EP3794268A1 - Auskleidungsschlauch zur sanierung fluidführender systeme - Google Patents
Auskleidungsschlauch zur sanierung fluidführender systemeInfo
- Publication number
- EP3794268A1 EP3794268A1 EP19724190.4A EP19724190A EP3794268A1 EP 3794268 A1 EP3794268 A1 EP 3794268A1 EP 19724190 A EP19724190 A EP 19724190A EP 3794268 A1 EP3794268 A1 EP 3794268A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nanoparticles
- resin
- lining
- fiber
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- 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
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- 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
- B32B7/06—Interconnection of layers permitting easy separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
- F16L55/1654—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section and being inflated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1656—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section materials for flexible liners
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- 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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
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- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
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- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
- B32B2260/023—Two or more layers
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- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2264/102—Oxide or hydroxide
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2264/10—Inorganic particles
- B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
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- B32B2264/107—Ceramic
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B32B2597/00—Tubular articles, e.g. hoses, pipes
Definitions
- the invention relates to a lining hose for renovation
- Lining hoses for remediation fluid-carrying systems are known per se and described in the literature.
- liners based on thermoplastic materials with fiber reinforcement have proven useful for this purpose. These are flexible lining hoses to be rehabilitated in the
- Spiral wound film strip wherein serving as a protective film inner film tube is formed. At least one resin-impregnated sliver is wound on the thus-obtained inner film tube and in turn a second foil strip, which forms an outer film tube.
- Curable polymers with nanoparticulate fillers have been described in the literature for various applications.
- EP A 1 634 921 and EP A 1 786 866 are polymeric
- compositions in addition to an unsaturated polyester and another copolymer with respect to the polyester reactive groups still Contain nanoparticles as fillers.
- Composites, coatings, potting compounds, adhesives and dental materials having improved mechanical properties, in particular improved impact resistance, can be obtained from these compositions.
- Carbon nanotubes dispersed in a solvent are applied to a fibrous surface, then the solvent is evaporated and finally the coated surface thus obtained is coated with a polymer to obtain a fiber-reinforced composite with embedded carbon nanotubes ,
- WO 2005/028174 relates to the preparation of polymer composites
- Epoxy resin base containing functionalized carbon nanotubes Epoxy resin base containing functionalized carbon nanotubes.
- Carbon nanotubes in an amount of 0.5 to 40% by weight.
- lining hoses which contain a resin-receiving material having a substantially impermeable coating.
- the lining hoses may contain fillers.
- the present invention was based on the object
- Another aspect of the invention relates to a method for producing the lining hoses according to the invention and the use of the lining hoses according to the invention for the rehabilitation of water and sewage piping systems.
- fluid-carrying systems in the context of the present invention, all systems are to be understood in which fluids, that is liquids or gases can be transported. There are no special ones
- the invention accordingly is a lining tube for remediation fluid-carrying systems, containing at least one
- Resin-impregnated fiber hose and possibly a reinforced or
- the layer which is in contact with the flowing medium after installation can be the inner film (if this remains after installation in the fluid-carrying system to be renovated) or the innermost layer of the lining hose or a nonwoven layer which is on the flowing medium facing side of the resin-impregnated fiber tube is arranged act. This nonwoven layer can be wholly or partially connected to the resin-impregnated fiber tube.
- nanoparticles is to be understood as meaning all particles of particles or fibrous particles whose size in at least one spatial direction is in the range from 1 to 400 nm, preferably is in the range of 10 to 300 nm.
- their average diameter is preferably in the range from 1 to 300 nm, preferably in the range from 5 to 150 nm and in particular in the range from 10 to 100 nm.
- the present invention relates to spherical or spherical nanoparticles, refers to the average diameter D50 on the basis of the intensity-weighted particle size distribution as obtained by the so-called Contin-data inversion algorithm.
- D50 divides the intensity-weighted particle size distribution into two equal fractions, the first of which contains particles below D50 and the second particles above D50.
- D50 is generally determined by dynamic light scattering according to ISO
- Dispersion medium should be determined as accurately as possible or known from the literature. After a temperature calibration, the position of the measuring cell is adjusted to achieve an optimum scatter signal. Details of the measurement can be found in the mentioned ISO standard.
