Title:
グラフト化パラ−アラミド繊維および製造方法
Document Type and Number:
Japanese Patent JP6722106
Kind Code:
B2
Abstract:
A method of making a fiber comprised of poly(p-phenylene terephthalamide) having monomer groups grafted onto the fiber surface, the method comprising the steps of (i) providing a fiber of poly(p-phenylene terephthalamide) that has been dried to remove adsorbed moisture, (ii) treating the fiber, in a non-polar solvent that will not dissolve the fiber, with a phosphazene base that exhibits a pKa in dimethylsulfoxide of at least 21 so as to generate anions at the amide sites on the surface of the poly(p-phenylene terephthalamide) fiber, (iii) washing the base-activated fiber with an aprotic solvent, (iv) grafting a monomer onto the anion sites so as to introduce reactive functional groups onto the surface of the poly(p-phenylene terephthalamide) fiber, and (v) washing the grafted fiber of step (iv) with a protic solvent to extract any residual base compounds and grafting agents that are unbound to the surface of the fibers.
Inventors:
Teesley Mark F
Application Number:
JP2016546987A
Publication Date:
July 15, 2020
Filing Date:
January 13, 2015
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
D06M14/16; D06M13/44; D06M15/356; D06M15/693; D21H13/26
Domestic Patent References:
| JP2017503935A | ||||
| JP2002527634A | ||||
| JP7501840A |
Foreign References:
| US6045907 |
Attorney, Agent or Firm:
Takaki Nishijima
Disciple Maru Ken
Shinichiro Tanaka
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Gen Tashiro
Disciple Maru Ken
Shinichiro Tanaka
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Gen Tashiro