摘要:
The invention relates to novel compounds which comprise, as cationic or as anionic component, a pyrimidinecarboxylic acid derivative, in particular a derivative of ectoin or hydroxyectoin, to a process for the preparation thereof, and to the use thereof as ionic liquid or to the use thereof in pharmaceutical, cosmetic and dermatological formulations.
摘要:
This invention relates to the use of ionic liquids comprising a cation with at least one electron donor region and one positively charged electrostatic region which are spatially distinct from each other for protein refolding and a method for refolding proteins using said ionic liquids.
摘要:
The present invention relates to novel oxygen-containing organoaluminium complexes of the general formula (I) in which R1, independently of one another, denote branched or unbranched C1-C7-alkyl, -cycloalkyl, -alkenyl, -cycloalkenyl, -aryl or -alkynyl; R2 denotes unsubstituted, mono- or polyalkylated and/or mono- or polyfluorinated aromatic hydrocarbons from the group R3, R4, independently of one another, denote CH2, CF2 or C(R1)2; independently of one another, m denotes 0, 1, 2 n denotes 0, 1, 2. These compounds can serve as cocatalysts in olefinic polymerisation reactions. In particular, they can be employed for the preparation of novel Ziegler-Natta catalysts having improved properties, in particular having higher activities compared with conventional Ziegler-Natta catalysts with AlEt3, as cocatalyst, or of novel coordination catalyst systems which have higher activities than conventional Ziegler-Natta catalysts, even at low temperatures, such as 60° C., and a pressure of 2 bar.
摘要:
Coated platelet-shaped carrier material composed of an inorganic substrate provided with at least one coating, each layer comprising at least one cured melamine-formaldehyde resin or being composed of such a resin, and also a process for preparing the coated carrier material and its use as effect pigment.
摘要:
Disclosed are compounds of formula (I) which compounds are useful as cocatalysts in olefinic polymerisation reactions, e.g., as Ziegler-Natta catalysts.
摘要:
The invention relates to a nonflake coated coloring pigment which consists of an inorganic or organic, amorphous or partially crystalline material and which is provided with at least one coating, where each layer comprises at least one cured melamine-formaldehyde resin or consists of one such resin. The pigment is particularly readily suitable for producing cosmetic products. It confers a pleasant skin sensation to the user of the cosmetic products.