The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2015
Filed:
Apr. 22, 2013
Construction Research & Technology Gmbh, Trostberg, DE;
Madalina Andreea Stefan, Trostberg, DE;
Torsten Freund, Limburgerhof, DE;
Lorenzo Ambrosini, Oberengstringen, CH;
Attilio Camplone, Pescara, IT;
Stijn Brughmans, Ludwigshafen, DE;
Jürgen Faderl, Ilvesheim, DE;
Construction Research & Technology GmbH, Trostberg, DE;
Abstract
The invention relates to a method for grinding an inorganic solid from the series cement clinker, pozzolan and/or raw material for cement production, where a grinding additive is added before or during grinding, and the grinding additive, based on the dry mass, comprises 6% to 80% by weight of caprolactam and 1.5% to 30% by weight of aminocaproic acid, where, based in each case on the dry mass, 0.002% to 2% by weight of the grinding additive is used, based on the total solid. Further claimed are a grinding additive and the use thereof for increasing the compressive strength of the cured product produced therewith.