| (19) |
 |
|
(11) |
EP 0 328 822 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
18.10.1989 Bulletin 1989/42 |
| (43) |
Date of publication A2: |
|
23.08.1989 Bulletin 1989/34 |
| (22) |
Date of filing: 14.12.1988 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB GR IT LI LU NL SE |
| (30) |
Priority: |
21.12.1987 US 136033
06.12.1988 US 280406
06.12.1988 US 280405
06.12.1988 US 280404
|
| (71) |
Applicant: E.I. DU PONT DE NEMOURS AND COMPANY |
|
Wilmington
Delaware 19898 (US) |
|
| (72) |
Inventors: |
|
- Fitzgerald, Patrick Henry
Pittman
New Jersey 08071 (US)
- Rao, Nandakumar Seshagiri
Hockessin
Delaware 19707 (US)
- Vinod, Yashavant Vinayak
Hockessin
Delaware 19707 (US)
- Allender, Jeffrey Randolph
Wilmington
Delaware 19808 (US)
|
| (74) |
Representative: Woodcraft, David Charles et al |
|
BROOKES & MARTIN
High Holborn House
52/54 High Holborn
London, WC1V 6SE
London, WC1V 6SE (GB) |
|
| |
|
| (54) |
Stain-resistant agents for textiles |
(57) Stain-resistant compositions comprising sulfonated phenol-formaldehyde condensation
products and polymers of maleic anhydride and unsatured aromatic monomers e.g. styrene
polyamide textile substrates treated with the same, and processes for their preparation.
The stain-resistant compositions and substrates possess improved stain resistance
but do not suffer from yellowing to the extent that previously known materials do.