WO2019245337A1 - Matériau renforcé par du caoutchouc, son procédé de production, et pneu le comprenant - Google Patents

Matériau renforcé par du caoutchouc, son procédé de production, et pneu le comprenant Download PDF

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Publication number
WO2019245337A1
WO2019245337A1 PCT/KR2019/007540 KR2019007540W WO2019245337A1 WO 2019245337 A1 WO2019245337 A1 WO 2019245337A1 KR 2019007540 W KR2019007540 W KR 2019007540W WO 2019245337 A1 WO2019245337 A1 WO 2019245337A1
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WO
WIPO (PCT)
Prior art keywords
rubber
tire
weight
layer
reinforcement
Prior art date
Application number
PCT/KR2019/007540
Other languages
English (en)
Korean (ko)
Inventor
전옥화
김다애
이민호
최송연
임종하
Original Assignee
코오롱인더스트리 주식회사
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
Priority claimed from KR1020180071516A external-priority patent/KR102402636B1/ko
Priority claimed from KR1020180115877A external-priority patent/KR102427757B1/ko
Application filed by 코오롱인더스트리 주식회사 filed Critical 코오롱인더스트리 주식회사
Publication of WO2019245337A1 publication Critical patent/WO2019245337A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/12—Carcasses built-up with rubberised layers of discrete fibres or filaments
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J119/00—Adhesives based on rubbers, not provided for in groups C09J107/00 - C09J117/00
    • C09J119/02—Latex
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof

Definitions

  • the present invention relates to a lightweight rubber reinforcement that can reduce the weight of a tire, a method of manufacturing the same, and a tire including such a rubber reinforcement.
  • Tire cords are classified according to the parts and roles used, and can be broadly classified into a carcass that supports the tire as a whole, a belt that prevents load support and deformation due to high speed driving, and a cap fly that prevents deformation of the belt (FIG. 1).
  • a carcass that supports the tire as a whole a belt that prevents load support and deformation due to high speed driving
  • a cap fly that prevents deformation of the belt
  • Materials for belts, carcasses, and cap plies include, for example, nylon, rayon, aramid, and polyesters including. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • nylon is used in tires of various sizes because of its low price, excellent adhesive performance, and excellent post-fatigue adhesion performance.
  • One of the main functions of the cap fly is to support the belt at high speed.
  • Nylon has a high shrinkage stress, and it is excellent in supporting the belt at high speed.
  • nylon has a low modulus value and at the same time has a weak point as a cap fly, such as causing a flat spot, which is a phenomenon in which the tire is deformed because the change is large at room temperature and high temperature.
  • Aramid has lower shrinkage stress, excellent creep properties and very high modulus properties compared to nylon.
  • the change amount of modulus of aramid at room temperature and high temperature is small, and when aramid is used, the flat spot phenomenon hardly arises even after a long time parking.
  • Such aramid is mainly used in high-grade tires, where the quality of the tire is very important, but it is difficult to be applied to general-purpose tires due to the high price.
  • aramid has a high modulus, it is difficult to be applied to a general tire because it is very difficult to expand during tire molding and vulcanization, it is difficult to ensure long-term durability due to low elongation.
  • Nylon, rayon, aramid, Tire cords made of fibers such as polyester or hybrid twisted yarn are generally rolled together with the rubber component for adhesion with rubber. That is, the rolling process is involved in the tire manufacturing process.
  • the process cost is increased, the density of the tire is increased more than necessary due to the rolling, the weight of the tire may be unnecessarily increased.
  • Rolling resistance is related to the weight of the tire and has a major impact on the car's fuel consumption and carbon dioxide emissions.
  • the higher rolling resistance (R / R) increases the energy required to drive a car.
  • the resistance to rotation, tilt and acceleration of the car is closely related to the car weight. Therefore, studies have been made to reduce the weight of the automobile by reducing the tire weight, and consequently reduce the energy consumption.
  • the present invention is to solve the above limitations and problems of the related art.
  • One embodiment of the present invention to provide a rubber reinforcement having excellent adhesion to the rubber.
  • Another embodiment of the present invention even with a thin thickness to provide a rubber reinforcement that can express the low performance of the tire reinforcement.
  • Another embodiment of the present invention to provide a rubber reinforcement that can contribute to the thickness of the rubber layer and the weight reduction of the tire.
  • Another embodiment of the present invention to provide a rubber reinforcement that can be maintained to the durability of the tire.
  • Another embodiment of the present invention is to provide a rubber reinforcement having a thin rubber compound layer, which is difficult to achieve through a rolling process using a rubber in a solid state.
  • Another embodiment of the present invention is to provide a rubber reinforcing material that has excellent adhesion to rubber without undergoing a rolling process during a tire manufacturing process, and may have the same level of durability as a tire manufactured by rolling. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • Another embodiment of the present invention to provide a method for producing such a rubber reinforcement and a tire comprising such a rubber reinforcement.
  • an embodiment of the present invention includes a fiber substrate, an adhesive layer disposed on the fiber substrate and a rubber compound layer disposed on the adhesive layer, the adhesive layer is resorcinol-formaldehyde- Latex 03 ⁇ 4 ⁇ ), wherein the rubber compound layer is formed by a rubber compound liquid, wherein the rubber compound liquid is 10 to 40% by weight of the elastomeric composition and 60 to 90% by weight based on the total weight of the rubber compound liquid.
  • a rubber reinforcement comprising a solvent.
  • the rubber compound layer has a thickness of 5,200.
  • the elastomeric composition includes at least one elastomer selected from natural rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, isobutylene rubber, isotrene rubber, nitrile rubber, butyl rubber and neoprene rubber.
  • the solvent includes at least one selected from toluene, naphtha, methanol, xylene and tetrahydrofuran.
  • the fiber substrate is And textile substrates.
  • Another embodiment of the present invention preparing a fiber substrate, forming an adhesive layer on the fiber substrate, and applying a rubber compound liquid on the adhesive layer and heat treatment to form a rubber compound layer on the adhesive layer Comprising the step, wherein the rubber compound liquid provides a method for producing a rubber reinforcement, including 10 to 40% by weight of the elastomeric composition and 60 to 90% by weight of the solvent relative to the total weight of the rubber compound liquid.
  • the rubber compound layer has a thickness of 5 / pad 200.
  • the elastomeric composition is natural rubber, styrene butadiene rubber, butadiene 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • At least one elastomer selected from rubber, chlorostyrene rubber, isobutylene rubber, isotrene rubber, nitrile rubber, butyl rubber and neoprene rubber.
  • the solvent includes at least one selected from toluene, naphtha, methanol, xylene and tetrahydrofuran.
  • Another embodiment of the present invention includes a fiber base material and a rubber coating layer on the fiber base material, the rubber coating layer is formed by a rubber coating liquid, the rubber coating liquid, based on the total weight of the rubber coating liquid, 5 to 30 weight A rubber reinforcement is provided, comprising% rubber compound solids and 70 to 95 weight percent solvent.
  • the rubber coating layer has a thickness of 10 to 100 _.
  • the rubber compound solids include at least one rubber component selected from natural rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, isobutylene rubber, isoprene rubber, nitrile rubber, butyl rubber and neoprene rubber and carbon black.
  • the rubber compound solids includes 50 to 78 parts by weight of the rubber component and 22 to 50 parts by weight of carbon black, based on 100 parts by weight of the total.
  • the solvent includes at least one selected from toluene, naphtha, methanol, xylene and tetrahydrofuran.
  • the rubber coating liquid has a viscosity of 200 to 90, 000 acid 5 .
  • the fiber substrate is any one of a fiber yarn (31 ⁇ !!), a textile substrate and a cord.
  • the rubber reinforcement further includes an adhesive layer on the fiber substrate, and the rubber coating layer is disposed on the adhesive layer.
  • the adhesive layer includes resorcinol-formaldehyde-latex (3 ⁇ 4 ⁇ ).
  • Another embodiment of the present invention provides a tire including the rubber reinforcement.
  • the rubber reinforcing material according to an embodiment of the present invention has excellent adhesion to rubber, it may be strongly adhered to rubber without undergoing a rolling process in a tire manufacturing process. According to the present invention, since the rubber reinforcement is adhered to the rubber without going through the rolling process, the tire manufacturing cost is reduced, the rolling density is increased more than necessary, and the tire weight is unnecessarily increased. Is prevented.
  • the rolling process may be omitted, and thus the tire manufacturing process may be simplified, and the thickness and total weight of the tire may be reduced. This can be reduced.
  • the adhesion of the rubber reinforcement material is greatly increased, and the air pocket (show ⁇ This decrease reduces the tire failure rate.
  • the tire according to the present invention may have the same level of durability as that of the tire manufactured through the rolling process, even if the tire is manufactured without the rolling process.
  • the tire weight is reduced by the rubber reinforcing material having a thin thickness and excellent rubber reinforcement performance, thereby reducing rolling resistance / ⁇ , improving fuel economy of the vehicle, and also lowering carbon dioxide emissions.
  • the lightweight tire reinforcing material according to an embodiment of the present invention is applied, the tire is made lightweight, and the fuel efficiency and economical efficiency of the electric vehicle can be improved.
  • FIG. 2 is a schematic cross-sectional view of a rubber reinforcement according to an embodiment of the present invention.
  • FIG. 3 is a schematic view of a twisted yarn.
  • FIG. 4 is a schematic cross-sectional view of a rubber reinforcement according to another embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional view of a rubber reinforcement according to another embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional view of a rubber reinforcement according to another embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional view of a rubber reinforcement according to another embodiment of the present invention.
  • FIG. 8 is a schematic cross-sectional view of a rubber reinforcement according to another embodiment of the present invention.
