United States Patent
US Patent 5437905: Ballistic laminate structure in sheet form
US 5437905 · granted 1995-08-01
Abstract
A ballistic laminate structure in sheet form, which includes a first array of high performance, unidirectionally-oriented fiber bundles and a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to the first array of fiber bundles, and laminated to the first array of fiber bundles in the absence of adhesives or bonding agents. First and second thermoplastic films are bonded to outer surfaces of the laminated first and second arrays of unidirectional fiber bundles without penetration of the films into fiber bundles or through the laminate from one side to the other.
| Patent Number | 5437905 |
|---|---|
| Title | Ballistic laminate structure in sheet form |
| Filed | 1994-05-17 |
| Granted | 1995-08-01 |
| Inventor(s) | Park; Andrew D. |
| Number of Claims | 23 |
Abstract
A ballistic laminate structure in sheet form, which includes a first array of high performance, unidirectionally-oriented fiber bundles and a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to the first array of fiber bundles, and laminated to the first array of fiber bundles in the absence of adhesives or bonding agents. First and second thermoplastic films are bonded to outer surfaces of the laminated first and second arrays of unidirectional fiber bundles without penetration of the films into fiber bundles or through the laminate from one side to the other.
Claim 1
A ballistic laminate structure in sheet form, comprising: (a) a first array of high performance, unidirectionally-oriented fiber bundles; (b) a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to said first array of fiber bundles, and laminated to said first array of fiber bundles in the absence of adhesives or bondingagents, said first and second arrays of high performance unidirectionally-oriented fiber bundles comprising fibers chosen from the group consisting of aramid fiber ultra high molecular weight polyethylene, high molecular weight polyethylene, high modulusvinylon, and liquid crystal polymer-based fiber; and (c) first and second thermoplastic films bonded to outer surfaces of said laminated first and second arrays of unidirectional fiber bundles without penetration of said films into said fiber bundles or through the laminate from one side to theother, whereby a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.
Claims
23 totalA ballistic laminate structure in sheet form, comprising: (a) a first array of high performance, unidirectionally-oriented fiber bundles; (b) a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to said first array of fiber bundles, and laminated to said first array of fiber bundles in the absence of adhesives or bondingagents, said first and second arrays of high performance unidirectionally-oriented fiber bundles comprising fibers chosen from the group consisting of aramid fiber ultra high molecular weight polyethylene, high molecular weight polyethylene, high modulusvinylon, and liquid crystal polymer-based fiber; and (c) first and second thermoplastic films bonded to outer surfaces of said laminated first and second arrays of unidirectional fiber bundles without penetration of said films into said fiber bundles or through the laminate from one side to theother, whereby a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.