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US 2024/0174910 A1Published application
Isocyanate-amine-based chemical anchor with improved performance, and use thereof
AssigneeHilti Aktiengesellschaft
InventorsChristian PLENK, Memet-Emin KUMRU, Thomas BÜRGEL
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Abstract
A multi-component resin system can be used for producing a mortar composition based on isocyanate amine adducts for the chemical fastening of construction elements. A mortar composition based on isocyanate amine adducts is produced from the multi-component resin system. The mortar composition based on the isocyanate amine adducts is useful for the chemical fastening of construction elements in mineral substrates.
Claims17
A multi-component resin system, containing:
- an isocyanate component which comprises at least one aliphatic and/or aromatic polyisocyanate having an average NCO functionality of 2 or more, and
- an amine component which comprises at least one amine which is reactive to isocyanate groups and has an average NH functionality of 2 or more,
- with the proviso that the multi-component resin system is free of polyaspartic acid esters, the isocyanate component and, or the amine component comprising at least one filler and at least one rheology additive, and a total filling level of a mortar composition produced by mixing the isocyanate component and the amine component is in a range from 30 to 80 wt. %,
- wherein the isocyanate component and/or the amine component additionally contains a molecular sieve.
1 more element
A method for increasing the pull-out values of a chemical anchor, the method comprising:
- mixing a molecular sieve into a multi-component resin system based on isocyanate amine adducts for chemical fastening.
Dependencies are inferred from the claim text.