Compositions – Preservative agents – Anti-corrosion
Patent
1996-10-21
1999-06-29
Kelly, C. H.
Compositions
Preservative agents
Anti-corrosion
252392, 106 1424, 106 1442, 106 1444, 106664, 106808, 106819, 106823, 106727, C09K 300, C04B 902, C04B 702, C04B 1400
Patent
active
059164832
ABSTRACT:
Additives are disclosed which inhibit the corrosion of metals in construction materials which contain an inorganic binder. The inventive corrosion inhibitors contain a reaction product of amines and acids or they consist of such a reaction product. Said saltlike corrosion inhibitors upon use do not develop any undesired fragrance, and they furthermore do not bring along any health risks for the persons who are working with said substances. Through the adding of the inventive corrosion inhibitors, furthermore the properties of the construction material during its preparation and also during its use can be improved. In corresponding processes for inhibiting the corrosion of metals which are in contact with the construction materials, like e.g. metal armings, the corrosion inhibitors are usually added in an amount of 0.01% by weight to 10% by weight of said reaction product, referred to the inorganic binder which is contained in such material. Construction materials which contain the inventive corrosion inhibitors provide a corrosion inhibition of any metal parts embedded into said construction materials over decades of years.
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Burge Theodor A.
Mader Urs
Kelly C. H.
Sika AG, vorm, Kaspar Winkler & Co.
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