Nonwoven fabrics

Details Nonwoven fabrics Nonwoven fabrics

1991-10-10

1992-10-20

Bell, James J.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Bulk deposition of particles by differential fluid pressure

156167, 26421114, B27N 100

Patent

active

051567970

ABSTRACT:
Nonwoven fabrics are disclosed, which are produced by molding a material containing as a main component a styrene-based polymer with mainly syndiotactic configuration, in such a manner that a difference between the absolute value of heat of fusion .vertline..DELTA.Hf.vertline. and the absolute value of crystallizing enthalpy on heating .vertline..DELTA.Htcc.vertline. of the molded polymer is at least 1 cal/g. These nonwoven fabrics are excellent in heat-resistant and chemical-resistant characteristics, and are suitable for use as medical fabrics, industrial filters, battery separators and so forth.

REFERENCES:
patent: 4680353 (1987-07-01), Ishihara et al.

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