Selfbonded nonwoven fabrics

Details Selfbonded nonwoven fabrics Selfbonded nonwoven fabrics

1979-12-26

1981-08-25

Kendell, Lorraine T.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156181, 156290, 156296, 428373, 428288, 428296, B32B 3100, D02G 300, D04H 308

Patent

active

042857481

ABSTRACT:
A selfbonded nonwoven fabric comprising at least 70 weight percent of sheath/core heterofilaments having a core of isotactic polypropylene in which the sheaths are high density polyethylene in an amount of 5 to 30 weight percent of the heterofilaments, and method of preparation. The fabrics have outstanding strength, fatigue resistance, and tear resistance and are eminently suitable for civil engineering applications such as unpaved road underlay material.

REFERENCES:
patent: 3231650 (1966-01-01), Findlay et al.
patent: 3511747 (1970-05-01), Davies
patent: 3536802 (1970-10-01), Uraya et al.
patent: 3595731 (1971-07-01), Davies et al.

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