C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 69/00 (2006.01) C08G 69/04 (2006.01) C08G 69/08 (2006.01) C08G 69/16 (2006.01) C08G 69/20 (2006.01)
Patent
CA 2481456
The invention relates to a method for producing a polyamide by converting a mixture containing a monomer that comprises a nitrile group and at least one additional functional group that is capable of forming a carboxamide group, in addition to water in the presence of titanium dioxide, which acts as the catalyst. Said method is characterised in that the titanium dioxide has a BET surface area ranging between 5 and 35 m2/g, determined by means of a volumetric process according to a multipoint method, as per the German standard DIN 66 131.
L'invention concerne un procédé de production d'un polyamide, par transformation d'un mélange comprenant un monomère qui comporte un groupe nitrile et au moins un autre groupe fonctionnel pouvant former un carboxamide, ainsi que de l'eau, en présence de dioxyde de titane, qui sert de catalyseur. L'invention est caractérisée en ce que ce dioxyde de titane comprend une surface BET comprise entre 5 et 35 m?2¿/g, qui est déterminée au moyen du procédé volumétrique, selon la technique des points multiples, conformément à la norme allemande DIN 66 131.
Benisch Christoph
Hahn Thilo
Winterling Helmut
Basf Aktiengesellschaft
Robic
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