公开(公告)号：US20170022107A1

公开(公告)日：2017-01-26

申请号：US15113589

申请日：2015-01-16

Applicant: BASF SE

Inventor： Max SIEBERT ,  Andreas KEMPTER ,  Christoph HESSE ,  Niklas LOGES ,  Rebecca SCHMITT

IPC: C04B22/14 ,  C04B28/16 ,  C04B24/26 ,  C01F11/46

CPC classification number: C04B22/143 ,  C01F11/46 ,  C04B24/2694 ,  C04B28/146 ,  C04B28/16 ,  C04B28/165 ,  C04B40/0042 ,  C04B2103/14 ,  C04B2111/0062 ,  C04B2111/62 ,  C04B2111/72 ,  C04B24/163 ,  C04B24/246 ,  C04B24/2647 ,  C04B24/267 ,  C04B24/2658 ,  C04B22/0086

Abstract: The invention concerns a method for producing pulverulent hardening accelerators by reactive spray drying, where an aqueous phase I comprising calcium ions, and an aqueous phase II comprising sulphate ions, the molar ratio of the calcium ions to the sulphate ions being from 1/5 to 5/1, are contacted at a spray nozzle, and the phases I and II contacted with one another at the spray nozzle are sprayed in a streaming environment of drying gas. Likewise concerned are the pulverulent hardening accelerators producible by the method of the invention, and their use for accelerating the hardening of bassanite and/or anhydrite with formation of gypsum.

Abstract translation: 本发明涉及通过反应性喷雾干燥制备粉末硬化促进剂的方法，其中包含钙离子的水相I和包含硫酸根离子的水相II，钙离子与硫酸根离子的摩尔比为1/5至 5/1在喷嘴处接触，并且在喷雾喷嘴处彼此接触的相I和II在干燥气体的流动环境中喷雾。 同样关心的是通过本发明的方法可生产的粉末硬化促进剂及其用于加速形成石膏的巴生石和/或无水石膏的硬化的用途。

公开(公告)号：US20190144340A1

公开(公告)日：2019-05-16

申请号：US16098031

申请日：2016-05-03

Applicant: BASF SE

Inventor： Christoph HESSE ,  Klaus SEIP ,  Michael SCHINABECK ,  Niklas LOGES

IPC: C04B28/14 ,  C04B14/06 ,  C04B14/28

Abstract: The present invention relates to a construction chemical formulation which cures rapidly and with low stress and which comprises calcium sulfate, an ettringite former, an activator, an aggregate and a polymeric binder, and also to the use of the construction chemical formulation for producing sealants, coatings, adhesives, screeds, or leveling compositions.

公开(公告)号：US20170158561A1

公开(公告)日：2017-06-08

申请号：US15316547

申请日：2015-05-12

Applicant: BASF SE

Inventor： Manfred BICHLER ,  Torben GÄDT ,  Niklas LOGES ,  Oliver MAZANEC ,  Christoph HESSE

IPC: C04B24/32 ,  C04B40/00 ,  C04B22/00 ,  C04B28/04 ,  C04B14/06

CPC classification number: C04B24/32 ,  C04B14/06 ,  C04B22/00 ,  C04B28/02 ,  C04B28/04 ,  C04B40/0042 ,  C04B2103/14 ,  C04B14/043 ,  C04B24/2647 ,  C04B22/0086 ,  C04B24/243 ,  C04B24/165

Abstract: The invention relates to a composition comprising 5-50 wt % of calcium silicate hydrate, 10-60 wt % of at least one water-soluble, acid group-containing polymer comprising polyether groups, and 5-40 wt % of at least one polyalkylene glycol ether. Further disclosed is a process for preparing this composition, and cementitious mixtures comprising the composition. A further aspect of the present invention is the use of the composition of the invention in cementitious mixtures for accelerating the development over time of the dispersing action of the acid group-containing polymer after addition of the mixing water and a subsequently accelerated curing of the mixture.