  • temporal after-term relationship for example, when the temporal after-term relationship is described as 'after 1 ', 'after', 'after', 'before', etc., the expression 'immediately' or 'direct' is not used. It may also include cases that are not continuous unless otherwise noted.
  • One embodiment of the present invention provides a tire 101 comprising rubber reinforcements 201 and 301 (see FIGS. 1 and 2).
  • 1 is a partial cutaway view of a tire 101 in accordance with one embodiment of the present invention.
  • the tire 101 is a tread (63 ( 5) (10), shoulder (3110111 (1) (20), sidewall ( ⁇ 311) (30), bead 0368 (1) (40) , Belt 03610 (50), inner liner (111 1 61 ⁇ ) 60, carcass (030833) 70, and cap plies 17) 90.
  • the tread 10 is the part that directly contacts the road surface.
  • the tread 10 is a strong rubber layer attached to the outside of the cap ply 90 and is made of rubber having excellent abrasion resistance.
  • the tread 10 plays a direct role in transmitting the driving and braking force of the vehicle to the ground. Grooves (recesses) are formed in the tread 10 region.
  • the shoulder 20 is a corner portion of the tread 10 that is connected to the side wall 30.
  • Shoulder 20, along with sidewall 30, is one of the weakest parts of a tire.
  • Sidewall 30 is a tire 101 that connects the tread 10 and the bead 40. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the bead 40 is a region containing an iron wire wound around the end of the carcass 70, and has a structure that coats the cord with a rubber film.
  • the bead 40 serves to mount and secure the tire 101 to the turbulence ( ⁇ vheel tail).
  • the belt 50 is a coat layer located midway between the tread 10 and the carcass 70.
  • the belt 50 serves to prevent damage to internal components such as the carcass 70 due to an impact from the outside or external conditions, and keeps the shape of the tread 10 flat so that the tire 101 and the road surface Ensure that the contact is best maintained.
  • the belt 50 may include rubber reinforcements 201 and 301 according to another embodiment of the present invention (see FIGS. 2 and 4).
  • the inner liner 60 is a tubeless (used instead of a tube in a retirement tire, and is made of special rubber that is not air permeable or very little.
  • the inner liner 60 prevents air filled in the tire 101 from leaking.
  • the carcass 70 is made by stacking several sheets of cord paper made of strong synthetic fibers, and is an important part for forming the skeleton of the tire 101.
  • Carcass 70 serves to withstand the load, the septum received by the tire 101 and to maintain the air pressure.
  • Carcass 70 may include a rubber reinforcement (201, 301) according to another embodiment of the present invention,
  • Groove 80 refers to coarse groove 0 in the tread region.
  • the groove 80 functions to increase the drainage of the tire when driving on wet roads.
  • the cap fly 90 is a protective layer under the tread 10 to protect other components therein.
  • the cap fly 90 is essential for high speed traveling vehicles. In particular, as the running speed of an automobile increases, problems such as deterioration of ride comfort due to deformation of the belt portion of the tire have occurred, and the importance of the cap fly 90 for preventing deformation of the belt portion is increasing.
  • Cap fly 90 may be made of a rubber reinforcement (201, 301) according to another embodiment of the present invention.
  • the tire 101 according to an embodiment of the present invention includes rubber reinforcements 201 and 301.
  • the rubber reinforcements 201 and 301 may be applied to the cap ply 90 and may be applied to at least one of the belt 50 and the carcass 70.
  • the rubber reinforcement 201, 301 is a fibrous substrate 210, 110, an adhesive layer 220 disposed on the fiber substrate 210, 110 and a rubber compound disposed on the adhesive layer 220.
  • Layer 230 is a fibrous substrate 210, 110, an adhesive layer 220 disposed on the fiber substrate 210, 110 and a rubber compound disposed on the adhesive layer 220.
  • the fibrous substrate may be any of fiber yarns 731... And textile substrate 210. Fiber yarns include plywood (110).
  • FIG. 2 is a schematic cross-sectional view of a rubber reinforcement 201 according to another embodiment of the present invention.
  • the rubber reinforcement 201 of FIG. 2 illustrates the use of a textile substrate 210 as the fiber substrate.
  • fiber yarns 731 ⁇ !! may be used as the fiber substrate.
  • a fabric composed of woven fiber yarns !! can be used as the textile substrate 210.
  • a fiber yarn for example, a conjugate twisted yarn 110 composed of two or more lower twisted yarns 111 and 112 can be used (see FIG. 3).
  • Fiber yarns are made of nylon, rayon, aramid and It may include at least one of the polyesters included.
  • a fabric made using polyester, including nylon, rayon, aramid and can be used as the textile substrate 210.
  • the textile substrate 210 may be made by the weaving of the twisted yarn 110 made of lower twist yarns 111 and 112 selected from nylon, rayon, aramid and polyester.
  • the twisted yarn 110 includes hybrid twisted yarns in which two or more lower twisted yarns that are not identical to each other are staging.
  • hybrid twisted yarn may include, for example, nylon low twisted yarn and aramid low twisted yarn.
  • 3 is a schematic diagram of the twisted yarn 110.
  • the twisted yarn 110 includes a first lower twisted yarn 111 and a second lower twisted yarn 112, and the first lower twisted yarn 111 and the second lower twisted yarn 112 are staged together. have.
  • the first lower twisted yarn 111 has a first twisting direction
  • the second lower twisted yarn 112 has a second twisted direction
  • the first lower twisted yarn 111 and the second lower twisted yarn 112 together have a third twisted twist. It is staged in the direction.
  • the direction may be the same direction as the first twisting direction, and the third twisting direction may be opposite to the first twisting direction.
  • the twist direction is not limited thereto.
  • the first twist and the second twist may be the same or different.
  • the 11 lower twisted yarns 111 and the second lower twisted yarns 112 may have a twist number of, for example, 150 to 50 3 ⁇ 4 3 ⁇ 4.
  • the 11 lower twist yarns 111 and the second lower twist yarns 112 may be the same as or different from each other.
  • the first lower twisted yarns 111 and the second lower twisted yarns 112 may each be selected from polyesters including nylon, rayon, aramid and.
  • the twisted yarn 110 for example, there is a hybrid twisted yarn in which the first lower twisted yarn 111 is nylon and the second lower twisted yarn 112 is aramid.
  • the adhesive layer 220 includes resorcinol-formaldehyde-latex.
  • the adhesive layer 220 may be formed by an adhesive coating liquid containing a resorcinol-formaldehyde-latex needle and a solvent.
  • the adhesive layer 220 may include an epoxy compound layer and a resorcinol-formaldehyde-latex layer disposed on the epoxy compound layer.
  • Resorcinol-formaldehyde-latex also referred to as “13 ⁇ 4”, serves as an adhesive component.
  • Resorcinol-formaldehyde-latex in particular, has the affinity and adhesion between the textile substrate 210, which is a fibrous substrate, and the rubber component.
  • the textile substrate 210 and the rubber compound layer 230 are attached to each other stably without being separated from each other, and defects are prevented from occurring during the manufacturing process of the tire 101.
  • the rubber reinforcing material 201 and the rubber are one in the finished tire after vulcanization. It can be bonded to maintain excellent adhesion.
  • the rubber compound layer 230 may be formed by a rubber compound liquid including an elastomeric composition and a solvent.
  • the rubber compound liquid may comprise 10 to 40 wt% of the elastomeric composition and 60 to 90 wt% of the solvent.
  • the elastomeric composition contained in the rubber compound liquid constitutes the rubber compound layer 230. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the rubber compound liquid may include 10 to 30% by weight of the elastomeric composition and 70 to 90% by weight of the solvent.
  • the content of the elastomer contained in the rubber compound liquid may be 10 to 40% by weight.
  • the elastomeric composition may comprise 30 to 70 weight percent elastomer and 30 to 70 weight percent additive.
  • the elastomeric composition is, for example, natural rubber ⁇ , styrene butadiene rubber ( ⁇ ⁇ , butadiene rubber ⁇ , chloroprene rubber (00 and isobutylene rubber ( ⁇ ⁇ , isoprene rubber (1 ⁇ , nitrile rubber) I), at least one elastomer selected from butyl rubber and neoprene rubber.
  • additives there are additives used to form rubber compounds, for example, carbon black, para oil, zinc oxide, stearic acid, antioxidants, sulfur, vulcanization accelerators, active agents, adhesives, adhesives and the like.
  • the solvent is not particularly limited as long as it is a substance capable of dissolving the elastomer.
  • the material capable of dissolving the rubber component may be used as a solvent according to an embodiment of the present invention.
  • the solvent may include at least one selected from toluene, naphtha, methanol, xylene, and tetrahydrofuran. Toluene, naphtha, methanol, xylene and tetrahydrofuran may be used alone or in combination.
  • the concentration of the elastomeric composition in the rubber compound solution is less than 10% by weight, the thickness of the rubber compound layer 230 becomes thin and adhesion and adhesion are not properly expressed. Accordingly, deterioration of manufacturing characteristics of the tire and a problem of tire failure during driving may occur.
  • This rubber compound layer (230) is made of natural rubber ⁇ , styrene butadiene rubber ( ⁇ 10, butadiene rubber ⁇ , chloroprene rubber (00 and isobutylene). 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the rubber compound layer 230 has a thickness 1) of 5_ to 200_.
  • the thickness 11 of the rubber compound layer 230 is located on the opposite side from the adhesive layer 220 from one side of the rubber compound layer 230 in contact with the adhesive layer 220. Measured by distance to the other side of.
  • the rubber compound layer 230 When the thickness (1: 1) of the rubber compound layer 230 is less than 3 ⁇ 4, the rubber compound layer 230 does not have sufficient adhesiveness and adhesion, thereby deteriorating tire manufacturing characteristics, making it difficult to develop tire durability, Defects may occur.
