Porous thermoformable heat sealable nonwoven fabric

Details Porous thermoformable heat sealable nonwoven fabric Porous thermoformable heat sealable nonwoven fabric

1987-11-06

1989-05-16

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

34 9, 2065241, 252 90, 383102, 383105, 427242, 428 361, 428288, 428296, 428359, 428373, 428374, 428395, 428401, C11D 1704, D04H 154, D04H 174

Patent

active

048309044

ABSTRACT:
A porous thermoformable heat sealable nonwoven fabric that is constructed by carding a bicomponent polymeric fiber and then heating the resulting fibrous web to cause bonding. The polymeric components of the bicomponent fiber have crystalline melting points that differ by at least 30.degree. C. The bicomponent fiber has a staple length ranging from 1.5" to 3.0" and a staple elongation-to-break of at least 30%.

REFERENCES:
patent: 4259373 (1981-03-01), Demessemaekers et al.
patent: 4421813 (1983-12-01), Athey
patent: 4454196 (1984-06-01), Iohara et al.
patent: 4525404 (1985-06-01), Matsui et al.
patent: 4536440 (1985-08-01), Berg
patent: 4547420 (1985-10-01), Krueger et al.
patent: 4659496 (1987-04-01), Klemm et al.

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