Para-type aromatic polyamide short fibers

Details Para-type aromatic polyamide short fibers Para-type aromatic polyamide short fibers

D - Textiles, Paper

06

M

D06M 13/292 (2006.01)

Patent

CA 2583211

Short fibers of a para-aromatic polyamide which are obtained by adhering C12- alcohol/phosphoric acid ester alkali metal salts having a monoester-salt molar fraction of 45-70 mol% and a diester-salt molar fraction of 10-40 mol% to short fibers of a para-aromatic polyamide in an amount of 0.05-1.0 wt.% based on the fibers. The short fibers thus treated are excellent in collectibility and antistatic properties. The fibers have so low tack that they are less apt to wind around a roller, etc., and are reduced in scum generation. They have excellent spinnability.

L~invention concerne des fibres courtes d~un polyamide para-aromatique obtenues en faisant adhérer, à des fibres courtes d~un polyamide para-aromatique, des sels de métal alcalin d~un ester de l~acide phosphorique et d~un alcool en C12 ayant une fraction molaire monoester-sel de 45 à 70 % en moles et une fraction molaire diester-sel de 10 à 40 % en moles, en une quantité allant de 0,05 à 1,0 % en poids, par rapport au poids de fibres. Les fibres courtes ainsi traitées ont d~excellentes propriétés antistatiques et d~aptitude au ramassage. Les fibres sont si faiblement adhésives qu~elles sont moins susceptibles de s~enrouler autour d~un rouleau, etc., et qu~elles génèrent moins d~écume. Elles ont une excellente aptitude au filage.

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