公开(公告)号：US11667569B2

公开(公告)日：2023-06-06

申请号：US16487702

申请日：2018-02-22

Applicant: BASF SE

Inventor： Christoph Hesse ,  Michael Dietzsch ,  Attila Dal ,  Maria Becker

IPC: C04B14/04 ,  C04B28/18 ,  C04B22/00 ,  C04B28/02 ,  C04B20/00 ,  C04B22/06 ,  C04B40/00 ,  C04B103/14 ,  C04B103/40 ,  C04B103/00 ,  C04B103/10

CPC classification number: C04B14/043 ,  C04B20/002 ,  C04B22/00 ,  C04B22/00863 ,  C04B22/064 ,  C04B28/02 ,  C04B28/188 ,  C04B40/00 ,  C04B2103/006 ,  C04B2103/10 ,  C04B2103/14 ,  C04B2103/408 ,  C04B22/00863 ,  C04B40/024 ,  C04B2103/408 ,  C04B28/02 ,  C04B7/32 ,  C04B7/323 ,  C04B14/06 ,  C04B14/106 ,  C04B14/108 ,  C04B18/08 ,  C04B18/141 ,  C04B22/00863 ,  C04B2103/0088

Abstract: A curing accelerator composition for building chemical mixtures comprises a mineral constituent and a polymeric water-soluble dispersant. The mineral constituent comprises a semi-ordered calcium silicate hydrate having an apparent crystallite size of 15 nm or less and less than 35% by weight of crystalline phases other than the semi-ordered calcium silicate hydrate. The composition displays a more pronounced accelerating effect than comparative compositions in which the mineral component comprises a calcium silicate hydrate having a higher degree of crystallinity.

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.