  • the thickness of the rubber reinforcement 201 may be increased to increase the thickness of the tire.
  • the thickness 1) of the rubber compound layer 230 exceeds 200_
  • bubbles are generated in the rubber compound layer 230 during the volatilization of the solvent, which makes it difficult for the rubber reinforcing material 201 to have a uniform thickness. Air in the tire when applied to the tire To reduce tire quality and to increase the defective rate.
  • the coating operation must be performed several times to form the thick rubber compound layer 230, which is inefficient in process and may result in deterioration of the tire quality and defective rate.
  • the rubber compound layer 230 may have a thickness 1) of 5 ⁇ to 30 ⁇ .
  • a rubber substrate is rolled on the fiber substrates 210 and 110 to form a rubber layer corresponding to the rubber compound layer 230 of the present invention. Since the rubber substrate has a predetermined thickness, the rubber layer of the rubber reinforcement formed according to the conventional method generally has a thickness of 1000, or more, and at least 800_ or more.
  • the rubber compound layer 230 may have a thin thickness (1: 1) of 200 ⁇ or less because it is formed by dipping or coating a rubber compound liquid.
  • the compound layer 230 has a thin thickness (b) of 5 to 200, the overall thickness of the rubber reinforcement 201 becomes thin. Thus, the thickness of the tire using this rubber reinforcement 201 can be thinned.
  • the rubber reinforcement 201 may be applied to the cap ply 90, the belt 50, or the carcass 70 of the tire 101.
  • FIG. 4 is a schematic cross-sectional view of a rubber reinforcement 301 according to another embodiment of the present invention.
  • the rubber reinforcement 301 of FIG. 4 illustrates the use of a twisted yarn 110 as a fiber substrate.
  • the twisted yarn 110 may be formed by two or more lower twisted yarns 111 and 112 as described above.
  • one embodiment of the present invention is not limited thereto, and other twisted yarns known in the art may be used to prepare the rubber reinforcement 301.
  • the rubber reinforcing material 301 is a fiber-based joint twisted yarn 110, an adhesive layer 220 disposed on the twisted yarn 110 and a rubber compound layer disposed on the adhesive layer 220. 230.
  • a method of manufacturing the rubber reinforcing materials 201 and 301 may include preparing the fiber substrates 210 and 110 and forming the adhesive layer 220 on the fiber substrates 210 and 110. And applying a rubber compound liquid on the adhesive layer 220 and heat treatment to form the rubber compound layer 230 on the adhesive layer 220.
  • the fibrous substrates 210 and 110 may be any one of the fiber yarns 31... And the textile substrate 210.
  • Plywood yarn 110 may be used as the fiber yarn.
  • Textile substrate 210 is formed by weaving fiber yarns 11.
  • As the twisted yarn 110 a hybrid twisted yarn composed of two or more lower twisted yarns that are not identical to each other may be used. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the hybrid twisted yarn may include nylon low twisted yarn and aramid low twisted yarn.
  • Nylon low twist yarns may have a fineness of 300 to 2000 (and more specifically, may have a fineness of 1100 to 1400 (.)
  • Aramid low twist yarns may have a fineness of 500 to 3000 (1 (3 fineness, more specifically 1300). It may have a fineness of from 1700 (for example, 300 to 2000 filament nylon filament as the first lower yarn (111), 500 to 3000 (aramid filament as the second secondary yarn 112), Cable coder 0: 16 sets)
  • the twisted yarns 110 can be produced by simultaneously performing the lower and upper edges in the counterclockwise direction and the upper edge in the clockwise direction using a twisting machine, respectively. It can have a twist of 1 3 ⁇ 41.
  • the adhesive layer 220 is formed on the fiber base 210, 110.
  • the adhesive layer 220 may be formed by an adhesive coating liquid comprising resorcinol-formaldehyde-latex (needle and a solvent.
  • the step of forming the adhesive layer 220 may include an adhesive coating liquid on the fiber bases 210 and 110. It may include the step of applying and heat treatment.
  • the fiber base (210, 110), by dipping ((1 13 ⁇ 4) in the adhesive coating may be such that the adhesive coating applied onto the fiber base (210, 110).
  • a fiber base (210, 110) The dipping process can be accomplished by passing through the adhesive coating liquid, which can be done in 13 ⁇ 4 ( ⁇ 16) for the dipping apparatus ([ ) 1 ⁇ 11 where tension, dipping time and temperature can be controlled.
  • the adhesive coating liquid may be applied onto the fiber substrates 210 and 110 by coating using a blade or coater or spraying using an injector.
  • the forming of the adhesive layer 220 may further include applying an adhesive coating solution on the fiber substrates 210 and 110 and heat-treating for 130 to 170 ° (: 80 to 120 seconds).
  • the resorcinol-formaldehyde-latex (coarse layer 222 is cured and 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the adhesive layer 220 may be more stably formed.
  • the rubber compound liquid includes the elastomeric composition and the solvent. Specifically, the rubber compound liquid includes 10 to 40 wt% of the elastomeric composition and 60 to 90 wt% of the solvent. Considering the volatilization of the solvent contained in the rubber compound liquid, on the basis of the preparation, the rubber compound liquid may include 10 to 30% by weight of the elastomeric composition and 70 to 90% by weight of the solvent. In this case, when the solvent is volatilized after preparing the rubber compound liquid, the content of the elastomer contained in the rubber compound liquid may be 10 to 40% by weight.
  • the concentration of the elastomeric composition in the rubber compound solution is less than 10% by weight, the thickness () of the rubber compound layer 230 becomes thin and adhesion and adhesion may not be properly expressed. Accordingly, a problem of deterioration of manufacturing characteristics of the tire and tire failure during driving may occur.
  • the concentration of the elastomeric composition in the rubber compound liquid exceeds 40% by weight, the viscosity of the rubber compound liquid due to the agitation of the adhesive liquid is lowered, the dispersibility of the rubber compound liquid is lowered, resulting in a decrease in coating properties, coating thickness nonuniformity And so on.
  • the concentration of the elastomeric composition is adjusted in the range of 10 to 40% by weight.
  • the elastomeric composition may comprise 30 to 70 wt% of the elastomer and 30 to 70 wt% of the additive.
  • the elastomeric composition may be, for example, natural rubber ( ⁇ ), styrene butadiene rubber (butadiene rubber seedling), chloroprene rubber (00 and isobutylene rubber (myo), isoprene rubber (110, nitrile) It may include at least one elastomer selected from rubber (parent), butyl rubber and neoprene rubber as additives such as carbon black, para oil, zinc oxide, stearic acid, antioxidant, sulfur, vulcanization accelerator, activator, adhesive, adhesive, etc. There is this.
  • the solvent may comprise at least one selected from toluene, naphtha, methanol, xylene and tetrahydrofuran, which may be alone or 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the fibrous substrates 210, 110 coated with the adhesive layer 220 may be immersed in the rubber compound liquid. By this immersion, a rubber compound liquid is applied onto the adhesive layer 220.
  • the rubber compound liquid may be applied on the adhesive layer 220 by a coma coating using a comma coater.
  • the coating may be made at a temperature condition of 80 to 100 ° C. This temperature corresponds to the lowest temperature at which the solvent can be volatilized.
  • the coating of the rubber compound liquid may be performed by a gravure coating method, a micro gravure coating method, or the like.
  • the coated rubber compound liquid may be heat treated. That is, forming the rubber compound layer 230 may include applying a rubber compound liquid on the adhesive layer 220 and then heat treating the rubber compound liquid.
  • the heat treatment may be in a heat treatment apparatus. For heat treatment, heat may be applied for 30 to 150 seconds at a temperature of 80 to 160 ° C. As a result, the rubber compound layer 230 is formed on the adhesive layer 220.
  • the rubber reinforcing materials 201 and 301 are manufactured, and the manufactured rubber reinforcing materials 201 and 301 are wound on a winder.
  • the rubber compound layer 230 may have a thickness t 1 of 5 // m to 200_.
  • the thickness U of the rubber compound layer 230 is less than 5 m, and the rubber compound layer 230 does not have sufficient adhesiveness and adhesive force, thereby deteriorating tire manufacturing characteristics and causing a defect in the tire.
  • the thickness t 1 of the rubber compound layer 230 exceeds 200_, the thickness of the rubber reinforcement 201 may be increased to increase the thickness of the tire.
  • the rubber compound layer 230 may have a thickness t 1 of 5 m to 30.
  • a slitting step may optionally be performed. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • it may further comprise the step of cutting the rubber reinforcing material 201 made of a plate, this cutting is called slitting.
  • the slitting step may be omitted. There is no particular limitation on the method of cutting or slitting.
  • the rubber reinforcement 201 may be cut using a conventional cutter knife or heating knife, in a width of 3 mm to 50 mm or by limiting the number of warp heads. Slitting can be achieved by this. According to another embodiment of the present invention, the cut rubber reinforcement 201 may have a width of 3mm to 50mm.
  • the rubber reinforcements 201 and 301 thus produced can be used, for example, as the cap ply 90 of the tire 101.
  • Rubber reinforcement 201 has excellent adhesion to the rubber, it can be easily attached to the rubber without a conventional rolling process.
  • a rubber reinforcement 201 is used as the cap ply 90, the manufacturing process of the tire can be simplified because the rolling process can be omitted.
  • the adhesion of the cap ply 90 is greatly increased, thereby reducing the air pocket in manufacturing the green tires, thereby reducing the tire failure rate.
  • a thin and light tire 101 can be made because it does not go through a rolling process.
  • These rubber reinforcements 201, 301 may be applied to at least one of the belt and the carcass.
