Extremely fine polyphenylene sulphide fibres

Details Extremely fine polyphenylene sulphide fibres Extremely fine polyphenylene sulphide fibres

1989-03-22

1991-12-24

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

264 14, 26421112, 26421113, 26421114, 428293, 428296, 428373, 428903, D04H 158, D04H 104, D02G 300, B29C 4788

Patent

active

050751611

ABSTRACT:
Fibres, fibre webs or fibre aggregates made of polyphenylene sulphide (PPS) or of mixtures of PPS with other polymers are produced by a melt-spinning process where the melt filaments are drawn out and cooled down to below the melt temperature by a gaseous medium flowing essentially parallel thereto at sonic or supersonic speed, this simultaneous deformation and cooling giving rise to amorphous fine or extremely fine fibres (17) of finite length which are deposited to form a fibre web or fibre aggregate.

REFERENCES:
patent: 4048364 (1977-09-01), Harding et al.
patent: 4380570 (1983-04-01), Schwarz
patent: 4399084 (1983-08-01), Sagawa et al.
patent: 4454189 (1984-06-01), Fukata
patent: 4772421 (1988-09-01), Ikenaga et al.
patent: 4937020 (1990-06-01), Wagner et al.

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