FLEXIBLE TUBE HAVING HIGH TEMPERATURE RESISTANCE

A flexible pipe of multilayer structure with unbonded layers, where the pipe has an interior lining which comprises the following layers: 1. Flexible A flexible pipe having a multilayer structure with unbonded layers , where the pipe comprises an interior lining comprising layers (a) and (b): a polyarylene ether ketone,', 'polyphenyl sulfone,', 'polyphenylene sulfide,', 'a blend of a polyarylene ether ketone and polyphenylene sulfide, and', 'semiaromatic polyamide, where from 5 to 100 mol % of a dicarboxylic acid content thereof derives from an aromatic dicarboxylic acid having from 8 to 22 carbon atoms, and which has a crystallite melting point Tm of at least 260° C., determined according to ISO 11357 in the 2nd heating procedure;, 'a) at least one layer comprising a molding composition, wherein the molding composition comprises a polymer selected from the group consisting ofb) at least one layer comprising a fluoropolymer molding composition.2. The flexible pipe of claim 1 , wherein the interior lining is a two-layer lining.3. The flexible pipe of claim 1 , wherein the interior lining is a three-layer lining having a layer sequence a/b/a.4. The flexible pipe of claim 1 , wherein the interior lining is a tube.5. The flexible pipe of claim 1 , further comprising claim 1 , alongside the interior lining claim 1 , one or more layers selected from the group consisting ofan internal carcass,one or more external reinforcing layers, andan exterior sheath.6. The flexible pipe of claim 1 , wherein the crystalline melting point Tm is at least 270° C.7. The flexible pipe of claim 1 , wherein the crystalline melting point Tm is at least 280° C.8. The flexible pipe of claim 3 , wherein an exterior layer (a) comprises polyphenylene sulfide.9. The flexible pipe of claim 3 , wherein an interior layer (a) comprises the polyarylene ether ketone claim 3 , polyphenylene sulfide claim 3 , or a blend of the polyarylene ether ketone and polyphenylene sulfide.10. The flexible pipe of claim ...

Coolant line

A coolant line includes an outer layer including a polyamide molding composition and an inner layer including polypropylene and at least 0.02% by weight of a heat stabilizer. The coolant line has a high thermal aging resistance and bursting strength.

TEMPERATURE-CONTROLLABLE PIPE

A flexible pipe of multilayer structure which comprises the following layers, from the inside to the outside: an interior lining; an inner reinforcement layer; a layer of molded electrically conductive plastic; an outer reinforcement layer; and an exterior sheath. The electrically conductive plastic layer is in electrical contact with the two reinforcement layers, and the two reinforcement layers can be connected to a source of electrical current. It is thus possible to achieve efficient heating of the pipe, and it can therefore be used for conveying oil in cold regions.

Welding Method by Means of Electromagnetic Radiation

Two shaped articles A and B which are not directly weldable to one another can be welded to one another with the aid of a film C if the material of the first surface of this film is compatible with the material of the shaped article A and the material of the second surface of this film is compatible with the material of the shaped article B and if either the film C or a surface region in contact therewith absorbs electromagnetic radiation. The welding is carried out by brining the first surface of the film C into contact with the shaped article A and the second surface of the film C into contact with the shaped article B and inputting electromagnetic radiation.

Temperature-controllable pipe

A flexible pipe of multilayer structure which comprises the following layers, from the inside to the outside: an interior lining; an inner reinforcement layer; a layer of molded electrically conductive plastic; an outer reinforcement layer; and an exterior sheath. The electrically conductive plastic layer is in electrical contact with the two reinforcement layers, and the two reinforcement layers can be connected to a source of electrical current. It is thus possible to achieve efficient heating of the pipe, and it can therefore be used for conveying oil in cold regions.

Coolant line

A coolant line which comprises the following layers: I. an outer layer comprising a polyamide molding composition and II. an inner layer comprising polypropylene and at least 0.02% by weight of a heat stabilizer, has a high thermal aging resistance and bursting strength.

Process for producing a metal-plastic hybrid component

The invention provides a process for producing a hybrid component comprising metal and plastic. The process comprises the steps of a) pretreating the metal surface by applying at least one conversion layer, b) applying at least one layer of an adhesion promoter composition and c) bonding the metal to the plastic. The adhesion promoter composition comprises at least one copolyamide-based hotmelt adhesive.

Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.

Flexible pipe having a multi-layered structure

The invention relates to a flexible pipe having a multi-layered structure comprising unbonded layers, comprising an inner lining having the following layer arrangement: a) an innermost layer made of a fluoropolymer molding compound, b) an intermediate layer made of a molding compound on the basis of an olefinic polymer, which is selected from the group consisting of polyethylene, isotactic polypropylene, syndiotactic polypropylene and syndiotactic polystyrene, c) an outer layer made of a polyamide molding compound, wherein the layer made of a polyamide molding compound is particularly efficiently protected against hydrolysis. The pipe is thus particularly suited for offshore applications in oil or gas production.

TEMPERATURE-CONTROLLABLE PIPE SUITABLE FOR OFFSHORE APPLICATIONS

A flexible pipe which can be heated efficiently, and may therefore be used for conveying oil in cold regions, is provided. The pipe comprises in order from inside to outside: an interior lining; a wound tape; and at least one reinforcement layer. The wound tape contains a first exterior layer of a plastics molding composition that is not electrically conductive; an intermediate layer of an electrically conductive plastics molding composition; and a second exterior layer of a plastics molding composition that is not electrically conductive. A volume resistivity to IEC 60093 of the intermediate layer is in the range from 103 to 1010 m, and the intermediate layer comprises at least two metallic conductors embedded into the plastic molding composition along an entire length of the tape in such a way that, the two conductors do not touch one another.

Air brake line

A pipe includes an outer layer composed of a molding composition which includes at least 40% by weight of a polyamide whose monomer units contain an average of at least 8 carbon atoms, and a layer composed of a polypropylene molding composition. An outer diameter of the pipe is in a range from 6 to 20 mm, a wall thickness of the pipe is in a range from 1.0 to 2.0 mm, and a thickness of the polypropylene layer is from 25 to 75% of the wall thickness. The pipe can be used as an air-brake line that can be produced at low cost, has high bursting strength, and has good low-temperature impact resistance.

METHOD FOR DECORATING SURFACES

The surface of a shaped article produced in a first step, for example by means of rapid prototyping, is subsequently decorated by a method for the production of a surface-decorated shaped article in which a) a shaped article is provided, and b) at least a portion of the surface of the shaped article is welded to a decorating film with incidence of electromagnetic radiation.

