公开(公告)号：US11926715B2

公开(公告)日：2024-03-12

申请号：US16759339

申请日：2018-10-24

Applicant: BASF SE

Inventor： Torben Gaedt ,  Joachim Dengler ,  Manfred Bichler

IPC: C08J3/12 ,  C04B24/38 ,  C04B28/02 ,  C04B28/14 ,  C04B103/00

CPC classification number: C08J3/122 ,  C04B24/383 ,  C04B28/02 ,  C04B28/14 ,  C04B2103/0057 ,  C04B2103/0082 ,  C08J2300/12 ,  C08J2301/28 ,  C08J2303/08 ,  C08J2305/00 ,  C08J2433/08 ,  C08J2433/26 ,  C08J2471/00

Abstract: The invention relates to a process for producing a pulverulent composition comprising at least one polymeric dispersant (PD) which comprises structural units having anionic and/or anionogenic groups and structural units having polyether side chains, and at least one polysaccharide (PS). The process here comprises the process steps: a) production of an aqueous dispersion having a viscosity of the dispersion of less than 10 000 mPa·s, comprising the at least one polymeric dispersant (PD) and the at least one polysaccharide (PS) and b) spray drying of the aqueous dispersion produced in process step a). Furthermore, the use of the pulverulent composition according to the invention in inorganic binder compositions, especially as a rheological additive, is disclosed.

公开(公告)号：US10815152B2

公开(公告)日：2020-10-27

申请号：US16308119

申请日：2017-06-09

Applicant: BASF SE

Inventor： Joachim Dengler ,  Christoph Hesse ,  Sebastian Seufert

IPC: C04B28/06 ,  C04B28/04 ,  C04B28/16 ,  C04B28/14 ,  C04B22/10 ,  C04B22/14 ,  C04B24/04 ,  C04B103/22 ,  C04B111/00 ,  C04B111/27 ,  C04B111/62 ,  C04B111/70 ,  C04B111/72 ,  C04B111/60 ,  C04B111/28 ,  C04B24/16 ,  C04B103/14 ,  C04B103/40

Abstract: The present invention relates to a mixture comprising at least one compound comprising an α-hydroxy-carboxylic unit, α-hydroxy-sulfonic acid unit or α-carbonyl-carboxylic unit and at least one water-soluble organic carbonate. The mixture is useful as a hydration control agent in construction chemical compositions comprising an inorganic binder.

公开(公告)号：US10144673B2

公开(公告)日：2018-12-04

申请号：US15560552

申请日：2016-04-20

Applicant: BASF SE

Inventor： Manfred Bichler ,  Martin Winklbauer ,  Torben Gaedt ,  Joachim Dengler ,  Christoph Hesse ,  Bernhard Mayr

IPC: C04B28/02 ,  C04B40/00 ,  C04B14/04 ,  C04B22/00 ,  C04B22/06 ,  C04B24/24 ,  C04B24/26 ,  C04B103/14

Abstract: The invention relates to a method for producing a calcium silicate hydrate-comprising hardening accelerator in powder form, which comprises the steps of (a) providing an aqueous suspension comprising calcium silicate hydrate; (b) mixing at least one calcium compound, selected from calcium acetate, calcium formate, calcium hydroxide, calcium oxide, and mixtures of two or more of said compounds, with the aqueous suspension comprising calcium silicate hydrate; and (c) drying the resulting mixture. The invention also relates to the hardening accelerator obtainable by this method, to the use thereof, and to building material mixtures which comprise the hardening accelerator.

公开(公告)号：US10065891B2

公开(公告)日：2018-09-04

申请号：US15524106

申请日：2015-11-03

Applicant: BASF SE

Inventor： Manfred Bichler ,  Martin Winklbauer ,  Joachim Dengler

IPC: C08F20/06 ,  C08F20/26 ,  C04B24/26 ,  C08L23/00 ,  C04B28/02 ,  C04B24/16 ,  C04B24/24 ,  C04B28/16 ,  C08F220/06 ,  C04B111/00 ,  C04B111/28 ,  C04B111/62 ,  C04B111/70

Abstract: The invention relates to a polymer which is obtainable by copolymerizing monomers comprising at least one ethylenically unsaturated monomer which comprises at least one acid group and at least one ethylenically unsaturated monomer (II) having polyether groups with 5 to 35 repeating units and at least one ethylenically unsaturated monomer (III) having polyether groups with 45 to 150 repeating units, the molar ratio of monomer (II) to monomer (III) being between 75:25 and 99.5:0.5. Further disclosed are the use of the polymer of the invention as an admixture for inorganic binder compositions, and a composition in powder form comprising an inorganic binder and the polymer of the invention.

