Invention Grant
- Patent Title: Silica-coated expanding agents and their use in cementitious systems
-
Application No.: US16094557Application Date: 2017-04-07
-
Publication No.: US11008256B2Publication Date: 2021-05-18
- Inventor: Radoslaw Kierat , Michael Klemens Mueller , Andreas Kempter , Oscar Lafuente Cerda , Kai Bergner
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: EP16165787 20160418
- International Application: PCT/EP2017/058408 WO 20170407
- International Announcement: WO2017/182296 WO 20171026
- Main IPC: B05D7/00
- IPC: B05D7/00 ; B32B5/16 ; C04B20/10 ; C04B28/02 ; C04B40/06 ; C04B22/06 ; C04B111/00 ; C04B111/34 ; C04B111/60 ; C04B111/70 ; C04B111/72 ; C04B111/62 ; C04B111/28
Abstract:
The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.
Public/Granted literature
- US20190119161A1 SILICA-COATED EXPANDING AGENTS AND THEIR USE IN CEMENTITIOUS SYSTEMS Public/Granted day:2019-04-25
Information query
