N-alkyl ammonium acetonitrile activators in dense gas cleaning a

Details N-alkyl ammonium acetonitrile activators in dense gas cleaning a N-alkyl ammonium acetonitrile activators in dense gas cleaning a

1996-11-29

1998-08-11

Anthony, Joseph D.

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

8137, 25218639, 510312, D06L 302, C01B 1500, C11D 339

Patent

active

057922187

ABSTRACT:
Nitrile activators, such as N-alkyl ammonium acetonitrile activators, are combined with a source of active oxygen as cleaning and bleaching compositions. Preferred activator embodiments of the invention include salts of N-methyl morpholinium acetonitrile, N-butyl morpholinium acetonitrile, N-hexyl morpholinium acetonitrile, and N-octyl morpholinium acetonitrile. A particularly preferred activator embodiment is an N-methyl morpholinium acetonitrile salt. The nitrile and active oxygen react to form a bleaching agent which is applied to a stain on an article. The treated stain is contacted with dense gas so as to provide substantially non-aqueous stain removal. One embodiment is a composition in which the nitrile and active oxygen are disposed in the dense carbon dioxide.

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