EP3737544A1 - Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendung - Google Patents
Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendungInfo
- Publication number
- EP3737544A1 EP3737544A1 EP18819125.8A EP18819125A EP3737544A1 EP 3737544 A1 EP3737544 A1 EP 3737544A1 EP 18819125 A EP18819125 A EP 18819125A EP 3737544 A1 EP3737544 A1 EP 3737544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- surface layer
- seam
- layer
- sealing material
- polyurethane foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1261—Avoiding impregnation of a preformed part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
- B29C44/141—Hiding joints in the lining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
- B29C44/351—Means for preventing foam to leak out from the foaming device during foaming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
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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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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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
-
- 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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- 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
- B32B5/022—Non-woven fabric
-
- 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
-
- 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
- B32B5/18—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 features of a layer of foamed material
-
- 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
- B32B5/18—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 features of a layer of foamed material
- B32B5/20—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 features of a layer of foamed material foamed in situ
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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
- B32B5/22—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
- B32B5/245—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 being a foam 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
- B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/75—Arm-rests
- B60N2/79—Adaptations for additional use of the arm-rests
- B60N2/793—Adaptations for additional use of the arm-rests for use as storage compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0237—Side or rear panels
- B60R13/0243—Doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0256—Dashboard liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
-
- 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
- B32B2250/03—3 layers
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- 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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
-
- 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
- B32B2607/00—Walls, panels
Definitions
- the invention relates to a method for sealing seams of a seams
- Interior trim components for motor vehicles are usually made of plastics and often have a multi-layered structure of a support member and a surface layer. These are usually injection-molded plastic components, in which as a surface layer decorative layers, decorative films, molded skins, fabric,
- seams Textile, leather or artificial leather are used (hereinafter referred to as surface layer).
- surface layer Textile, leather or artificial leather are used (hereinafter referred to as surface layer).
- surface layers with functional seams or ornamental seams are frequently used (hereinafter referred to as seams).
- thermoplastic polymers or polyurethane films at the joints are pierced to give a realistic as possible impression of a real Nähensteines, they must be sealed before the foam under the seam usually so that no foam material can penetrate through the seams on the visible side of the surface layer , This can be done, for example, by the application of so-called sealing tapes, wherein either cold adhesive tapes of, for example, acrylate adhesive or sweatbands of, for example, heat-activatable copolyester adhesives or other adhesive tapes can be used.
- the surface layer which may, for example, be present as a molded skin, may have to be heavily forfeited, so that the adhesive tape can be applied in a flat local development.
- the surface layer of both the decorative side (hereinafter referred to as A-side) and from the inside (hereinafter also referred to as B-side) must be achieved with a pressure roller or roller or a support roller.
- Damage sensitive decorative surfaces also requires a considerable effort in terms of care in both the manual and automated application of said tape seal.
- EP 3141369 A1 describes a method for sealing a seam of a molded skin by means of plastisol, wherein the plastisol is applied to the seam and is melted or cured at 160 to 180 ° C.
- a disadvantage of this method is that due to the high temperature application both the thread of the seam and under
- the base material of the surface layer can be affected, so that gloss or color properties can be adversely affected or aging of said materials can be disadvantageously accelerated.
- the plastisol described is still not used in all materials used in the automotive industry
- Decorative sheet materials usable as e.g. the liability is insufficient on some materials.
- the application of the plastisol usually in powder form, even in the application application, for example, in steep areas of the contour of a geometry geometry only with great effort or also under
- the object of the present invention is therefore to avoid the abovementioned disadvantages in the sealing of seams and to provide a method with which a reliable sealing of the seams of a surface layer is achieved, so that in a process step following the method of the invention, the back-foaming of the
- Nadeleinstichlöcher the seam exits and can not be absorbed by the sewing thread / decorative thread such that in a wicking the foam material can be transported to the A side of the surface layer.
- liquid adhesive is used to fix the surface layer instead of foam material on a supporting workpiece.
- it is also the penetration of the adhesive through the Nadeleinstichlöcher and the
- the threads of the seam should not be damaged or adversely affected in aging or color properties.
- the invention relates to a method for sealing a seam (4) of a seam (4) having surface layer (2) with two sides (2 a and 2 b), the part of a
- Composite part (1) which has at least the surface layer (2) and one on one of the sides (2a or 2b) of the surface layer (2) applied flat
- Polyurethane foam layer or adhesive layer (3) comprising the following method steps: i) spraying or casting a sealing material (5) onto a flat surface
- sealing material is a liquid Polyurethane-based reactive mixture.
- the reactive mixture contains no blowing agent, so that the sealing material is present as a compact mass of material.
- the process according to the invention preferably comprises the following process steps: i) spraying or pouring the polyurethane-based liquid reactive mixture as a sealing material (5), which has a temperature of 20 ° to 90 ° C, preferably 40 ° to 70 ° C, on a surface application area on the side of the surface layer (2), to which the foam layer or adhesive layer (3) adjoins, wherein the edge of the flat
- the inventive method is preferably carried out contactless.
