C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 11/06 (2006.01) C08L 19/00 (2006.01)
Patent
CA 2732691
The invention relates to a process for covering rubber particles with a continuous functional layer of polymeric nature, characterized by the use of a rotating drum with variable speed drive allowing for a progressive reduction of the speed and a pre-blend of a setting and filmiflable reactive fluid comprising a liquid resin selected from alkyd resins, polyvinyl chloride resin, urethane alkyd resins, polyurethane-urea resins and reactive polyester resins. The invention also relates to covered granulates obtained by this process.
L'invention concerne un procédé d'enrobage de particules de caoutchouc dans une couche fonctionnelle continue de nature polymère, caractérisé par lutilisation dun tambour rotatif à commande de vitesse variable permettant une réduction progressive de la vitesse et un prémélange dun fluide réactif durcissant et filmogène comprenant une résine liquide choisie parmi les résines alkydes, la résine de polychlorure de vinyle, les résines uréthanique alkydes, et les résines réactives de polyester. Linvention concerne également des granulés enrobés obtenus par ce procédé.
Afonso Veloso Isabel Rute
Bordado Joao Carlos Moura
Fonseca Amaro Mariana
Guilherme Silva Candeias Marta Sofia
Valente Mendes Raposeiro Ines
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Instituto Superior Tecnico
Recipneu-Empresa Naacional de Reciclagem de Pneus Lda
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