22.
    发明专利
    未知

    公开(公告)号:AT332327T

    公开(公告)日:2006-07-15

    申请号:AT03720432

    申请日:2003-04-08

    Applicant: BASF AG

    Abstract: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.

    23.
    发明专利
    未知

    公开(公告)号:BR0308820A

    公开(公告)日:2005-01-04

    申请号:BR0308820

    申请日:2003-04-08

    Applicant: BASF AG

    Abstract: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.

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