- Spherical or spherical particles have one more or less
- Spatial directions is characterized by the so-called aspect ratio, which describes the largest ratio of the dimension of a particle in two different spatial directions. Accordingly, the aspect ratio of ideal spherical particles is 1, while in the case of fibrous or platelet-shaped particles it is usually considerably greater than 1 and often reaches values of 100 or more. For platelet or fibrous
- Nanoparticles therefore refers to the specification of the size to the maximum size in at least one spatial direction.
- suitable nanoparticles are all types of inorganic or organic products which can be prepared in appropriate particle sizes and in some cases are also commercially available. Methods for producing such nanoparticles are known to those skilled in the art and described in the literature.
- Spherical or spherical fillers are, for example, metal oxides, metal carbonates, metal sulfates or the like. Oxides of Ba, Al, Si, Zr, Ce and Ti and mixed oxides of these metals are preferred. As carbonates or sulfates may be mentioned here preferably the carbonates or sulfates of the alkali and alkaline earth metals.
- Platelet-shaped fillers are e.g. in great variety in Plastics Additive Handbook (Hanser Verlag, 5th edition) in chapter 17.4.2 on pages 926 to 930, which will be referred to here for further details.
- Needle-shaped or acicular particles are also in great variety in the
- Preferred acicular additives for use in the curing resins have an aspect ratio in the range of 2 to 100, preferably 2-20.
- Wollastonite, xonotlite, sepiolite, attapulgite and Palygorskit can as
- Fibrous fillers can have even higher aspect ratios than
- fibrous nanoparticles having acicular fillers. Preference is given to fibrous nanoparticles having an aspect ratio in the range from 2 to 400, preferably from 5 to 200.
- a preferred group of fibrous nanoparticles are carbon-based particles, which are also known as carbon nanotubes.
- Glass fibers are glass fibers or fibers based on Al, Ti, Mg, Al-silicate, Si or boron carbide fibers. Glass fibers are preferred here.
- the nanoparticulate fillers are the layer that after installation of the nanoparticulate fillers
- Lining tube is in contact with the flowing medium, in an amount of 0.001 to 0.09, preferably from 0.003 to 0.08 and particularly preferably from 0.005 to 0.05% by weight, based on the weight of the layer containing the nanoparticles , added.
- the addition of the nanoparticles is carried out in a conventional manner, so that further information is unnecessary here.
- the above-mentioned particle size of the nanoparticles refers to the time of incorporation into the resin used for impregnation. Agglomeration may result in a different, generally larger particle size value in the finished lining tube.
- reaction resins for impregnation of the slivers preferably unsaturated polyester resins (UP resins) or vinyl ester resins (VE resins) are used, which may be dissolved, for example, in styrene and / or an acrylic ester.
- UP resins unsaturated polyester resins
- VE resins vinyl ester resins
- Suitable reaction resins are known to the person skilled in the art and commercially available in various designs.
- Also suitable for producing the resin-impregnated fiber hoses are epoxy resins.
- Esterified dicarboxylic acids with diols whereby low molecular weight products are obtained, which in the curing, usually with vinyl compounds (especially styrene) as comonomers to high molecular weight
- Three-dimensional networks are polymerized.
- Adipic acid, glutaric acid, phthalic acid, isophthalic acid and terephthalic acid and their reactive derivatives can be used.
- Preferred unsaturated acids are maleic acid or its anhydride, fumaric acid and Diels-Alder adducts of maleic anhydride and cyclopentadiene.
- the diols used are preferably ethylene glycol, propanediol, dipropanediol, diethylene glycol, 2,2-dimethyl-1,2-propanediol, 1,4-butanediol, 2,2,4-trimethyl-1,3-pentanediol or bisphenol A.
- the comonomers required for crosslinking the UP resins may simultaneously be solvents for the low molecular weight oligomers; Styrene, which is used in many UP resins, can be mentioned as an example.
- suitable comonomers are methylstyrene, vinyltoluene or
- Bifunctional monomers such as diallyl phthalate or divinylbenzene can be used.
- Vinylesterharze also called VE resins
- Impregnation of the fiber ribbons of suitable resins are obtained by preparing in a first stage an epoxide oligomer which is terminal
- Vinyl ester groups such as acrylate or methacrylate groups and thus having reactive double bonds.
- the crosslinking usually styrene as a solution and
- Crosslinking agent is used.
- the crosslink density of VE resins is generally lower than that of UP resins because there are less reactive double bonds.
