Recherche dans les collections de brevets nationales et internationales
Une partie du contenu de cette demande n'est pas disponible pour le moment.
Si cette situation persiste, contactez-nous auObservations et contact
1. (WO1993018223) PROCEDE POUR TRAITER UN SUBSTRAT AVEC UN MATERIAU SUPERABSORBANT
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

Claims

1. A process for treating a substrate, namely a fibre or a fibrous product, which is not an aramid fibre, with a superabsorbent material, by applying to the surface of the substrate a layer of a water-in-oil emulsion which contains a superabsorbent material in its aqueous phase, and subsequently wholly or partially removing the liquid constituents of the emulsion from the substrate, cahracterised in that there is applied to the substrate, calculated on its dry weight, 0,3 to 40 wt.% of the superabsorbent material.

2. A process according to claim 1-, characterised in that there is applied to the substrate, calculated on its dry weight, 0,5 to 20 wt.% of the superabsorbent material.

3. A process according to claim 2, characterised in- that there is applied to the substrate, calculated on its dry weight, 0,5 to 10 wt.% of the superabsorbent material.

4. A process according to one or more of claims 1-3, characterised in that the water-in-oil emulsion contains an emulsifier having a HLB-value between 3 and 6.

5. A process according to one or more of claims 1-4, characterised in that the water-in-oil emulsion contains 20-80 wt.%, calculated on the undiluted emulsion, of a stabiliser having an HLB-value of less than 5.

6. A process according to one or more of claims 1-5, characterised in that the substrate to be treated is made up wholly or in part of one or more of the following: polyester, aliphatic polyamide, cellulose, polyolefin, polyacrylonitrile, carbon, glass, and metal .

7. A process according to one or more of claims 1-6, characterised in that the substrate to be treated is made up wholly or substanti lly of polyethylene terephthalate. "

8. A process according to one or more of claims 1-6, characterised in that the substrate to be treated is made up wholly or substantially of nylon-6 and/or nylon-6,6.

9. A process according to one or more of claims 1-6, characterised in that the substrate to be treated is made up wholly or substantially of regenerated cellulose.

10. A process according to one or more of claims 1-6, characterised in that the substrate to be treated is a bi component fibre or a product made of a bi component fibre.

11. A process according to one or more of claims 1-6, characterised in that the substrate to be treated is a non-woven.

12. A process according to claim 11, characterised in that the substrate to be treated is a non-woven built up of bi component fibres of the sheath-core type.

13. A process according to claim 12, characterised in that the bicomponent fibres are composed of a sheath of nylon-6 and a core of polyethylene terephthalate.

14. Use of the product manufactured using the process according to one or more of claims 1-13 as reinforcing member and/or water- blocking and/or water-absorbing means.