KAPSELN MIT MODIFIZIERTER OBERFLÄCHE ZUM PFROPFEN AUF FASERN

摘要

Grafting hollow/solid composite capsules on a support comprises: optionally preparing the capsules of lipophilic/hydrophilic membrane chosen as per the support's nature; functionalizing the membrane; optionally activating the functionalized capsules and/or the support by grafting reactive groups that covalently bond to reactive groups present at the support's surface and/or the functionalized capsules respectively; contacting the capsules with the support to form covalent bond between them; and recovering and rinsing the support. Independent claims are included for: (1) a polyamide capsule composite, preferably obtained by an interfacial polycondensation in inverse system and functionalized by amino groups like ethylenediamine, di-ethylenetriamine or poly(oxyalkylene) amine of formula NH 2-CH 3CH-CH 2-[O-CH 2-CH-CH 3](2.6)-NH 2 or 2-[2-(2-amino-ethoxy)-ethoxy]-ethyl amine, and activated by grafting activation compounds e.g.alpha -bromo-acrylic acid resin, adipic acid, 2,4,6-trichlorotriazine (preferred) or dichloroquinoxaline; (2) a grafted support obtained by the grafting process using the capsule; and (3) a textile comprising the grafted support.