公开(公告)号：DE50204841D1

公开(公告)日：2005-12-15

申请号：DE50204841

申请日：2002-10-17

Applicant: BASF AG

Inventor： KOPPERS DR ,  SCHMIDT MARCO ,  ANSELMANN THOMAS ,  SCHMIDT-THUEMMES DR ,  ZOTT MIKE ,  WISTUBA DR

IPC: C08K3/10 ,  C08F212/04 ,  C08F220/00 ,  C08F236/04 ,  C08F236/10 ,  C08L25/10 ,  C09D125/08 ,  C08F212/08 ,  C09D109/08 ,  C09D125/10

Abstract: An aqueous polymer dispersion with a polymerisate in disperse distribution in a radically polymerized form is synthesized from at least one vinyl aromatic monomer A; a doubly conjugated ethylenically unsaturated monomer B; and a monomer C selected from alpha, beta-monoethylenically unsaturated mono- and dicarboxylic acids or their amide or ester derivatives. An aqueous polymer dispersion with a polymerisate in disperse distribution in a radically polymerized form synthesized from (wt.%): at east one vinyl aromatic monomer (monomer A)(20-65); at least one doubly conjugated ethylenically unsaturated double bonded monomer (monomer B)(30-75); and at least one other monomer (monomer C)(0.5-10) selected from alpha,beta-monoethylenically unsaturated mono- and dicarboxylic acids or their amide or ester derivatives, and their content GA of alkali metal ion, relative to the weight of dispersed polymerisate is ≥ 0.5 wt.% , where the pH of the aqueous dispersion medium is set at a value lower than 6 is new. An Independent claim is included for preparation of the aqueous polymer dispersion by radical emulsion polymerization of the starting monomers A, B, and C in the required ratios for production of the polymer, with setting of the pH of the aqueous dispersion medium at below 6 by addition of a specific amount of aqueous alkali metal hydroxide solution.

公开(公告)号：DE50104674D1

公开(公告)日：2005-01-05

申请号：DE50104674

申请日：2001-10-06

Applicant: BASF AG

Inventor： CHRISTIE DR ,  PAKUSCH DR ,  WISTUBA DR ,  SEIBERT HORST ,  FICKEISEN PETER

IPC: C08L25/10 ,  C08F236/10 ,  C08K5/00 ,  C09J109/02 ,  C09J109/06 ,  C09J113/00 ,  C09J125/10 ,  C09J133/20

Abstract: Aqueous compositions containing a filler and a copolymer based on a vinyl aromatic monomer and a conjugated diene, in which the copolymer also contains 0.1-4.5 wt.% of monomer unit(s) with acid or acid anhydride group(s) and optionally a water-soluble monomer without acid or anhydride groups. Aqueous compositions (I) containing: (A) a polymer (1-60 wt.%) based on: (a) a vinyl aromatic monomer with up to 20 carbon atoms (10-50 wt.%); (b) a non-aromatic hydrocarbon with two conjugated double bonds (45-75 wt.%); (c) a water-soluble monomer containing no acid or acid anhydride groups, with a solubility of at least 100 g/l water at 21 degrees C and 1 bar (0-20 wt.%); (d) a monomer with acid or anhydride group(s) (0.1-4.5 wt.%); and (e) other monomers (0-30 wt.%); and (B) a filler (40-99 wt.%) An Independent claim is also included for substrates coated with (I).

公开(公告)号：DE59606404D1

公开(公告)日：2001-03-08

申请号：DE59606404

申请日：1996-10-31

Applicant: BASF AG

Inventor： SCHMIDT-THUEMMES DR ,  WISTUBA DR ,  DRAGON ANDREE ,  ANSELMANN THOMAS

IPC: C08K3/28 ,  C08F2/22 ,  C08F212/00 ,  C08F212/06 ,  C08F212/08 ,  C08F236/10 ,  C08K3/00 ,  C08K5/17 ,  C08L25/00 ,  C08L25/02 ,  C09D5/00 ,  C09D109/06 ,  C09D109/08 ,  C09D125/00 ,  C09D125/02 ,  C09D125/10

Abstract: Aqueous polymer dispersions (I), containing a radical copolymer (CP) with an alkali metal ion content (GA) of not more than 0.5 wt.%, based on (A) 20-65 wt.% vinylaromatic monomer(s), (B) 35-80 wt.% comonomer(s) with two conjugated double bonds and (C) 0-10 wt.% other comonomers with at least one double bond. Also claimed are (i) aqueous polymer preparations containing (I) and finely divided pigment in amounts of up to 60 vol.% (IIA) or 20-45 vol.% (IIB); (ii) substrates coated with a film of (I) or (II), and (iii) a process for the production of (I) by radical- initiated aqueous emulsion polymerisation of the above comonomers, with the addition of ammonia and/or organic amine to increase the pH of the dispersion medium.