Abstract:
A resorbable tissue scaffold fabricated from bioactive glass fiber forms a rigid three-dimensional porous matrix having a bioactive composition. Porosity in the form of interconnected pore space is provided by the space between the bioactive glass fiber in the porous matrix. Strength of the bioresorbable matrix is provided by bioactive glass that fuses and bonds the bioactive glass fiber into the rigid three- dimensional matrix. The resorbable tissue scaffold supports tissue in-growth to provide osteoconductivity as a resorbable tissue scaffold, used for the repair of damaged and/or diseased bone tissue.
Abstract:
Recovered fibre suffers a huge drop in mechanical performance of 80-90% in comparison to fresh glass fibre. Consequently, recovered glass fibre is unsuitable for use as reinforcement in composite materials. However, disclosed herein is a method by which the majority or substantially all of the mechanical strength may be recovered, by elevating the temperature of a basic solution and treating the recovered glass fibre with the basic solution. The treated, recovered glass fibres may therefore subsequently used in the manufacture of new glass fibre-reinforced composite material.
Abstract:
A low weight resistant porous glass fiber of type I is disclosed with a developed specific surface area of 5 times to 120 times the outer surface of a standard glass fiber, and a material having physical, chemical or biological reactive properties deposited on the developed surface area of said porous glass fiber. A low weight resistant porous glass fiber of type II is disclosed as well with a developed specific surface area of 20 times to 200 times the outer surface of a standard glass fiber. The developed surface of said porous glass fiber is covered with a material capable of being a support for receiving a material having physical, chemical or biological reactive properties, and a material having physical, chemical or biological reactive properties is deposited on the intermediate support material covering the porous glass fiber. Corresponding processes of preparation and various uses are described.
Abstract:
The invention relates to Al2O3-containing, high temperature resistant glass sliver based on silicic acid, having a highly textile, cotton-like and voluminous character. The invention also relates to glass staple fiber products from said glass sliver and their use. The textile character and high temperature resistance are obtained in particular by selective acid extraction. The composition of the inventive glass sliver comprises in particular SiO2, as main component, and 1-5 weight% Al2O3, as subsidiary components.
Abstract:
L'invention concerne un dispositif de fabrication de fibres minérales par centrifugation interne, comprenant :- un centrifugeur (1) adapté à former des fibres minérales par fibrage à partir de matière minérale fondue, - au moins une couronne (16, 17) adaptée à pulvériser de l'eau sur les fibres minérales en formation. L'invention permet de fabriquer des fibres minérales sèches en réalisant des économies d'énergie.
Abstract:
La présente invention concerne un procédé pour préparer un verre à porosité bimodale, macroporeuse et mésoporeuse, consistant à soumettre à une transformation pseudomorphe un verre macroporeux. La présente invention concerne également ledit verre ainsi préparé et éventuellement fonctionnalisé ainsi que ses différentes utilisations.
Abstract:
A resorbable tissue scaffold fabricated from bioactive glass fiber forms a rigid three-dimensional porous matrix having a bioactive composition. Porosity in the form of interconnected pore space is provided by the space between the bioactive glass fiber in the porous matrix. Strength of the bioresorbable matrix is provided by bioactive glass that fuses and bonds the bioactive glass fiber into the rigid three- dimensional matrix. The resorbable tissue scaffold supports tissue in-growth to provide osteoconductivity as a resorbable tissue scaffold, used for the repair of damaged and/or diseased bone tissue.
Abstract:
Die vorliegende Erfindung betrifft eine hochtemperaturbeständige anorganische Faser auf Kieselsäurebasis mit verbesserten mechanischen Eigenschaften, ein Verfahren zu deren Herstellung sowie spezielle Verwendungen von und Produkte aus dieser. Die erfindungsgemäße Faser weist die folgende Zusammensetzung auf: 81 - 94 Gew.-% SiO 2 , 6 - 19 Gew.-% AI 2 O 3 , 0 - 12 Gew.-% ZrO 2 , 0 - 12 Gew.-% TiO 2 , 0 - 3 Gew.-% Na 2 O sowie maximal 1,5 Gew.-% weitere Komponenten.
Abstract:
A glass fiber capable of withstanding temperatures in excess of 1900 DEG F (1038 DEG C) is produced by treating a glass, preferably E-glass, fiber. The glass fiber is first leached with selected acids, and then the leached fiber is treated with organo-metallic materials of low viscosity, such as a dispersion of low molecular weight water-in-oil emulsion of dimethyl polysiloxane. The fiber is used in such applications as embedding it in a fire-resistant active coating material or embedding it into one surface of a polyolefin or composite plastic, such as a polypropylene sheet. The treated fiberglass can be used as a sole component or in concert with a fire-resistant or fire retardant material to further enhance its fire-resistant properties. Other fire-resistant composite materials are formed by precoating a fabric (1) with an active (intumescent or subliming) material (3), then embedding the precoated fabric (5) into a surface of a preferably thermoplastic sheet substrate (11). The precoated fabric is preferably adhered to or embedded in the surface of the substrate simultaneously with a molding process which forms the composite into a shape such as an automotive container like a fuel tank or trunk base. Other composites (21) are formed by adhering thermal protective structure (28) comprising a fabric (29) precoated with an active thermal protective composition (31) to a structure (23, 25, 27, 33) formed from fibers coated with an adhesive.