ADHESION PROMOTER FOR ADHESIVE COMPOSITES COMPOSED OF PLASTIC AND OF A POLYISOCYANATE POLYADDITION PRODUCT

    公开(公告)号:CA2936765A1

    公开(公告)日:2010-07-01

    申请号:CA2936765

    申请日:2009-12-10

    Applicant: BASF SE

    Abstract: The present invention relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained via mixing of (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts and optionally additional products to give a reaction mixture and converting the reaction mixture to a polyisocyanate polyaddition product, where the compounds (b) comprise a polyester polyalcohol as adhesion promoter, capable of production via polycondensation of an acid component and one or more low-molecular-weight diols whose molar mass is less than 500 g/mol, in excess, where the acid component comprises from 83 to 97 mol % of adipic acid and from 3 to 17 mol % of phthalic acid, isophthalic acid, and/or terephthalic acid. The present invention also relates to components in the fitting-out or aircraft, of vehicles, or of buildings, and to insulation comprising this type of composite element.

    ADHESION PROMOTER FOR ADHESIVE COMPOSITES COMPOSED OF PLASTIC AND OF A POLYISOCYANATE POLYADDITION PRODUCT

    公开(公告)号:CA2936765C

    公开(公告)日:2018-09-25

    申请号:CA2936765

    申请日:2009-12-10

    Applicant: BASF SE

    Abstract: The present invention concerns a process for the production of composite elements comprising plastic, adhering to which there is a polyisocyanate polyaddition product, where isocyanate is mixed with compounds having groups reactive toward isocyanates, catalysts, if appropriate, blowing agent, and if appropriate, further additives to give a reaction mixture and the reaction mixture is permitted to complete its reaction to give the polyisocyanate polyaddition product, where the compounds having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, capable of production via polycondensation of an acid component and of one or more low-molecular-weight diols whose molar mass is less than 500 g/mol, in excess, where the low-molecular-weight diols comprise at least 5 to 66 mol% of 1,3-propanediol, based on the total amount of the diol.

    COMPACT ELASTOMER MOLDED PARTS ON THE BASIS OF POLYURETHANE

    公开(公告)号:CA2953234A1

    公开(公告)日:2015-12-10

    申请号:CA2953234

    申请日:2015-05-22

    Applicant: BASF SE

    Abstract: The present invention relates to a method for producing pore-free polyurethane molded parts having a Shore D hardness in accordance with DIN 53505 of 60 or above, by mixing (a) polyester diol having an OH number of 20 to 100 mg KOH/g and (b) chain extenders consisting of diol having a molecular weight of less than 300 g/mol with (c) isocyanate prepolymers, obtainable by reacting diisocyante with polyesterols having a functionality of 1.95 to 2.2 and an OH number of 20 to 200 mg KOH/g, and optionally (d) catalysts, (e) emulsifier and (f) other additives to a reaction mixture, applying said reaction mixture into a mold and hardening to a polyurethane elastomer. The present invention further relates to polyurethane elastomer molded parts obtainable by such method and the use of said polyurethane molded parts as trim part for utility vehicles, vehicle body components in vehicle construction or as a trim for a machine system.

    Verfahren zur Herstellung von kompakten transparenten Polyurethanen

    公开(公告)号:DE102009047214A1

    公开(公告)日:2010-09-09

    申请号:DE102009047214

    申请日:2009-11-27

    Applicant: BASF SE

    Abstract: Gegenstand der Erfindung ist ein Verfahren zur Herstellung von kompakten transparenten Polyurethanen durch Umsetzung von a) aliphatischen Polyisocyanaten mit b) Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen, dadurch gekennzeichnet, dass als aliphatische Polyisocyanate a) eine Mischung aus trimerisiertem HDI und trimerisiertem IPDI und als Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen b) mindestens einen Polyetheralkohol, hergestellt durch Umsetzung von Alkylenoxiden mit Verbindungen mit mindestens zwei mit Alkylenoxiden reaktiven Wasserstoffatomen eingesetzt wird und die Komponente b) eine Hydroxylzahl im Bereich zwischen 350 und 950 mgKOH/g aufweist.

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