摘要:
Compositions including blends of Group II and/or Group III base oils and alkkylated fused and/or polyfused aromatic compositions, such as alkylated naphthalenes are provided. The use of such compositions, which exhibit excellent additive solvency, thermo-oxidative stability, hydrolytic stability, and seal swell characteristics, as lubricants is disclosed.
摘要:
A concentrate composition is disclosed which comprises (a) a blend of (i) a metal sulfonate and (ii) an alkali or alkaline earth metal or zinc salt of a carboxylic acid and (b) a carrier. The composition is useful as a rust- and corrosion-inhibitor in a petroleum or synthetic base medium and is capable of maintaining metal sulfonate content at temperatures greater than 150.degree. C., e.g., 200.degree. C., for 20 hours.
摘要:
Improved solvent-extractants for the selective recovery of metal values from acidic aqueous media comprise solutions of 5-alkylbenzotriazoles in water-immiscible organic solvents. Extraction efficiency is enhanced by addition to the solvent-extractant of alkyl aromatic sulfonic acids, alkyl phosphoric acids or carboxylic acids. Especially important applications for the improved solvent-extractants are in the recovery of copper (II) from cobalt (II), copper (II) from nickel (II), copper (II) from iron (III), copper (II) from zinc (II), nickel (II) from cobalt (II), nickel (II) from zinc (II), nickel (II) from iron (III), iron (III) from magnesium (II), and cobalt (II) from zinc (II).
摘要:
Amino resins, e.g., urea-formaldehyde and melamine-formaldehyde thermosetting resin systems, are catalyzed with high molecular weight polyalkylaromatic polysulfonic acids, e.g., dinonylnaphthalene disulfonic acid and didodecylnaphthalene disulfonic acid. Resins cured with such catalysts provide surface coatings having superior properties. The catalyzed compositions can include other conventional ingredients, capable of co-reacting with the amino resins, such as polyols, polyacids, alkyd resins, polyester resins, and the like, to provide compositions curable to products having a wide range of properties.
摘要:
This invention relates to certain linear, low-molecular-weight polyester-based polyols having at least two hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## wherein R is a moiety derived from a saturated aliphatic polyhydric alcohol; n is 1 or 2, and at least about 50% by weight, of n is n=1; p is 0 to 4 inclusive and m is 2 to 10 inclusive; said polyol being substantially free of any unreacted polyhydric alcohol.
摘要:
This invention relates to certain linear, low-molecular-weight polyester-based polyols having at least two hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## wherein R is a moiety derived from a saturated aliphatic polyhydric alcohol; n is 1 or 2, and at least about 50% by weight, of n is n=1; p is 0 to 4 inclusive and m is 2 to 10 inclusive; said polyol being substantially free of any unreacted polyhydric alcohol.
摘要:
This invention relates to a linear, low-molecular-weight polyester-based polyol having terminal primary hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## where n is 1 or 2 and at least 70% by weight is n=1, and m=2-10, said polyol being substantially free of cyclohexane dimethanol.
摘要:
Compositions comprising alkanolamine salts of alkylaromatic sulfonic acids, a half acid ester of an alkyl- or alkenylsuccinic acid and a liquid medium comprising predominantly water, and, optionally, sufficient excess alkanolamine to maintain true solubility in all proportions with water provide thin, continuous, clear protective coatings for metallic substrates normally susceptible to corrosion.
摘要:
An improved process for producing metal salts of organosulfonic acids comprises reacting the sulfonic acid with a slight excess of the corresponding metal carbonate until the carbonate/acid equilibrium point is reached, i.e., the pH of a substantially carbonate- and bicarbonate-free sample stabilizes in the range of 6.0 to 6.38, and then adding a very small amount of stronger base to effect complete neutralization of the remainder of the sulfonic acid.
摘要:
A composition which is thermooxidatively stable is provided which comprises a normally thermooxidatively unstable organic compound and effective amount of a thermooxidative stabilizing composition comprising an oil soluble sulfonate of a metal selected from barium, calcium, magnesium, zinc or a mixture of any of the foregoing; an effective amount of a stabilizer comprising an alkali or alkaline earth metal or zinc soap of an alkyl or alkenyl succinic acid, a partial ester thereof or a mixture of the foregoing; an effective amount of at least one primary antioxidant; optionally an effective amount of a secondary antioxidant; and optionally a carrier for the thermooxidative stabilizing composition. A thermooxidative stabilizing composition and a method for stabilizing a normally unstable organic compound comprising the addition of an effective amount of the thermooxidative stabilizing composition are provided as well.