- the skeleton of the oligomer preferably has aromatic glycidyl ethers of phenols or epoxidized novolacs. Terminally, these are preferably esterified with (meth) acrylic acid.
- epoxy resins preferred are those which can be cured by photochemically initiated cationic polymerization. In principle, however, any epoxy resins are usable, even those which can be thermally cured, if necessary with initiators.
- the photochemical cationic curing is based on the principle that salts of certain photosensitive compounds are able to initiate cationic polymerizations photochemically.
- Monomers range from vinyl to ring-opening polymerizing
- polymerizable monomer are also photoinitiated cationically polymerized using suitable initiators.
- the use of photochemical initiation allows continuous in situ generation of the active species upon irradiation, resulting in rapid and homogeneous cure at the desired time.
- the active initiating species in cationic polymerization is a cation, usually a proton or a strongly electrophilic carbocation. Suitable cations are, for example, Lewis or Bronsted acids.
- Diarylchloronium salts diarylbromonium salts, triarylsulfonium salts, dialkylphenylacylsulfonium salts, phosphonium salts, N-alkoxypyridinium salts, pyridinium salts, pyrillium salts and thiapyrillium salts.
- N-alkoxypyridinium pyrylium thiapyrilium The anions of these photocatalytic initiator compounds should have the lowest possible nucleophilicity in order to avoid impairment of the curing process.
- diarylhalonium salts are also commercially available.
- the diaryliodonium salts are preferred, since these are easier to prepare than the corresponding chloronium or bromonium salts and, moreover, are thermally generally much more stable than these.
- Suitable aryliodonium salts are e.g. described in WO 96/13538, to here for further
- photoinitiators are aryldiazonium and
- Arylsulfoniumsalze as described for example in EP 770 608, which is hereby incorporated by reference.
- the initiators mentioned above usually have
- Wavelength range is not sufficient, however, to produce the cations required for cationic curing.
- Suitable sensitizers are known in the art and described in the literature. Basically, the sensitizers are also suitable for the cationic curing of dental application masses
- Preferred sensitizers are alpha-dicarbonyl compounds (WO
- Epoxy resins which are photochemically initiated cationically curable are e.g. obtainable from epoxide compounds having on average more than one epoxide group per molecule, if appropriate with the concomitant use of hydroxyl-containing further monomers. Furthermore, as preferred
- Epoxy compounds are called those in the molecule next to the
- Epoxide still contain hydroxyl groups.
- Suitable epoxides are, for example, cyclohexene oxide-containing compounds such as z-B. Epoxycyclohexanecarboxylates, as described in detail in US Pat. No. 3,117,099, to which reference is hereby made for details.
- glycidyl ether derivatives such as are obtainable, for example, by reaction of phenol derivatives having a plurality of hydroxyl groups with epichlorohydrin.
- phenol derivatives having a plurality of hydroxyl groups include in particular the diglycidyl ethers of 2,2-dimethyl-2,2-di- (4-hydroxyphenyl) propane (bisphenol A) or 2,2-di (4-hydroxyphenyl) propane (bisphenol F).
- aliphatic epoxy compounds are suitable, e.g. epoxidized fatty acid derivatives.
- Vinylcyclohexene dioxide 3,4-epoxy-6-methylcyclohexylmethyl-3,4-epoxy-6-methylcyclohexene carboxylate, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexene carboxylate, bis (3,4-epoxy-6-methylcyclohexylmethyl) adipate , Bis (3,4-epoxy-4-methylcyclohexanecarboxylic acid) hexyl diester, 1,3-bis (3,4-epoxycyclohexylethyl) tetramethyldisiloxane and bis (2,3-epoxycyclopentyl) ether.
- the epoxide ring is opened by the active cation and thereby started a continuous polymerization with chain growth.
- Corresponding products are in a variety of different
- Fiber systems are described in large numbers in the literature and known to those skilled in the art.
- reaction resins used to impregnate the fiber ribbons can be thermally (usually by peroxide catalysts) or by radiation, e.g. by UV light with photoinitiators as described for example in EP-A 23623, cured. Also so-called
- Combination curing with a peroxide initiator used for the thermal curing in combination with photoinitiators are possible and have proven to be particularly advantageous for large wall thicknesses of lining hoses.
- a method for such a combination curing is described for example in EP-A 1262708.
- the resin can be suitably thickened, as described for example in WO-A 2006/061129. This increases the viscosity of the resin and thus improves the handleability and windability of the related fiber ribbons.