Metal-plastic hybrid component

The invention relates to a polymer composition, and to a semifinished plastics product, the surface of which has been formed at least to some extent from the polymer composition. The invention further relates to a production process associated therewith for the semifinished plastics product. A feature of the polymer composition is that it comprises from 50 to 99.7% by weight of a polymer and from 0.3 to 20% by weight of one or more adhesion-promoting additives. The invention further relates to plastics-metal hybrid components and production of these.

TRANSPARENT PART

A transparent component, which comprises the following subcomponents: I. an outer layer composed of a polyamide moulding composition, which comprises the following constituents: a) from 50 to 100 parts by weight of polyamide, which can be prepared from the following monomers: ) from 70 to 100 mol % of diamine, selected from m-xylylenediamine, p-xylylenediamine and mixtures thereof, ) from 0 to 30 mol % of other diamines having from 6 to 14 carbon atoms, where the mol % data here are based on the entirety of diamine, and also ) from 70 to 100 mol % of aliphatic dicarboxylic acids having from 10 to 18 carbon atoms and ) from 0 to 30 mol % of other dicarboxylic acids having from 6 to 9 carbon atoms, where the mol % data here are based on the entirety of dicarboxylic acid; b) from 0 to 50 parts by weight of another polyamide, where the parts by weight of a) and b) give a total of 100, II. a substrate composed of a moulding composition based on a substantially amorphous polymer, where a) the ...

Temperature-controllable pipe suitable for offshore applications

A flexible pipe which can be heated efficiently, and may therefore be used for conveying oil in cold regions, is provided. The pipe comprises in order from inside to outside: an interior lining; a wound tape; and at least one reinforcement layer. The wound tape contains a first exterior layer of a plastics molding composition that is not electrically conductive; an intermediate layer of an electrically conductive plastics molding composition; and a second exterior layer of a plastics molding composition that is not electrically conductive. A volume resistivity to IEC 60093 of the intermediate layer is in the range from 103 to 1010 m, and the intermediate layer comprises at least two metallic conductors embedded into the plastic molding composition along an entire length of the tape in such a way that, the two conductors do not touch one another.

FLEXIBLE PIPE HAVING A DIFFUSION BARRIER

In a flexible pipe of multilayer structure with unbonded layers, where the pipe has an interior lining which comprises the following layers: 1. A flexible pipe comprising a multilayer structure comprising an unbonded layer , wherein an interior lining of the pipe comprises:(a) a first layer comprising a material selected from the group consisting of a polyolefin molding composition, a polyamide molding composition, and a polyvinylidene fluoride molding composition; and(b) a second layer comprising a material comprising a molding composition comprising a polymer selected from the group of polyarylene ether ketone, polyphenylene sulphide, polyarylene ether ketone/polphenylene sulphide blend, polyphenyl sulphone, and polyalkylene naphthalate.2. The flexible pipe of claim 1 , wherein the interior lining is a pipe.3. The flexible pipe of claim 1 , wherein the layer (b) is arranged toward the inside claim 1 , as seen from the layer (a).4. The flexible of claim 1 , comprising claim 1 , alongside the interior lining claim 1 , at least one layer selected from the group consisting of an internal carcass claim 1 , an external reinforcing layer claim 1 , and an exterior sheath.5. The flexible pipe of claim 1 , wherein an internal diameter of the interior lining is in a range from 30 to 900 mm and has a wall thickness in a range from 2 to 50 mm.6. The flexible pipe of claim 1 , wherein an internal diameter of the interior lining is in a range from 40 to 800 mm and has a wall thickness in a range from 2.5 to 40 mm.7. The flexible pipe of claim 1 , wherein an internal diameter of the interior lining is in a range from 50 to 700 mm and has a wall thickness in a range from 3 to 30 mm.8. The flexible pipe of claim 1 , wherein an internal diameter of the interior lining is in a range from 60 to 620 mm and has a wall thickness in a range from 4 to 25 mm.9. The flexible pipe of claim 1 , wherein an internal diameter of the interior lining is in a range from 60 to 620 mm and has a wall ...

Plastic Composite Moulded Bodies Obtainable by Welding in an Electromagnetic Alternating Field

The invention relates to plastics composite mouldings obtainable via welding in an alternating electromagnetic field, in which the weld is obtained with the aid of a plastics material which comprises nano-scale, magnetic oxidic particles, which are composed of aggregated primary particles, and where the primary particles are composed of magnetic metal oxide domains whose diameter is from 2 to 100 nm in a non-magnetic metal oxide matrix or non-magnetic metalloid oxide matrix.

Process for production of a composite

A composite part is produced by a process in which at least one of components a) and b) of said composite part is treated with an Openair plasma on a contact surface between said components a) and b) prior to production of the composite part, followed by molding-on of the other component; wherein said components are as follows: a) a part which entirely or to some extent comprises a molding composition comprising at least 40% by weight of a polyamide whose monomer units contain an average of at least 8 carbon atoms, and b) a part comprising another molding composition.

Use of a polyamide molding composition with high melt stiffness for coextrusion with a high-melting-point polymer

Multilayer composites are obtained from a molding composition which contains the following components: a) 100 parts by weight of polyamide and b) from 0.005 to 10 parts by weight of a compound having at least two carbonate units by coextruding with a molding composition based on a high-melting-point polymer whose crystallite melting point Tm is at least 255° C. and/or whose glass transition temperature Tg is at least 180° C.

COMPRESSED-AIR BRAKE LINE

A compressed-air brake line which comprises: I) an external layer made of a moulding composition which comprises at least 50% by weight of PA11 and/or PA12, and II) an internal layer made of a moulding composition which comprises at least 50% by weight of polyamide whose monomer units comprise on average at least 8 C atoms is provided. Layer II) does not contain PA11 and/or PA12. The compressed-air brake line has high bursting strength even at elevated temperature, good low-temperature impact resistance, good ageing resistance, and can be produced at low cost.

Flexible pipe and process for production thereof

The invention relates to a flexible tube of multilayer construction having unbonded layers, wherein at least one layer is formed in that a tape made of a plastic molding compound is spirally wound about a further inner layer, wherein the upper and lower layers of the tape are simultaneously or subsequently welded to each other at overlapping regions. The tube is particularly suitable for offshore application in oil and gas extraction ...

Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.

Process for production of a composite

A composite part is produced by a process in which at least one of components a) and b) of said composite part is treated with an Openair plasma on a contact surface between said components a) and b) prior to production of the composite part, followed by molding-on of the other component; wherein said components are as follows: a) a part which entirely or to some extent comprises a molding composition comprising at least 40% by weight of a polyamide whose monomer units contain an average of at least 8 carbon atoms, and b) a part comprising another molding composition.

