Sheets of randomly distributed continuous filaments

• US 3,341,394 A
• Filed: 12/21/1966
• Issued: 09/12/1967
• Est. Priority Date: 12/21/1966
• Status: Expired due to Term

• Current Assignee: Allison Kinney George
• Original Assignee: Allison Kinney George
• Inventors: ALLISON KINNEY GEORGE
• Application Number:
  US04/613,370
• Time in Patent Office: 265 Days
• US Class Current: 442/366
• CPC Class Codes: B29C 70/305 Spray-up of reinforcing fibres with or without matrix to form a non-coherent mat in or on a mould B29C41/365, B29C70/32, B29C70/34, B29C70/502, B29C70/508 take precedence; coating a former by spraying plastics B29C41/08
• CPC Class Codes: B29K 2105/0854 in the form of a non-woven mat
• CPC Class Codes: D04H 3/16 with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
• CPC Class Codes: Y10T 428/31797 Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31909 Next to second addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31938 Polymer of monoethylenically unsaturated hydrocarbon
• CPC Class Codes: Y10T 442/643 Including parallel strand or fiber material within the nonwoven fabric
• CPC Class Codes: Y10T 442/674 Nonwoven fabric with a preformed polymeric film or sheet

Claims

1. A SUBSTANTIALLY UNIFORMLY OPAQUE NONWOVEN SHEET OF NONPARALLEL CONTINUOUS SYNTHETIC ORGANIC FILAMENTS, THE CONTINUOUS FILAMENTS BEING RANDOMLY DISTRIBUTED THROUGHOUT SAID SHEET AND SO DISPOSED AS TO BE SUBSTANTIALLY SEPARATE AND INDEPENDENT OF EACH OTHER EXCEPT AT FILAMENT CROSS-OVER POINTS WITHIN THE SHEET, THE FILAMENT SEPARATION DISTANCES HAVING A COEFFICIENT OF VARIATION, CVFS, OF NO GREATER THAN ABOUT 100%.