate, and additions of active zinc oxide, magnesium oxide, antimony trioxide, zinc borate, coumarone-indene resin, vulcanization accelerator, antioxidant, paraffin waxes, plasticizers and fillers.
• a preferably usable, combat gas-resistant coating composition contains more than 50% by weight of bromobutyl rubber, more than 18% by weight of silicon dioxide as precipitated pure silica of 15 to 20 ⁇ m particle size, and more than 18% by weight of sodium aluminum silicate as a precipitated hydrate of 20 to 50 ⁇ m particle size, about 3.7% by weight of polybutene polymer as plasticizer, about 2.5% by weight of active carbon black and about 2.5% by weight of active zinc oxide as active fillers, about 0.7% by weight of pentaerythritol ester as a resin, about 0.5% by weight of stearic acid as Lubricant, about 0.7% by weight mercaptobenzothiazole sulfide as a vulcanization retarder, about 0.2% by weight morpholine disulfide as a vulcanization accelerator, about 0.2% by weight dipentamethylene thiuram hexasulfide as a sulfur donor and about 0.5% by weight Polytrimethyldi
• the ingredients are mixed, for example, in a Banbury mixer at a temperature rising from 60 ° C. to 105 ° C. for about 10 minutes, and the coating composition is then used.
• the distributor roller 8 and the application roller 7 are kept, for example, at a temperature of approximately 100 ° C. to 125 ° C., while the counter-pressure roller 2 is kept at a temperature of 30 ° C. to 40 ° C.
• this contains over 33% by weight of chloroprene rubber, over 15% by weight sodium aluminum silicate as kaolinite with a particle size of 2 ⁇ m, and over 7% by weight sodium aluminum -Silicate as precipitated hydrate of 20 to 50 nm particle size, about 8% by weight of natural rubber, about 5% by weight of polybutadiene rubber, about 4% by weight of antimony trioxide as fire retardant, about 3% by weight of S.tyrol- Butadiene rubber, about 3% by weight of tricresyl phosphate as a non-flammable plasticizer, about 2% by weight of active zinc oxide as an active filler, about 2% by weight of coumarone-indene resin as a plasticizer, about 2% by weight of magnesium oxide as a chlorine acceptor, about 2% by weight .-% zinc borate as fire retardant about 1 wt .-% 1-methyl-cyclohexyl derivative
• a preferably usable, fire-retardant coating contains over 33% by weight of chloroprene rubber, over 19% by weight sodium aluminum silicate as kaolinite of about 2 ⁇ m particle size, over 11% by weight styrene Butadiene rubber, over 6% by weight sodium aluminum silicate as a precipitated hydrate of 20 to 50 nm particle size, about 5% by weight antimony trioxide as a fire retardant, about 3% by weight tricresyl phosphate as a non-flammable plasticizer, about 3% by weight.
• the coating according to the invention can consist, for example, of
• Basis weight results in a coated fabric with a thickness, for example in the range from 1.10 to 1.20 mm.
• a larger thickness is used for shoe soles, for example in the range from 1.5 to 2.5 mm, by applying a thicker or an additional outer layer.
• a desired object for example a shoe
• this object being vulcanized to the end, for example by heating to 135 ° C. to 140 ° C. for about an hour, optionally under a gas atmosphere and / or under increased pressure from a few bars.
• the rubber-based adhesive that may be used is also converted into a real rubber layer, while the solvent used, provided it does not get to an outer surface by diffusion and escape there, is distributed throughout the entire mass of the coating.
• this fabric When using the specified composition of the coating composition to produce a two-layer coating on a coated fabric of about 1.15 mm thick, this fabric is impermeable to yperite and Lewisite for more than 8 hours at 37 ° C.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Textile Engineering (AREA)
• General Chemical & Material Sciences (AREA)
• Wood Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Laminated Bodies (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Paints Or Removers (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Priority Applications (4)

Applications Claiming Priority (4)

Publications (1)

Family

ID=25685069

Family Applications (1)

Country Status (10)

Cited By (2)

Families Citing this family (1)

Citations (1)

• 1987
  • 1987-09-29 PT PT85825A patent/PT85825A/pt not_active Application Discontinuation
  • 1987-09-30 HU HU874774A patent/HUT46754A/hu unknown
  • 1987-09-30 WO PCT/CH1987/000128 patent/WO1988002415A1/de not_active Application Discontinuation
  • 1987-09-30 JP JP62505586A patent/JPH01501215A/ja active Pending
  • 1987-09-30 EP EP87906062A patent/EP0285621A1/de not_active Withdrawn
  • 1987-09-30 YU YU01807/87A patent/YU180787A/xx unknown
  • 1987-10-01 ES ES8702803A patent/ES2005362A6/es not_active Expired
• 1988
  • 1988-06-01 NO NO1988882416A patent/NO882416D0/no unknown
  • 1988-06-01 FI FI882584A patent/FI882584A0/fi not_active Application Discontinuation
  • 1988-06-01 KR KR1019880700615A patent/KR880701800A/ko not_active Application Discontinuation

Patent Citations (1)

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