PROCESS FOR PRODUCING PLASTIC RODS

A process for producing a plastic rod, in particular round rods, suitable for machining is provided. The process includes extruding a plastic profile of a first plastic molding composition which forms the outermost layer of the plastic rod, and inserting a second plastic molding composition as a rod core into the profile within a calibrator downstream of the extruder. The first plastic molding composition contains at least 50% by weight of a semicrystalline thermoplastic and the first plastics moulding composition has the following properties: a) crystallite melting point Tm in accordance with ISO 11357 of at least 170° C., b) crystallization temperature Tk in accordance with ISO 11357 of at most 70 K below T. and c) enthalpy of fusion AH in accordance with ISO 11357 of at least 20 J/g.

FLEXIBLE PIPE AND PROCESS FOR PRODUCTION THEREOF

The invention relates to a flexible tube of multilayer construction having unbonded layers, wherein at least one layer is formed in that a tape made of a plastic molding compound is spirally wound about a further inner layer, wherein the upper and lower layers of the tape are simultaneously or subsequently welded to each other at overlapping regions. The tube is particularly suitable for offshore application in oil and gas extraction 1. A process for producing a flexible pipe of multilayer structure with unbonded layers , the process comprising:forming a layer by winding a tape helically onto a more internal layer, andsimultaneously or subsequently welding an upper sublayer of the tape and a lower sublayer of the tape to one another at an overlap region,wherein the tape comprises a plastics molding composition.2. The process of claim 1 ,wherein the more internal layer comprises a carcass, a tubular interior lining, or a reinforcing layer.3. The process of claim 1 ,wherein the tape comprises a molding composition based on olefinic polymer, polyamide, fluoropolymer, polyphenyl sulphone, polyarylene ether ketone, polyphenylene sulphide, or a polyarylene ether ketone/polyphenylene sulphide blend.4. The process of claim 1 , wherein the tape is a single-layer tape or a multilayer tape.5. The process of claim 4 ,{'sub': 2', '2, 'wherein the tape is a multilayer tape comprising a barrier layer with respect to diffusion of HS or CO.'}6. The process of claim 5 ,wherein the barrier layer comprises an EVOH molding composition, or the barrier layer is a metal foil.7. The process of claim 1 , wherein the tape comprises long-fiber reinforcement.8. The process of claim 1 ,wherein the welding comprises hot-gas welding, welding via contact with a heated tool, welding with a flame, or welding via introduction of electromagnetic radiation.9. A flexible pipe claim 1 , obtained by a process comprising the process of .10. The process of claim 2 ,wherein the more internal layer comprises a ...

Use of a polyamide molding composition with high melt stiffness for coextrusion with a high-melting-point polymer

Multilayer composites are obtained from a molding composition which contains the following components: a) 100 parts by weight of polyamide and b) from 0.005 to 10 parts by weight of a compound having at least two carbonate units by coextruding with a molding composition based on a high-melting-point polymer whose crystallite melting point T m is at least 255° C. and/or whose glass transition temperature T g is at least 180° C.

Plastic composite moulded bodies obtainable by welding in an electromagnetic alternating field

The invention relates to plastics composite moldings obtainable via welding in an alternating electromagnetic field, in which the weld is obtained with the aid of a plastics material which comprises nano-scale, magnetic oxidic particles, which are composed of aggregated primary particles, and where the primary particles are composed of magnetic metal oxide domains whose diameter is from 2 to 100 nm in a non-magnetic metal oxide matrix or non-magnetic metalloid oxide matrix.

FLEXIBLE PIPE HAVING A MULTI-LAYERED STRUCTURE

The invention relates to a flexible pipe having a multi-layered structure comprising unbonded layers, comprising an inner lining having the following layer arrangement: a) an innermost layer made of a fluoropolymer molding compound, b) an intermediate layer made of a molding compound on the basis of an olefinic polymer, which is selected from the group consisting of polyethylene, isotactic polypropylene, syndiotactic polypropylene and syndiotactic polystyrene, c) an outer layer made of a polyamide molding compound, wherein the layer made of a polyamide molding compound is particularly efficiently protected against hydrolysis. The pipe is thus particularly suited for offshore applications in oil or gas production. 1. A flexible pipe of multilayer structure with unbonded layers , said pipe comprising an inner lining comprising:a) an innermost layer comprising a fluoropolymer molding composition;b) an intermediate layer comprising a molding composition comprising an olefinic polymer selected from the group consisting of polyethylene, isotactic polypropylene, syndiotactic polypropylene and syndiotactic polystyrene; andc) an outer layer comprising a polyamide molding composition.2. The flexible pipe of claim 1 , wherein the inner lining is a pipe.3. The flexible pipe of claim 1 , further comprising one or more layers selected from the group consisting ofan inner carcass,an outer reinforcing layer, andan outer shell.4. The flexible pipe of claim 2 , further comprising one or more layers selected from the group consisting ofan inner carcass,an outer reinforcing layer, andan outer shell. The present invention provides a flexible pipe of multilayer structure with unbonded layers. For the sake of simplicity and in accordance with English usage, it is referred to hereinafter as an unbonded flexible pipe. Such a pipe opposes the diffusion of gases out of a conveyed fluid with a high resistance, and can therefore be used particularly advantageously for conveying of crude oil, ...

AIR BRAKE LINE

A pipe includes an outer layer composed of a molding composition which comprises at least 40% by weight of a polyamide whose monomer units contain an average of at least 8 carbon atoms, and a layer composed of a polypropylene molding composition. An outer diameter of the pipe is in a range from 6 to 20 mm, a wall thickness of the pipe is in a range from 1.0 to 2.0 mm, and a thickness of the polypropylene layer is from 25 to 75% of the wall thickness. The pipe can be used as an air-brake line that can be produced at low cost, has high bursting strength, and has good low-temperature impact resistance.

Multilayer composite comprising layers of partly aromatic polyamides

A multilayer composite containing the following layers: 1. a first layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and II. a second layer (layer II) of a moulding compound containing at least 60 wt. % of a mixture of the following components: 1) 75 to 100 parts by wt. of a partly aromatic copolyamide and 2) 25 to 0 parts by wt. of an olefinic copolymer as impact modifier with the proviso that in the moulding compound of layer II the mixture of components 1) and 2) comprises at least 5 fewer parts by wt, of olefinic copolymer than in the moulding compound of layer I, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.

