21.
    发明专利
    未知

    公开(公告)号:AT150040T

    公开(公告)日:1997-03-15

    申请号:AT93108738

    申请日:1993-06-01

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of elastic, cellular or compact elastomers containing bonded urethane groups or urethane and urea groups, preferably elastomer mouldings, in particular airbag covers, by reacting a) at least one organic and/or modified organic polyisocyanate with b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, c) at least one N-perethoxylated polyoxyalkylene-polyamine and d) low-molecular-weight chain extenders and/or crosslinking agents, in the presence or absence of e) catalysts, f) auxiliaries and g) blowing agents, in a mould.o

    22.
    发明专利
    未知

    公开(公告)号:ES2076283T3

    公开(公告)日:1995-11-01

    申请号:ES90123847

    申请日:1990-12-11

    Applicant: BASF AG

    Abstract: The invention relates to a process for the production of elastic, compact or cellular mouldings based on elastomers containing bonded N-benzylurea groups, by reacting …… a) at least one organic and/or modified organic polyisocyanate with … b) N-benzylpolyoxyalkylenepolyamines or mixtures of N-benzylpolyoxyalkylenepolyamines and polyoxyalkylenepolyamines containing 2 to 4 primary amino groups and … c) at least one alkyl-substituted aromatic polyamine having a molecular weight of up to 500, in the presence or absence of … d) catalysts and optionally … e) blowing agents, … f) assistants and/or … g) additives, … and to the N-benzylpolyoxyalkylenepolyamines and mixtures of N-benzylpolyoxyalkylenepolyamines and polyoxyalkylenepolyamines containing 2 to 4 primary amino groups which can be used for this purpose, and to the elastomers prepared.

    23.
    发明专利
    未知

    公开(公告)号:DE59007635D1

    公开(公告)日:1994-12-08

    申请号:DE59007635

    申请日:1990-12-11

    Applicant: BASF AG

    Abstract: The invention relates to a process for the production of elastic, compact or cellular moldings based on elastomers containing N-substituted urea and amide groups in bound form, by reacting a) one or more organic and/or modified organic polyisocyanate with b) a polyazomethine-containing polyoxyalkylene-polyamine mixture (b) which contains: bi) one or more polyoxyalkylene-polyaldimine and/or polyketimine, bii) one or more polyoxyalkylene-polyamine containing terminal secondary amino groups, and, if desired, biii) one or more polyoxyalkylene-polyamine containing terminal primary amino groups and c) one or more alkyl-substituted aromatic polyamine having a molcular weight of up to 500, in the presence or absence of d) catalyst, and, if appropriate, e) blowing agents, f) auxiliaries and/or g) additives, to polyazomethine containing polyoxyalkylene - polyamine mixtures which can be used for this purpose and to the prepared elastomers.

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