| abstract |
The present invention relates to formula Rn 1 x-CO-NRn 3 rn 4 the allophanamide of replacement, polyureas, double carbamate or polyurethane(s) for improve mineral with the purposes of the service performance of the non-water and wastewater industry fluid of synthesis, wherein, X represents Rn 2 n or O, Rn 1 to Rn 4 represent hydrogen, alkyl, thiazolinyl, cycloalkyl, aryl or aralkyl independently of one another, wherein at least one variable must represent the group with at least 4 carbon atoms, and urea or carbamate-functional must exist multiple by bridge-jointing unit. |