| (19) |
 |
|
(11) |
EP 0 456 495 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
25.03.1992 Bulletin 1992/13 |
| (43) |
Date of publication A2: |
|
13.11.1991 Bulletin 1991/46 |
| (22) |
Date of filing: 09.05.1991 |
|
| (51) |
International Patent Classification (IPC)5: D01F 6/62 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
| (30) |
Priority: |
11.05.1990 US 523100
|
| (71) |
Applicant: HOECHST CELANESE CORPORATION |
|
Somerville, N.J. 08876 (US) |
|
| (72) |
Inventors: |
|
- Simons, F. Holmes
Charlotte,
North Carolina (US)
- Griffith, Ronald L.
Charlotte,
North Carolina (US)
|
| (74) |
Representative: De Minvielle-Devaux, Ian Benedict Peter et al |
|
CARPMAELS & RANSFORD
43, Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB) |
|
| |
|
| (54) |
A drawn polyester yarn having a high tenacity, a high initial modulus and a low shrinkage |
(57) The instant invention is directed to a drawn polyester yarn. This yarn is characterized
by an initial secant modulus greater than 150 grams per denier/100%. The yarn may
be further characterized by either a shrinkage of less than 8% or a tenacity of greater
than 7.5 grams per denier. Alternatively, the yarn is characterized by a tenacity
of at least 10 grams per denier, an initial modulus of at least 120 grams per denier/100%
and a shrinkage of less than 8%.