- a further subject of the invention is a composite part (1) consisting of a) a seam (4) b) a surface layer (2) having this seam (4) with two sides (2a and 2b) c) one on one of the sides (2a or 2b) of the surface layer (2) flat
- the sealing material (3) is a
- polystyrene resin consisting of polyisocyanates based on diphenylmethane diisocyanate and / or polyphenylpolymethylene polyisocyanate and modified organic polyisocyanates based on diphenylmethane diisocyanate, b) at least one polyol having a number average molecular weight of from 300 to 15,000 g / mol, preferably from 320 to 13,000 g / mol, selected from the group consisting of polyether polyols, polyester polyols, polycarbonate diols and polyether carbonate polyols,
- polyisocyanate are preferably organic and / or modified organic
- Polyols used are preferably polyol ether polyols having a functionality of 2 to 6.
- chain extenders and / or crosslinkers which may optionally be used, the well-known chain extenders and / or crosslinkers may be used. These are, for example, diethanolamine, triethanolamine,
- the catalysts known from polyurethane chemistry can be used. These are described, for example, in Adam, N., Avar, G., Blankenheim, H., Friederichs, W., Giersig, M., Weigand, E., Halfmann, M., Wittbecker, F.-W., Larimer, D.R., Maier, U., Meyer-Ahrens, 5., Noble, K.-L and Wussow, H.-G. 2005. Polyurethanes. Ullmann's Encyclopedia of Industrial Chemistry, p. 555.
- auxiliaries and additives are described in Adam, N., Avar, G., Blankenheim, H., Friederichs, W., Giersig, M., Weigand, E., Halfmann, M., Wittbecker, F.-W , Larimer, D.R., Maier, U., Meyer-Ahrens, S., Noble, K.-L. and Wussow, H.-G. Of 2005.
- polyurethane foam layer (8) polyurethane foams are used as described for example in EP-A 2628756 are used.
- the surface layer (2) to be sealed preferably consists of one
- thermoplastic or thermosetting plastic can also be made of artificial leather, treated or untreated leather or textile woven or non-woven materials. Preference is given as plastic polyvinyl chloride (PVC),
- thermoplastic olefin (TPO) and polyurethane used. These plastics can be produced for example by processes such as powder sintering (Slushhauttechnik).
- the surface layer may preferably also consist of thermoplastic film material, which is brought into the desired geometry by an upstream deep-drawing process, or of polyurethane film materials.
- the surface layer (2) may be grained, structured or smooth on the side opposite the foam layer (8).
- the thread of the suture may e.g. Made of natural materials such as wool, cotton or synthetic materials such as plastic.
- the film is first positioned contour-bound in a device or flat on a supporting surface, so that they in the desired position of the contour without any
- This device serves for the repeatable positioning of the surface layer as well as the contour support of the generally flexible film material.
- the device can also be used for follow-up processes.
- the seam introduced into the surface layer by a needle-stitch sewing method has a product-specific or variant-specific profile which can be segmented over contours and steep regions even with interruptions.
- the liquid polyurethane reactive mixture is first sprayed or cast by means of a discharge nozzle, specifically onto a flat application area, the application area enclosing the course of the seam. Since it is a reactive mixture, the material passes under pending delivery pressure a mixing head of the at least 2 components of the reactive mixture as ideally as possible mixed together to form a homogeneous distribution of the components.
- the individual components of the reactive mixture are fed from a metering system in individual lines to the mixing head.
- the reactive mixture reacts quickly and at low temperatures to the desired sealing material. This has the advantage that the thread of the seam as well as the
- Base material of the surface layer is not affected at the low temperatures and that after only a short curing time of the sealing material, the foam for forming the foam layer or the adhesive can then be applied.
- Sealing material achieved.
- the viscosity of the sealing material as well as the short reaction time prevent the pressure-free penetration of the pinholes and the wicking of the suture.
- the viscosity and the adhesion properties of the reactive mixture are adjusted so that a contactless spraying or casting method can be used in which any existing steep areas of the contour can be wetted with the reactive mixture.
- the contactless application process avoids any mechanical stress on the surface layer by the sealing process.
- the control of the discharge nozzle also allows interruptions in the seam in the
- the seal produced is flexible even in a fully functional state
- the composite parts (1) may e.g. for the manufacture of interior trim components for motor vehicles, such as instrument panels, armrests,
- Figures 1, 2 and 3 show a composite part (1) of a surface layer (2) with two sides ((2a) and (2b)) with seams ((4) and (4 ')) and a foam layer (8) in cross section :
- FIG. 1 shows a surface layer 2 in cross section with a decorative seam.
- This decorative seam is a seam that is supposed to convey the impression of two surface layers that are sewn together, but that does not physically contain any separation.
- the surface layer 2 has two decorative seams 4, each with a puncture 5. Between the two, substantially parallel to each other decorative stitching 4 extends a notch 7 on a visible side 2a, which should give the impression that at this point, for example, two surface layers are sewn together (based on the leather processing).
- FIG. 2 shows a modification of FIG. 1.
- the application in the case of an actual joint 7a of the surface layer 2 is shown in cross-section.
- FIG. 3 shows a further modification of FIGS. 1 and 2.
