The invention relates to a metal compd. of calixarene not contg. sulfur and dispersible in oil, which can be partially salified, or neutral, or basic or overbased, wherein the calixarene has the general formula (I), where R1, R2, R3 and R4 are independently selected from hydrogen, or a group contg. carbon and hydrogen, or a group contg. heteroatoms in addn. to carbon and hydrogen, provided that the heteroatoms are not sulfur; one of the two substituents R5 and R6 is hydrogen, while the other may be hydrogen, or a linear or branched C1-C6-alkyl, preferably Me, Et, 1-Pr, 2-Pr, Bu, sec-Bu, more preferably Me or ethyl; n is the no. of units of the calixarene ring and is in the range between 4 and 16, preferably between 5 and 12, wherein in at least one of the n units of the calixarene ring, at least one of the substituents R1, R2, R3 and R4 contains at least one carboxylic acid group available for the reaction with a metal base, with the proviso that the carboxylic acid group is not contained in a unit of the calixarene ring derived from salicylic acid. [on SciFinder(R)]

Metal compounds of calixarenes, detergent compositions and lubricant compositions / Notari, Marcello; Roselli, Alberto; Casnati, Alessandro; Sansone, Francesco; Burlini, Alessandro.. - (2020).

Metal compounds of calixarenes, detergent compositions and lubricant compositions

Casnati, Alessandro;Sansone, Francesco;Burlini, Alessandro.
2020

Abstract

The invention relates to a metal compd. of calixarene not contg. sulfur and dispersible in oil, which can be partially salified, or neutral, or basic or overbased, wherein the calixarene has the general formula (I), where R1, R2, R3 and R4 are independently selected from hydrogen, or a group contg. carbon and hydrogen, or a group contg. heteroatoms in addn. to carbon and hydrogen, provided that the heteroatoms are not sulfur; one of the two substituents R5 and R6 is hydrogen, while the other may be hydrogen, or a linear or branched C1-C6-alkyl, preferably Me, Et, 1-Pr, 2-Pr, Bu, sec-Bu, more preferably Me or ethyl; n is the no. of units of the calixarene ring and is in the range between 4 and 16, preferably between 5 and 12, wherein in at least one of the n units of the calixarene ring, at least one of the substituents R1, R2, R3 and R4 contains at least one carboxylic acid group available for the reaction with a metal base, with the proviso that the carboxylic acid group is not contained in a unit of the calixarene ring derived from salicylic acid. [on SciFinder(R)]
Metal compounds of calixarenes, detergent compositions and lubricant compositions / Notari, Marcello; Roselli, Alberto; Casnati, Alessandro; Sansone, Francesco; Burlini, Alessandro.. - (2020).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2852725
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact