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    1.
    发明专利
    失效

    公开(公告)号：JPH05247339A

    公开(公告)日：1993-09-24

    申请号：JP31988892

    申请日：1992-11-30

    Applicant: BASF AG

    Inventor： PEETAA HORUN ,  URURITSUHI MIYURAA ,  BUORUFUGANGU HERUDERITSUHI ,  RUDORUFU TADEI ,  DEIITAA TEINTERUNOTO ,  RUUTOBUIHI SHIYUUSUTAA

    IPC: B65D1/12 ,  B65D6/14 ,  C08G18/08 ,  C08G18/10 ,  C08G18/12 ,  C08G18/66 ,  C08J9/00 ,  C08J9/02 ,  C08J9/34 ,  C08K3/04 ,  C08K3/36 ,  C08K7/24 ,  C08L75/00

    Abstract: The invention relates to a process for the preparation of chlorofluorocarbon-free (CFC-free), elastomeric, semi-rigid or rigid mouldings containing urethane groups or urethane and urea groups and having a cellular core and a compacted peripheral zone with an essentially pore-free, smooth surface, by reacting …… a) organic and/or modified organic polyisocyanates with … b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms and optionally … c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence of … d) blowing agents, … e) catalysts, … f) at least one microporous activated charcoal and/or a microporous carbon molecular sieve, which preferably has a mean pore diameter with more than 40% in the range from 0.3 to 3 nm, a pore volume of from 0.20 to 1.4 ml/g and a BET surface area of from 500 to 2500 m /g or greater, and optionally further additives and … g) auxiliaries, … in a closed mould with compaction.

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