ADHESION PROMOTER COMPOSITIONS AND PRIMER COMPOSITIONS FOR METAL-PLASTIC HYBRID COMPONENTS

The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.

MULTILAYER HOLLOW BODY HAVING HIGH LEACHING RESISTANCE

A multilayer hollow body has the following layers: I. an inner layer (layer I) containing a moulding composition based on PA612, PA610, PA1010, PA1012 and/or PA1212 and copolymers thereof and mixtures thereof; II. optionally an adhesion promoter layer (layer II) containing a moulding composition based on the following components: a) 0 to 80 parts by weight of a polyamide selected from PA6, PA66, PA6/66 and mixtures thereof, b) 0 to 100 parts by weight of a polyamine-polyamide copolymer and c) 0 to 80 parts by weight of a polyamide selected from PA11, PA12, PA612, PA1010, PA1012, PA1212 and mixtures thereof, where the sum total of the parts by weight of components a), b) and c) is 100; III. a layer (layer III) containing an ethylene-vinyl alcohol copolymer moulding composition is executed in such a way that not more than 0.2 g/m2 of insoluble extract and not more than 7.0 g/m2 of soluble extract are washed out of the multilayer hollow body as an overall system on first exposure to fuel, determined on a multilayer pipe having the same layer structure, a wall thickness of 1 mm and an internal diameter of 6 mm. 1. A multilayer hollow body , comprising the following layers:I. an inner layer (layer I) comprising a moulding composition based on PA11, PA12, PA612, PA610, PA1010, PA1012 and/or PA1212 and copolymers thereof and mixtures thereof; a) 0 to 80 parts by weight of a polyamide selected from PA6, PA66, PA6/66 and mixtures thereof,', 'b) 0 to 100 parts by weight of a polyamine-polyamide copolymer, and', 'c) 0 to 80 parts by weight of a polyamide selected from PA11, PA12, PA612, PA1010, PA1012, PA1212 and mixtures thereof,, 'II. optionally an adhesion promoter layer (layer II) comprising a moulding composition based on the following componentswherein the sum total of the parts by weight of components a), b) and c) is 100, and wherein, in addition, in the sum total of components a) and b), at least 16 parts by weight consist of monomer units which derive from ...

Metal-plastic hybrid component

The invention relates to a polymer composition, and to a semifinished plastics product, the surface of which has been formed at least to some extent from the polymer composition. The invention further relates to a production process associated therewith for the semifinished plastics product. A feature of the polymer composition is that it comprises from 50 to 99.7% by weight of a polymer and from 0.3 to 20% by weight of one or more adhesion-promoting additives. The invention further relates to plastics-metal hybrid components and production of these.

Multilayer composite comprising layers of partly aromatic polyamides

A multilayer composite containing the following layers: 1. a first layer (layer I) of a moulding compound containing at least 40 wt. % of the following components: 1) 60 to 99 parts by wt. of a copolyamide based on hexamethylenediamine, terephthalic acid and an aliphatic dicarboxylic acid having 8 to 19 carbon atoms and 2) 40 to 1 parts by wt. of an olefinic copolymer as impact modifier, wherein the parts by wt. of 1) and 2) sum to 100; and II. a second layer (layer II) of a moulding compound containing at least 60 wt. % of a mixture of the following components: 1) 75 to 100 parts by wt. of a partly aromatic copolyamide and 2) 25 to 0 parts by wt. of an olefinic copolymer as impact modifier with the proviso that in the moulding compound of layer II the mixture of components 1) and 2) comprises at least 5 fewer parts by wt, of olefinic copolymer than in the moulding compound of layer I, has a high heat distortion temperature, a very good impact resistance, a high elongation at break and good layer adhesion.

SPORTS SHOE COMPRISING STUDS OR STUD RECEIVERS

The invention relates to studded shoes which comprise metal studs and a plastics sole. Studs and sole are connected to one another by a coating of an adhesion promoter composition, wherein the composition comprises at least one copolyamide-based hot-melt adhesive. The studded shoe can be used in the sports sector or hiking sector. 1: A sports shoe comprising:studs or stud receivers,a plastic sole, andan adhesion promoter composition that comprises at least one copolyamide-based hot-melt adhesive;wherein the studs and, respectively, stud receivers and plastic sole are connected to one another at least by a coating of the adhesion promoter composition.2: The sports shoe according to claim 1 , wherein the copolyamide comprises additions of at least one epoxy component and of at least one blocked polyisocyanate claim 1 , as other constituents of the hot-melt adhesive.3: The sports shoe according to claim 1 , that comprises studs claim 1 , wherein the longitudinal direction of the studs is perpendicular claim 1 , almost perpendicular claim 1 , or at an angle claim 1 , to the plane of the sole.4: The sports shoe according to claim 1 , that comprises studs comprising at least one material selected from the group consisting of metal and plastic.5: The sports shoe according to claim 1 , wherein the plastic sole is applied by an injection-moulding process claim 1 , by thermoforming claim 1 , or by hot pressing onto the stud material.6: A plastic shoe sole comprising:a plastic sole,studs or stud receivers, andan adhesion promoter composition that comprises at least one copolyamide-based hot-melt adhesive;wherein the studs and, respectively, stud receivers, and the plastic sole are connected to one another at least by a coating of the adhesion promoter composition.7: A process for producing a sports shoe claim 1 , according to claim 1 , wherein the adhesion promoter composition is applied at least to some extent to the surface of the sole and the sole is then connected to the ...

PROCESS FOR PRODUCING A METAL-PLASTIC HYBRID COMPONENT

The invention provides a process for producing a hybrid component comprising metal and plastic. The process comprises the steps of a) pretreating the metal surface by applying at least one conversion layer, b) applying at least one layer of an adhesion promoter composition and c) bonding the metal to the plastic. The adhesion promoter composition comprises at least one copolyamide-based hotmelt adhesive. 1. Process for producing a hybrid component comprising metal and plastic , comprising the steps ofa. pretreating the metal surface by applying at least one conversion layer,b. applying at least one layer of an adhesion promoter composition andc. bonding the metal to the plastic,characterized in that the adhesion promoter composition comprises at least one copolyamide-based hotmelt adhesive.2. Process according to claim 1 , characterized in that the copolyamide comprises additions of at least one epoxy component and of at least one blocked polyisocyanate claim 1 , as other constituents of the hotmelt adhesive.3. Process according to claim 1 , characterized in that the plastic has been reinforced claim 1 , preferably fibre-reinforced.4. Process according to claim 1 , characterized in that a converting agent is used to produce the conversion layer.5. Process according to claim 4 , characterized in that the converting agent comprises halides.6. Process according to claim 4 , characterized in that the converting agent comprises halide salts claim 4 , complex halides or mixtures of these halides.7. Process according to claim 5 , characterized in that the converting agent comprises fluorides.8. Process according to claim 1 , characterized in that the plastic is applied to the coated metal by injection moulding claim 1 , pressing claim 1 , laminating claim 1 , in-mould coating or (co)extrusion.9. Process according to claim 1 , characterized in that the conversion layer is obtained by a process for treating a surface in which an operating gas is used to produce a plasma jet ...

