Particle-loaded microfiber sheet product and respirators made th

Details Particle-loaded microfiber sheet product and respirators made th Particle-loaded microfiber sheet product and respirators made th

1974-12-06

1976-07-27

Kamm, William E.

Surgery

Truss

Pad

428328, A62B 2302

Patent

active

039713733

ABSTRACT:
A self-supporting durable flexible conformable low-pressure-drop porous sheet product that contains a uniform three-dimensional arrangement of discrete solid particles. This sheet product comprises, in addition to the particles, a web of melt-blown microfibers in which the particles are uniformly dispersed. The particles are physically held in the web, even though there is only point contact between the microfibers and the particles, whereby the full surface of the particles is available for interaction with a medium to which the sheet product is exposed. The sheet product is especially useful in respirators in which, for example, the sheet product is shaped as a cup-like member adapted to fit over the mouth and nose of a person.

REFERENCES:
patent: 3368326 (1968-02-01), Hervert
patent: 3620214 (1971-11-01), Thackston
patent: 3801400 (1974-04-01), Vogt et al.

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