  • Another embodiment of the present invention provides a tire 101 comprising rubber reinforcements 201 ', 301', 401 ', 501' (see FIGS. 1 and 5, 6, 7 8).
  • the tire 101 includes a tread L0, a shoulder 20, a side wal 1 30, a bead 40, and a belt. 50, an inner liner 60, a cascass 70, and a capply 90. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the tread 10 is the part that directly contacts the road surface.
  • the tread 10 is a strong rubber layer attached to the outside of the cap ply 90 and is made of rubber having excellent abrasion resistance.
  • the tread 10 plays a direct role in transmitting the driving and braking force of the vehicle to the ground.
  • Grooves 006 and 80 are formed in the tread 10 region.
  • the shoulder 20 is a corner portion of the tread 10 that is connected to the side wall 30.
  • Shoulder 20, along with sidewall 30, is one of the weakest parts of a tire.
  • the side wall 30 is the side of the tire 101 connecting the tread 10 and the bead 40 to protect the carcass 70 and provide lateral stability to the tire.
  • the bead 40 is a region containing an iron wire wound around the end of the carcass 70, and has a structure that coats the cord with a rubber film.
  • the bead 40 serves to mount and secure the tire 101 to the turbulence ( ⁇ vheel 1 ⁇ 111).
  • the belt 50 is a coat layer located midway between the tread 10 and the carcass 70.
  • the belt 50 serves to prevent damage to internal components such as the carcass 70 due to an impact from the outside or external conditions, and keeps the shape of the tread 10 flat so that the tire 101 and the road surface Ensure that the contact is best maintained.
  • the belt 50 may include rubber reinforcements 201 ⁇ 301 ', 401', 5010 according to another embodiment of the present invention (see Figures 5, 6, 7, 8).
  • the inner liner 60 is a tubeless (used instead of a tube in the muscle tire and is made of special rubber that is not air permeable or very little.
  • the inner liner 60 prevents air filled in the tire 101 from leaking.
  • the carcass 70 is made by stacking several sheets of cord paper made of strong synthetic fibers and is an important part for forming the skeleton of the tire 101.
  • Carcass 70 serves to withstand the load, impact received by the tire 101 and to maintain the air pressure.
  • Carcass 70 may include rubber reinforcement 201 ', 301', 401 ', 501' according to another embodiment of the present invention.
  • Groove 80 refers to coarse groove 0 in the tread region.
  • the groove 80 functions to increase the drainage of the tire when driving on wet roads.
  • the cap fly 90 is a protective layer under the tread 10, with other configurations inside 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the cap fly 90 is essential for high speed traveling vehicles. In particular, as the running speed of an automobile increases, problems such as deterioration of ride comfort due to deformation of the belt portion of the tire have occurred, and the importance of the cap fly 90 for preventing deformation of the belt portion is increasing.
  • the cap ply 90 may be made of rubber reinforcement 201 ', 301', 401 ', 501' according to another embodiment of the present invention.
  • the tire 101 includes rubber reinforcements 201 ', 301', 401 ', and 501'.
  • the rubber reinforcement 201 ', 301', 401 1 , 501 ' may be applied to the carcass 70 and may be applied to at least one of the belt 50 and the cap fly 90.
  • FIG. 5 is a schematic cross-sectional view of a rubber reinforcement 201 'according to another embodiment of the present invention.
  • the rubber reinforcement 201 ' according to another embodiment of the present invention includes a fiber substrate 210' and a rubber coating layer 240 on the fiber substrate 210 '.
  • the fibrous substrate can be either textile substrate 210 'and fiber yarn (three). Fiber yarns include plywood (110).
  • the rubber reinforcement 201 'of FIG. 5 illustrates the use of a textile substrate 210' as a fiber substrate. However, one embodiment of the present invention is not limited thereto, and fiber yarns 731 ⁇ !! may be used as the fiber substrate.
  • a woven fabric using fiber yarns may be used as the textile substrate 210 '.
  • the fiber yarns may comprise at least one of nylon, rayon, aramid and polyester, including.
  • the textile substrate 210 ' may be formed by weaving filaments, or may be formed by weaving using lower twist yarns formed by lower edges of the filaments.
  • another embodiment of the present invention is not limited thereto, and textile substrates 210 'woven by various fibers known in the art may be used as the fiber substrate according to another embodiment of the present invention.
  • the textile substrate 210 ' may be made by weaving a twisted yarn 110 composed of nylon, rayon, aramid, and lower twist yarns 111 and 112 selected from polyesters including (see FIG. 3).
  • the twisted yarn 110 includes hybrid twisted yarns composed of two or more lower twisted yarns that are not identical to each other.
  • hybrid braided twisted yarn may include, for example, nylon low twisted yarn, aramid low twisted yarn, or Megyeon low twisted yarn.
  • the rubber coating layer 240 is disposed on the fibrous substrate. Referring to FIG. 5, the rubber coating layer 240 is disposed on a textile substrate 210 ′ that is a fiber substrate.
  • the rubber coating layer 240 is formed by a rubber coating liquid.
  • the rubber coating liquid may include a rubber compound solids and a solvent.
  • the rubber coating liquid based on the total weight of the rubber coating liquid, 5 to
  • the rubber compound solids contained in the rubber coating liquid constitute the rubber coating layer 240.
  • the concentration of rubber compound solids in the rubber coating liquid is less than 5% by weight, the viscosity of the rubber coating liquid is excessively low, and the thickness of the rubber coating layer 240 becomes thin so that adhesiveness and adhesion cannot be properly expressed. Accordingly, deterioration of manufacturing characteristics of the tire and a problem of tire failure during driving may occur.
  • the rubber coating liquid may include 3 to 25% by weight of rubber compound solids and 75 to 97% by weight of the solvent.
  • the content of the rubber compound solids contained in the rubber coating solution ⁇ ) 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the rubber coating liquid has a viscosity of 200 to 90,000.
  • the viscosity of the rubber coating liquid is 200 0? If less than, due to the high flowability due to the low viscosity of the rubber coating liquid, it may be difficult to perform a coating operation for coating the rubber coating liquid on the fiber substrate, the thickness of the rubber coating layer 240 becomes thinner to express the performance as a tire reinforcement material Difficult to do
  • Rubber compound solids may include rubber components and carbon black.
  • the rubber compound solids are, for example, natural rubber seedlings, styrene butadiene rubber 810, butadiene rubber ⁇ ⁇ , chloroprene rubber (00 and isobutylene rubber ( ⁇ ⁇ , isoprene rubber (1 ⁇ , nitrile rubber (!?),) Carbon black and at least one rubber component selected from butyl rubber and neoprene rubber.
  • the rubber compound solids may further include an additive.
  • Participants include, for example, para-oil, zinc oxide, stearic acid, antioxidants, sulfur, vulcanization accelerators, activators, pressure-sensitive adhesives, and adhesives.
  • the rubber compound solids may comprise 50 to 70 weight percent rubber component, 15 to 40 weight percent carbon black and 5 to 15 weight percent additives relative to the total weight of the rubber compound solids.
  • the viscosity of the rubber coating liquid when the content of the rubber component is less than 50% by weight, the viscosity of the rubber coating liquid is 200 0? There exists a possibility that it may become less than and coating property may fall. On the other hand, in the rubber compound solids, when the content of the rubber component exceeds 70% by weight, the viscosity of the rubber coating liquid may exceed 90,000 0 ?.
  • Rubber component and carbon black are the main components of rubber compound solids.
  • the mixture of rubber component and carbon black may be referred to simply as the “main ingredient”.
  • the mixture (main ingredient) may comprise 50 to 78 parts by weight of the rubber component and 22 to 50 parts by weight of carbon black, based on 100 parts by weight of the total.
  • the viscosity of the rubber coating liquid is 200 0? It is lowered below, and the rubber coating liquid can flow down without being coated on the fiber base material.
  • the rubber compound solids are smooth in the solvent. It does not dissolve and can form lumps. This is due to excessive crosslinking of the rubber, resulting in lumps that do not dissolve in the solvent even if the content (concentration) of the rubber compound solids in the rubber coating liquid is reduced. As a result, the viscosity of the rubber coating liquid is 90, 000 0? It may be excessively increased in excess of, and the rubber coating liquid may not be smoothly coated on the fiber base, and the thickness of the rubber coating layer 240 may be uneven.
  • the mixture (main component) of the rubber component and the carbon black may include 60 to 78 parts by weight of the rubber component and 22 to 40 parts by weight of carbon black, based on 100 parts by weight of the total.
  • the mixture (main component) of the rubber component and the carbon black may include 70 to 75 parts by weight of the rubber component and 25 to 30 parts by weight of carbon black, based on 100 parts by weight of the total weight. have.
  • the solvent contains a substance capable of dissolving the rubber component.
  • the solvent may include at least one selected from toluene, naphtha, methanol, xylene, and tetrahydrofuran. Toluene, naphtha, methanol, xylene and tetrahydrofuran may be used alone or in combination.
  • the rubber coating layer 240 formed by the rubber coating liquid is made of natural rubber ⁇ , styrene butadiene rubber, ⁇ , butadiene rubber ⁇ ⁇ , chloroprene rubber (00 and isobutylene rubber (3 ⁇ 4 ⁇ , isoprene rubber (110, nitrile rubber (10 , At least one selected from butyl rubber and neoprene rubber. Also, rubber 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • Coating layer 240 includes carbon black.
  • the rubber coating layer 240 has a thickness t l 'of 10 to 100_.
  • the thickness U ′ of the rubber coating layer 240 is a distance from one surface of the rubber coating layer 240 contacting the textile substrate 210 ′, which is a fiber substrate, to the other surface of the rubber coating layer 240. Is measured.