ADHESION PROMOTER COMPOSITIONS AND PRIMER COMPOSITIONS FOR METAL-PLASTIC HYBRID COMPONENTS

The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive. 1. An adhesion promoter composition comprising:a. at least one polymer A selected from the group consisting of at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins, and mixtures thereof, andb. at least one copolyamide-based hotmelt adhesive.2. The adhesion promoter composition according to claim 1 , wherein the hotmelt adhesive further comprises blocked polyisocyanates and an epoxy component.3. The adhesion promoter composition according to that comprises:a. 5% to 25% by weight of at least one polymer A,b. 5% to 50% by weight of at least one copolyamide-based hotmelt adhesive, and 'based in each case on the total weight of the composition, where the percentages of all the constituents add up to 100% by weight.', 'c. 30% to 80% by weight of at least one organic solvent,'}4. The adhesion promoter composition according to that comprises at least one crosslinker resin selected from the group consisting of melamine resins claim 1 , blocked isocyanate resins and mixtures thereof.5. A primer composition comprising:a. at least one ...

Fibre composite hybrid components

The invention relates to hybrid components comprising at least one fibre composite material as material B and at least one material A. Material A is selected from plastics, metals, ceramic compositions, wood, glass, composite materials, textile fibres and from prefabricated products produced from textile fibres. Material A is bonded to material B by at least one coating of an adhesion promoter composition comprising at least one copolyamide-based hotmelt adhesive.

Use of a polyamide molding composition having high melt stiffness for coextrusion with a refractory polymer

Bei Verwendung einer Formmasse, die folgende Komponenten enthält: DOLLAR A a) 100 Gew.-Teile Polyamid sowie DOLLAR A b) 0,005 bis 10 Gew.-Teile einer Verbindung mit mindestens zwei Carbonateinheiten DOLLAR A zur Coextrusion mit einer Formmasse auf Basis eines hochschmelzenden Polymers, das einen Kristallitschmelzpunkt T¶m¶ von mindestens 270 DEG C und/oder eine Glasübergangstemperatur T¶g¶ von mindestens 190 DEG C aufweist, werden Mehrschichtverbunde mit guter Qualität erhalten, insbesondere mit guten Schicht- und Wanddickenverteilungen. When using a molding compound which contains the following components: DOLLAR A a) 100 parts by weight of polyamide and DOLLAR A b) 0.005 to 10 parts by weight of a compound with at least two carbonate units DOLLAR A for coextrusion with a molding compound based on a high-melting polymer , which has a crystallite melting point T¶m¶ of at least 270 ° C and / or a glass transition temperature T¶g¶ of at least 190 ° C, multilayer composites with good quality are obtained, in particular with good layer and wall thickness distributions.

Flexible tube with diffusion barrier

Bei einem flexiblen Rohr mehrschichtigen Aufbaus mit unverbundenen Schichten, das eine innere Auskleidung besitzt, die folgende Schichten enthält: a) Mindestens eine Schicht, deren Material ausgewählt ist aus der Gruppe Polyolefin-Formmasse, Polyamid-Formmasse und Polyvinylidenfluorid-Formmasse sowie b) mindestens eine Schicht, deren Material aus einer Formmasse basierend auf einem Polymer besteht, das ausgewählt ist aus der Gruppe Polyarylenetherketon, Polyphenylensulfid, Polyarylenetherketon/Polyphenylensulfid-Blend und Ethylen-Vinylalkohol-Copolymer, ist die äußere Armierung besonders effizient vor Korrosion durch nach außen diffundierende aggresive Bestandteile des beförderten Mediums geschützt. Das Rohr eignet sich daher insbesondere für Offshoreanwendungen in der Öl- oder Gasförderung. In the case of a flexible pipe of multilayer construction with unconnected layers, which has an inner lining which contains the following layers: a) at least one layer, the material of which is selected from the group consisting of polyolefin molding compound, polyamide molding compound and polyvinylidene fluoride molding compound, and b) at least one Layer, the material of which consists of a molding compound based on a polymer selected from the group consisting of polyarylene ether ketone, polyphenylene sulfide, polyarylene ether ketone / polyphenylene sulfide blend and ethylene-vinyl alcohol copolymer, the outer reinforcement is particularly efficient against corrosion by aggressive components that diffuse outwards transported medium protected. The pipe is therefore particularly suitable for offshore applications in oil or gas production.

Flexible tube with multilayer construction

Bei einem flexiblen Rohr mehrschichtigen Aufbaus mit unverbundenen Schichten, das eine innere Auskleidung mit folgender Schichtenanordnung enthält: a) Eine innerste Schicht aus einer Fluorpolymer-Formmasse, b) eine Zwischenschicht aus einer Formmasse auf Basis eines olefinischen Polymers, das ausgewählt ist aus der Gruppe Polyethylen, isotaktischem Polypropylen, syndiotaktischem Polypropylen und syndiotaktischem Polystyrol, c) eine äußere Schicht aus einer Polyamid-Formmasse ist die Schicht aus einer Polyamidformmasse besonders effizient gegen Hydrolyse geschützt. Das Rohr eignet sich daher insbesondere für Offshoreanwendungen in der Öl- oder Gasförderung. In the case of a flexible pipe of multilayer construction with unconnected layers, which contains an inner lining with the following layer arrangement: a) an innermost layer made of a fluoropolymer molding compound, b) an intermediate layer made of a molding compound based on an olefinic polymer which is selected from the group consisting of polyethylene , isotactic polypropylene, syndiotactic polypropylene and syndiotactic polystyrene, c) an outer layer made of a polyamide molding compound, the layer made of a polyamide molding compound is particularly efficiently protected against hydrolysis. The pipe is therefore particularly suitable for offshore applications in oil or gas production.

