Composite reinforcing fabric

• US 5,538,781 A
• Filed: 11/07/1994
• Issued: 07/23/1996
• Est. Priority Date: 11/07/1994
• Status: Expired due to Term

• Current Assignee: Chrysler Group LLC (Stellantis NV)
• Original Assignee: Chrysler Corporation (Stellantis NV)
• Inventors: Sjoberg, Roy H., Rao, Nippani R.
• Primary Examiner(s): WITHERS, JAMES
• Application Number:
  US08/334,900
• Time in Patent Office: 624 Days
• Field of Search: 428/229, 428/257, 428/902, 139/420 R, 139/425 R, 139/420 A
• US Class Current: 442/217
• CPC Class Codes: D03D 15/267 Glass
• CPC Class Codes: D03D 15/275 Carbon fibres
• CPC Class Codes: D03D 15/283 synthetic polymer-based, e.g. polyamide or polyester fibres cellulose-based artificial fibres D03D15/225
• CPC Class Codes: D03D 15/46 Flat yarns, e.g. tapes or films
• CPC Class Codes: D03D 15/573 Tensile strength
• CPC Class Codes: D10B 2101/06 Glass
• CPC Class Codes: D10B 2101/12 Carbon; Pitch
• CPC Class Codes: D10B 2331/021 aromatic polyamides, e.g. aramides
• CPC Class Codes: D10B 2401/041 thermoplastic; thermosetting
• CPC Class Codes: D10B 2401/062 stiff, shape retention
• CPC Class Codes: D10B 2401/063 high strength
• CPC Class Codes: D10B 2505/02 Reinforcing materials; Prepregs
• CPC Class Codes: Y10S 428/902 High modulus filament or fiber
• CPC Class Codes: Y10T 442/3293 Warp and weft are identical and contain at least two chemically different strand materials
• CPC Class Codes: Y10T 442/3309 Woven fabric contains inorganic strand material
• CPC Class Codes: Y10T 442/339 Metal or metal-coated strand

Abstract

An improved reinforcing fabric that is woven of alternating fiber yarns of polyaramid, carbon and glass in both the warp and the weft directions such that a fabric of superior impact, tensile, compression and flexural properties is obtained.

Claims

1. A fabric comprising a single ply having woven warp and weft yarns, said warp comprises an organic fiber yarn and at least two inorganic fiber yarns in an alternating order, said weft comprises an organic fiber yarn and at least two inorganic fiber yarns in an alternating order, whereas the alternating order of said yarns in said warp and said weft are substantially the same, wherein said organic fiber is a polyaramid fiber and said at least two inorganic fibers comprise nickel coated carbon fiber and glass fiber.

2. A fabric according to claim 1, wherein said at least two inorganic fiber yarns further comprise carbon fibers in said warp and weft directions.

3. A fabric reinforced polymeric member made by a molding method comprising:

a single ply fabric having woven warp and weft yarns, said warp comprises an organic fiber yarn and at least two inorganic fiber yarns in an alternating order, said weft comprises an organic fiber yarn and at least two inorganic fiber yarns in an alternating order, whereas the alternating order of said yarns in said warp and said weft are substantially the same, wherein said organic fiber is a polyaramid fiber and said at least two inorganic fibers comprises nickel coated carbon fiber and glass fiber; and

a polymeric resin material encapsulating said fabric.

4. A fabric reinforced polymeric member according to claim 3, wherein said polymeric resin material is selected from the group consisting of polyester, epoxy and vinyl ester resin materials.