- Knitted fabrics are generally understood to mean fabrics which are formed by stitching.
- Fiber scrims are a processing variant of fibers in which the
- Fibers are not interwoven, but aligned parallel to each other in a chemical carrier substance (the matrix) are embedded and are usually fixed by cover sheets from above and below and optionally by means of a step path or an adhesive. Due to the parallel orientation of the fibers, fiber fabrics have a pronounced anisotropy of the strengths orientation direction and perpendicular thereto, which for some
- a nonwoven consists of loosely connected fibers, which are not yet connected to each other.
- the strength of a fleece is based only on the fiber's own liability, but can be influenced by work-up. In order to be able to process and use the fleece, it is usually solidified, for which various methods can be used.
- Nonwovens are different from fabrics, or knitted fabrics, which are characterized by the manufacturing process specific laying of the individual fibers or threads.
- Nonwovens consist of fibers whose position can only be described by the methods of statistics. The fibers are confused with each other in the nonwoven fabric. Accordingly, the English term nonwoven (non-woven) clearly distinguishes it from woven fabric.
- Nonwovens are among other things after the fiber material (eg., The polymer at
- the fibers can be deposited defined in a preferred direction or be completely stochastically oriented as the random nonwoven fabric.
- the fibers have no preferred direction in orientation (orientation), it is called an isotropic nonwoven. Are the fibers in one? Direction arranged more frequently than in the other direction, then one speaks of anisotropy.
- felts within the meaning of the invention are also to be understood as felts.
- a felt is a fabric of a disordered, difficult to separate fiber material. In principle, felts are thus nonwoven textiles. From synthetic fibers and vegetable fibers, felts are generally produced by dry needling (so-called needle felting) or by solidification with water jets emerging from a nozzle beam under high pressure. The individual fibers in the felt are intertwined with each other.
- Needle felt is usually mechanically with numerous needles with
- the barbs are arranged inversely as in a harpoon. This will force the fibers into the felt and the needle will come out easily. Repeated grooving entangles the fibers with each other and subsequently retreats them chemically or with steam.
- Felt can be - like nonwovens - from virtually all natural or
- Felts have a good temperature resistance and are usually moisture-repellent, which is particularly when used in
- fluid-carrying systems can be beneficial.
- Fiberglass fabric or fiberglass fabric used.
- the nanoparticles are in this embodiment
- the amount of nanoparticles in this case is preferably 0.01 to 0.09% by weight, based on the weight of the nonwoven layer.
- the lining hoses according to the invention in the radial direction at least two different resin-impregnated fiber ribbons wound one above the other.
- At least two different fiber ribbons in at least one of the parameters fiber incorporation, fiber orientation, fiber length or fiber type.
- fiber incorporation means the way in which the fibers are introduced into a carrier material.
- the fiber ribbons used are selected so that the
- Lining hose on the one hand has optimized for the particular application property profile and on the other hand, the simplest possible manufacturability on existing devices for producing such lining hoses is possible.
- the property profile can be individually adapted to the particular application, without the need for elaborate remodeling of the devices used for the preparation.
- the radial and longitudinal profile of the lining hoses according to the invention can be designed individually and optimally adapted to the specific application.
- the length of the fibers used is not subject to any particular limitation, i. Both so-called long fibers and short fibers or fiber fragments can be used. Over the length of the fibers used, the properties of the corresponding fiber ribbons can be adjusted and controlled over a wide range.
- the type of fibers used is not subject to any restriction.
- glass fibers, carbon fibers or plastic fibers such as aramid fibers or fibers of thermoplastic materials such as
- Called polyesters or polyamides or polyolefins eg polypropylene
- glass fibers are generally preferred; However, if a particular heat resistance is of importance, for example, aramid fibers or carbon fibers can be used which can offer advantages over glass fibers in terms of strength at higher temperatures.
- Resin-impregnated sliver is selected from woven, knitted, laid, mats, felt or non-woven fabrics, the length of the fibers
- the first resin-impregnated sliver is a scrim made of parallel-oriented continuous fibers, preferably parallel-aligned, continuous glass fibers.
- the continuous fibers are aligned substantially perpendicular to the longitudinal direction of the resin-impregnated sliver.
- a second sliver can be combined in which fibers are arranged undirected in a random fiber mat. The first sliver gives the lining hose a very good strength in the longitudinal direction, which is advantageous when installed in the piping systems to be rehabilitated.