Flexible pipe having a multi-layered structure

Bei einem flexiblen Rohr mehrschichtigen Aufbaus mit unverbundenen Schichten, das eine innere Auskleidung mit folgender Schichtenanordnung enthält: a) Eine innerste Schicht aus einer Fluorpolymer-Formmasse, b) eine Zwischenschicht aus einer Formmasse auf Basis eines olefinischen Polymers, das ausgewählt ist aus der Gruppe Polyethylen, isotaktisches Polypropylen, syndiotaktisches Polypropylen und syndiotaktisches Polystyrol, c) eine äußere Schicht aus einer Polyamid-Formmasse ist die Schicht aus einer Polyamidformmasse besonders effizient gegen Hydrolyse geschützt. Das Rohr eignet sich daher insbesondere für Offshoreanwendungen in der Öl- oder Gasförderung.

Method of decorating surfaces

Mit einem Verfahren zur Herstellung eines oberflächendekorierten Formteils, wobei a) ein Formteil bereitgestellt wird und b) mindestens eine Portion der Formteiloberfläche mit einer dekorierenden Folie unter Einstrahlung von elektromagnetischer Strahlung verschweißt wird, wird die Oberfläche eines in einem ersten Schritt beispielsweise mittels Rapid Prototyping erzeugten Formteils nachträglich dekoriert. With a method for producing a surface-decorated molded part, wherein a) a molded part is provided and b) at least a portion of the molded part surface is welded to a decorating film under the influence of electromagnetic radiation, the surface of a molded part produced in a first step, for example by means of rapid prototyping subsequently decorated.

FLEXIBLE TUBE FOR THE TRANSPORT OF CRUDE OIL OR NATURAL GAS, ITS USE AND ITS HEATING METHOD

TUBULACAO TEMPERAVEL PARA USO NA AREA DE OFFSHORE. A invengao refere-se a um tubo flexfvel que de dentro para fora content as seguintes camadas: - um revestimento interno, bem como; - ao menos uma camada de armapSo; sendo que adicionalmente, entre as duas camadas, encontra-se uma outra camada de uma fita enrolada, contendo esta fita as seguintes camadas: a) uma primeira camada externa de uma massa de moldagem plastics nao condutora de eletricidade, b) uma camada intermediaria de uma massa de moldagem plastica com capacidade condutora eletrica, cuja resistencia de passagem especffica de acordo com a IEC 60093 este na faixa de 10-3 ate 1010 (6mega)m, sendo que na camada intermediaria estao embutidos ao menos dois condutores metalicos ao longo da fita que nao se tocam reciprocamente em toda extensao longitudinal, bem como, c) uma segunda camada externa de uma massa de moldagem plAstica nao condutora de eletricidade, pode ser aquecida de maneira eficiente de maneira que no transporte do petroleo pode ser empregado em regioes frias.

Temperature-controllable pipe for offshore applications

A flexible pipe comprises the following layers, from the inside to the outside: an interior lining, and at least one reinforcement layer. Between two layers, there is also a further layer made of a wound tape. The tape comprises the following layers: a) a first exterior layer made of a plastics moulding composition that is not electrically conductive, b) an intermediate layer made of an electrically conductive plastics moulding composition of which the volume resistivity to IEC 60093 is in the range from 10-3 to 10 10 .OMEGA.m, where at least two metallic conductors have been embedded into the intermediate layer along the tape in such a way that, over the entire length, they do not touch one another, and c) a second exterior layer made of a plastics moulding composition that is not electrically conductive. The flexible pipe can be heated efficiently, and can therefore be used for conveying oil in cold regions.

Flexible pipe with increased heat-resistance

A flexible pipe of multilayer structure with unbonded layers, where the pipe has an interior lining which comprises the following layers: a) at least one layer of which the material is composed of a moulding composition based on a polymer selected from the group of: - polyarylene ether ketone, - polyphenyl sulphone, - polyphenylene sulphide, - polyarylene ether ketone/polyphenylene sulphide blend and - semiaromatic polyamide, where from 5 to 100 mol% of the dicarboxylic acid content thereof derives from an aromatic dicarboxylic acid having from 8 to 22 carbon atoms, and which has a crystallite melting point Tm of at least 260°C; b) at least one layer of which the material is composed of a fluoropolymer moulding composition can be operated at temperatures above 130°C. The pipe has particular suitability for offshore applications in the production of oil or of gas.

Flexible pipe with diffusion barrier

The invention relates to a flexible pipe having a multi-layered structure comprising unbonded layers, comprising an inner lining containing the following layers: a) at least one layer, the material of which is selected from the group consisting of polyolefin molding compound, polyamide molding compound and polyvinylidene fluoride molding compound and b) at least one layer, the material of which consists of a molding compound that is based on a polymer and selected from the group consisting of polyarylene ether ketone/polyphenylene sulfide blend, polyphenylsulfone and polyalkylene naphthalate, wherein the outer reinforcement is particularly efficiently protected against corrosion by corrosive components of the delivered medium that diffuse to the outside. The pipe is thus in particular suited for offshore applications in oil or gas production.

Use of a polyamide moulding composition with high melt rigidity for coextruding with a polymer melting at a high temperature

Hybrid fibre composite material components

Producing a hybrid component comprising metal and plastic, comprises pretreating the metal surface by applying at least one conversion layer, applying at least one layer containing a primer composition, and bonding the metal with the plastic. The primer composition contains at least one hot-melt adhesive based on copolyamide. Independent claims are included for: (1) coating for hybrid devices comprising applying the conversion layer and at least one layer containing hot-melt adhesive composition; and (2) the hybrid device comprising metal and plastic.

Process for producing a composite

Compressed-air brake line.

Una tubería de frenos de aire comprimido la cual consta las siguientes capas: I. una capa externa hecha de de una composición de moldeo que comprende al menos un 50% del peso de PA11 y/o PA12, y II. una capa interna hecha de una composición de moldeo que comprende al menos un 50% del peso de la poliamida cuyas unidades de monómeros comprenden en promedio al menos 8 átomos de carbono, con la excepción de PA11 y PA12, puede fabricarse a bajo costo; presenta una alta resistencia al estallido incluso a temperaturas elevadas, una resistencia a los impactos a temperatura baja y una buena resistencia al envejecimiento.

Method for decorating surfaces

METHOD FOR DECORATING SURFACES The surface of a shaped article produced in a first step, for example by means of rapid prototyping, is subsequently decorated by a method for the production of a surface-decorated shaped article, a) a shaped article being provided and b) at least a portion of the surface of the shaped article being welded to a decorating film with incidence of electromagnetic radiation.

