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WO/1997/034307A1 |
The invention concerns a method of producing a fibre-reinforced insulating body, in particular for high-voltage engineering, the insulating body having improved electrical and dielectric properties. According to the invention, the fibres...
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WO/1997/031052A1 |
An epoxy resin composition suitable as a matrix resin for fiber reinforcement; and a yarn prepreg which has an excellent high-order processability by virtue of suitable unwindability and drapeability and a high degree of development of t...
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WO/1997/028949A1 |
The invention relates to an extruder comprising at least two conical stators and at least one rotatable rotor situated between the stators. The extruder comprises a supply conduit (3) for supplying material into the space between the sta...
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WO/1997/027983A1 |
A composite friction unit comprises a three-dimensional composite body formed of a substantially uniform array of predominately glass strands of primary reinforcing fibers in matrix of phenolic resin material, the reinforcing fibers dist...
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WO/1997/026397A2 |
A method for making a composite material by continuously depositing glass yarns on a moving substrate, at least 80 wt % of the yarns being blended yarns consisting of intimately mixed glass filaments and thermoplastic organic material fi...
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WO/1997/024211A2 |
A composite sheet (48) is made of a moldable resin and reinforcement fibers, where the resin is a thermoplastic resin, thermosetting resin or mixture thereof, and the reinforcement fibers are fibers centrifuged from a rotary process fibe...
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WO/1997/021532A1 |
A method for producing homogenous material with an extruder, an extruder, and a multilayer plastic pipe. The extruder according to the invention comprises at least two conical stators (1, 2) and at least one rotatable conical rotor (3) p...
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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/1997/019805A1 |
A method of manufacturing a long-fiber-reinforced resin structure comprises the steps of immersing an actually-endless long-fiber bundle in a molten resin bath, opening the long fibers while passing the bundle between pairs of opening pi...
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WO/1997/019226A1 |
A structural member for reinforcement of asphalt and concrete roadways and other products, and which comprises a gridwork (10) of warp strands (13) and weft strands (15) which are disposed at right angles to each other and so as to defin...
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WO/1997/013630A1 |
In the process of the invention for producing pressed laminates by pressing several layers of flat substrate material and duroplastic resin at temperature above the curing temperature of the duroplastic resin, 20 - 80 wt.% of solid powde...
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WO/1997/010935A1 |
The invention relates to a method for the manufacture of a recyclable product material in order to achieve a predetermined strength within a predetermined strain rate interval. The product material comprises at least one matrix material ...
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WO/1997/010941A1 |
A continuous method of extruding an oriented plastics article of improved strength. A chemically reactive polymer (33a, 33b), monomer or other compound is included in the matrix material(s) and a (multilayer) parison (34) is extruded or ...
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WO/1997/010940A1 |
The invention relates to an extruder with which material is extruded through a tool (2). Fluoropolymer is used between the extrusion material and the tool (2) for reducing friction between the material and the tool. At least the surface ...
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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/1997/010101A1 |
A method and apparatus (10) are provided for forming a fabric (18), suitable for making a finished composite product, using one or more composite strands (16). One embodiment of the apparatus (10) comprises at least one bushing (12) for ...
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WO/1997/007951A1 |
There are disclosed method and apparatus for blending rubber or plastics (17) in a system with particulate filler material and liquid such as oils and plasticisers, characterised in that the particulate filler material is impregnated wit...
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WO/1997/004946A1 |
The invention concerns a process for reinforcing matrix systems using strands of glass fibre, carbon fibre or other strengthening materials. The process involves subjecting a structure of strengthening material in continuous form to a ne...
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WO/1997/001424A1 |
In a device used to impregnate rovings with plastic material, an impregnating channel with a succession of spaced spreading elements is formed between boundary surfaces and in the drawing direction on both sides of the boundary surfaces,...
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WO/1997/001428A1 |
The invention relates to an extrusion apparatus for preparing a cylindrical plastic product or for coating the product at least with one layer of plastic, the extrusion apparatus comprising at least one conical stator (3, 4, 5), at least...
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WO/1997/001429A2 |
An extrusion apparatus and method, and a tubular product and a pipe made of several different materials. The extrusion apparatus according to the invention comprises at least one stator (1, 6, 10), at least one rotor (2, 2a, 2b), and at ...
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WO/1996/038280A1 |
A thermoplastic resin powder is made to adhere to the continuous filaments of a reinforcing strand, and a solution of a binder resin in a solvent is applied to the resulting strand to make the thermoplastic resin powder held among the fi...
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WO/1996/036477A1 |
The invention is concerned with an integrated process aiming at short cycle-time material integration in a sequential operation, using different processing methods as well as material preform types (neat polymer and polymer-based composi...
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WO/1996/030196A1 |
A pultrusion apparatus (10) and process for the impregnation of multiple fiber tows (12) with a thermoplastic resin (15) wherein an impregnation vessel (14) having an entrance (20) and an exit end (23) is provided with a fiber control in...
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WO/1996/028258A1 |
A method for producing flexible, low-bulk towpreg which involves powder coating a bundle of unspread fiber tows (35) arranged in a predetermined cross-sectional shape, and the resulting towpreg. During the powder coating process, the res...
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WO/1996/025655A1 |
The invention relates to a device for obtaining, in the manufacture of a high-strength composite, an indication that the reinforcement (1) of the composite has been wetted throughout by the matrix of the composite. The reinforcement at i...
