摘要:
A method for producing compounds comprising at least one carbodiimide group is described, by reacting at least one isocyanate-containing starting compound or a derivative thereof, wherein the method is conducted in at least two stages.
摘要:
The present invention provides a process for the esterification of unsaturated carboxylic acids with unsaturated alcohols, which is characterized in that esterification is performed in the presence of sterically hindered phenols and partially esterified phosphoric acids. The process according to the invention in particular avoids discoloration (blackening) of the resultant esterification products.
摘要:
A method is described for producing lactamates by reacting alcoholates with lactams, wherein a reaction mixture comprising at least one alcoholate and at least one lactam is subjected to thin film evaporation.
摘要:
A method is described for producing lactamates by reacting alcoholates with lactams, wherein a reaction mixture comprising at least one alcoholate and at least one lactam is subjected to thin film evaporation.
摘要:
The present invention relates to hot-melt adhesive compositions comprising in addition to 2-(1,1-dimethylethyl)-6-[[3-(1,1-dimethylethyl)-2-hydroxy-5-methylphenyl]methyl-4-methylphenyl]acrylate as an antioxidant at least one carbodiimide compound.
摘要:
The present invention relates to a system comprising a) at least one catalyst for the anionic polymerization of lactams, and b) at least one activator for the anionic polymerization of lactams, wherein the at least one activator is a cyclic isocyanate, at least one allophanate or a mixture thereof.
摘要:
The invention relates to innovative viscosity stabilizers for hotmelts, to melt-viscosity-stable hotmelts comprising these viscosity stabilizers, to a process for preparing them and to their use.
摘要:
The present invention relates to a system comprising a) at least one catalyst for the anionic polymerization of lactams, and b) at least one activator for the anionic polymerization of lactams, wherein the at least one activator is a cyclic isocyanate, at least one allophanate or a mixture thereof.
摘要:
The present invention relates to a process for the preparation of (poly)urea powders, novel (poly)urea powders, compositions comprising them and the use thereof as thickening agents, in particular in lubricants, such as so-called polyurea greases.