公开(公告)号：AT238375T

公开(公告)日：2003-05-15

申请号：AT96116467

申请日：1996-10-15

Applicant: BASF AG

Inventor： PAKUSCH JOACHIM DR ,  SCHULER BERNHARD DR ,  MAECHTLE WALTER DR ,  BAUMSTARK ROLAND DR

IPC: C08L33/14 ,  C08F6/00 ,  C08F6/14 ,  C08J3/12 ,  C08L33/04 ,  C08L33/06 ,  C08L33/24 ,  C08L41/00 ,  C08L101/00 ,  C09D5/00 ,  C09D5/02 ,  C09J11/08 ,  C09J201/00 ,  C08L33/26

Abstract: The process for drying aqueous dispersions of a polymer (B), in which the dispersion contains, as auxiliary drying agent, at least one polymer (A) containing (in polymerised form) 80-100 wt.% monomer(s) (a) of formula CH2CR1C(O)XCR2R3-R4-SOH (I) or salts thereof and 0-20 wt.% other radically polymerisable monomer(s) (b), in which R1-3 = H or 1-3 C alkyl; R4 = 1-5 C alkylene; and X = O or NH. Also claimed are: (i) the polymer powder containing (A) and (B); (ii) the mineral binder containing such polymer powder(s); (iii) the synthetic resin-plaster drying preparation containing such powder(s); (iv) the aqueous polymer dispersions of (B) with an emulsifier content of not more than 2 wt.%, containing (A) with a Mw of 5000-35,000 as added dispersant; (v) the process for the radical aqueous emulsion polymerisation of ethylenic monomers, in which (A) with a Mw of 5000-35000 is added before, during or after polymerisation; and (vi) the polymer powder obtained by drying as above.

公开(公告)号：ES2163686T3

公开(公告)日：2002-02-01

申请号：ES97109083

申请日：1997-06-05

Applicant: BASF AG

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

IPC: 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.

公开(公告)号：DE19707746A1

公开(公告)日：1998-08-27

申请号：DE19707746

申请日：1997-02-26

Applicant: BASF AG

Inventor： PAKUSCH JOACHIM DR ,  ANGEL MAXIMILIAN DR ,  CLAASSEN PETER ,  DRAGON ANDREE

IPC: C04B24/24 ,  C04B24/26 ,  C08F2/22 ,  C08J3/16 ,  C08L101/00 ,  C08L33/02 ,  C08L33/10 ,  C09J133/02 ,  C09J133/10 ,  C08J3/03 ,  C09D133/02 ,  C09D133/14

Abstract: The use of copolymers (I) or their salts as drying aids for aqueous dispersions of polymers (II) is claimed. (I) comprise (A) 20-95 mole % 3-6C ethylenically unsaturated carboxylic acid(s), (B) 5-80 mole % hydroxyalkyl ester(s) of 3-6C ethylenically unsaturated carboxylic acid(s) and (C) ≤ 10 mole % other monomers. Also claimed are (i) a method of producing polymer powder by drying aqueous (II) dispersions in the presence of (I); (ii) the polymer powder obtained in this way; (iii) dry mineral building material formulations containing this powder; and (iv) aqueous polymer dispersions obtained by free radical aqueous emulsion polymerisation in the presence of (I).

公开(公告)号：DE19623412A1

公开(公告)日：1997-12-18

申请号：DE19623412

申请日：1996-06-12

Applicant: BASF AG

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

IPC: 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 ,  C08F6/00

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.

公开(公告)号：AT157382T

公开(公告)日：1997-09-15

申请号：AT94109138

申请日：1994-06-15

Applicant: BASF AG

Inventor： PENZEL ERICH DR ,  FRANZMANN GERNOT DR ,  ANGEL MAXIMILIAN DR ,  PAKUSCH JOACHIM DR ,  SCHULER BERNHARD DR

IPC: C08F6/06 ,  C04B24/16 ,  C08F6/00 ,  C08F20/52 ,  C08F20/58 ,  C08J3/12 ,  C08J3/16 ,  C08L33/14 ,  C08L33/24 ,  C08L101/00

Abstract: The use of polymers I comprising from 15 to 80% by weight of monomers of the formula I where R , R and R are C1- to C3-alkyl, R is C1- to C5-alkyl and X is O or NH, and from 20 to 85% by weight of other free-radical-copolymerisable monomers, as auxiliaries in the spray-drying of aqueous dispersions of polymers II which are different from the polymers I.