- the application is shown in the case of a single seam path 4 without a second seam 4 'running parallel and without a notch 7
- Polyol A polyalkylene oxide based on glycerol as initiator and propylene oxide with 18% terminal ethylene oxide block; OH number 35 mg KOH / g polyol
- Polyol B polyalkylene oxide based on propylene glycol as initiator and propylene oxide with 29% terminal ethylene oxide block; OH number 28 mg KOH / g polyol
- Chain extender A diethylene glycol
- Chain extender B 1,4 butanediol
- Catalyst B FOMREZ UL-28 ® from Momentive Performance Materials
- the preparation was carried out in a heatable mold with a mold temperature of 25 ° C.
- the temperature of the polyol component (components b) to e)) was 70 ° C and the
- Polyurethane foam layer on the side of the molded skin on which the cured sealing material is made For this purpose, the shape of the skin to the sealed seam in a heated mold at 42 ° C, a polyurethane reactive mixture was applied consisting of the polyol component Bayfill ® 53IF40 of Covestro Germany AG and the isocyanate Desmodur ® 58IF07 of Covestro Germany AG via a high pressure mixing head and the mold tightly locked. After 90 seconds at 42 ° C, the mold was opened and the composite element removed. The tightness of the seam was visually checked.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Ceramic Engineering (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
- Molding Of Porous Articles (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18151020.7A EP3511144A1 (de) | 2018-01-10 | 2018-01-10 | Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendung |
| PCT/EP2018/085451 WO2019137755A1 (de) | 2018-01-10 | 2018-12-18 | Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3737544A1 true EP3737544A1 (de) | 2020-11-18 |
Family
ID=60954894
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18151020.7A Withdrawn EP3511144A1 (de) | 2018-01-10 | 2018-01-10 | Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendung |
| EP18819125.8A Withdrawn EP3737544A1 (de) | 2018-01-10 | 2018-12-18 | Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18151020.7A Withdrawn EP3511144A1 (de) | 2018-01-10 | 2018-01-10 | Verfahren zum abdichten einer naht, ein verbundteil und dessen verwendung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210069944A1 (de) |
| EP (2) | EP3511144A1 (de) |
| JP (1) | JP2021511224A (de) |
| CN (1) | CN111565905A (de) |
| WO (1) | WO2019137755A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018201754A1 (de) * | 2018-02-05 | 2019-08-08 | Adient Engineering and IP GmbH | Keder für einen Sitzbezug |
| CN111179756B (zh) * | 2020-01-03 | 2022-07-26 | 京东方科技集团股份有限公司 | 复合型泡棉、柔性oled显示面板及显示装置 |
| DE102021102556A1 (de) * | 2021-02-04 | 2022-08-04 | Kiekert Aktiengesellschaft | Verfahren und vorrichtung zum montieren einer kraftfahrzeugkomponente |
| CN113212321A (zh) * | 2021-05-07 | 2021-08-06 | 广州三木汽车部件有限公司 | 一种新型仿拼缝装饰用皮革及其加工工艺 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2882959B1 (fr) * | 2005-03-14 | 2007-05-11 | Faurecia Interieur Ind Snc | Procede de fabrication d'articles et articles d'habillage a peau de cuir |
| ITMI20062136A1 (it) * | 2006-11-08 | 2008-05-09 | Tecnos Spa | Metodo e apparecchiatura per la giunzione di elementi di rivestimento per pannello e-o pezzi stampati |
| FR2952598B1 (fr) * | 2009-11-13 | 2012-12-14 | Faurecia Interieur Ind | Procede de fabrication d'un element d'habillage de vehicule automobile et element d'habillage associe |
| DE102010034598A1 (de) | 2010-08-12 | 2012-02-16 | Faurecia Innenraum Systeme Gmbh | Dichtband und Innenverkleidungsteil |
| ES2530361T3 (es) | 2012-02-15 | 2015-03-02 | Bayer Ip Gmbh | Espumas semirrígidas basadas en poliuretano, su uso y su aplicación |
| US9278500B2 (en) * | 2014-05-06 | 2016-03-08 | Faurecia Interior Systems, Inc. | Vehicle interior panels with sealed stitching |
| ES2667197T3 (es) | 2015-09-11 | 2018-05-10 | Smp Deutschland Gmbh | Procedimiento para el sellado de una costura |
-
2018
- 2018-01-10 EP EP18151020.7A patent/EP3511144A1/de not_active Withdrawn
- 2018-12-18 CN CN201880085269.0A patent/CN111565905A/zh active Pending
- 2018-12-18 US US16/958,863 patent/US20210069944A1/en not_active Abandoned
- 2018-12-18 JP JP2020536796A patent/JP2021511224A/ja active Pending
- 2018-12-18 EP EP18819125.8A patent/EP3737544A1/de not_active Withdrawn
- 2018-12-18 WO PCT/EP2018/085451 patent/WO2019137755A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP3511144A1 (de) | 2019-07-17 |
| JP2021511224A (ja) | 2021-05-06 |
| CN111565905A (zh) | 2020-08-21 |
| US20210069944A1 (en) | 2021-03-11 |
| WO2019137755A1 (de) | 2019-07-18 |
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