Abstract: Specific siloxanes, compositions containing these specific siloxanes, and processes for preparation thereof, are useful for treatment of fabrics, in cleaning and care formulations for the household and for industrial purposes, and in cosmetic, pharmaceutical and dermatological compositions, especially in cosmetic cleansing and care formulations, hair treatment products and hair aftertreatment products, and for cleaning and care of hard surfaces, preferably for cleaning and care of motor vehicles, especially as additive in drying aids for carwash facilities.

Abstract: Process for the preparation of copolymeric polypeptides, which comprises, in a first stage, reacting glutamic acid and/or derivatives thereof with amines in the absence of solvents and catalysts, under condensation conditions and, in a second stage, adding one or more further amino acids and/or derivatives thereof and/or one or more identical and/or further amines simultaneously or in any desired order, and reacting them with the reaction product of the first stage in the absence of solvents and catalysts.

Abstract: Process for the preparation of copolymeric polypeptides, which comprises, in a first stage, reacting glutamic acid and/or derivatives thereof with amines in the absence of solvents and catalysts, under condensation conditions and, in a second stage, adding one or more further amino acids and/or derivatives thereof and/or one or more identical and/or further amines simultaneously or in any desired order, and reacting them with the reaction product of the first stage in the absence of solvents and catalysts.