2.
    发明专利
    未知

    公开(公告)号:DK322886D0

    公开(公告)日:1986-07-07

    申请号:DK322886

    申请日:1986-07-07

    Applicant: BASF AG

    Abstract: Polyurethane adhesive mixtures or polyurethane adhesive solutions contain (a) a polyurethane elastomer which advantageously has a mean molecular weight of not less than 30,000 and which is prepared by reacting (i) one or more essentially linear polyesterpolyols and (ii) one or more chain extenders with (iii) a mixture of 4,4'- and 2,4'-diphenylmethane diisocyanate isomers in a weight ratio of from 60:40 to 40:60 and (b) if appropriate, additives and/or organic solvents.

    MOISTURE-CURING, STORAGE STABLE, SINGLE-COMPONENT POLYURETHANE SYSTEMS

    公开(公告)号:CA1205249A

    公开(公告)日:1986-05-27

    申请号:CA439375

    申请日:1983-10-20

    Applicant: BASF AG

    Abstract: The object of this invention is a moisture-curing, storage stable, single-component polyurethane system comprising: A. a polyurethane prepolymer with a free isocyanate content of 1 to 5 percent by weight; B. a dialdimine having the formula R¢-N=CH-C(CH3)2-CH2-O-CO-CH-(CH3)2!2 in which R is a divalent aliphatic radical with 2 to 10 carbon atoms, aliphatic radical having 4 to 10 carbon atoms and containing ether oxygen and/or lower alkylamino nitrogen atoms, cycloaliphatic radical with 6 to 15 carbon atoms or aromatic radical with 6 to 21 carbon atoms; and C. an acid catalyst selected from the group consisting of aliphatic carboxylic acids, aromatic carboxylic acids, toluenesulfonic acid, and mixtures thereof. The polyurethane systems are used as coating, sealing, casting, spackling and bonding materials.

    4.
    发明专利
    未知

    公开(公告)号:DK322886A

    公开(公告)日:1987-01-09

    申请号:DK322886

    申请日:1986-07-07

    Applicant: BASF AG

    Abstract: Polyurethane adhesive mixtures or polyurethane adhesive solutions contain (a) a polyurethane elastomer which advantageously has a mean molecular weight of not less than 30,000 and which is prepared by reacting (i) one or more essentially linear polyesterpolyols and (ii) one or more chain extenders with (iii) a mixture of 4,4'- and 2,4'-diphenylmethane diisocyanate isomers in a weight ratio of from 60:40 to 40:60 and (b) if appropriate, additives and/or organic solvents.

    5.
    发明专利
    未知

    公开(公告)号:FI862884A

    公开(公告)日:1987-01-09

    申请号:FI862884

    申请日:1986-07-08

    Applicant: BASF AG

    Abstract: Polyurethane adhesive mixtures or polyurethane adhesive solutions contain (a) a polyurethane elastomer which advantageously has a mean molecular weight of not less than 30,000 and which is prepared by reacting (i) one or more essentially linear polyesterpolyols and (ii) one or more chain extenders with (iii) a mixture of 4,4'- and 2,4'-diphenylmethane diisocyanate isomers in a weight ratio of from 60:40 to 40:60 and (b) if appropriate, additives and/or organic solvents.

    6.
    发明专利
    未知

    公开(公告)号:FI862884A0

    公开(公告)日:1986-07-08

    申请号:FI862884

    申请日:1986-07-08

    Applicant: BASF AG

    Abstract: Polyurethane adhesive mixtures or polyurethane adhesive solutions contain (a) a polyurethane elastomer which advantageously has a mean molecular weight of not less than 30,000 and which is prepared by reacting (i) one or more essentially linear polyesterpolyols and (ii) one or more chain extenders with (iii) a mixture of 4,4'- and 2,4'-diphenylmethane diisocyanate isomers in a weight ratio of from 60:40 to 40:60 and (b) if appropriate, additives and/or organic solvents.

    Flat thermoset polyurethane composite

    公开(公告)号:FR2545039A1

    公开(公告)日:1984-11-02

    申请号:FR8406647

    申请日:1984-04-27

    Applicant: BASF AG

    Abstract: Flat composite (I) 1-20 mm thick, with density 0.1-1.6g/cub.cm., flexural strength (DIN 53423) 5-60 Pa, E modulus in flexure (DIN 53457) 500-6000 Pa, impact strength (DIN 53453) 5-50 kJ/sq.m., and heat flexural resistance temp. (DIN 53424) 110-250 deg.C., comprising a cellular polyurethane (PU) thermoset having embedded 51-80 wt.%, on total wt., of a fibre-contg. flat object (II). Prodn. of (I) by (a) laying a (II) in open mould and spraying with amt. of foamable PU thermosetting mixt. having viscosity 200-2000mPa-s at 20 deg.C and gel time 15-240 seconds at 80 deg.C such that wt. ratio of (II) to foamable PU mixt. is 51-80:49-20, or laying analogously obtd. (II) sprayed with foamable PU mixt. in open mould; (b) closing mould; (c) alloying PU mixt. to foam and harden in closed mould.

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