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WO/2000/016968A1 |
A polytetrafluoroethylene molded product formed by calcination molding, which is resistant to deformation. The molded product is produced by molding a polytetrafluoroethylene powder using compression molding to form a pre-molded product ...
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WO/2000/014446A1 |
The invention consists of a compensator comprising at least one elongated bending/bulb (2; 42) for the provision of a variable pipe length where the wall of the compensator has at least one wire mesh (12) and a fluoroplastic material joi...
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WO/2000/010938A1 |
The invention relates to a method for producing hollow fibres, comprising the following steps: a) a film is provided, b) said film is wound into a stem. The film has at least one layer containing one of the following materials: solid ele...
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WO/1999/061833A1 |
A multilayer composite pipe structure is described. The multilayer composite pipe comprises a hollow inner conduit, a first layer of adhesive, a metallic intermediate layer, a second layer of adhesive, as well as, the outer thermoplastic...
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WO/1999/056049A1 |
A plastic pipe (1) comprising two hollow cylindrical end areas (3, 4) between a central concertina-like area consisting of twelve folds (2). Preferably, the plastic pipe (1) mainly consists of polytetrafluoroethylene (PTFE). The plastic ...
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WO/1999/051423A1 |
The invention relates to a method for producing a throttle point (3) in a flexible tube (1), characterized in that the wall (13) of the flexible tube (1) is produced in such a way that part of the length of the inner area of the tube (1)...
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WO/1999/047823A1 |
A rubber roller having a medium electric resistance (having a volume resistivity of 10?6¿ to 10?12¿ $g(V).cm) which comprises a core body (A), an elastic layer (B) prepared by curing an epichlorohydrin-based rubber composition comprisi...
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WO/1999/044812A1 |
A method of manufacturing tire tubes, wherein a tube element (2') extrusion molded by an extrusion molding machine is provided with a circumferential wall (3i) for an air chamber, a circumferential wall (3o) for a sealant chamber, and a ...
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WO/1999/040010A2 |
A method of manufacturing paint rollers includes the steps of extruding (20) a cylindrical plastic core (28) through a rotating extruder head (26), and securing an absorbent sheet material (80) onto the outer surface of the core in a con...
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WO/1999/037472A1 |
The invention relates to a method in and an arrangement for the manufacture of an elongated, hollow, rotationally symmetrical product such as a flagpole. At least one elongated, tubular mould (1) is successively charged with the material...
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WO/1999/033619A1 |
A wirelaying apparatus and method using a tool (30) having a cutter (31) operatively opening a cut in the interior bore surface (11) of a cylindrical pipe fitting (10), laying wire (12) into the cut and closing the cut using a flange clo...
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WO/1999/025570A2 |
An air tube (12) of elastomer material for tyres is described, which is divided into at least two parts by an internal wall (19) extending in the equatorial plane and delimiting a central core (20) and two sidewalls (21) in said air tube...
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WO/1999/020460A1 |
In an apparatus (11) for forming pipe insulation, discrete panels of generally rigid planar board insulation are fed through a sizing apparatus (219) to control thickness, then fed to a conveyor (211) where adjacent ends of the panels ar...
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WO/1999/014496A1 |
A flexible, chemically resistant tubular diaphragm and method for making the same. The diaphragm includes a substantially cylindrical body having a length and an outer portion comprising a layer of elastomeric material having an inner su...
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WO/1999/012720A1 |
The invention relates to a method and an arrangement for supporting the ends of a resistance wire in the manufacture of electrically heat-weldable plastic tube fittings in an injection mould. In the method, an electrically heated resista...
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WO/1999/010421A1 |
The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one interpolymer of an alpha-olefin and vinyl aromatic monomer and (2) a coupling amount of at least one poly(sulfony...
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WO/1999/010423A1 |
The present invention includes a process of preparing a coupled polymer by heating an admixture containing (1) at least one elastomer comprising ethylene and at least one comonomer which is selected from alpha olefins having at least 3 c...
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WO/1999/010415A1 |
A process of reacting a poly(sulfonyl azide) with a polymer comprising steps (a) forming a first admixture, hereinafter referred to as a concentrate, of a first amount of a first polymer or in a liquid which does not require removal from...
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WO/1999/010422A1 |
The invention includes a process of preparing a coupled polymer characterized by heating an admixture containing (1) at least one ethylene polymer or blend of ethylene polymers having a density of at least 0.89 g/mL and less than 0.935 g...
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WO/1999/010427A1 |
The invention includes a process of preparing a coupled polymer comprising heating an admixture containing: 1) at least one polyolefin comprising ethylene and at least one comonomer which is selected from alpha olefins having at least 3 ...
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WO/1999/005441A1 |
The invention concerns a method for obtaining a flexible conduit (1), said conduit comprising a streamlined strip (4) including in a single piece a core (4a) with two matching edges (4b, 4c), and at least one rib (4d) projecting on one s...
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WO/1999/002330A1 |
The invention relates to a method for soldering the ends of tubular containers, specially tubes, filled with a flowable medium, made of a flat thin-walled material that can be softened or melted using heat, wherein the tubular container ...
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WO/1999/001281A1 |
The invention pertains to the apparatus and process for shaping and forming of thermal insulation materials (M) around tubes and pipes (T) in a continuous production process wherein the tube or pipe (T) and a long singular strip of insul...
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WO/1998/054054A1 |
The invention relates to a device for extending an intermediate wall arranged in a packaging tube's longitudinal direction with a surplus of material as measured between the attachment locations of the intermediate wall. Means are provid...
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WO/1998/052739A1 |
A method of making double wall plastic pipe (8) having inner (8) and outer (5) pipe walls adhered to one another without mechanically holding the inner pipe wall against the outer pipe wall comprises extruding separate streams of molten ...
