1.
    发明专利
    未知

    公开(公告)号:DE3624924A1

    公开(公告)日:1988-01-28

    申请号:DE3624924

    申请日:1986-07-23

    Applicant: BASF AG

    Abstract: A storage-stable, moisture-cured, single-component polyurethane system comprising (a) a polyurethane prepolymer having an NCO content of from about 1 to 10 weight percent prepared by the reaction of higher molecular polyols and aromatic polyisocyanates, (b) at least one polyaldimine having the structural formula in which R is a multivalent linear or branched or cyclic hydrocarbon radical, which optionally is interrupted by alkylene-, sulfonyl-, thio- and/or oxy groups as bridge members, or is a multivalent polyoxyalkylene radical, (c) optionally an aromatic and/or aliphatic carboxylic acid or arylsulfonic acid, and (d) optionally auxiliaries and/or additives. The polyurethane systems are useful as sealing, casting, patching, cementing and coating compounds.

    3.
    发明专利
    未知

    公开(公告)号:ES2075012T3

    公开(公告)日:1995-10-01

    申请号:ES89110212

    申请日:1989-06-06

    Applicant: BASF AG

    Abstract: Process for the continuous preparation of linear thermoplastic polyesters, in which a) a transesterification or esterification product of aliphatic and/or aromatic dicarboxylic acids having a molecular weight /l, and in step c), the precondensate is further condensed at a temperature of from 240 to 290 DEG C under a pressure of from 0.5 to 20 mm Hg and a residence time of from 10 to 40 minutes, giving polyesters which are suitable for granulation.

    4.
    发明专利
    未知

    公开(公告)号:DE3241450A1

    公开(公告)日:1984-05-10

    申请号:DE3241450

    申请日:1982-11-10

    Applicant: BASF AG

    Abstract: Diphenylmethane diisocyanate-based liquid polyisocyanate mixtures containing urethane groups and having an isocyanate content of from 12 to 30 percent by weight are obtained by reaction of a polyoxypropylene polyoxyethylene polyol containing 5 to 30 percent by weight of oxyethylene with diphenylmethane diisocyanate-based isocyanates. These polyisocyanate mixtures are storage stable at low temperature and yield flexible polyurethane foams having improved mechanical properties.

    5.
    发明专利
    未知

    公开(公告)号:DE58909403D1

    公开(公告)日:1995-10-05

    申请号:DE58909403

    申请日:1989-06-06

    Applicant: BASF AG

    Abstract: Process for the continuous preparation of linear thermoplastic polyesters, in which a) a transesterification or esterification product of aliphatic and/or aromatic dicarboxylic acids having a molecular weight /l, and in step c), the precondensate is further condensed at a temperature of from 240 to 290 DEG C under a pressure of from 0.5 to 20 mm Hg and a residence time of from 10 to 40 minutes, giving polyesters which are suitable for granulation.

    8.
    发明专利
    未知

    公开(公告)号:DE3485422D1

    公开(公告)日:1992-02-20

    申请号:DE3485422

    申请日:1984-02-02

    Applicant: BASF AG

    Abstract: Isocyanurate-contg. compsn. (I), liq. at room temp., with NCO content 23-31%, obtd. by trimerising mixt. of 80-30 wt.%, on total wt. of 4,4'-diphenylmethanedi-isocyanate and 20-70 wt.%, on total wt., of 2,4'-diphenyl methanedi-isocyanate in presence of trimerisation catalyst (II). (I) is prepd. by trimerisation at 0-160 deg.C, followed opt. by cooling and opt. by deactivation of (II).

    10.
    发明专利
    未知

    公开(公告)号:DE3820362A1

    公开(公告)日:1990-03-15

    申请号:DE3820362

    申请日:1988-06-15

    Applicant: BASF AG

    Abstract: Process for the continuous preparation of linear thermoplastic polyesters, in which a) a transesterification or esterification product of aliphatic and/or aromatic dicarboxylic acids having a molecular weight /l, and in step c), the precondensate is further condensed at a temperature of from 240 to 290 DEG C under a pressure of from 0.5 to 20 mm Hg and a residence time of from 10 to 40 minutes, giving polyesters which are suitable for granulation.

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