Microcapsules, their use and processes for their manufacture

Details Microcapsules, their use and processes for their manufacture Microcapsules, their use and processes for their manufacture

B - Operations, Transporting

01

J

B01J 13/14 (2006.01) D06M 23/12 (2006.01)

Patent

CA 2669239

A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

L'invention concerne une microcapsule qui comprend A) un noyau contenant un liquide ou une cire hydrophobe, B) une enveloppe polymère comprenant a) un polymère formé à partir d'un mélange de monomères contenant: i) 1 à 95% en poids d'un monomère monofonctionnel hydrophobe éthyléniquement insaturé, ii) 5 à 99% en poids d'un monomère polyfonctionnel éthyléniquement insaturé, et iii) 0 à 60% en poids d'autres monomères monofonctionnels, et b) un autre polymère hydrophobe insoluble dans le liquide ou la cire hydrophobe. Cette invention concerne également un procédé de fabrication de particules et l'utilisation de ces particules dans des articles, tels que des tissus, et des compositions de revêtement, notamment des textiles.

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