Invention Grant
- Patent Title: Quick-drying building material composition based on a mineral hybrid binder
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Application No.: US15300813Application Date: 2015-03-30
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Publication No.: US10167229B2Publication Date: 2019-01-01
- Inventor: Hubert Motzet , Wolfgang Börsting , Markus Knoebel , Thomas Meinersmann
- Applicant: SIKA TECHNOLOGY AG
- Applicant Address: CH Baar
- Assignee: SIKA TECHNOLOGY AG
- Current Assignee: SIKA TECHNOLOGY AG
- Current Assignee Address: CH Baar
- Agency: Oliff PLC
- Priority: EP14162889 20140331
- International Application: PCT/EP2015/056881 WO 20150330
- International Announcement: WO2015/150319 WO 20151008
- Main IPC: C04B28/14
- IPC: C04B28/14 ; C04B28/06 ; C04B28/16 ; C04B14/06 ; C04B14/28 ; C04B111/00 ; C04B111/34 ; C04B111/60 ; C04B103/32 ; C04B111/32

Abstract:
A quick-drying gypsum composition, in particular for use as gypsum filling compound and for the production of floor coverings, wherein the gypsum composition contains 20 to 70% of a mixture of calcium aluminate and calcium sulfate hemihydrate and/or anhydrite and/or calcium sulfate dihydrate as hydraulic binders and 30 to 80% by weight of fillers, and wherein the weight ratio of calcium aluminate to calcium sulfate hemihydrate and/or anhydrite and/or calcium sulfate dihydrate binders lies in the range from 1:1 to 1:5. Gypsum compositions of this type are characterized by a particularly beneficial shrinkage behavior, such that stresses and cracks in the dried composition can be avoided. At the same time, the gypsum compositions dry to readiness for covering in a time that is compatible with conventional cement filling compounds.
Public/Granted literature
- US20170029333A1 QUICK-DRYING BUILDING MATERIAL COMPOSITION BASED ON A MINERAL HYBRID BINDER Public/Granted day:2017-02-02
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