Patent · US Expired

Quaternary ammonium carbonate compositions and preparation thereof

US5523487A · kind A · utility

11Cited by
11References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 27, 1995
Grant dateJun 4, 1996
Priority date
Expiry dateMar 27, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/662
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Quaternary ammonium carbonates having the formula ##STR1## wherein R.sup.1 is a C.sub.1 -C.sub.20 alkyl or aryl-substituted alkyl group and R.sup.2 is a C.sub.8 -C.sub.20 alkyl group have been synthesized. These compounds and compositions further comprising the corresponding quaternary ammonium bicarbonate ##STR2## wherein R.sup.1 is the same or a different C.sub.1 -C.sub.20 alkyl or aryl-substituted alkyl group and R.sup.2 is the same or a different C.sub.8 -C.sub.20 alkyl group and/or the corresponding quaternary ammonium metal carbonate ##STR3## wherein R.sup.1 is the same or a different C.sub.1 -C.sub.20 alkyl or aryl-substituted alkyl group; R.sup.2 is the same or a different C.sub.8 -C.sub.20 alkyl group and M is a non-coupler metal, are prepared by reacting two reactants, a C.sub.1 -C.sub.20 alkyl or aryl-substituted alkyl, C.sub.8 -C.sub.20 alkyl quaternary ammonium chloride and a metal hydroxide, in a solvent comprising a C.sub.1 -C.sub.4 normal alcohol. The amount of metal chloride reactant is that amount sufficient to yield the C.sub.1 -C.sub.20 alkyl or aryl-substituted alkyl, C.sub.8 -C.sub.20 alkyl quaternary ammonium hydroxide, a metal chloride, and optionally unreac…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.