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    Adhesivo de contacto para películas de PVC
    2.
    发明专利
    Adhesivo de contacto para películas de PVC 未知

    公开(公告)号：ES2438748T3

    公开(公告)日：2014-01-20

    申请号：ES10785442

    申请日：2010-12-06

    Applicant: BASF SE

    Inventor： CIMPEANU CARMEN-ELENA ,  BEYERS CORNELIS PETRUS ,  DRAGON ANDREE

    IPC: C09J133/08

    Abstract: Adhesivo, que contiene un polímero que puede obtenerse mediante polimerización por radicales de compuestosetilénicamente insaturados, que está constituido por (a) al menos el 50 % en peso de al menos un monómero de acrilato blando, seleccionado de acrilatos de alquiloque presentan cuando están polimerizados como homopolímeros una temperatura de transición vítrea inferior a 0ºC, (b) al menos el 1 % en peso de al menos un nitrilo etilénicamente insaturado, (c) al menos el 1 % en peso de al menos un monómero de acrilato duro, seleccionado de acrilatos de alquilo ymetacrilatos de alquilo, que respectivamente presentan cuando están polimerizados como homopolímeros unatemperatura de transición vítrea de al menos 60 ºC, (d) al menos el 0,1 % en peso de al menos un monómero de ácido etilénicamente insaturado, (e) al menos el 0,01 % en peso de al menos de un monómero con al menos dos grupos vinilo no conjugados,polimerizables, y (f) opcionalmente por otros monómeros distintos de los monómeros (a)-(e), realizándose la polimerización mediante polimerización por etapas, polimerizándose al menos una parte de los monómeros de acrilato blandos(a) en una primera etapa de polimerización y polimerizándose al menos una parte de los monómeros de acrilatoduros (c) en una segunda o posterior etapa de polimerización.

    6.
    发明专利
    未知

    公开(公告)号：DE19623412B4

    公开(公告)日：2008-05-29

    申请号：DE19623412

    申请日：1996-06-12

    Applicant: BASF SE

    Inventor： PAKUSCH JOACHIM ,  ROSER JOACHIM ,  ANGEL MAXIMILIAN ,  DRAGON ANDREE

    IPC: C08F6/00 ,  C04B24/26 ,  C04B40/00 ,  C04B40/06 ,  C08J3/12 ,  C08J3/16 ,  C08K3/24 ,  C08L1/00 ,  C08L29/04 ,  C08L33/10 ,  C08L33/26 ,  C08L35/00 ,  C08L39/06 ,  C08L61/00 ,  C08L83/04 ,  C08L97/00 ,  C08L101/00 ,  C08L101/02

    Abstract: The production of polymer powder (I) suitable for the modification of mineral binder building materials, involves drying an aqueous polymer dispersion which forms films with a Tg of not above 30 degrees C, where before drying, the dispersion is treated with drying agents (IIa) which have a liquefying action on the mineral binder when it is mixed with water and ready for use; after drying, the powder (I) is treated with finely divided solid additive(s) (IIIa) which have a solidifying action on the binder/water mix. Alternatively, the dispersion is treated with solidifying driers (IIb) before drying, and the dried powder is treated with finely divided solid additives (IIIb) which have a liquefying action on the mix. Also claimed are: (i) polymer powder (I) obtained by this process; (ii) mineral binders containing (I); and (iii) dry mortar preparations containing 20-60 wt% mineral binder, 0.1-20 wt% (I) and up to 25 wt% conventional additives, the remainder consisting of sand, fillers, pigments and natural and/or synthetic fibres.

    8.
    发明专利
    未知

    公开(公告)号：AT539131T

    公开(公告)日：2012-01-15

    申请号：AT09167798

    申请日：2009-08-13

    Applicant: BASF SE

    Inventor： DIEHL HEIKO ,  DRAGON ANDREE ,  SCHOECKER PETRA

    IPC: C09J133/00

    Abstract: Adhesive composition comprises at least one first organic polymer and at least one different second organic polymer in a solvent, where the glass transition temperatures of the polymers differ by at least 50[deg] C. Adhesive composition comprises at least one first organic polymer and at least one different second organic polymer in a solvent, where the glass transition temperatures of the polymers differ by at least 50[deg] C. The first polymer is an adhesive polymer having a glass transition temperature of = 0[deg] C and forms a film when the composition is applied to substrate and subsequently dries; and the second polymer is present in the composition in the form of dispersed, solid nanoparticles, of average particle size of = 50 nm and with a glass transition temperature of at least 50[deg] C, and does not form a film when the composition is applied to substrate and subsequently dried. Independent claims are included for: (1) a self-adhesive article, where at least one surface of a substrate is at least partly coated with the adhesive composition; (2) a substrate provided with a removable sheet, tape or label; and (3) use of organic polymer particles having an average particle size of = 50 nm and a glass transition temperature of at least 50[deg] C to produce re-detachable self-adhesive articles.

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