  • the rubber coating layer 240 does not have sufficient adhesiveness and adhesive force, thereby deteriorating tire manufacturing characteristics, making it difficult to express the durability of the tire, and inferior tires. May occur.
  • the thickness of the rubber reinforcement 201 ′ may be increased to increase the thickness of the tire.
  • the thickness (tr) of the rubber coating layer 240 exceeds 100, bubbles may be generated in the rubber coating layer 240 during the volatilization of the solvent, which may make it difficult for the rubber reinforcing material 201 ′ to have a uniform thickness.
  • a rubber reinforcement 201 ' is applied to a tire, an air pocket may occur in the tire. If an air pocket occurs, the tire quality deteriorates and the defective rate increases.
  • the coating operation has to be performed several times to form the thick rubber coating layer 240, the process is inefficient, and the quality of the tire and the defective rate may be caused.
  • the rubber substrate is rolled on a fiber substrate, for example, the textile substrate 210 ', and a rubber layer is formed. Since the rubber substrate has a predetermined thickness, the rubber layer of the rubber reinforcement formed according to the method of the related art generally has a thickness of 1000 / i m or more, at least 800_ or more.
  • another rubber coating layer 240 of another embodiment of the present invention may have a thin thickness (tr) of 10/100 because it is formed by dipping or coating the rubber coating liquid.
  • tr thin thickness
  • the rubber coating layer 240 since the rubber coating layer 240 has a thin thickness tr of 100 rn or less, the overall thickness of the rubber reinforcement 201 'is thinned. Accordingly, the thickness of the tire using this rubber reinforcement 201 'can be made thin. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the rubber reinforcement 201 ′ may be applied to the carcass 70, the cap fly 90 or the belt 50 of the tire 101.
  • 3 is a schematic view of a twisted yarn
  • FIG. 6 is a schematic cross-sectional view of a rubber stiffener 301 'according to another embodiment of the present invention.
  • fiber yarns may be used as the fiber substrate of the rubber reinforcement 301 '.
  • the fiber yarn for example, untwisted yarn or one lower twist yarn 111 can be used.
  • a combined twisted yarn 110 composed of two or more lower twisted yarns 111 and 112 can be used as the fiber yarn (see FIG. 3).
  • the twisted yarn 110 is used as the fiber base material of the rubber reinforcement 3010.
  • the twisted yarn 110 is formed by two or more lower twisted yarns 111 and 112 as described above.
  • one embodiment of the present invention is not limited thereto, and other ply-twisted yarns known in the art may be used to prepare the rubber reinforcement 301 '.
  • 112 may be the same as or different from each other, for example, the first lower twist yarn 111 and the second lower twist yarn 112 may be selected from polyesters including nylon, rayon, aramid and m, respectively.
  • the twisted yarn 110 may be referred to as a code.
  • the rubber reinforcing material 301 ′ includes a twisted yarn 110 that is a fiber base and a rubber coating layer 240 on the twisted yarn 110. Since the rubber coating layer 240 has already been described, a detailed description thereof will be omitted to avoid duplication.
  • FIG. 7 is a schematic cross-sectional view of a rubber reinforcement 401 'in accordance with another embodiment of the present invention.
  • the rubber reinforcement 401 shown in FIG. 7 further includes an adhesive layer 250 on the fibrous substrate, compared to the rubber reinforcement 2010 shown in FIG. 5, wherein the rubber coating layer 240 is disposed on the adhesive layer 250. .
  • the rubber reinforcement 4010 shown in FIG. 7 is a textile substrate 210 'which is a fiber substrate, an adhesive layer 250 disposed on the textile substrate 210' and a rubber coating layer 240 disposed on the adhesive layer 250. ). 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the adhesive layer 250 includes resorcinol-formaldehyde-latex.
  • the adhesive layer 250 may be formed by an adhesive coating liquid comprising resorcinol-formaldehyde-latex (coarser and solvent.
  • the adhesive layer 250 may be And a resorcinol-formaldehyde-latex disposed on the epoxy compound layer and the epoxy compound layer. Resorcinol-formaldehyde-latex, also referred to as "13 ⁇ 4", serves as an adhesive component.
  • the synol-formaldehyde-latex improves the adhesion between the textile substrate 21 (7) and the rubber coating layer 240 by improving the affinity and adhesion between the textile substrate 2100 and the rubber component, in particular, The adhesion between the reinforcing material 201 'and the rubber is improved, so that the textile substrate 210' and the rubber coating layer 240 are stably attached to each other without being separated from each other, The occurrence of defects can be prevented.
  • the adhesive layer 250 may include an epoxy compound.
  • the adhesive layer 250 may include, for example, an epoxy compound layer and a resorcinol-formaldehyde-latex (coarse layer) disposed on the epoxy compound layer.
  • FIG. 8 is a schematic cross-sectional view of a rubber reinforcement according to another embodiment of the present invention.
  • the rubber reinforcement 501 ′ shown in FIG. 8 further includes an adhesive layer 250 on the fibrous substrate as compared to the rubber reinforcement 301 ′ shown in FIG. 6, and the rubber coating layer 240 is on the adhesive layer 250. Is placed on.
  • the rubber reinforcing material 501 ′ shown in FIG. 8 is a bonded fiber yarn 110 that is a fibrous substrate, an adhesive layer 250 disposed on the twisted yarn 110, and a rubber coating layer 240 disposed on the adhesive layer 250. ).
  • the manufacturing method of the rubber reinforcing materials 201 'and 3010 described above is a fiber base material 210' and 110.
  • Preparing a step, forming the adhesive layer 250 on the fiber substrate (210 ', 110) and applying a rubber coating liquid on the adhesive layer 250 and heat treatment to form a rubber coating layer 240 on the adhesive layer 250 It includes a step.
  • the fiber base (210 ⁇ 110) is one of the fiber yarns (!) And the textile base (210 '). 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the textile substrate 210 is formed by weaving fiber yarns 31.
  • As the fiber yarn yarn, lower twisted yarn or twisted yarn 110 can be used.
  • As the twisted yarn 110 a hybrid twisted yarn composed of two or more lower twisted yarns that are not identical to each other may be used. Ply-twisted yarn 110 may be used as a cord.
  • the hybrid braided twisted yarn may include nylon low twisted yarn and aramid low twisted yarn.
  • Nylon low twist yarns 300 to 2000 may have a fineness
  • the aramid lower yarn may have a fineness of 500 to 3000 ( no.
  • 300 to 2000 nylon filament may be used as the first lower twist yarn 111) to remove 500 to 3000 aramid filaments.
  • the lower twist yarn (112) using a cable corder a twister can be produced by combining the lower twist and the upper edge in the counterclockwise direction, and the upper edge in the clockwise direction using a twisting machine at the same time.
  • the twisted yarn 110 may have a twist number of 150 to 500 1 m 1 ⁇ 1.
  • the rubber coating solution is coated on the fiber substrates 210 and 110 and dried to form the rubber coating layer 240.
  • the rubber coating liquid contains a rubber compound solids and a solvent. Specifically, the rubber coating liquid contains 5 to 30% by weight of rubber compound solids and 70 to 95% by weight of solvent.
  • the concentration of the rubber compound solids in the rubber coating liquid is less than 5% by weight, the thickness (1: 1 ') of the rubber coating layer 240 becomes thin and adhesion and adhesion are not properly expressed. Accordingly, a problem of deterioration of manufacturing characteristics of the tire and tire failure during driving may occur.
  • the concentration of the rubber compound solid content in the rubber coating liquid exceeds 30% by weight, the viscosity of the adhesive liquid is lowered due to the increase in viscosity, the dispersibility of the rubber coating liquid is lowered, thereby reducing the coating property, coating thickness unevenness, etc. Problems arise.
  • the concentration of the rubber compound solids is adjusted in the range of 5 to 30% by weight.
  • the rubber coating liquid is 3 to 25% by weight of the rubber compound solids and 75 to 97 based on the gradation 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • It may comprise weight percent solvent.
  • the content of the rubber compound solids contained in the rubber coating solution may be 5 to 30% by weight.
  • the rubber coating liquid has a viscosity of 200 to 90, 000 acid 3 .
  • the viscosity of the rubber coating liquid is 200 0? If less than, due to the high flowability due to the low viscosity of the rubber coating liquid, it may be difficult to perform a coating operation for coating the rubber coating liquid on the fiber substrate, and the thickness of the rubber coating layer (240) becomes thin to express performance as a tire reinforcement material. Difficult to do
  • Rubber compound solids include the rubber component and carbon black.
  • Rubber compound solids include, for example, natural rubber 0®), styrene butadiene rubber (FYYO), butadiene rubber ⁇ , chloroprene rubber (00 and isobutylene rubber (IN, isoprene rubber (), nitrile rubber seedlings), butyl Carbon black and at least one rubber component selected from rubber and neoprene rubber.
  • the rubber compound solids may further include an additive.
  • Participants include, for example, para-oil, zinc oxide, stearic acid, antioxidants, sulfur, vulcanization accelerators, activators, pressure-sensitive adhesives, adhesives and the like.
  • the rubber compound local component may include 50 to 70 wt% of the rubber component, 15 to 40 wt% of carbon black and 5 to 15 wt% of the additive, based on the total weight of the rubber compound solids.
  • the viscosity of the rubber coating liquid when the content of the rubber component is less than 50% by weight, the viscosity of the rubber coating liquid is 200 0? There is a fear that the coating property is lowered and the coating property is lowered, and when the content of the rubber component exceeds 70% by weight, the viscosity of the rubber coating liquid may exceed 90, 000 0 ?.
  • Rubber component and carbon black are the main components of rubber compound solids. therefore, 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the mixture of the rubber component and the carbon black may simply be referred to as a "main component.”
