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WO/1999/052695A1 |
A method of moulding an article from prepreg including laying a sheet of prepreg on a mould to conform with the mould includes also treating the resin of the prepreg to increase its viscosity to a predetermined value which, when the shee...
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WO/1999/050040A1 |
An apparatus and method are provided for molding clusters of fibers, including at least some thermoplastic fibers, into products at a cost, quality, and performance level acceptable for commercial production. The clusters are dedensified...
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WO/1999/047335A1 |
A process for producing a three zone, reinforced, continuous, geometrically symmetrical microporous membrane including a porous support material encapsulated within a middle zone disposed between an upper zone and a lower zone wherein at...
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WO/1999/044959A1 |
The present invention provides reinforced laminates for printed circuit boards having a woven reinforcement fabric of a yarn including E-glass fibers having a coating which is compatible with the polymeric matrix material. The yarn has a...
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WO/1999/044955A1 |
The present invention provides glass fiber strands impregnated with non-abrasive solid particles which provide interstitial spaces of at least 3 micrometers between adjacent fibers within a strand which are useful for reinforcing composi...
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WO/1999/044958A1 |
The present invention provides methods for inhibiting abrasive wear of glass fiber strands by providing a layer of inorganic solid lubricant particles to surfaces of the glass fibers in sliding contact with hard surface asperities of sol...
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WO/1999/044960A1 |
The present invention provides glass fiber strands coated with non-hydratable, inorganic solid lubricant particles useful for reinforcing composites such as laminated electronic supports.
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WO/1999/044956A1 |
The present invention provides glass fiber strands coated and impregnated with greater than 20 weight percent of inorganic particle fillers which are useful for reinforcing composites.
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WO/1999/043745A1 |
The present invention discloses a generic method for producing void and gas occlusion free materials, as well as apparatuses for batch and continuous production of same. This generic method can be utilized in the production of a wide var...
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WO/1999/043860A1 |
A surface-treated steel wire for reinforcing structures for articles of manufacture made of vulcanized elastomeric material, in which the said wire is coated with a layer of metal alloy, wherein the said alloy is a zinc/manganese binary ...
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WO/1999/042268A1 |
The invention relates to a method of treating compositions formed from filaments with a treating agent, comprising the steps of: introducing the compositions into a treatment space and simultaneously supplying a fluid, expanding the flui...
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WO/1999/037463A1 |
A polymer melt filtering device comprising a housing with an inflow (3) and an outflow (4) for the polymer melt, in addition to a slider (5) which can be sealingly displaced therebetween, perpendicular to said inflow and outflow. The sli...
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WO/1999/036239A1 |
The invention relates to a method for coating fibers shaped as fiber strands (rovings and mats) using a fluidized bed technique, wherein (i) the desired composition of the individual coating constituents is directly applied from the flui...
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WO/1999/033652A1 |
Non-continuous fiber reinforced plastics utilizing non-continuous fibers and a method to facilitate impregnation of non-continuous fibers with sizing and a coupling agent into a continuous sheet moved through a first dryer, a vertical pr...
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WO/1999/033623A1 |
The invention relates to a method and a device for impregnating fibrous material (2), i.e. fiber bundles, hanks, tissues or fiber mats, wherein an impregnating substance is applied on the intermediate space of the fibrous material, surro...
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WO/1999/028126A1 |
A prepreg for multilayer printed wiring boards having an insulating substrate comprising a resin-impregnated nonwoven glass fabric, characterized in that the nonwoven glass fabric is layered on a carrier sheet made of a synthetic resin f...
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WO/1999/026999A1 |
The present invention discloses a generic method for producing void and gas occlusion free materials, as well as apparatuses for batch and continuous production of same. This generic method can be utilized in the production of a wide var...
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WO/1999/027002A1 |
Processes for the production of prepregs and laminated sheets, which are free from air pollution, permits resource conservation, and make it possible to produce excellent laminated sheets having constant qualities at a low cost. Specific...
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WO/1999/027206A1 |
Fibrous insulation (10) suitable for use in insulation cavities in buildings (40) including mineral fibers (12) in an amount within the range of from about 90 to about 99 percent by weight, and organic material, in the form of organic fi...
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WO/1999/022920A1 |
The invention concerns an impregnation method for producing in particular a composite material comprising a fibre or filament array and a continuous matrix, rigid or flexible, with which said array is in close contact. The method is char...
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WO/1999/020446A1 |
A process for preparing in one step a fiber-filled thermoplastic resin composition which has high fluidity and can give processed articles having high impact strength. The process comprises using equipment constituted of an extruder and ...
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WO/1999/016600A1 |
Elastomer composite blends are produced by novel wet/dry mixing methods and apparatus. In the wet mixing step or stage, fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mi...
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WO/1999/012716A1 |
The present invention relates to a process for producing a hollow body of fibre-reinforced thermoplastic, and an arrangement for performing the process. In the process a continuous fibre bundle (3) is transported from means of transport ...
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WO/1999/011856A1 |
The invention relates to a textile fabric (1) wherein one of the surfaces thereof is impregnated by at least one polymer (3) in such a way that said textile fabric (1) substantially incorporates the entire polymer (3) mass. The polymer (...
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WO/1999/002319A1 |
Disclosed is a process of forming a prepreg material having substantially no voids. According to the process of the invention, the reinforcing material is heated to a temperature above the temperature of the impregnating resin. The prepr...