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WO/1998/053241A1 |
A method for the manufacture of a heat fusion fitting, which comprises i) forming a body (1) comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element ...
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WO/1998/040286A2 |
According to the invention, an end wall (113) and two side walls (111, 112) of a bag tube are formed by a piece of plastic film. The side walls (111, 112) are tightly joined to each other along two side parts (114, 115). A shoulder part ...
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WO/1998/038246A1 |
A rubber composition for footwear, conveyor belt covers, rolls, hoses, electric wires, rubber-coated fabrics or grips, which comprises (A) an elastomer, (B) 5 to 150 parts by weight of a filler, and (C) a polysiloxane represented by gene...
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WO/1998/032202A1 |
The invention concerns a corrugated jacket pipe (1) comprising undulated sections (3) which are disposed one behind the other in the direction of one axis (2) and extend over move than half of the pipe periphery. The corrugated jacket pi...
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WO/1998/026920A1 |
Hoses are often reinforced with fabric to improve their performance characteristics, such as burst strength. For instance, radiator hose used in automative applications is generally reinforced with continuous yarn. However, it is a labor...
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WO/1998/022360A1 |
A process is disclosed for manufacturing tubular bodies (4, 8, 14), in particular multi-layered tubular bodies with at least one partition which extends over their length and forms adjacent longitudinal chambers (A, B; C, D, E; F, G), by...
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WO/1998/021024A1 |
This invention relates to a process for producing a flexible hose combination comprising a first vacuum hose (1) with a large diameter, an inner wall (6) and an entrace (17), in which first vacuum hose (1), in longitudinal direction, at ...
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WO/1998/014319A1 |
The present invention relates to a facility for producing two- or multi-compartment tubes consisting of tubular sections (6, 6', 6'') with one or more partition walls (18, 19; 20) and a tube head, the discharge opening of which can be cl...
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WO/1998/008670A1 |
A tube stock material (2'), an interior of which is compartmented by a partition (5) into an air chamber (3) and a sealing chamber (7), is provided in a sealant chamber peripheral wall (40) with an air vent hole (4) communicating to the ...
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WO/1998/007523A1 |
An apparatus and method for nonextrusion manufacturing of catheters wherein particulate polymer materials are applied over an outer surface of a core member. As particulates, composition of the polymer material can be varied continuously...
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WO/1998/002361A1 |
A dispensing system (40, 100, 100A) for a container is provided in the form of a dispensing end structure defining a dispensing orifice (60, 160) and a surrounding attachment region (58, 158). Subsequently, a dispensing valve (54) is mol...
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WO/1997/049545A1 |
There are prior art packaging tubes consisting of a tube body (11) with a prefabricated head (13) which is melted on the inner circumference of the body. This method of jointing can result in faulty, i.e. leaking tubes. According to the ...
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WO/1997/047913A1 |
To produce a pipe fitting applicable to pipes by welding, a heating wire is laid in the region of the contact surfaces and connected at the end to contacts. The pipe fitting consists of thermally weldable material in which both the heati...
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WO/1997/044173A1 |
The invention relates to a method for manufacturing a pipe fitting, said method comprising manufacturing a preform (1) of plastic, and forming an additional layer (3) on top of it. According to the invention, the additional layer (3) is ...
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WO/1997/042021A1 |
The present invention provides a method for fabricating flexible medical tubings (32) comprising the steps of providing a tubing (32) of a polymer material, the tubing (32) having a longitudinal axis and an initial diameter, orienting th...
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WO/1997/036733A1 |
A method of reshaping a hollow tube (110) having a circumferential wall defining an inside and an outside of the tube and formed from at least one layer of a thermoformable plastic, with the outside (122) of the wall having at least one ...
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WO/1997/036653A1 |
A FRP racket having a frame formed from a fibre-reinforced plastic including a resin and a reinforcing fibre and constituted by a top portion forming a string surface, a grip portion and a throat portion connecting the top portion to the...
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WO/1997/036127A2 |
The invention applies to the field of the automobile tires utilization and production of building structures out of them, namely, pipes of various purposes, for example, drain and sewerage pipes, pipes for road crossings, etc. The mini-f...
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WO/1997/027820A1 |
A tube of porous PTFE having at least two first and at least two second regions wherein the at least two first regions have a greater density than the at least two second regions. For tubes of porous expanded PTFE having a microstructure...
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WO/1997/024219A1 |
A thin-walled shoulder of a tubular container is formed without changing the appearance and shape of the tubular container, and enhancing the work efficiency when the neck and the body of the tubular container are integrally molded. A me...
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WO/1997/023344A1 |
A tube stock (2'), an interior of which is compartmented into an air chamber (3) and a sealant chamber (7) by a partition (5), is subjected to extruding and cut into a predetermined length, and after an air valve (6) communicating to the...
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WO/1997/021950A1 |
The invention relates to a co-extruded multilayer plastic pipe comprising an inner pipe (1) and an outer pipe (2) and between them a middle layer (3) of a softer material than the inner pipe. The invention also relates to a method for pr...
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WO/1997/018412A2 |
(57) Abstract An apparatus for forming electrofusion saddle couplers includes a first longitudinally movable rotatable arm (24), a second rotatable arm (32) movable perpendicularly to the first arm, and an operating head (42) attached to...
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WO/1997/010936A2 |
The invention relates to a process for heating polymer material, including irradiation of said polymer material with infrared radiation. In accordance with the process according to the invention the infrared radiation has wave lengths wh...
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WO/1997/010463A1 |
The invention relates to electrofusion couplers (1) and has for its objective to enable the employment of relatively thin wire electrical resistance heating wire (5) with a substantial guarantee of uniform heating along the length of the...
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