| (19) |
 |
|
(11) |
EP 0 244 388 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
23.08.1989 Bulletin 1989/34 |
| (43) |
Date of publication A2: |
|
04.11.1987 Bulletin 1987/45 |
| (22) |
Date of filing: 02.04.1987 |
|
| (51) |
International Patent Classification (IPC)4: D01F 6/18 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT LI NL |
| (30) |
Priority: |
03.04.1986 US 847991
|
| (71) |
Applicant: Monsanto Company |
|
St. Louis
Missouri 63167-7020 (US) |
|
| (72) |
Inventor: |
|
- Bach, Hartwig Christian
Pensacola
Florida 32514 (US)
|
| (74) |
Representative: Ernst, Hubert et al |
|
Monsanto Services International S.A.
Avenue de Tervuren 270/272
1150 Bruxelles
1150 Bruxelles (BE) |
|
| |
|
| (54) |
Acrylic fibers having superior abrasion/fatigue resistance |
(57) Acrylic fibers are provided having superior abrasion resistance and flex fatigue
properties as well as other properties desirable for end use applications in fabrics
where wear performance properties are important, such as socks. The fibers may be
made by a wet spinning process in which the spinbath consists of dimethylformamide
and water where the concentration of the dimethylformamide is in the range of 72 to
84% by weight.