Abstract:
A family of amine mining collectors that uses alkoxylates allows for the easy adjustment of solubility and molecular weight useful because anionic and cationic mineral collectors require such varying degrees of solubility and molecular weight. The family of the present invention allows for the optimization of both parameters and an increase in collector efficiency.
Abstract:
This invention relates to the use of arylguanidinium xanthogenates as vulcanization accelerators, to a process for the production thereof and to the arylguanidinium xanthogenates.
Abstract:
Cyclohexanol esters of the formula I ##STR1## are described in which the radicals have the given meaning. The compounds are pharmacologically active and may therefore be used as pharmaceuticals, in particular for treating diabetes and other diseases which are characterized by an elevated secretion of glucose from the liver or by an elevated activity of the glucose-6-phosphatase system.
Abstract:
Bis-(alkoxy)tetrathiotricarboxylates are disclosed as well as herbicidal compositions containing such compounds and the use of such compounds as post-emergence herbicides.
Abstract:
Compounds of the structure: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are hydrogen, alkyl, alkenyl, alkynyl, phenyl-alkyl, or cycloalkyl,n is an integer from 0 to 4 inclusive,M is alkenyl, alkynyl, cycloalkyl, cycloalkyl-alkyl, polycycloalkyl, polycyclo-alkyl-alkyl, aryl, aralkyl, heteroaryl, heteroaryl-alkyl, hetero-cycloalkyl, hetero-cycloalkyl-alkyl, alkoxyalkyl, alkylthioalkyl, alkylamino-alkyl, dialkylamino-alkyl, fused aryl-cycloalkyl, fused aryl-cycloalkyl-alkyl, fused heteroaryl-cycloalkyl, or fused heteroaryl-cycloalkyl-alkyl,Y is hydroxy, alkoxy, amino, or substituted amino, aminoalkanoyl, aryloxy, aminoalkoxy, or hydroxyalkoxy, andR.sub.7 is hydrogen, alkanoyl, carboxylalkanoyl, hydroxyalkanoyl, amino-alkanoyl, cyano, amidino, carbalkoxy, ZS, or ##STR2## wherein Z is hydrogen, alkyl, hyroxyalkyl, aminoalkyl or the radical ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, n, M and Y are as described above; and where Y is hydroxy their non-toxic, pharmaceutically acceptable alkali metal, alkaline earth metal, and amine salts.
Abstract:
Dialkoxyxanthogendisulphides, their production by reacting an alcohol and carbondisulphide in the presence of alkali and subsequent oxidation, use of these dialkoxyxanthogendisulphides as molecular weight regulators in polymerization processes and a mixture of chloroprene-copolymers made in the presence of dialkoxyxanthogendisulphides.
Abstract:
AN IMPROVEMENT IN THE PROCESS FOR THE MANUFACTURE OF ALKALI METAL XANTHATES BY THE REACTION OF AN ALKYL ALCOHOL, CARBON DISULPHIDE AND ALKALI HYDROXIDE IN THE PRESENCE OF AN INERT DILUENT. THE IMPROVEMENT RESIDES IN THE REDUCTION OF SCALE FORMATION ON THE SURFACE OF THE HEAT EXCHANGER OF THE REACTION VESSEL BY ADDITION OF PELLETS OF AN INERT PLASTIC MATERIAL TO THE REACTION MIXTURE. THE USE OF THE PELLETS PERMITS AN INCREASE IN THE RATE OF PRODUCTION OF ALKALI METAL XANTHATES.
Abstract:
Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.