Impregnated glass fiber strands and products including the same

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/08 (2006.01) B29B 15/10 (2006.01) C03C 25/10 (2006.01) C04B 14/38 (2006.01) C04B 20/10 (2006.01) C08J 5/24 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2382188

The present invention provides an at least partially coated fiber strand comprising a plurality of glass fibers having a resin compatible coating composition on at least a portion of a surface of at least one of said glass fibers, the resin compatible coating composition comprising: (a) a plurality of lamellar, inorganic particles having a Mohs' hardness value which does not exceed the Mohs' hardness value of said glass fibers; and (b) at least one polymeric material. The present invention further provides the use of a resin compatible coating composition comprising: (a) a plurality of discrete particles formed from materials selected from non-heat expandable organic materials, inorganic polymeric materials, non-heat expandable composite materials and mixtures thereof, the particles having an average particle size sufficient to allow strand wet out; (b) at least one lubricious material different from said plurality of discrete particles; and (c) at least one film- forming material. The resin compatible coating composition can also comprise: (a) a plurality of hollow, non-heat expandable organic particles; and (b) at least one lubricious material different from the at least one hollow organic particle.

La présente invention concerne un filament de fibre de verre au moins partiellement recouvert, comprenant plusieurs fibres de verre qui présentent une composition de revêtement compatible avec la résine sur au moins une partie d'une surface d'au moins une desdites fibres de verre. La composition de revêtement compatible avec la résine comprend : (a) plusieurs particules inorganiques lamellaires présentant une dureté de Mohs qui n'excède pas la dureté de Mohs desdites fibres de verre; et (b) au moins un matériau polymère. Cette invention concerne également l'utilisation d'une composition de revêtement compatible avec la résine comprenant (a) plusieurs particules discrètes constituées de matériaux choisis parmi les matériaux organiques non expansibles à chaud, les matériaux polymères inorganiques, les matériaux composites non expansibles à chaud et des mélanges de ces derniers, ces particules ayant une dimension moyenne qui est suffisante pour permettre l'imprégnation complète du filament; (b) au moins un matériau lubrifiant, différent desdites plusieurs particules discrètes; et (c) au moins un matériau formant un film. La composition de revêtement compatible avec la résine peut également comprendre : (a) plusieurs particules organiques creuses non expansibles à chaud; et (b) au moins un matériau lubrifiant, différent desdites particules organiques creuses.

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