WÄSSRIGE POLYMERDISPERSIONEN FÜR HAFTKLEBSTOFFE
    4.
    发明公开
    WÄSSRIGE POLYMERDISPERSIONEN FÜR HAFTKLEBSTOFFE 有权
    水性聚合物乳液FOR粘合的粘合剂

    公开(公告)号:EP2274349A1

    公开(公告)日:2011-01-19

    申请号:EP09733230.8

    申请日:2009-04-14

    申请人: BASF SE

    摘要: The present invention relates to aqueous polymer dispersions having a polymer content of at least 55 wt.-%, said dispersions being suitable for adhesives. The invention also relates to a method for producing said aqueous polymer dispersions and the use of the aqueous polymer dispersions in adhesives or adhesive compositions, especially in adhesives for transparent substrates such as plastic labels. The aqueous polymer dispersions have a polymer content of at least 55 wt.-% relative to the total weight of the dispersion, wherein the polymer is made up of ethylenically unsaturated monomers M and has a glass transition temperature of less than -10°C, wherein the dispersed polymer particles have a polymodal particle size distribution, wherein at least 70 wt.-%, preferably at least 75 wt.-%, in particular at least 80 wt.%, especially preferably at least 85 or at least 90 wt.-% of the polymer particles have a particle diameter of less than 350 nm, in particular less than 340 nm, especially less than 330 nm.

    VERFAHREN ZUR HERSTELLUNG VON ACRYLSÄURE-POLYMEREN

    公开(公告)号:EP3411416A1

    公开(公告)日:2018-12-12

    申请号:EP17702123.5

    申请日:2017-02-02

    申请人: BASF SE

    摘要: The invention relates to a method for producing aqueous solutions of acrylic acid polymers by polymerizing acrylic acid in feed mode with a radical starter in the presence of hypophosphite in water as a solvent, wherein (i) water and optionally acrylic acid in acidic, non-neutralized form, optionally one or more ethylenically unsaturated comonomers, optionally aqueous hypophosphite solution, and optionally initiator are introduced, (ii) acrylic acid in acidic, non-neutralized form, optionally one or more ethylenically unsaturated comonomers, aqueous radical starter solution, and aqueous hypophosphite solution are added, (iii) after the end of the acrylic acid feed, a base is added to the aqueous solution, wherein the comonomer content does not exceed 30 wt% with respect to the total monomer content, characterized in that the acrylic acid, the aqueous radical starter solution, and the aqueous hypophosphite solution are added in such a way that, over a time period in which at least 75% of the acrylic acid is converted, the molar ratio x of acrylic acid to phosphorus-bonded hydrogen [AA]/[P-H] has a value x that is constant to ±0.5 and that lies in the range of 0.8 to 2.

    HOHLRAUM-X-MISCHER-WÄRMETAUSCHER
    7.
    发明公开

    公开(公告)号:EP3408014A1

    公开(公告)日:2018-12-05

    申请号:EP17701535.1

    申请日:2017-01-27

    申请人: BASF SE

    IPC分类号: B01F5/06 B01F15/06 F28D7/00

    摘要: The invention relates to a mixer-heat exchanger insert or a mixer-heat exchanger insert assembly and to a mixer-heat exchanger comprising a corresponding mixer-heat exchanger insert assembly which has an improved mixing and temperature control behavior and which is less prone to fouling. The mixer-heat exchanger insert comprises a first group of hollow body plates (10, 11) with an inner volume (13) and a second group of hollow body plates (20, 21) with an inner volume (23). The hollow body plates (10, 11) of the first group are inclined in a first direction (RI) relative to a longitudinal extension direction (L) of the mixer-heat exchanger insert (1), and the hollow body plates (20, 21) of the second group are inclined in a second direction (R2) relative to the longitudinal extension direction (L) of the mixer-heat exchanger insert (1). The hollow body plates (10, 11) of the first group laterally abut the hollow body plates (20, 21) of the second group, and the inner volumes (13) of the first hollow body plates (10, 11) are connected to the inner volumes (23) of the second hollow body plates (20, 21) such that the inner volumes (13) of the first group and the inner volumes (23) of the second group are part of a continuous total inner volume (13, 23) which is designed to conduct a temperature controlling fluid.

    KLEEBLATT MISCHER-WÄRMETAUSCHER
    8.
    发明公开

    公开(公告)号:EP3408013A1

    公开(公告)日:2018-12-05

    申请号:EP17701168.1

    申请日:2017-01-27

    申请人: BASF SE

    IPC分类号: B01F5/06 B01F15/06

    摘要: The invention relates to a mixer-heat exchanger insert or mixer-heat exchanger, having a geometry that leads to less fouling of a fluid to be temperature-controlled, wherein the mixer-heat exchanger insert has an extent in a longitudinal extension direction (L), comprising a temperature-control fluid inlet (110) and a temperature-control fluid outlet (120) and a volume (130) for guiding a temperature-control fluid, which volume extends between the temperature-control fluid inlet (110) and the temperature-control fluid outlet (120), and the mixer-heat exchanger insert has a first tubular section (10), and wherein the tubular section (10) extends in the longitudinal extension direction, wherein the tubular section is led in loops (10a, 10b, ...) transversely to the longitudinal extension direction (L).