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US 8,911,550 B2Granted
Glutamine-rich peptides as air entraining agents in building material compounds
AssigneeEvonik Industries AG
InventorsMartin Schilling, Christoph Toelle, Ralph Scheuermann, Sabine Giessler-Blank, Jörn Heiβing
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Abstract
The use of hydrolysates of glutamine-rich proteins for use as air entraining agents in building material compounds.
Claims9
A method of entraining air in a hydraulically curable building material, comprising:
- utilizing a glutamine-rich peptide or peptide mixture as an air entraining agent in the hydraulically curable building material;
- wherein the peptide or peptide mixture contains at least 16 wt.% of glutamine, based on the total mass of the peptide or of the peptides in the peptide mixture.
A method of entraining air in a hydraulically curable building material, comprising:
- utilizing a composition, comprising at least one peptide comprising at least 16 wt.% of glutamine based on the total mass of the peptide, as an air entraining agent in the hydraulically curable building material.
Dependencies are inferred from the claim text.