Plastic composite moulded bodies obtainable by welding in an electromagnetic alternating field

The invention relates to plastic composite moulded bodies which are obtainable by welding in an electromagnetic alternating field and whose welding assembling is carried out with the aid of a plastic material containing nanoscale magnetic oxide particles consisting of aggregated primary particles, wherein said primary particles are formed by magnetic metal-oxide domains whose diameter ranges from 2 to 100 nm in a non-magnetic metal-oxide or metalloid-oxide matrix.

Flexible, multilayered hose

Temperable pipe for offshore applications

Ein flexibles Rohr, das von innen nach außen folgende Schichten enthält: - eine innere Auskleidung sowie - mindestens eine Armierungsschicht, wobei sich zusätzlich zwischen zwei Schichten eine weitere Schicht aus einem gewickelten Tape befindet und wobei das Tape folgende Schichten enthält: a) eine erste äußere Schicht (1) aus einer nicht elektrisch leitfähigen Kunststoffformmasse, b) eine Zwischenschicht (2) aus einer elektrisch leitfähigen Kunststoffformmasse, deren spezifischer Durchgangswiderstand gemäß IEC 60093 im Bereich von 10 -3 bis 10 10 Ωm liegt, wobei in die Zwischenschicht (2) mindestens zwei metallische Leiter (4) entlang des Tapes so eingebettet sind, dass sie sich über die gesamte Länge hinweg nicht berühren, sowie c) eine zweite äußere Schicht (3) aus einer nicht elektrisch leitfähigen Kunststoffformmasse, lässt sich effizient beheizen, so dass es bei der Ölförderung in kalten Regionen eingesetzt werden kann. A flexible tube containing the following layers from the inside out: - an inner lining as well at least one reinforcing layer, In addition, there is another layer of a wound tape between two layers and the tape contains the following layers: a) a first outer layer (1) of a non-electrically conductive plastic molding compound, b) an intermediate layer (2) made of an electrically conductive plastic molding compound, the specific volume resistivity according to IEC 60093 in the range of 10 -3 to 10 10 Ωm, wherein in the intermediate layer (2) at least two metallic conductors (4) along the tape so embedded are that they do not touch over the entire length, as well c) a second outer layer (3) of a non-electrically conductive plastic molding compound, Can be heated efficiently, so that it can be used in oil production in cold regions.

Producing a composite part from plastic parts that cannot be directly welded together comprises using an intermediate film with surfaces compatible with each part

Producing a composite part from parts A and B that cannot be directly welded together comprises providing a film with a first surface compatible with part A and a second surface compatible with part B, contacting the first surface with part A and the second surface with part B, irradiating the assembly with electromagnetic radiation to melt the film, and allowing the molten region to cool. An independent claim is also included for a compoosite part produced as above.

Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

Adhesion promoter for metal-plastic hybrid components

The invention relates to a polymer composition and to a plastic semi-finished product whose surface is at least partially formed from said polymer composition. The invention also relates to an associated production method for said plastic semi-finished product. The polymer composition is characterised in that it contains between 50 and 99.7 wt.% of a polymer, and 0.3 to 20 wt.% of one or more adhesion-promoting additives. The invention also relates to plastic-metal hybrid components and to their production.

Flexible pipe with increased heat-resistance

A flexible pipe of multilayer structure with unbonded layers, where the pipe has an interior lining which comprises the following layers: a) at least one layer of which the material is composed of a moulding composition based on a polymer selected from the group of: - polyarylene ether ketone, - polyphenyl sulphone, - polyphenylene sulphide, - polyarylene ether ketone/polyphenylene sulphide blend and - semiaromatic polyamide, where from 5 to 100 mol% of the dicarboxylic acid content thereof derives from an aromatic dicarboxylic acid having from 8 to 22 carbon atoms, and which has a crystallite melting point Tm of at least 260°C; b) at least one layer of which the material is composed of a fluoropolymer moulding composition can be operated at temperatures above 130°C. The pipe has particular suitability for offshore applications in the production of oil or of gas.

Sports shoe comprising studs or stud holders

Flexible tube and method for producing same

The invention relates to a flexible tube of multilayer construction having unbonded layers, wherein at least one layer is formed in that a tape made of a plastic molding compound is spirally wound about a further inner layer, wherein the upper and lower layers of the tape are simultaneously or subsequently welded to each other at overlapping regions. The tube is particularly suitable for offshore application in oil and gas extraction.

Flexible tube having high temperature resistance

The invention relates to a flexible tube of multilayer construction and having unbonded layers, having an inner cladding comprising the following layers: a) at least one layer of a material made of a molding compound on the basis of a polymer selected from the group: polyarylene ether ketone, polyphenyl sulfone, polyphenylene sulfide, polyarylene ether ketone/polyphenylene sulfide blend and partially aromatic polyamide; the dicarbolic acid content thereof arising from 5 to 100% mol of aromatic dicarbolic acid having 8 to 22 C atoms, and having a crystallite melting point T m of at least 260 °C; b) at least one layer, the material thereof being made of a fluoropolymer molding compound and being able to be operated at temperatures above 130 °C. The tube is particularly suitable for offshore application in oil and gas extraction.

Method for decorating surfaces

The surface of a shaped article produced in a first step, for example by means of rapid prototyping, is subsequently decorated by a method for the production of a surface-decorated shaped article. The method requiring the steps of: a) a shaped article being provided and b) at least a portion of the surface of the shaped article being welded to a decorating film with incidence of electromagnetic radiation.

Thermoplastic compositions of polyetheretherketones having improved tribological material properties and use thereof

A thermoplastic component may include a matrix component (A) and a filler component (B). The matrix component (A) may include a polyetheretherketone and the filler component (B) may include inorganic particles and carbon-containing particles. The overall composition may include equal or different portions, as filler component (B), of hydrophobic silicon dioxide, carbon fibres, titanium dioxide particles, graphite particles, and a particulate lubricant selected from divalent metallic sulfides and alkaline earth metal sulfates.

Transparent part

A transparent part which comprises the following components: I. A covering layer of a polyamide polymer melt which comprises the following constituent parts: a) from 50 to 100 parts by weight of polyamide which can be produced from the following monomers: α) from 70 to 100 mol% of diamine, selected from the group containing m-xylylenediamine, p-xylylenediamine and mixtures thereof, β) from 0 to 30 mol% of other diamines having from 6 to 14 C atoms, wherein the mol% amounts relate here to the sum of diamine, and γ) from 70 to 100 mol% of aliphatic dicarboxylic acids having from 10 to 18 C atoms, and δ) from 0 to 30 mol% of other dicarboxylic acids having from 6 to 9 C atoms, wherein the mol% amounts relate here to the sum of dicarboxylic acid; b) from 0 to 50 parts by weight of another polyamide, wherein the parts by weight of a) and b) add up to 100, II. a substrate of a polymer melt on the basis of a largely amorphous polymer, wherein a) the covering layer, a possibly present adhesive promoter layer and possibly present further layers do not comprise any particle-shaped additives which reduce the transparency discernibly and b) with a layer thickness of 1 mm, the substrate has a maximum of at least 30% in the transmission curve within the visible spectrum from 380 to 800 nm, is scratch-resistant, chemical-resistant and suitable for optical applications.

