Patent GB-833136-A (GB)
Title: Nitroparaffin gels
IPC: C09D9/00
Filed: 1958-02-19
Abstract: Lubricants and paint removing compositions comprise the gel-like reaction products obtained by mixing 2-amino-2-methylpropanol with one or more secondary nitroparaffins and, optionally, with one or more inert solvents such as water, primary or tertiary nitroparaffins, ketones, amines, alcohols, ethers or chlorinated hydrocarbons.  Diluents may also be added to partially gelled products.  In the absence of diluents the proportion of 2-amino-2-methylpropanol may be as low as 3 to 5% by volume, but in the presence of diluents the proportion is preferably not less than 10% by volume.  Preferred secondary nitroparaffins are aliphatic with a chain of up to 10 carbons; exemplified by 2-nitropropane, 2-nitrobutane and 2-nitropentane. Specified organic diluents are nitromethane, ethylene diamine, morpholine, toluene, methylethyl lactone, methylene chloride, ethyl ether, ethyl alcohol and butyl alcohol.  Specification 824,533 is referred to.ALSO:The invention comprises gel-like reaction products obtained by mixing 2-amino-2-methyl-propanol with one or more secondary nitroparaffins and, optionally, with one or more inert solvents such as water, primary or tertiary nitroparaffins, ketones, amines, alcohols, ethers or chlorinated hydrocarbons.  The diluents and any excess of secondary nitroparaffin are absorbed by the initial crystalline product to form the gels, and diluents may also be introduced at various stages during such gelation.  In the absence of diluents the proportion of 2 - amino - 2 - methylpropanol may be as low as 3% by volume but is preferably not less than 5% by volume; higher proportions giving harder and more stable gels.  When diluents are present the proportion of 2-amino-2-methyl-propanol is preferably not less than 10% by volume; such gels being less stable than those without diluents. The gels are prepared by mixing the components at temperatures within the range 20 DEG  to 70 DEG  F., the presence of diluents facilitating the use of the lower temperatures.  The gels decompose in the range 70 DEG  to 120 DEG  F., those incorporating diluents decomposing at the lower temperatures.  Preferred secondary nitroparaffins are those of aliphatic character having a chain of up to 10 carbons; examples being 2-nitropropane, 2-nitrobutane and 2-nitropentane.  Specified organic diluents are nitromethane, ethylene diamine, morpholine, toluene, methylethyl ketone, methylenechloride, ethylether, ethyl alcohol and butyl alcohol. Specification 824,533 is referred to.ALSO:Insecticidal and fumigant compositions comprise the gel-like reaction products obtained by mixing 2-amino-2-methylpropanol with one or more secondary nitroparaffins and, optionally, with one or more inert solvents such as water, primary or tertiary nitroparaffins, ketones, amines, alcohols, ethers or chlorinated hydrocarbons.  Diluents may also be added to partially gelled products.  In the absence of diluents the proportion of 2-amino-2-methylpropanol may be as low as 3 to 5% by volume, but in the presence of diluents the proportion is preferably not less than 10% by volume.  Preferred secondary nitroparaffins are aliphatic with a chain of up to 10 carbons; exemplified by 2-nitropropane, 2-nitrobutane and 2-nitropentane.  Specified organic diluents are nitromethane, ethylene diamine, morpholine, toluene, methylethyl ketone, methylene chloride, ethyl ether, ethyl alcohol and butyl alcohol.  Specification 824,533 is referred to.