Title:
ポリオレフィン繊維を半製品または最終用途製品に加工する方法、これにより得ることのできる半製品または最終用途製品、医療用途におけるこの半製品もしくは最終用途製品の使用、この半製品もしくは最終用途製品を含む医療製品、或いは、組成物の、ポリオレフィン繊維を半製品もしくは最終用途製品に加工する方法における紡糸仕上げ剤としての使用
Document Type and Number:
Japanese Patent JP4960431
Kind Code:
B2
Abstract:
The invention relates to a process for making a multi-filament polyethylene yarn via a gel-spinning process, Wherein a spin finish is applied at least once in an amount of 0.1-10 mass % based on the filament, to a filament that contains less than 50 mass % of solvent; the spin finish comprising at least 95 mass % of at least one volatile compound having a boiling point at 0.1 MPa pressure of from 30 to 250° C.; and the spin finish is subsequently removed by exposing the filament to a temperature of below the melting temperature of the filament. With this process a yarn is made that has a very low amount of residues on the surface of the fibres, without the need for a washing or extraction step, showing good mechanical properties, and very suited for e.g. biomedical applications. The invention further relates to a process for converting polyolefin fibres into a semi-finished or end-use product. The invention also concerns a polyethylene yarn and a semi-finished or end-use product obtainable by said processes, as well as to the use of thereof in biomedical applications.
Inventors:
Sumo, leo
Symlink, joseph, arnold, paul, maria
Niraba, Leonard, Joseph, Arnold
Symlink, joseph, arnold, paul, maria
Niraba, Leonard, Joseph, Arnold
Application Number:
JP2009261150A
Publication Date:
June 27, 2012
Filing Date:
November 16, 2009
Export Citation:
Assignee:
DSM IP ASSETS B.V.
International Classes:
D01F6/04; D01F11/06
Domestic Patent References:
| JP60052647A | ||||
| JP61289111A | ||||
| JP8049166A | ||||
| JP2001504555A | ||||
| JP2001192929A |
Attorney, Agent or Firm:
Yuichi Yamada
Masakazu Noda
Yoshinori Shimizu
Ikeda adult
Masakazu Noda
Yoshinori Shimizu
Ikeda adult