Claims
- 1. A low density matting article consisting essentially of a plurality of continuous melt-spun synthetic polymer filaments of a diameter of about 0.1 to 0.5 mm. laid in overlapping rows of irregularly looped and intermingled filaments to form, in the aggregate, a peak and valley three-dimensional structure undulating in the longitudinal and/or transverse directions of the matting, the individual filaments in said matting being self-bonded at random points of intersection and having a number of transversely directed loops sufficient to provide a transverse strength per unit of surface weight of at least 2 Nm/g.
- 2. A matting article as claimed in claim 1 wherein the transverse strength per unit of surface weight is at least 4 Nm/g.
- 3. A matting article as claimed in claim 1 consisting essentially of nylon filaments and having a transverse strength per unit of surface weight of at least 7 Nm/g.
- 4. A matting article as claimed in claim 3 wherein the transverse strength per unit of surface weight is at least 10 Nm/g.
- 5. A matting article as claimed in claim 1 wherein the matting structure undulates in both longitudinal and transverse directions to provide a waffle-like appearance.
- 6. A matting article as claimed in claim 1 wherein the filaments have a diameter of about 0.2 to 1 mm. and the transverse strength per unit of surface weight is at least 4 Nm/g.
- 7. A matting article as claimed in claim 6 consisting essentially of polycaprolactam filaments.
- 8. A matting article as claimed in claim 1 in which the filaments are at least partly crystalline in their internal molecular structure.
- 9. A matting article as claimed in claim 1 having a density of less than 0.05 g/cm.sup.3.
- 10. A matting article as claimed in claim 1 having a density of less than 0.04 g/cm.sup.3.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2530499 |
Jul 1975 |
DEX |
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Parent Case Info
This is a division of application Ser. No. 703,277 filed July 7, 1976 now U.S. Pat. No. 4,252,590.
US Referenced Citations (22)
Divisions (1)
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Number |
Date |
Country |
Parent |
703277 |
Jul 1976 |
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