  • the mixture of the rubber component and the carbon black (main component) is 50 to 78 parts by weight of the rubber component and 22 to 50 parts by weight of carbon based on 100 parts by weight of the total. May contain black.
  • the viscosity of the rubber coating liquid is 200 0. ? It lowers below, and the rubber coating liquid can flow down without being coated on the fiber base.
  • the content of the rubber component exceeds 78 parts by weight and the content of the carbon black is less than 22 parts by weight based on 100 parts by weight of the total weight of the rubber component and the carbon black mixture (main component), the rubber compound solids are smooth in the solvent. It does not dissolve and forms lumps, and the viscosity of rubber coating liquid is 90, 000 0? Due to excessive increase in excess, not only the rubber coating liquid is not smoothly coated on the fiber base, but also the thickness of the rubber coating layer 240 may be uneven. More specifically, the mixture (main component) of the rubber component and carbon black,
  • the mixture (main component) of the rubber component and the carbon black may include 70 to 75 parts by weight of the rubber component and 25 to 30 parts by weight of carbon black, based on 100 parts by weight of the total weight. have.
  • the solvent includes a substance capable of dissolving the rubber component.
  • the solvent may comprise at least one selected from toluene, naphtha, methanol, xylene and tetrahydrofuran. Toluene, naphtha, methanol, xylene and tetrahydrofuran may be used alone or in combination with each other.
  • the fiber substrate 210 ⁇ 110 may be immersed in the rubber coating liquid. By this immersion, a rubber coating liquid is applied onto the fiber bases 210 'and 110. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the rubber coating liquid may be applied onto the fiber bases 210 'and 110 by a comma coating using a comma coater.
  • the coating may be made at a temperature condition of 15 to 50 ° C. This temperature corresponds to the lowest temperature at which the solvent can be volatilized.
  • the coating of the rubber coating liquid may be performed by a gravure coating method, a micro gravure coating method, or the like.
  • the coated rubber coating liquid is dried.
  • Heat treatment may be performed for drying.
  • the step of forming the rubber coating layer 240 may include a step of applying a rubber coating solution on the fiber substrate (210 ', 110), and then heat treatment.
  • the heat treatment may be in a heat treatment apparatus.
  • heat may be applied for 30 to 150 seconds at a temperature of 70 to 150 ° C. Accordingly, the rubber coating layer 240 is formed on the fiber substrate 210 ', 110.
  • rubber reinforcements 201 'and 301' are manufactured, and the manufactured rubber reinforcements 201 'and 301' are wound on a winder.
  • the rubber coating layer 240 prepared as described above may have a thickness U ′ of 10 ⁇ 100.
  • the thickness U ′ of the rubber coating layer 240 is less than 10_, and the rubber coating layer 240 does not have sufficient adhesiveness and adhesive force, thereby deteriorating tire manufacturing characteristics and causing a defect in the tire.
  • the thickness t r of the rubber coating layer 240 exceeds 100_, the thickness of the rubber reinforcing material 201 ′ may be increased to increase the thickness of the tire.
  • a slitting step may be performed.
  • the plate-shaped rubber reinforcement 201 ' can be cut as needed or according to the purpose of use, which is called slitting (Sl i tt ing).
  • the slitting step may be omitted. There is no particular limitation on the method of cutting or slitting.
  • the rubber reinforcement 201 ', 301' manufactured in this way is, for example, 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • cap ply 90 the belt 50, the carcass 70, or the like of the tire 101.
  • the rubber reinforcing material 201 ′ according to the embodiment of the present invention has excellent adhesion to rubber and can be easily attached to rubber without a conventional rolling process.
  • the manufacturing process of the tire can be simplified because the rolling process can be omitted.
  • the adhesion of the carcass 70 is greatly increased, the air in the production of green tires This reduces the tire failure rate.
  • a thin and light tire 101 can be made because it does not go through a rolling process.
  • Such rubber reinforcements 201 ′, 301 ′ may also be applied to the belt 50 or the cap ply 90.
  • a method of manufacturing the rubber reinforcement materials 401 ′ and 501 ′ may include forming an adhesive layer 250 on the fiber base 210 ′ and 110 before forming the rubber coating layer 240. It may further comprise a step.
  • the rubber reinforcing material 401 ' according to another embodiment of the present invention
  • the adhesive layer 250 is formed on the fiber substrate 210 ', 110.
  • the adhesive layer 250 may be formed by an adhesive coating liquid comprising resorcinol-formaldehyde-latex (a tooth and a solvent. The forming of the adhesive layer 250 may be performed on the fibrous substrates 210 ′ and 110. And applying heat treatment to the adhesive coating solution.
  • the adhesive coating liquid may be applied onto the fiber substrates 210 'and 110 by immersing the fiber substrates 210' and 110 in the adhesive coating liquid (1 ⁇ 1 ⁇ ).
  • the dipping process may be performed by passing through the adhesive coating liquid 210 'and 110.
  • the dipping process may be performed in an immersion apparatus (1) ⁇ 11 for which tension, dipping time and temperature can be controlled. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the adhesive coating liquid may be applied onto the fiber substrates 210 'and 110 by coating using a blade or a coater or spraying using an injector.
  • the step of forming the adhesive layer 250 may be performed by applying an adhesive coating liquid on the fiber substrates 210 ′ and 110, drying for 80 to 120 seconds at 100 to 170 ° (:), and performing heat treatment at 200 to 250 ° [
  • the heat treatment may be carried out in a heat treatment apparatus Resorcinol-formaldehyde- by heat treatment
  • the adhesive layer 250 is completed by curing and fixing. By this heat treatment, the adhesive layer 250 may be more stably formed.
  • the adhesive layer 250 may include an epoxy compound.
  • the adhesive layer 250 may have, for example, a structure in which a resorcinol-formaldehyde-latex layer is disposed on the epoxy compound.
  • a rubber coating liquid is coated on the adhesive layer 250 and dried to form a rubber coating layer 240 on the adhesive layer 250.
  • Still other embodiments of the present invention provide a rubber reinforcement.
  • a rubber reinforcing material according to another embodiment of the present invention includes a fiber substrate and a rubber coating layer on the fiber substrate.
  • the rubber coating layer is disposed on the fibrous substrate.
  • the rubber coating layer is disposed on a textile substrate which is a fiber substrate.
  • the rubber coating layer is formed by a rubber coating liquid.
  • the rubber coating liquid may include a rubber compound solids and a solvent.
  • the rubber coating liquid is, based on the total weight of the rubber coating liquid, 5 to
  • the rubber compound solids contained in the rubber coating liquid constitute the rubber coating layer.
  • Tackiness and adhesion are not properly expressed. Accordingly, deterioration of manufacturing characteristics of the tire and a problem of tire failure during driving may occur.
  • the solvent contains a substance capable of dissolving the rubber component.
  • the solvent may comprise at least one selected from toluene, naphtha, methanol, xylene and tetrahydrofuran. Toluene, naphtha, methanol, xylene and tetrahydrofuran may be used alone or in combination.
  • the rubber coating layer formed by the rubber coating liquid is made of natural rubber (NR), styrene butadiene rubber ( ⁇ R), butadiene rubber (BR), chloroprene rubber (CR) and isobutylene rubber (IBR), isoprene rubber (IR), nitrile rubber (NBR), butyl rubber and neoprene rubber.
  • the rubber coating layer may include carbon black.
  • the rubber coating layer has a thickness of 5 to 200 im or 10 to 100.
  • the thickness of the rubber coating layer is measured by the distance from one surface of the rubber coating layer in contact with the textile substrate, which is a fiber substrate, to the other surface of the rubber coating layer.
  • the rubber coating layer When the thickness of the rubber coating layer is less than 5 m, the rubber coating layer may not have sufficient adhesiveness and adhesive strength, thereby deteriorating tire manufacturing characteristics, making it difficult to express the durability of the tire, and causing a defect in the tire.
  • the thickness of the rubber coating layer exceeds 200 _
  • the thickness of the rubber reinforcement may be increased to increase the thickness of the tire.
  • bubbles may be generated in the rubber coating layer during the volatilization of the solvent, so that it may be difficult for the rubber reinforcement to have a uniform thickness. (Ai r Pocket) may occur. If pockets occur, tire quality deteriorates and the defective rate increases.
  • the coating process has to be performed several times to form a thick rubber coating layer, which is inefficient in the process and deteriorates tire quality. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the rubber substrate is rolled on a fiber substrate, for example, a textile substrate, to form a rubber layer. Since the rubber base material has a predetermined thickness, the rubber layer of the rubber reinforcing material formed according to the method of the related art generally has a thickness of at least 1000; and at least 800_.
  • another rubber coating layer according to another embodiment of the present invention may have a thin thickness of 3 ⁇ 4 ⁇ to 200 /, or 10 to 100 / pe because it is formed by dipping or coating the rubber coating liquid.
  • the rubber coating layer since the rubber coating layer has a thin thickness of 200 m or less, the overall thickness of the rubber reinforcement is thinned. Thus, the thickness of the tire using such rubber reinforcement can be made thin.
  • the rubber reinforcement further includes an adhesive layer on the fibrous substrate, wherein the rubber coating layer may be disposed on the adhesive layer.
  • the adhesive layer comprises resorcinol-formaldehyde-latex.
  • the adhesive layer may be formed by an adhesive coating liquid containing resorcinol-formaldehyde-latex (coarser and solvent).
  • the adhesive layer may include an epoxy compound layer and a resorcinol-formaldehyde-latex (coarse layer) disposed on the epoxy compound layer.
  • Resorcinol-formaldehyde-latex acts as an adhesive component.