公开(公告)号：DE19602391A1

公开(公告)日：1997-07-31

申请号：DE19602391

申请日：1996-01-24

Applicant: BASF AG

Inventor： PAKUSCH JOACHIM DR ,  SCHULER BERNHARD DR ,  MAECHTLE WALTER DR ,  BAUMSTARK ROLAND DR

IPC: C08F2/24 ,  C08J3/12 ,  C08L33/06 ,  C08L41/00 ,  C08F6/00 ,  C04B24/26 ,  C08F20/10 ,  C08F20/54 ,  C08F28/00 ,  C08L33/08 ,  C09D125/02 ,  C09D131/02 ,  C09D133/04 ,  C09J133/00

Abstract: The process for drying aqueous dispersions of a polymer (B), in which the dispersion contains, as auxiliary drying agent, at least one polymer (A) containing (in polymerised form) 80-100 wt.% monomer(s) (a) of formula CH2CR1C(O)XCR2R3-R4-SOH (I) or salts thereof and 0-20 wt.% other radically polymerisable monomer(s) (b), in which R1-3 = H or 1-3 C alkyl; R4 = 1-5 C alkylene; and X = O or NH. Also claimed are: (i) the polymer powder containing (A) and (B); (ii) the mineral binder containing such polymer powder(s); (iii) the synthetic resin-plaster drying preparation containing such powder(s); (iv) the aqueous polymer dispersions of (B) with an emulsifier content of not more than 2 wt.%, containing (A) with a Mw of 5000-35,000 as added dispersant; (v) the process for the radical aqueous emulsion polymerisation of ethylenic monomers, in which (A) with a Mw of 5000-35000 is added before, during or after polymerisation; and (vi) the polymer powder obtained by drying as above.

公开(公告)号：DE19540305A1

公开(公告)日：1997-04-30

申请号：DE19540305

申请日：1995-10-28

Applicant: BASF AG

Inventor： PAKUSCH JOACHIM DR ,  DIEING REINHOLD DR ,  TROPSCH JUERGEN DR

IPC: C08L33/14 ,  C08F6/00 ,  C08F6/14 ,  C08J3/16 ,  C08L33/04 ,  C08L33/24 ,  C09D5/00 ,  C09D5/02 ,  C09J11/08 ,  C09J201/00 ,  C08F6/22 ,  C09D157/00 ,  C08F26/06 ,  C08F26/02 ,  C08F20/54 ,  C08F20/38

Abstract: The production of polymer powder comprises drying an aqueous dispersion of a polymer (A) in which the dispersed particles have a positive or negative electric charge on the surface. The process comprises adding, as auxiliary drying agent, a polyelectrolyte (B) which, in its dissociated form as poly-ion and counter-ion is soluble in the aqueous dispersion medium and in which the charge on the poly-ion is opposite to the surface charge on the dispersed polymer. Also claimed are: (i) the polymer powder obtained by this process; and (ii) the polymer powder containing charged spherical particles of (A) and a polyelectrolyte (B).

公开(公告)号：DE4118007A1

公开(公告)日：1992-12-03

申请号：DE4118007

申请日：1991-06-01

Applicant: BASF AG

Inventor： WEISER JUERGEN DR ,  REUTHER WOLFGANG DR ,  STORK KARL DR ,  SCHAFFER ORTWIN DR ,  FRANZMANN GERNOT DR ,  SCHWERZEL THOMAS DR ,  ANGEL MAXIMILIAN DR ,  PAKUSCH JOACHIM DR ,  WEGNER BRIGITTE DR

IPC: C08G14/12 ,  C08G14/00 ,  C08G14/06 ,  C14C3/20

Abstract: Products of the condensation of sulphonated phenols, urea, further organic nitrogen bases and formaldehyde, obtainable by (A) sulphonation of phenols using from 1.0 to 1.5 mol of sulphuric acid per mole of phenol and (B) condensation of these sulphonation products with (a) from 0.5 to 1.8 mol of urea per mole of phenol, (b) from 0.001 to 0.5 mol of at least one further organic nitrogen base per mole of phenol, and (c) from 1.0 to 3.0 mol of formaldehyde per mole of phenol. The condensation products are suitable as tanning agents in the production of leather and pelts and as spray assistants for redispersible polymer powders.