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WO/1996/022180A1 |
A fiber bundle (B) workpiece is coated with a particulate material during passage about a plurality of pulleys (54, 56) arranged to establish a serpentine travel path portion through a coating zone (10). The pulleys have arcuate grooves ...
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WO/1996/019337A1 |
A method for producing asphalt fibers (26) includes supplying molten asphalt (20) to a rotating asphalt spinner (10), centrifuging asphalt fibers (22) from the asphalt spinner (10), and collecting the asphalt fibers (26). The molten asph...
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WO/1996/019618A1 |
The present invention relates to a manufacturing method of applying dry powder in a controlled manner to a variety of surfaces to form shapes, coatings, or composite materials. This is achieved by coating the surface with a tacky substan...
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WO/1996/018494A1 |
A fiber filler (31) for filling voids between mated fiber plies (10, 12, 14), for example, as occurs in the preparation of a preform assembly for forming a T-shaped structural member, is disclosed. The fiber filler comprises a plurality ...
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WO/1996/017723A1 |
An orientable in situ expandable layer (139) comprising: (a) a blend of incompatible, in situ-expandable thermoplastic particles and a thermosensitive matrix resin for the in situ-expandable thermoplastic particles which blend has the ca...
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WO/1996/015900A1 |
A low resin content unidirectional fiber tape (1) is disclosed for use in incorporating unidirectional fibers in a dry fiber preform for use in a resin transfer molding process. A plurality of unidirectional fibers (2) are located betwee...
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WO/1996/010660A1 |
A method and apparatus (10) are provided for producing composite strands (16). The apparatus (10) comprises a heated bushing (12) for supplying streams of molten glass to be drawn into continuous first fibers (14); a drawing device (20) ...
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WO/1996/005956A1 |
A method for producing long fiber-reinforced thermoplastic resin composition for promoting the impregnation of fused thermoplastic resin discharged against a bundle of fibers which are opened in a web form so as to cover the same into an...
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WO/1996/006227A1 |
In known pressure impregnating devices, a chamber that becomes continuously narrower in the transport direction is located between a roller surrounded by the web to be impregnated and the inner wall of a trough which contains the impregn...
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WO/1996/001785A1 |
A plant comprising a post (2') with fixed sections attached thereto at various heights, and a horizontally distortable articulated pipe (3') attached to each of said sections. Other fixed sections (B'1 ... B'19) are arranged on a single ...
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WO/1996/001177A1 |
New fibre-reinforced composite materials of improved mouldability and methods for making them, in which an initial (1) comprising long length ("continuous filament") reinforcement set in a matrix material is treated to enable these filam...
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WO/1996/000145A1 |
A quantity of fluid resin material is rendered into a flowable state without the use of solvents. The fabric (1) is then beaded with at least one elongate bead (11) of the flowable resin, wherein at least a portion of the bead (11) remai...
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WO/1995/028266A1 |
The invention concerns a process for impregnating fibre bundles, where the fibre bundle (6) is placed on a support (65) which, together with the fibre bundle, is conveyed past an impregnation device (32). In this process, the fibre bundl...
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WO/1995/025000A1 |
A process of making a fibre-reinforced polymeric material comprises sliding a fibre bundle over an arcuate support surface (2) in the line of the arc, and injecting into the bundle a molten or liquid polymer through a plurality of slots ...
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WO/1995/023825A1 |
In order to improve scratch resistance of moulded plastic parts having a plastic matrix filled with inorganic fillers, the filler amounting to 50 to 90 % by weight of the filled matrix, the filler comprises two filler fractions (a) and (...
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WO/1995/022437A1 |
Composite pressure vessels having improved fiber strength translation of the unidirectional, axial, impregnated strand are obtained by a process in which chemorheologically viscosity tailored matrix resin formulations containing surface-...
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WO/1995/021738A1 |
Chemorheologically viscosity tailored matrix resin formulations for use in forming prepregs and composite articles are disclosed. These formulations have a specified viscosity profile obtained from a curable matrix resin and an effective...
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WO/1995/020475A1 |
The invention relates to a method of making a composite laminate comprising the steps of providing unidirectionally oriented parallel fibres (UD filaments) (3) with a resin matrix to form a composite UD layer and laminating a plurality o...
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WO/1995/018279A1 |
This invention provides a gutter of a fiber-containing thermoplastic resin free from slipping off from a joint and being deformed between joints, and having a high weather resistance and a high impact resistance. This gutter is provided ...
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WO/1995/017998A1 |
Method of incorporation a talcum powder into a material, in particular a thermoplastic material. The method consists in (a) mixing the talcum powder with water and a polyethylene glycol, a polypropylene glycol or a copolymer of these com...
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WO/1995/018001A1 |
A process is described for minimizing resin waste in the impregnation of a porous web with a thermosettable resin. The process involves the use of resin application means comprising a rotatable roller (4) on which is deposited a liquid-f...
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WO/1995/018000A1 |
A process and apparatus are described for impregnating a porous web with a thermosettable resin. The process involves the use of resin application means comprising a large-diameter rotating roller (4) on which is deposited a liquid-form ...
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WO/1995/017999A1 |
A process and an apparatus are disclosed for impregnating a porous web with a thermosettable resin. The process involves the use of resin application means comprising a rotating roller (4) on which is deposited a liquid-form thermosettab...
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WO/1995/016814A1 |
A moist fabric of multifilament bundles is coated with a particulate solid material, which is fused and solidified to produce a fiber-reinforced composite web. Deep penetration of the fused resin is effected without need for pressure ass...
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