HIGH BUOYANCY COMPOSITE MATERIALS

Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder tha...

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Bibliographic Details
Main Authors Ashok BHATNAGAR, Henry Gerard ARDIFF, Gary KRATZER, Lori L. WAGNER, Tyler BARTELT, David A. HURST
Format Patent
LanguageEnglish
Spanish
Published 08.07.2019
Subjects
ARMOUR
ARMOURED OR ARMED VEHICLES
ARMOURED TURRETS
BLASTING
HEATING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIGHTING
MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
TRANSPORTING
WEAPONS
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Summary:Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water. Se proporcionan materiales compuestos antibalísticos que tienen una alta flotabilidad positiva en el agua. Más particularmente, se proporcionan materiales compuestos flotantes libres de espuma fabricados mediante el uso de técnicas de procesamiento en seco. Los materiales comprenden pliegos fibrosos que están parcialmente revestidos con un aglutinante particulado que está termoprensado para transformar una porción del aglutinante en parches elevados discontinuos unidos a las superficies de fibra/cinta, mientras que otra porción del aglutinante particulado permanece en las fibras/cintas como partículas no fundidas. La presencia de las partículas del aglutinante no fundidas mantiene espacios vacíos dentro de los materiales compuestos que aumentan la flotabilidad positiva de los compuestos en el agua.
Bibliography:Application Number: MX20180012514