Catalyst systems of the Ziegler-Natta type

    公开(公告)号:AU2477397A

    公开(公告)日:1997-12-18

    申请号:AU2477397

    申请日:1997-06-10

    Applicant: BASF AG

    Abstract: Ziegler-Natta type catalyst system (ZNC), containing (a) a titanium-based solid component containing compounds of Ti and magnesium, a halogen, an inorganic oxide support (IOS) and a carboxylate ester as electron donor, (b) an aluminium compound and (c) optionally another electron donor, in which the oxide (IOS) has a pH of 1-6, an average particle diameter of 5-200 microns and an average primary particle diameter of 1-20 mu m, and contains pores or channels with an average diameter of 0.1-20 mu m in amounts of 5-30 vol%. Also claimed is (i) a process for the production of ZNC by interacting components (a), (b) and (c) together at 0-150 degrees C and 1-100 bar; (ii) a process for the production of polymers of 2-20C alk-1-enes by polymerisation of the alkene (preferably propylene) and optionally other comonomers at 20-150 degrees C and 1-100 bar in presence of (ZNC); (iii) polymers of propylene obtained by this process.

    METHOD FOR THE PRODUCTION OF POLYISOBUTENE

    公开(公告)号:AU2003266397A1

    公开(公告)日:2004-04-19

    申请号:AU2003266397

    申请日:2003-09-18

    Applicant: BASF AG

    Abstract: A process for the preparation of polyisobutene containing at least 75 mol % of terminal vinylidene groups, in which isobutene or an isobutene-containing hydrocarbon mixture is polymerized in the liquid phase in the presence of a boron trifluoride complex catalyst having the composition a(BF3):b(Co1):c(Co2) where Co1 is at least one tertiary alcohol, Co2 is at least one compound selected from water, primary alcohols, secondary alcohols, dialkyl ethers, alkanecarboxylic acids and phenols, the ratio c:b is from 0.9 to 1.8 and the ratio (b+c):a is from 0.9 to 3.0, is described.

    FORMULATION FOR USE IN CHROME OR CHROME-FREE TANNAGE

    公开(公告)号:AU2003260394A1

    公开(公告)日:2004-03-29

    申请号:AU2003260394

    申请日:2003-08-08

    Applicant: BASF AG

    Abstract: Use is claimed as a tanning agent (or an intermediate for a tanning agent) of a clay mineral which, after 30 minutes intensive stirring in water at 50degreesC, gives a laser and light scattering-determined ISO 13320-1 number average particle diameter (D) below 2 mu or a bimodal distribution of (i) 10-90 wt.% of a fraction with D below 0.5 mu and (ii) a coarser fraction of D below 5 mu. An Independent claim is also included for a formulation for use in chromium-free or chrome tanning comprising (a) a clay mineral as above and (b) one or more of an organic polymer, an aldehyde-, sulfone- , resin-, phenol- or vegetable-tanning agent, dubbing material, dye or pigment.

    POLIMEROS DE EPICLOROHIDRINA AMINA USADOS PARA TRATAR LA SUPERFICIE DE UNA PIEL.

    公开(公告)号:ES2279420T3

    公开(公告)日:2007-08-16

    申请号:ES04763901

    申请日:2004-08-06

    Applicant: BASF AG

    Abstract: Un proceso para la preparación de soluciones acuosas de polímeros de epiclorohidrinamina, que comprende las siguientes etapas de proceso: (a) reacción de dos aminas diferentes con al menos un derivado de epiclorohidrina como agente alquilante en agua durante un periodo que es suficiente para que el agente alquilante libre no sea detectable, resultando una mezcla de reacción (I); (b) si es apropiado, enfriar la mezcla de reacción (I) resultante de la etapa de proceso (a); (c) adición de al menos un ácido y, si es apropiado, agua a esta mezcla de reacción (I) hasta que el pH de la mezcla de reacción (I) sea de 4 a 10, resultando una mezcla de reacción (II), y (d) si es apropiado, hacer reaccionar la mezcla de reacción (II) con un agente productor de cationes, siendo las aminas dimetilaminopropilamina y bencilamina.

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