  • Resorcinol-formaldehyde-latex in particular, improves the affinity and adhesion between the textile substrate, which is a fibrous substrate, and the rubber component. It improves the adhesion between the textile base and the rubber coating layer, and improves the adhesion between the rubber reinforcement and the rubber, so that the textile base and the rubber coating layer can be stably attached to each other without being separated from each other and prevent the occurrence of defects in the tire manufacturing process. do.
  • the adhesive layer may comprise an epoxy compound.
  • the adhesive layer may include, for example, an epoxy compound layer and a resorcinol-formaldehyde-latex (1x1) layer disposed on the epoxy compound layer.
  • a method of manufacturing a rubber reinforcing material preparing a fiber base material, forming an adhesive layer on the fiber base material, and applying a rubber coating solution on the adhesive layer and performing heat treatment to form a rubber coating layer on the adhesive layer. Forming a step.
  • the rubber coating solution is coated on the fiber substrate thus formed and dried to form a rubber coating layer.
  • the rubber coating liquid contains a rubber compound solids and a solvent. Specifically, the rubber coating liquid contains 5 to 40% by weight of rubber compound solids and 60 to 95% by weight of solvent.
  • the concentration of the rubber compound solids in the rubber coating liquid is less than 5% by weight, the thickness of the rubber coating layer becomes thin and adhesion and adhesion are not properly expressed. Accordingly, a problem of deterioration of manufacturing characteristics of the tire and tire failure during driving may occur.
  • the concentration of the rubber compound solid content in the rubber coating liquid exceeds 40% by weight, the viscosity of the adhesive liquid is lowered due to the increase in viscosity, the dispersibility of the rubber coating liquid is lowered, thereby reducing the coating property, uneven coating thickness, etc. Problems arise.
  • the concentration of the rubber compound solids is adjusted in the range of 5 to 40% by weight.
  • the fibrous substrate may be dipped in the rubber coating liquid. By this immersion, a rubber coating liquid is applied onto the fiber base material.
  • the rubber coating liquid may be applied onto the fiber substrate by a comma coat ing using a comma coater.
  • the coating may be performed at a temperature of 15 to 50 C. This temperature corresponds to the lowest temperature at which the solvent can be volatilized.
  • the coating of the rubber coating liquid may be performed by a gravure coating method or a micro gravure coating method. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the coated rubber coating liquid After coating the rubber coating liquid, the coated rubber coating liquid is dried. Heat treatment may be performed for drying.
  • the step of forming the rubber coating layer may include a step of applying a rubber coating liquid on the fiber substrate, followed by heat treatment.
  • the heat treatment may be in a heat treatment apparatus.
  • heat may be applied for 30 to 150 seconds at a temperature of 70 to 150 ° (:).
  • a rubber coating layer is formed on the fiber substrate.
  • a rubber reinforcement is manufactured, and the manufactured rubber reinforcement is wound on a winder.
  • the rubber coating layer thus prepared is 5, to 200 // 111, or 10 / L to
  • the thickness of the rubber coating layer is less than 5 sun], and the rubber coating layer does not have sufficient adhesiveness and adhesive strength, thereby deteriorating tire manufacturing characteristics and causing a defect in the tire.
  • the thickness of the rubber coating layer exceeds 200, the thickness of the rubber reinforcement may be increased to increase the thickness of the tire.
  • the rubber reinforcement made of plate can be cut according to the needs or purpose of use. It is called.
  • the slitting step may be omitted. There is no particular limitation on the method of cutting or slitting.
  • the rubber reinforcement thus produced may be applied to, for example, a cap ply, belt or carcass of a tire.
  • Rubber reinforcing material according to an embodiment of the present invention has excellent adhesion to the rubber, it can be easily attached to the rubber without the conventional rolling process.
  • the manufacturing process of the tire can be simplified because the rolling process can be omitted.
  • the adhesiveness of the carcass is greatly increased, and the air pocket (show 013 ⁇ 40) is reduced in manufacturing green tires, which reduces the tire defective rate. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • Thinner and lighter tires can be made because they are not processed. Such rubber reinforcements may also be applied to belts or cap plies.
  • the method of manufacturing a rubber reinforcing material according to another embodiment of the present invention may further include forming an adhesive layer on the fiber substrate before forming the rubber coating layer.
  • the manufacturing method of the rubber reinforcing material preparing a fiber substrate, forming an adhesive layer on the fiber substrate and coating the rubber coating liquid on the adhesive layer and dried on the adhesive layer Forming a rubber coating layer.
  • the adhesive layer is formed on the fibrous substrate.
  • the adhesive layer may be formed by an adhesive coating liquid containing resorcinol-formaldehyde-latex (coarser and solvent). Forming the adhesive layer may include applying an adhesive coating solution on a fiber substrate and heat treatment.
  • the adhesive coating liquid can be applied onto the fiber substrate by dipping (1 11 ⁇ 2) the fiber substrate into the adhesive coating liquid.
  • the dipping process may be performed by passing the fibrous substrate through the adhesive coating liquid. In the dipping process, tension, dipping time and temperature can be controlled Can be done.
  • the adhesive coating liquid may be applied onto the fiber substrate by coating using a blade or coater or spraying using an injector.
  • the forming of the adhesive layer may further include applying an adhesive coating solution on the fiber substrate, drying for 80 to 120 seconds at 100 to 170 ° (:), and heat treating at 200 to 250 ° (:).
  • the heat treatment may be in a heat treatment apparatus.
  • the heat treatment cures and fixes the resorcinol-formaldehyde-latex (coarse layer) to complete the adhesive layer. By such heat treatment, the adhesive layer may be more stably formed.
  • the adhesive layer may comprise an epoxy compound.
  • the adhesive layer includes a resorcinol-formaldehyde-latex 03 ⁇ 4 layer disposed on an epoxy compound layer. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the fabric dough was woven using nylon filaments having a total fineness of 630de. At this time, weaving density was 55th / i-nch, weft density 46th / i nch so that the textile substrate 210 in the form of a fabric was prepared.
  • the adhesive layer 220 was completed by heat treatment.
  • the adhesive coating liquid contains 15% by weight of resorcinol-formaldehyde-latex (RFL) and 85% by weight of a solvent (water, 3 ⁇ 4). Also, the adhesive coating liquid is applied on the textile substrate 210.
  • RTL resorcinol-formaldehyde-latex
  • the rubber compound solution was prepared by dispersing the elastomeric composition at a concentration of 12% in a mixed solvent.
  • a rubber compound solution was applied onto the coating layer 230 formed on the textile substrate 210 and the solvent was volatilized at a temperature of 80 ° ( :) to form a rubber compound layer 230.
  • the thickness U of the rubber compound layer 230 was 10 —
  • a rubber reinforcing material 201 was produced.
  • the rubber reinforcement 201 thus prepared was cut to a width of 10 mm to prepare a rubber reinforcement for the cap ply 90. Cutter Knife was used for cutting.
  • Tires of the 205 / 55R16 specification were made with the cut rubber reinforcement.
  • body plies and steel cord belts containing 1300De / 2ply HMLS tire cords were used.
  • the body ply rubber is laminated on the inner liner rubber, the bead wire and the belt part are laminated, the prepared rubber reinforcement is added, and the rubber layers for forming the tread part, the shoulder part and the sidewall part are sequentially formed.
  • Green tires were prepared. The green tire thus prepared was put in a vulcanization mold and vulcanized at 170 ° C. for 15 minutes to prepare a tire.
  • the rubber compound layer 230 In the formation of the rubber compound layer 230, dispersing the elastomeric composition in a mixed solvent at a concentration of 17% to prepare a rubber compound liquid, and the thickness (1: 1) of the rubber compound layer 230 is 18 ! Except that, a tire was manufactured in the same manner as in Example 1.
  • the tire was manufactured in the same manner as in Example 1, except that the composition was dispersed at a concentration of 25% to prepare a rubber compound liquid, and the thickness 1) of the rubber compound layer 230 was 23_. ⁇ Example 4>
  • a tire was manufactured in the same manner as in Example 1, except that the step of forming the rubber compound layer 230 was omitted.
  • a tire was manufactured in the same manner as in Example 1 except that the rubber compound solution was prepared by dispersing the elastomeric composition in a mixed solvent at a concentration of 45%.
  • the thickness of the rubber compound layer 230 prepared in Example 1-4 and Comparative Examples 1-3 was measured using the ao of 1: 111: 0 03 ⁇ 4. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the unvulcanized rubber (thickness 1.31ä) used for the carcass was cut into 100111 X 20011 (width X length) and a table film of 2011 X 15011 (width X length) was attached to the top of the cut uncured rubber.
  • the rubber reinforcing materials prepared in Examples 1-4 and Comparative Examples 1-3 were laminated on the non-vulcanized rubber having M films attached thereto.
  • An adhesive layer composite was prepared by pressing a rubber reinforcement three times and compressing the rubber reinforcing material using an unloaded rubber.
  • the pressure-sensitive adhesive layer composite thus prepared was cut into lengths of 2 to 2.401 ⁇ , and then pressed three times using a 5 urinary ⁇ metal cylindrical weight to squeeze the unvulcanized rubber.
  • the Scotch tape 01) was attached twice to the exposed surfaces of the rubber reinforcing materials prepared in Examples 1-4 and Comparative Examples 1-3 to prevent stretching, followed by 1 love 011 ⁇ ⁇ ⁇ &, 0 ⁇ . 2712-041)
  • the adhesion of the rubber reinforcing materials prepared in Examples 1-4 and Comparative Examples 1-3 was measured. This was applied.
  • the adhesive peel strength of the rubber reinforcement prepared in Examples 1-4 and Comparative Examples 1-3 on the carcass layer of the tire was measured. Specifically, 1.
  • the sample was prepared by evaporating in order, and then vulcanized at 160 ° (: for 20 minutes at a pressure of 6013 ⁇ 4 ⁇ : 01 2 .
