Process for the production of ultra-fine polymeric fibers

Details Process for the production of ultra-fine polymeric fibers Process for the production of ultra-fine polymeric fibers

1991-04-05

1992-11-17

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

264 37, 264 85, 264140, 264143, 2642106, 2642108, 264211, 26421116, 264344, 264DIG69, D01D 526, D01F 1304, D01G 104

Patent

active

051641321

ABSTRACT:
Ultra-fine polymeric fibers are produced from various polymeric materials by mixing with thermoplastic poly(vinyl alcohol) and extruding the mixture through a die followed by further orientation. The poly(vinyl alcohol) is extracted to yield liberated ultra-fine polymeric fibers. The polymer utilized can include post-consumer polymer waste.

REFERENCES:
patent: 3097991 (1963-07-01), Miller et al.
patent: 3099067 (1963-07-01), Merriam et al.
patent: 3382305 (1968-05-01), Breen
patent: 3716614 (1973-02-01), Okamato et al.
patent: 3855056 (1974-12-01), Maeda et al.
patent: 3914501 (1975-10-01), Miller et al.
patent: 4278623 (1981-07-01), Niegisch
"Additive Improves Properties of Scrap PP/PS Blends," D. R. Paul, et al., Modern Plastics, Dec. 1981, p. 60.

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