Process for the production of fibrous structures

Details Process for the production of fibrous structures Process for the production of fibrous structures

1978-06-12

1981-04-07

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By extrusion spraying or gravity fall through orifice

264518, 525931, B29C 600

Patent

active

042605652

ABSTRACT:
Polymeric material in the form of fibrids is produced by preparing (1) a homogeneous liquid phase of a first polymeric material and solvent and (2) a second phase of other polymeric material which is incompatible with the first polymeric material and solvent. Phases (1) and (2) are mixed together in such proportions that the quantity by weight of the first polymeric material is greater than that of the second polymeric material in the mixture. The mixture is furnished with sufficient energy to render it flashable and is then subjected to a flash-spinning so that polymeric material in the form of fibrids is produced and those fibrids are thereafter collected.

REFERENCES:
patent: 3227794 (1966-01-01), Anderson et al.
patent: 3730918 (1973-05-01), Teti et al.
patent: 3770856 (1973-11-01), Ueki et al.
patent: 3808091 (1974-04-01), Aoki et al.
patent: 3902957 (1975-09-01), Kozlowski
patent: 3920508 (1975-11-01), Yonemori
patent: 3995001 (1976-11-01), Vroomans et al.

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