摘要:
A description is given of the use of light stabilizers of formulae (1) and/or (2) for protecting body-care and household products from photolytic degradation.
摘要:
A description is given of the use of light stabilizers of formulae (1) and/or (2) for protecting body-care and household products from photolytic degradation.
摘要:
The invention relates to cleaning compositions comprising (a1) a phenolic antioxidant of the formula (1) and/or (2); and/or (a2) an antioxidant of the formula (3); and (b) a surfactant comprising a long alkyl or alkenyl chain. The antioxidants used according to the invention have excellent reactivity, good stability to hydrolysis, particularly in an alkaline medium, and, because of their solubility, can be easily incorporated into the soap formulations.
摘要:
The invention relates to cleaning compositions comprising (a1) a phenolic antioxidant of the formula (1) and/or (2); and/or (a2) an antioxidant of the formula (3); and (b) a surfactant comprising a long alkyl or alkenyl chain. The antioxidants used according to the invention have excellent reactivity, good stability to hydrolysis, particularly in an alkaline medium, and, because of their solubility, can be easily incorporated into the soap formulations.
摘要:
A description is given of the use of light stabilizers of formulae (1) and/or (2) for protecting body-care and household products from photolytic degradation.
摘要:
Para-coupled products of the 1-naphthol series can be destroyed in the presence of the ortho-coupled product by reduction with salts of dithionous acid or of hydroxymethanesulphinic acid or with hydrazine optionally in the presence of redox-catalysts.
摘要:
Stable, concentrated solutions of anionic dyestuffs are prepared by reacting the alkali metal or ammonium salts of anionic dyestuffs and brighteners, which are usually obtained from the industrial preparation process, in water-soluble organic solvents, optionally in the presence of water, with salts of nitrogen bases which impart hydrophilic properties, in accordance with the reaction equationMe.sub.n F + nB.multidot.A.fwdarw.Bn.multidot.F + nMeAin whichMe denotes an alkali metal or ammonium ion,B denotes a protonated or quaternized nitrogen base,A denotes the anion of an acid,N denotes an integer from 1 to 4 andF denotes the anion of a dyestuff acid,And separating the resulting solutions from the salt n.multidot.MeA, which is insoluble in the reaction mass.
摘要:
A method of and apparatus for supplying pulverulent material includes a fluidizing unit which is introduced into a transport container containing the pulverulent material. The fluidizing unit causes suspension or floating of the pulveulent material in the transport container. A suction unit and a discharge unit such as an injector withdraws fluidized pulverulent material and conveys it to the processing device. The fluidizing unit and the discharge unit are preferably combined to a constructional unit which is adjustable relative to the fluidizing unit. Thus, the use of separate powder containers is avoided as the transport container in which the pulverulent material is contained is directly used as a powder container.