  • the vulcanized sample was cut to prepare a specimen having a width of 1 inch.
  • prepared specimens were subjected to a peel test at a rate of 11/1 11 at 25 ° (: 125) using a universal testing machine (1e Bei011 Co., Ltd.) to Examples 1-4 and
  • the adhesive force of the rubber reinforcing material prepared in Comparative Example 1-3 was measured. At this time, the average value of the load generated at the time of peeling was calculated by the adhesive force.
  • the weights were measured and averaged.
  • Tire manufacturing defect rate (%) [(good tire number) / (20, tire evaluation number]] x 100
  • Examples 1 to 4 according to the present invention compared with Comparative Example 1 according to the conventional method, the thickness of the rubber compound layer 230 was reduced by 95% or more, and the rubber compound layer 230 In spite of the decrease in the thickness, it can be seen that it has an equivalent level of adhesion and adhesion. In addition, it can be seen that the weight of the tire according to Examples 1 to 4 is 0.3913 ⁇ 4 to 0.43 ⁇ 4 lighter than the tire according to Comparative Example 1.
  • Example! Rubber reinforcement according to to 4 has an excellent adhesive force compared to the rubber reinforcement of Comparative Example 2 has significantly reduced the failure rate during tire manufacturing.
  • the rubber compound layer is not formed and thus has low adhesive force.
  • the rubber compound layer 230 is made of a rubber compound liquid containing a high concentration of the elastomeric composition, the thickness of the rubber compound layer 230 is non-uniform as 180 to 230_, but tire production Air pocket ⁇ nyoya) is reduced, it can be seen that the tire manufacturing defective rate is reduced compared to Comparative Example 2.
  • a textile substrate 210 ' was prepared by weaving a 1000 mM filament with a total fineness of 16 and weaving it with a cable corder at a density of 32 at the top and bottom edge of 47 (up to 13 ⁇ 4).
  • the textile substrate 210 'thus prepared was immersed in a conventional epoxy compound and a resorcinol-formaldehyde-latex compound, dried and heat treated to form an adhesive layer on the textile substrate 210'.
  • a rubber coating solution for forming a rubber coating layer 240 was prepared according to the composition of Table 2.
  • Rubber compound solids include rubber components, carbon black and additives.
  • As the rubber component natural rubber (NR) and styrene butadiene rubber (SBR) were used.
  • Table 2 discloses the weight ratios of natural rubber ( ⁇ ), styrene butadiene rubber (XR) and carbon black.
  • the weight ratio of the components in Table 2 represents the relative weights to 100 parts by weight of the mixture (main component) of the rubber component and carbon black.
  • the rubber compound solids comprise 94% by weight of the main component (a mixture of the rubber component and carbon black) and 6% by weight of the additive. Since the contents of the additives are all the same in Examples 5-9, the contents of the additives are not disclosed in Table 2.
  • para-oil, zinc oxide, stearic acid, antioxidants, sulfur and vulcanization accelerators were used as additives.
  • 5% by weight of paraoil, 0.3% by weight of zinc oxide, 0.2% by weight of stearic acid, 0.2% by weight of anti-aging agent (RUBBER ANTIOXIDANTS, BHT), 0.2% by weight of sulfur and vulcanization accelerator (vulcani zat ion accelerators) ZnBX) 0.1 wt% was used.
  • a rubber compound composition of 15% by weight based on the total weight of the rubber coating solution was used.
  • Solvents include toluene and tetrahydrofuran. Toluene and tetrahydrofuran were mixed and used in a weight ratio of 20:80. 85% by weight of solvent was used based on the total weight of the rubber coating liquid.
  • a rubber coating liquid was prepared by dispersing and dissolving the rubber compound solids in the solvent prepared as described above in the weight ratio of Table 2. Rubber compound in Table 2 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • Solids and solvent content are expressed in weight percent (%).
  • a rubber coating liquid was applied to the textile substrate 210 'and dried at a temperature of 80 ° (:) to volatilize the solvent to form a rubber coating layer 240.
  • a rubber reinforcing material according to Example 5-9 was produced.
  • the rubber compound solid content was smoothly dispersed in the mixed solvent and whether or not undispersed lumps were present was visually evaluated and determined as follows.
  • the viscosity of the rubber coating liquid was measured using a Brookfield DV2TLV viscometer (Tk: 0.09373) at standard conditions (temperature 20 ° C, 65% relative humidity). A total of six viscosities were measured in 30 seconds at 3 minutes under STP. Range of measurable viscosity with the device (viscosity range) (is 15-6000000, spindle used for evaluation is the VL-01, VL-02, VL-03, VL-04. 2019/245337 1 »(: 1 ⁇ 1 ⁇ 2019/007540
  • the coating property was evaluated when the rubber coating liquid was coated on a textile substrate (nylon plain woven fabric).
  • a textile substrate nylon plain woven fabric
  • Hot Melt Coater HLC-1 from Chem Instrument si was used. After applying a temperature of 80 ° C to Rol l of the device, the coating property was evaluated while coating the rubber coating liquid on the textile substrate.
  • the thickness of the rubber coating layer 240 formed on the rubber reinforcement prepared in Example 5-9 was measured using Vernier Cal ipers of Mi tutoyott.
  • Tires of the 205 / 55x6 standard were manufactured using the rubber reinforcing materials of Examples 6, 7, and 9, and these were referred to as Examples 10, 11 and 12, respectively.
  • the durability of the tire manufactured in Example 10-12 was evaluated using the drum type running durability test machine.
  • the high-speed running durability was evaluated while increasing the speed to 20 to 30 ⁇ 8!
  • the durability was expressed as the time until the tire bursts (explosion or puncture) after the tire started running in the driving endurance tester.
  • the tire of 12 has the same level of durability as that of the tire of Comparative Example 4 manufactured through a rolling process using a conventional tire cord in the related field.
  • the tire of Example 10-12 is 0.3 to 0.413 ⁇ 4 lighter than the tire of Comparative Example 4.
  • the tires of Examples 10-12 manufactured according to the present invention are light in weight and have the same durability as those of ordinary tires in related fields.
  • textile base material 220 adhesive layer
  • Rubber compound layer 301 Rubber reinforcement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Tires In General (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un matériau renforcé par du caoutchouc qui comprend un substrat fibreux, une couche adhésive disposée sur le substrat fibreux, et une couche de composé de caoutchouc disposée sur la couche adhésive, et qui contient du résorcinol-formaldéhyde-latex (RFL), la couche de composé de caoutchouc étant formée d'un mélange de caoutchouc liquide, le composé de caoutchouc liquide comprenant de 10 à 40 % en poids d'une composition de polymère élastique et de 60 à 90 % en poids d'un solvant par rapport au poids total du composé de caoutchouc liquide, et la couche de composé de caoutchouc ayant une épaisseur de 5 µm à 200 µm. Un autre mode de réalisation de la présente invention concerne un matériau renforcé par du caoutchouc comprenant un substrat fibreux et une couche de revêtement en caoutchouc sur le substrat fibreux, la couche de revêtement en caoutchouc étant formée d'un revêtement en caoutchouc liquide, le revêtement de caoutchouc liquide comprenant de 5 à 30 % en poids de matières solides de mélange de caoutchouc et de 70 à 95 % en poids d'un solvant par rapport au poids total du revêtement de caoutchouc liquide.
PCT/KR2019/007540 2018-06-21 2019-06-21 Matériau renforcé par du caoutchouc, son procédé de production, et pneu le comprenant WO2019245337A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2018-0071516 2018-06-21
KR1020180071516A KR102402636B1 (ko) 2018-06-21 2018-06-21 경량화된 고무 보강재, 그 제조방법 및 이를 포함하는 타이어
KR10-2018-0115877 2018-09-28
KR1020180115877A KR102427757B1 (ko) 2018-09-28 2018-09-28 고무 보강재, 그 제조방법 및 이를 포함하는 타이어

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330961A (ja) * 1994-06-07 1995-12-19 Ube Ind Ltd タイヤコードコーティングゴム組成物
JP2002539337A (ja) * 1999-03-11 2002-11-19 ミリケン・アンド・カンパニー 編織布とゴムコンパウンドの間の接着を促進させるためのビニル化合物プラズマ前処理
KR20130043654A (ko) * 2010-06-15 2013-04-30 밀리켄 앤드 캄파니 점착성 마무리제 및 이로써 처리된 텍스타일 물질과 제품
KR101428602B1 (ko) * 2006-03-03 2014-09-11 인드스펙 케미칼 코포레이션 레조르시놀 수지-블록킹된 이소시아네이트 및 그의 응용
JP5909226B2 (ja) * 2011-04-15 2016-04-26 株式会社ブリヂストン 粘接着剤組成物及びそれを用いた接着方法、並びに積層体及びタイヤ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330961A (ja) * 1994-06-07 1995-12-19 Ube Ind Ltd タイヤコードコーティングゴム組成物
JP2002539337A (ja) * 1999-03-11 2002-11-19 ミリケン・アンド・カンパニー 編織布とゴムコンパウンドの間の接着を促進させるためのビニル化合物プラズマ前処理
KR101428602B1 (ko) * 2006-03-03 2014-09-11 인드스펙 케미칼 코포레이션 레조르시놀 수지-블록킹된 이소시아네이트 및 그의 응용
KR20130043654A (ko) * 2010-06-15 2013-04-30 밀리켄 앤드 캄파니 점착성 마무리제 및 이로써 처리된 텍스타일 물질과 제품
JP5909226B2 (ja) * 2011-04-15 2016-04-26 株式会社ブリヂストン 粘接着剤組成物及びそれを用いた接着方法、並びに積層体及びタイヤ

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