Composite ballistic fabric structures for hard armor applications

US8256019B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Henry Gerard Ardiff · Swift Creek Farms, US
• David A. Steenkamer · Midlothian, US
• Brian D. Arvidson · Chester, US
• Danelle F. Powers · Midlothian, US
• Bradley Grunden · Midlothian, US
• Ashok Bhatnagar · Richmond, US

Key dates

• Filing date: Aug 1, 2007
• Grant date: Sep 4, 2012
• Expiry date: Jul 5, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2623
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A ballistic resistant composite material useful in rigid armor applications. The composite material includes at least one consolidated network of high tenacity fibers in a thermoplastic matrix material. The resin is a thermoplastic polyurethane resin that is semi-crystalline at room temperature. The high tenacity fibers have a tenacity of at least about 7 g/d. Prior to consolidation the polyurethane resin matrix material is in an aqueous medium. When dry, the polyurethane matrix material has a tensile modulus (at 100% elongation) of at least about 500 psi (3.45 MPa), a tensile modulus (at 300% elongation) of at least about 500 psi (3.45 MPa), and an ultimate tensile strength of at least about 2000 psi (13.78 MPa). The ballistic resistant composite material has improved ballistic properties.