Process for producing a composite

temperable piping for offshore use

tubulação temperavel para uso na área de offshore a invenção refere-se a um tubo flexível que de dentro para fora contém as seguintes camadas: ao menos uma camada de armação; sendo que adicionalmente, entre as duas camadas, encontra-se uma outra camada de uma fita enrolada, contendo esta fita as seguintes camadas: a) uma primeira camada externa de uma massa de moldagem plástica não condutora de eletricidade, b) uma camada intermediária de uma massa de moldagem plástica com capacidade condutora elétrica, cuja resistência de passagem específica de acordo com a iec 60093 está na faixa de 10³ até 1010 qm, sendo que na camada intermediária estão embutidos ao menos dois condutores metálicos ao longo da fita que não se tocam reciprocamente em toda extensão longitudinal, bem como, c) uma segunda camada extérna de urna massa de moldagem plástica não condutora de eletricidade, pode ser aquecida de maneira eficiente de maneira que no transporte do petróleo pode ser empregado em regiões frias

Temperable pipeline for underwater applications

Tubo flexible para el transporte de petróleo crudo o gas natural, que contiene las siguientes capas de dentro hacia fuera: - un revestimiento interno, - al menos una capa de refuerzo, encontrándose adicionalmente entre dos capas una capa adicional constituida por una banda arrollada, caracterizado porque la banda contiene las siguientes capas: a) una primera capa (1) constituida por una masa de moldeo de material sintético no electroconductiva, b) una capa intermedia (2) constituida por una masa de moldeo de material sintético electroconductiva, cuya resistencia de paso específica según IEC 60093 se sitúa en el intervalo de 10-3 a 1010 Ωm, estando alojados en la capa intermedia al menos dos conductores metálicos (4) a lo largo de la banda, de modo que no están en contacto a lo largo de la longitud total, así como c) una segunda capa externa (3) constituida por una masa de moldeo de material sintético no electroconductiva. Flexible tube for the transport of crude oil or natural gas, which contains the following layers from the inside out: - an internal coating, - at least one reinforcement layer, additionally between two layers being an additional layer consisting of a rolled band, characterized because the band contains the following layers: a) a first layer (1) constituted by a molding mass of non-electroconductive synthetic material, b) an intermediate layer (2) constituted by a molding mass of electroconductive synthetic material, whose resistance of specific step according to IEC 60093 is in the range of 10-3 to 1010 Ωm, at least two metal conductors (4) being housed in the intermediate layer, so that they are not in contact along the total length, as well as c) a second outer layer (3) constituted by a molding mass of non-electroconductive synthetic material.

Corpo oco de camadas múltiplas com alta resistência à lixiviação, uso do mesmo e sistema de combustível

Um corpo oco de camadas múltiplas compreendendo as seguintes camadas: I. uma camada interna (camada I) compreendendo uma composição de moldagem com base em PA612, PA610, PA1010, PA1012 e/ou PA1212 e seus copolímeros e suas misturas; II. opcionalmente uma camada promotora de adesão (camada II) composta por uma composição de moldagem com base nos seguintes componentes: a) 0 a 80 partes em peso de uma poliamida selecionada entre PA6, PA66, PA6/66 e suas misturas, b) 0 a 100 partes em peso de um copolímero de poliamina-poliamida e c) 0 a 80 partes em peso de uma poliamida selecionada entre PA11, PA12, PA612, PA1010, PA1012, PA1212 e suas misturas, onde a soma total das partes em peso dos componentes a), b) e c) é 100; III. uma camada (camada III) composta por uma composição de moldagem de copolímero de etileno-álcool vinílico é executado de forma que não mais de 0,2 g/m2 de extrato insolúvel e não mais de 7,0 g/m2 de extrato solúvel sejam lavados do corpo oco de camadas múltiplas como um sistema geral na primeira exposição ao combustível, determinado em um tubo de camadas múltiplas com a mesma estrutura de camada, uma espessura de parede de 1 mm e um diâmetro interno de 6 mm.(...).

Verfahren zur herstellung eines verbundes

Durch schweissen im elektromagnetischen wechselfeld erhältliche kunststoffverbundformkörper

Thermoplastische zusammensetzungen von polyetheretherketonen mit verbesserten tribologischen materialeigenschaften und verwendung dieser

Thermoplastische zusammensetzungen von polyetheretherketonen mit verbesserten tribologischen materialeigenschaften und verwendung dieser

Die Erfindung bezieht sich auf eine thermoplastische Zusammensetzung umfassend eine Matrixkomponente A) und eine Füllstoffkomponente B), wobei die Matrixkomponente A) ein Polyetheretherketon ist und die Füllstoffkomponente B) anorganische Partikel und Kohlenstoff-enthaltende Partikel aufweisen, und die Gesamtzusammensetzung zu gleichen oder unterschiedlichen Teilen als Füllstoffkomponente B) hydrophobes Siliziumdioxid, Kohlenstoff-Fasern, Titandioxid-Partikel, Graphit-Partikel und einen partikulären Schmierstoff ausgewählt aus zweiwertigen, metallischen Sulfiden und Erdalkalisulfaten umfassen.

Composição termoplástica, seu processo de produção, material e artigos conformados obteníveis, e uso dos ditos artigos

COMPOSIÇÃO TERMOPLÁSTICA, SEU PROCESSO DE PRODUÇÃO, MATERIAL E ARTIGOS CONFORMADOS OBTENÍVEIS, E USO DOS DITOS ARTIGOS. A invenção refere-se a um componente termoplástico que compreende um componente de matriz A) e um componente de preenchimento B), em que o componente de matriz A) é uma poliéter-éter-cetona e o componente de preenchimento B) incluindo partículas inorgânicas e partículas contendo carbono, e a composição geral compreende porções iguais ou diferentes, como componente de preenchimento B), de dióxido de silício hidrofóbico, fibras de carbono, partículas de dióxido de titânio, partículas de grafite e um lubrificante particulado selecionado dentre sulfetos metálicos divalentes e sulfatos de metal alcalino-terroso.