- the second sliver of non-oriented fibers in the form of a random fiber mat stabilizes the inner surface due to the high resin absorption and avoids pores on the inner surface, which could lead to damage on prolonged contact with aggressive media.
- the use of the directional fiber scrim reduces the risk of the fiber mat being pulled apart during impregnation, resulting in uneven impregnation. Static requirements for the liner also make this embodiment preferable.
- the fiber fabric already needled or sewn with a random fiber mat, ie the first and the subsequent thereafter wound fiber slivers can also be constructed multi-layered.
- at least one of the following fiber slivers wound on a first sliver is constructed in a multi-layered manner in such a way that between two slices with undirected slits Fibers are an intermediate layer containing arranged parallel to the longitudinal direction of the sliver cut fibers, which preferably have a length in the range of 2 to 60, preferably from 3 to 30 cm.
- Fiber tube which by winding at least one sliver with fibers oriented substantially perpendicular to the longitudinal direction of the sliver and at least one further sliver with parallel to
- polyolefin fibers preferably of polyolefin fibers, more preferably a polypropylene nonwoven used as at least a first resin-impregnated sliver, which with any other sliver of the above
- a felt of the type described above is used as one of the slivers, which in turn may be combined with at least one further sliver of the type described above.
- fiber slivers with similar fiber binding ie, for example, two fiber scrims or two fiber scrims
- fibers of different chemical composition, different orientation or with different lengths can be used which contain fibers of different chemical composition, different orientation or with different lengths.
- short fibers in a sliver may be combined with long fibers in at least one other sliver wound thereon or fabrics may be combined with nonwovens, mats or knits.
- two fiber scrims or two fiber scrims can be used which contain fibers of different chemical composition, different orientation or with different lengths.
- short fibers in a sliver may be combined with long fibers in at least one other sliver wound thereon or fabrics may be combined with nonwovens, mats or knits.
- two fiberslivers with similar fiber binding ie, for example, two fiber scrims or two fiber scrims
- Fiber fabrics with fibers of the same type of incorporation and the same orientation and length but different chemical composition are possible. This opens up a wide range of variation for the person skilled in the art within which he can virtually "tailor" the properties of the lining tube for the individual application. Based on the desired property profile, the person skilled in the art selects the suitable fiber ribbons for the lining hoses according to the invention with the aid of his specialist knowledge of the properties of the various types of fiber ribbons and is thus able to optimally fit to them
- the width of the slivers is not subject to any special per se
- Lining hoses is also subject to no particular
- the lining hoses according to the invention have a possibly reinforced inner film tube on the basis of a thermoplastic material, which are removed after installation of the lining hose or in to be rehabilitated
- This inner film tube if not removed after installation, contains 0.01 to 0.09% by weight, based on the total weight of the inner film tube, of nanoparticles as described above. It is also possible that both the inner film tube and other components of the lining tube contain nanoparticles.
- all polymers which can be processed into films or film tubes of the thickness or thickness required for the particular application are suitable as thermoplastic materials for the inner film tube.
- curing is photochemical, it should be noted that the products have sufficient transmittance for the wavelength or wavelength range of the radiation used for curing. If the inner film tube after curing in the system to be rehabilitated should remain, is also to ensure the sufficient stability against the transported fluids as well as against the resin of the fiber tubes. In the majority of cases, however, the inner film tube is removed after curing. Basically, taking into account these criteria, polyolefins such as polyethylene or polypropylene, polyamides, polyesters such as
- thermoplastic elastomers are also suitable in principle.
- Thermoplastic elastomers are materials in which elastic polymer chains are incorporated in thermoplastic material. Despite the lack of vulcanization required of the classic elastomers, thermoplastic elastomers have rubbery elasticity
- polyolefin elastomers or polyamide elastomers may be mentioned here.
- Corresponding products are described in the literature and commercially available from various manufacturers, so that here detailed information is unnecessary.
- thermoplastics are particularly suitable and preferred thermoplastics.
- polyolefins and / or polyamides wherein film tubes based on composite films of polyolefins and polyamides have proven to be advantageous in certain applications, since they have a better barrier effect than pure polyethylene films compared to the usually used as a solvent for the resins used styrene.
- the leakage of this solvent / monomer on the inside of the lining tube before curing can be better prevented.
