公开(公告)号：US10927224B2

公开(公告)日：2021-02-23

申请号：US16093437

申请日：2017-04-10

Applicant: BASF SE

Inventor： Gerhard Albrecht ,  Sophie Putzien ,  Torben Gaedt ,  Michael Dietzsch ,  Harald Grassl ,  Iris Loescher ,  Luc Nicoleau

IPC: C08K3/08 ,  C08J3/12 ,  C04B40/00 ,  C04B2/00 ,  C04B24/26 ,  C04B24/28 ,  C08J3/05 ,  C08K3/22 ,  C08K3/34 ,  C04B103/00

Abstract: The invention relates to a process for modifying polymer particles of an aqueous polymer dispersion in which positively or negatively charged polymer particles are provided with an inorganic salt shell. The inorganic shell leads to an improved drying ability and storage stability of the latex and improves the storage stability of the resulting polymer powder. The obtained polymer powder exhibits an improved viscosity and faster skin-forming time in the final application and is therefore particularly useful in a building material composition.

公开(公告)号：US10131578B2

公开(公告)日：2018-11-20

申请号：US14897778

申请日：2014-07-10

Applicant: BASF SE

Inventor： Torben Gaedt ,  Martin Winklbauer ,  Harald Grassl ,  Michael Schinabeck ,  Nina Susanne Hillesheim ,  Antonia Grafetstetter

IPC: C04B11/00 ,  C04B16/04 ,  C04B24/24 ,  C04B28/14 ,  C08F220/28 ,  C04B103/40 ,  C04B111/00 ,  C04B111/62

Abstract: The invention relates to a dispersant comprising a polymer obtainable by copolymerization of monomers including 5 to 80 mol % of a hydroxyalkyl acrylate phosphate and/or hydroxyalkylacrylamide phosphate (monomer 1), 0 to 20 mol % of a di(hydroxyalkyl acrylate) phosphate and/or di(hydroxyalkylacrylamide) phosphate (monomer 2) and 1 to 80 mol % of a polyalkylene glycol-containing macromonomer comprising an alkene group (monomer 3). Further disclosed is a process for preparing the polymers of the invention and the use thereof as dispersants in calcium sulphate-containing compositions. A further aspect of the invention is a process for producing shaped gypsum bodies, and also shaped gypsum bodies, more particularly gypsum plasterboards and self-levelling screeds, comprising the dispersant of the invention.

公开(公告)号：US20160122243A1

公开(公告)日：2016-05-05

申请号：US14897778

申请日：2014-07-10

Applicant: BASF SE

Inventor： Torben Gaedt ,  Martin Winklbauer ,  Harald Grassl ,  Michael Schinabeck ,  Nina Susanne Hillesheim ,  Antonia Grafetstetter

IPC: C04B11/00 ,  C04B16/04

CPC classification number: C04B11/00 ,  C04B16/04 ,  C04B24/246 ,  C04B28/14 ,  C04B2103/408 ,  C04B2111/0062 ,  C04B2111/62 ,  C08F220/28 ,  C08F2220/286 ,  C08F230/02

Abstract: The invention relates to a dispersant comprising a polymer obtainable by copolymerization of monomers including 5 to 80 mol % of a hydroxyalkyl acrylate phosphate and/or hydroxyalkylacrylamide phosphate (monomer 1), 0 to 20 mol % of a di(hydroxyalkyl acrylate) phosphate and/or di(hydroxyalkylacrylamide) phosphate (monomer 2) and 1 to 80 mol % of a polyalkylene glycol-containing macromonomer comprising an alkene group (monomer 3). Further disclosed is a process for preparing the polymers of the invention and the use thereof as dispersants in calcium sulphate-containing compositions. A further aspect of the invention is a process for producing shaped gypsum bodies, and also shaped gypsum bodies, more particularly gypsum plasterboards and self-levelling screeds, comprising the dispersant of the invention.

Abstract translation: 本发明涉及一种包含聚合物的分散剂，该聚合物可通过使包含5-80摩尔％的丙烯酸羟烷基酯磷酸酯和/或羟烷基丙烯酰胺磷酸酯（单体1），0-20摩尔％的二（羟基烷基丙烯酸酯）磷酸酯和/ 或二（羟基烷基丙烯酰胺）磷酸酯（单体2）和1〜80摩尔％的含有亚烷基二醇的大分子单体（包含烯烃基团（单体3））。 进一步公开的是制备本发明聚合物的方法及其作为含硫酸钙组合物中分散剂的用途。 本发明的另一方面是生产成形石膏体以及成型石膏体的方法，更特别是包含本发明分散剂的石膏板和自流平砂浆。