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WO/1999/001501A2 |
Fiber-reinforced composites prepared from a depolymerizable and repolymerizable polymer have the processing advantages of a thermoset without being brittle. Impregnation of polymer into the fiber bundle can be achieved with ease, while s...
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WO/1998/058785A1 |
Resin impregnation of fiber bundles for use in making a composite material is described. The improvements of the disclosed method and impregnation head enable high fiber take-off speeds without excessive damage or fraying of the fiber bu...
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WO/1998/053968A1 |
The present invention discloses a generic method for producing void- and gas occlusion-free materials, as well as apparatuses for batch and continuous production of same. This generic method can be utilized in the production of a wide va...
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WO/1998/050211A1 |
Binder coated fibres comprising from 80 to 99 % by weight reinforcing fibres and from 1 to 20 % by weight of a preform binder resin, said binder resin being in the form of particles or discrete areas on the surface of the reinforcing fib...
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WO/1998/050212A1 |
The invention relates to a method for dehydrating a two-phase liquid mixture consisting of a thermoplastic synthetic melt phase and an acqueous phase, comprising the following steps: a) coagulation of the two-phase liquid mixture in a fi...
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WO/1998/043807A1 |
A long fiber-reinforced thermoplastic resin covered composite body comprising a core portion which is a thermoplastic resin composite body reinforced in a longitudinal direction by reinforcing fibers and a covering portion made of a ther...
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WO/1998/042485A1 |
The invention relates to a method for impregnating and/or coating flat fibrous structures (2) with multi-constituent systems, wherein the constituents of said systems are applied to fibrous structures which are then pressed. The inventiv...
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WO/1998/041805A1 |
In conventional methods absorbent base paper is impregnated by being passed through an aqueous solution of the impregnating agent and then conveyed to a drier after the excess has been squeezed off by means of metering rolls. The quantit...
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WO/1998/034979A1 |
A partially impregnated preform employs a fiber layer partially impregnated with a resin to form a fiber reinforced resin composite. The fiber layer of the partially impregnated preform is formed of a plurality of parallel oriented tows,...
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WO/1998/031535A1 |
Method for treating strands comprising filaments with a pulverulent processing medium, wherein the strands are spread and the spread strands thus obtained are then passed into a processing chamber, wherein the pulverulent processing medi...
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WO/1998/030382A1 |
A reinforced pultrusion product (30') comprises a polymeric matrix (36), at least one longitudinally oriented buckled reinforcement fiber (44) embedded in said polymeric matrix (36), and at least one longitudinally oriented linear reinfo...
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WO/1998/030374A1 |
A process for making an article made of a fiber-reinforced composite material comprises: (1) preparing a preform by (i) coating one or more reinforcement fibers in the form of a continuous filament or tow with an aqueous dispersion of a ...
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WO/1998/030375A1 |
The present invention provides a molding media and method of producing resin stabilized polymeric fiber mats useful as thermal and acoustical insulation. The molding media and method of the invention lower the cost of producing such mats...
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WO/1998/027250A2 |
In order to produce reinforced plastic foils, a material is used whose lead threads (1) consist of a core (2) and a synthetic coating (3). The synthetic coatings are laterally extended by processing in a calendering unit and subsequently...
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WO/1998/026912A1 |
A carbon fiber prepreg is produced by impregnating a carbon fiber bundle comprising a large number of continuous carbon filaments and having a degree of intermingle of at least 10 cm as a hook drop value with a base resin containing a th...
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WO/1998/022644A1 |
An improvement in the preparation of fiber preforms in which binder and fibers are dispersed to contact on vacuum-supplied screens is disclosed, comprising particularly (a) selecting a particulate binder material which is solid at 25 �...
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WO/1998/010924A1 |
A mat (100a) is provided which comprises a plurality of strands, each including reinforcing fibers and polymeric material (142a). First portions of the strands are angularly positioned at an angle relative to second portions of the stran...
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WO/1998/006551A2 |
In one general aspect, the invention involves applying a chemical treatment to fibers (10), such as reinforcing fibers (12) suitable for making a composite article, so as to size and/or preimpregnate the fibers. The chemical treatment ha...
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WO/1997/041571A1 |
The invention relates to a multi-layer reinforced and stabilized cable construction comprising a core portion (1, 11) and a non-metallic sheathing portion with barrier and protective layers and two or more reinforcement layers. In order ...
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WO/1997/040658A2 |
An extruder according to the invention comprises at least two annular conical feed gaps (9) one within the other, formed between a rotatable rotor (1) and a stator (4, 5). At least some of the material to be extruded is subjected in the ...
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WO/1997/037832A1 |
The invention relates to a method for making a product to be extruded, and an extruder. The extruder comprises at least two conical stators (1, 2) and at least one conical rotor (3) placed rotatably between the stators. The extruder furt...
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WO/1997/037829A1 |
The invention relates to a method and an apparatus for preparing an extrudable product, and an extruded product. An extruder according to the invention comprises at least two annular feed gaps (4) between which there is a stator (3), and...
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WO/1997/037831A1 |
The extruder comprises at least one conical stator (1, 2) and at least one rotatable conical rotor (3). The rotor (3) is mounted from its widest point with bearings (12a, 12b) in such a way that the first bearing (12a) receives the force...
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WO/1997/037830A2 |
The invention relates to a method and an apparatus for manufacturing an extruded plastic product, the apparatus comprising at least one rotor (1) and at least one stator (2, 3) with a feed gap (4) provided between them, a groove (7) bein...
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WO/1997/036724A2 |
Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow co...
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