- Foil tube on a reinforcement This is chosen so that on the one hand optimized for the particular application
- the inner film tube on a fiber-based reinforcement, in particular based on slivers as described above, or a nonwoven on.
- the thickness of the reinforcement is advantageously in the
- the fiber-based reinforcement is a glass fiber fabric or a
- Fibers for reinforcement are Fibers for reinforcement.
- Foil tube on a fleece lamination Foil tube on a fleece lamination.
- the reinforcement is physically bonded to the film which forms the basis for the inner film tube.
- An example of this is the lamination of the reinforcement on the film, which leads to a partial melting of the film.
- Corresponding methods for lamination are known to the person skilled in the art and described in the literature, so that detailed explanations are unnecessary here.
- the flat film from which the inner film tube is formed in the preferred embodiment has a thickness in the range of 40 to 800 pm, preferably in the range of 50 to 500 pm, and more preferably from 80 to 200 pm.
- Inner film tube is formed as well as for the film strip) for the light used for irradiation are sufficiently permeable to the
- Curing does not affect or prevent. In the case of thermal curing, this is not important.
- lining hoses according to the invention at least one outer film tube on the basis of a thermoplastic material.
- Liner hoses according to the invention are known and described in the literature. As an example, let us mention the ones already mentioned
- Embodiment represent.
- the at least one outer film tube should have a
- thermoplastics As a material for the at least one outer film tube b) in principle, all thermoplastics, possibly taking into account the above-mentioned individual requirements in each case into consideration.
- the person skilled in the art will select the suitable thermoplastic according to the specified requirement profile. The same applies to the thickness and the possible use of reinforcing materials for the outer film tube on which the expert will decide on the basis of the individual case.
- the lining tube according to the invention is preferably obtained by the winding of slivers on or around the inner
- Foil tube using a winding mandrel or other suitable device Foil tube using a winding mandrel or other suitable device.
- the lining tube is obtained by the winding of slivers by means of a device as described in WO 95/04646.
- Lining hoses overlap at their edges in this embodiment, e.g. around 5 to 300 mm.
- the finished lining tube which is generally 1 to 1000 m,
- Line rehabilitation introduced into the line system to be rehabilitated and there For example, with pressurized water or preferably inflated with air, so that it fits tightly against the inner wall of the pipeline system to be rehabilitated
- the resin is thermally or preferably by means of hot water by means of UV light, as e.g. in EP-A 122 246 and EP-A 198 17 413, hardened.
- the lining hoses according to the invention are suitable for the remediation of fluid-carrying systems of any kind and allow a fast
- the lining hoses according to the invention can be used for the refurbishment of such systems which are difficult to access for a classic repair or refurbishment involving the replacement of parts, for example because they are components of an overall device or because they are inaccessible, e.g. because they are buried in the ground.
- Examples include piping systems for the transport of water or wastewater, which are laid in cities and communities in the ground and often under roads or other traffic routes. In the renovation by replacement, these pipes must be replaced by appropriate
- the nanoparticles in the reaction resins used for impregnation lead to an improvement in the surface structure of the side of the reaction resins used for impregnation
- Lining hose which is after removal of the possibly existing inner film tube in contact with the flowing medium, whereby the friction and thus the abrasive effect of the flowing medium can be reduced. If the inner film tube is not removed, the nanoparticles therein enhance the structure of the surface in contact with the flowing medium and reduce abrasion by the flowing medium. In this case it is not mandatory required that the resin used to impregnate the resin impregnated fiber tube also contain nanoparticles. The desired reduction in abrasion is already achieved by the equipment by the equipment of the inner film tube with nanoparticles.
- reaction resin to improve the mechanical properties such as modulus of elasticity or strength.
