| (19) |
 |
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(11) |
EP 0 310 171 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
10.01.1990 Bulletin 1990/02 |
| (43) |
Date of publication A2: |
|
05.04.1989 Bulletin 1989/14 |
| (22) |
Date of filing: 15.09.1988 |
|
| (51) |
International Patent Classification (IPC)4: D01F 6/30 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
30.09.1987 GB 8722967
30.03.1988 US 175024
|
| (71) |
Applicant: SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V. |
|
NL-2596 HR Den Haag (NL) |
|
| (72) |
Inventors: |
|
- Beyen, Johan Maria
NL-1031 CM Amsterdam (NL)
- Klei, Ebel
NL-1031 CM Amsterdam (NL)
- Brown, Houston Slade
Houston
Texas 77095 (US)
- Westbrook, Paul Aldred
Houston
Texas 77083 (US)
|
|
| |
|
| (54) |
Melt-spinning process |
(57) A process for producing thermoplastic polymer fibres by melt-spinning, characterized
in that an alternating copolymer of an olefinically unsaturated compound and carbon
monoxide, having a molecular weight of at least 2000, is melt-spun at a temperature
of at least (T+20) K and the fibre is subsequently stretched at a temperature of at
most (T-10) K, in which T is the crystalline melting point of the polymer. The fibres
thus spun are suitable as tyre reinforcements.