公开(公告)号：US10131580B2

公开(公告)日：2018-11-20

申请号：US15519891

申请日：2015-10-23

Applicant: BASF SE

Inventor： Uwe Gehrig ,  Ekkehard Jahns ,  Michael Schinabeck ,  Martin Pichler ,  Mehmet Akif Pekmezci ,  Mehmet Ergin

IPC: C04B24/00 ,  C04B28/14 ,  C07C49/88 ,  C04B40/00 ,  D21H17/17 ,  D21H17/25 ,  D21H17/28 ,  C04B24/02 ,  C04B24/08 ,  C04B24/22 ,  C04B24/38 ,  C04B38/10 ,  C04B111/27 ,  C04B103/40 ,  C04B103/65

Abstract: The present invention relates to a method for producing a gypsum-containing foamed prefabricated building material and to a gypsum-containing foamed prefabricated building material.

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：US10144671B2

公开(公告)日：2018-12-04

申请号：US15519865

申请日：2015-10-23

Applicant: BASF SE

Inventor： Uwe Gehrig ,  Alexander Assmann ,  Klaus Seip ,  Martin Pichler ,  Torben Gädt

IPC: C04B24/04 ,  C04B24/00 ,  C04B28/04 ,  C04B40/00 ,  C04B41/46 ,  C04B41/00 ,  C04B41/62 ,  C04B24/26 ,  C04B24/30 ,  C04B24/38 ,  C04B28/02 ,  C04B111/10 ,  C04B111/27 ,  C04B103/40 ,  C04B103/65

Abstract: A process for hydrophobization of concrete or mortar using an aqueous dispersion containing an alkylketene dimer, at least one emulsifier and a condensation product of phenol sulfonic acid and formaldehyde, naphthalene sulfonic acid and formaldehyde, or naphthalene sulfonic acid, phenol, formaldehyde and urea; and the concrete or mortar obtainable by the process. The process allows effective mass and surface hydrophobization of concrete.

公开(公告)号：US10065893B2

公开(公告)日：2018-09-04

申请号：US15561096

申请日：2016-04-18

Applicant: BASF SE

Inventor： Nina Susanne Hillesheim ,  Uwe Gehrig

IPC: C04B28/14 ,  C04B28/16 ,  C08F28/04 ,  C04B24/16 ,  C04B111/60 ,  C04B111/00

Abstract: The invention relates to a composition comprising at least one binder based on calcium sulfate and at least one polymer obtainable by polymerization of monomers based on alkoxylates of S-vinylthioalkanols. Furthermore a molding, in particular a gypsum plasterboard, a gypsum wallboard, a screed or a knifing filler, obtained by setting of the composition of the invention is disclosed.