公开(公告)号：US11345636B2

公开(公告)日：2022-05-31

申请号：US16755778

申请日：2018-10-18

Applicant: BASF SE ,  Saint-Gobain Placo

Inventor： Uwe Gehrig ,  Fabian Niedermair ,  Joachim Dengler ,  Georg Daxenberger ,  Hamouda Jaffel

IPC: C04B28/14 ,  C04B18/16 ,  C04B24/16 ,  C04B24/42 ,  C04B38/10 ,  C04B103/20 ,  C04B103/30 ,  C04B103/40 ,  C04B103/42 ,  C04B111/00 ,  C04B111/60

Abstract: The present invention relates to a gypsum composition comprising recycled gypsum and a foam former comprising at least one alpha-sulfo fatty acid disalt, to a process for production thereof and to an article comprising the gypsum composition of the invention. The present invention further relates to the use of a foam former comprising at least one alpha-sulfo fatty acid disalt for reducing the wet density of an aqueous gypsum composition having a recycled gypsum content of at least 0.5% by weight.

公开(公告)号：US10723656B2

公开(公告)日：2020-07-28

申请号：US16308122

申请日：2017-06-09

Applicant: BASF SE

Inventor： Torben Gaedt ,  Joachim Dengler ,  Oliver Mazanec ,  Christoph Hesse ,  Sebastian Seufert

IPC: C04B24/16 ,  C04B28/04 ,  C04B28/14 ,  C04B28/06 ,  C04B28/16 ,  C04B22/10 ,  C04B24/18 ,  C04B24/22 ,  C04B24/26 ,  C04B103/24 ,  C04B111/62 ,  C04B111/00 ,  C04B111/72 ,  C04B111/60 ,  C04B103/40

Abstract: The present invention relates to construction chemical compositions comprising a bisulfite adduct of glyoxylic acid or a salt or mixed salt thereof and an inorganic binder. The composition is useful as a hydration control agent of the inorganic binder.

公开(公告)号：US09815740B2

公开(公告)日：2017-11-14

申请号：US15300565

申请日：2015-04-01

Applicant: BASF SE

Inventor： Oliver Mazanec ,  Sebastian Seufert ,  Joachim Dengler ,  Torben Gaedt

IPC: C04B28/16 ,  C04B28/04 ,  C04B24/14 ,  C04B24/26 ,  C04B22/06 ,  C04B103/22 ,  C04B103/40 ,  C04B103/14

CPC classification number: C04B28/16 ,  C04B22/064 ,  C04B24/14 ,  C04B24/2611 ,  C04B28/04 ,  C04B28/14 ,  C04B2103/14 ,  C04B2103/20 ,  C04B2103/22 ,  C04B2103/408 ,  C04B2111/34 ,  C04B2111/60 ,  C04B2111/62 ,  C04B7/02 ,  C04B14/06 ,  C04B14/28 ,  C04B24/008 ,  C04B24/123 ,  C04B2103/0057 ,  C04B2103/10 ,  C04B2103/30 ,  C04B2103/50 ,  C04B7/32 ,  C04B22/143 ,  C04B24/06

Abstract: The invention concerns a composition containing a) 2 to 80 weight % of Ordinary Portland Cement with respect to the total weight of the composition b) 2 to 80 weight % of a calcium sulfate based binder with respect to the total weight of the composition, with the proviso that the weight ratio of a) Ordinary Portland Cement to b) calcium sulfate based binder is from 95/5 to 5/95 and c) at least one retarder for calcium sulfate based binders, the retarder being a chemical structure, which comprises from 3 to 70 amino acids. Also concerned is the use of the compositions for self-levelling underlayments, tile adhesives, non-shrink grouts, floor screeds and repair mortars.