- the use of nanoparticles in the impregnating resin has the further advantage that the resins thus obtained usually have a very good permeability for the radiation used for curing, since the particle size of the nanoparticles is less than the wavelength of the radiation. This facilitates uniform and complete curing of the lining hoses according to the invention in comparison with resins containing larger particles.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018111361.7A DE102018111361A1 (de) | 2018-05-14 | 2018-05-14 | Auskleidungsschlauch für die Sanierung fluidführender Systeme |
| PCT/EP2019/062222 WO2019219617A1 (de) | 2018-05-14 | 2019-05-13 | Auskleidungsschlauch zur sanierung fluidführender systeme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3794268A1 true EP3794268A1 (de) | 2021-03-24 |
Family
ID=66542270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19724190.4A Pending EP3794268A1 (de) | 2018-05-14 | 2019-05-13 | Auskleidungsschlauch zur sanierung fluidführender systeme |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3794268A1 (de) |
| DE (1) | DE102018111361A1 (de) |
| WO (1) | WO2019219617A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021134231B4 (de) * | 2021-12-22 | 2025-06-18 | Impreg Gmbh | Einlegeschlauch zum Auskleiden von Rohrleitungen oder Kanälen |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL128404C (de) | 1959-12-24 | |||
| DE2930863A1 (de) | 1979-07-30 | 1981-04-16 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur laststromerfassung in einem gleichstrom-umkehrsteller und schaltungsanordnung zur durchfuehrung des verfahrens |
| SE435866B (sv) | 1983-04-06 | 1984-10-22 | Vj System Ab | Forfarande och anordning for infodring av rorledningar, med en flexibel, herdbar plast innehallande slang |
| US5798013A (en) | 1993-08-06 | 1998-08-25 | Brandenburger Patentverwertungsgesellschaft Des Burgerlichen Rechts | Method and apparatus for producing a tubular lining hose |
| DE69520222T2 (de) | 1994-10-31 | 2001-08-23 | Minnesota Mining And Mfg. Co., Saint Paul | Mit sichtbarem licht härtbares epoxysystem mit verbesserter härtungstiefe |
| EP0770608B1 (de) | 1995-10-23 | 2003-08-13 | Basf Aktiengesellschaft | Strahlungshärtung von Dihydrofuranderivaten |
| DE19817413C2 (de) | 1998-04-18 | 2002-09-19 | Uv Reline Tec Gmbh & Co | Verfahren und Vorrichtung zum Sanieren von Rohrleitungen |
| DE19924251A1 (de) | 1999-05-27 | 2000-11-30 | Joachim Brandenburger | Auskleidungsschlauch mit auf Folienschlauch aufkaschierter Vliesschicht |
| US6245827B1 (en) | 1999-10-12 | 2001-06-12 | Elementis Specialties, Inc. | Ultraviolet curable resin compositions having enhanced shadow cure properties |
| DE19961347A1 (de) | 1999-12-17 | 2001-06-21 | S & C Polymer Silicon & Compos | Photoinitiatorsystem mit Acylphosphinoxid-Initiatoren |
| DE10122565B4 (de) | 2001-05-10 | 2010-01-14 | Allmann, Ludwig | Verfahren zum Sanieren von Rohrleitungen |
| CA2532190C (en) | 2003-06-16 | 2012-08-21 | William Marsh Rice University | Sidewall functionalization of carbon nanotubes with hydroxyl-terminated moieties |
| US8187703B2 (en) | 2003-06-16 | 2012-05-29 | William Marsh Rice University | Fiber-reinforced polymer composites containing functionalized carbon nanotubes |
| DE10334856B4 (de) | 2003-07-29 | 2007-06-06 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verbundformteil und Verfahren zu seiner Herstellung |
| US20050194718A1 (en) * | 2004-02-17 | 2005-09-08 | Blades David J. | Pipe liners and method of lining pipes |
| EP1634921A1 (de) | 2004-09-10 | 2006-03-15 | hanse chemie GmbH | Polymere Harzzusammensetzung |
| DE102004059883A1 (de) | 2004-12-10 | 2006-06-14 | Brandenburger Patentverwertung Gbr (Vertretungsberechtigte Gesellschafter Herr Joachim Brandenburger | Herstellung eines harzgetränkten Faserschlauches zur Innenauskleidung von Kanälen und Rohrleitungen |
| JP2008238658A (ja) * | 2007-03-28 | 2008-10-09 | Shonan Plastic Mfg Co Ltd | 管路更生材料と管路更生工法 |
| DE102014118689A1 (de) | 2014-12-15 | 2016-06-16 | Sml Verwaltungs Gmbh | Auskleidungsschlauch zur Sanierung fluidführender Systeme |
-
2018
- 2018-05-14 DE DE102018111361.7A patent/DE102018111361A1/de active Pending
-
2019
- 2019-05-13 WO PCT/EP2019/062222 patent/WO2019219617A1/de not_active Ceased
- 2019-05-13 EP EP19724190.4A patent/EP3794268A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019219617A1 (de) | 2019-11-21 |
| DE102018111361A1 (de) | 2019-11-14 |
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