Back to results
US 12,240,786 B2Granted
Inorganic material with improved properties
AssigneeAgemos AG
InventorsMohammad Hossein Ehsaei, Bernd Spangenberg, Sidon Futterknecht
Life of this patent
Estimating the term…
Abstract
Suggested is a solid formed with Si, Al, Ca, O and at least one of Na and K, characterized in that in the 27Al-MAS-NMR spectra of the solid compared to the 27Al-MAS-NMR spectrum of calcium aluminate, an additional signal is present which has a chemical shift which lies between that of the main peak of calcium aluminate and that peak of calcium aluminate which is closest to the main peak in the higher field. 2.
Claims4
A solid formed with Si, Al, Ca, O and at least one of Na and K,
- wherein in comparing the 27Al-MAS-NMR spectrum of the solid to the 27Al-MAS-NMR spectrum of calcium aluminate, an additional signal is present in the 27Al-MAS-NMR spectrum of the solid, wherein the additional signal has a chemical shift which lies between that of the main peak of calcium aluminate and that peak of calcium aluminate which is closest to the main peak in the higher field,
- wherein on the basis of the signal areas of the three signals attributed to calcium aluminate signal and the additional signal in the 27Al-MAS-NMR spectrum of the solid, the Si/Al-ratio is determined to be less than 1 and greater than 0.1,
- wherein a calcium aluminate signal is also present in the 27Al-MAS NMR spectrum of the solid, at a chemical shift around 78 ppm, the calcium aluminate signal being at least 3σ (sigma) above the noise,
- wherein the 27Al-MAS-NMR spectrum of the solid has the additional signal and a calcium aluminate signal at a chemical shift around 78 ppm, and
- wherein said solid is hydrophobic throughout the volume.
2 more elements
Dependencies are inferred from the claim text.