Andreas Rathjens

Hydrophilically substituted enol esters as bleaches or bleach activators

New N-substituted chitan and chitosan derivatives, useful as hydrocolloid in cosmetics and pharmaceuticals, with good solubility in basic and neutral media

Composition, useful for the treatment of metal surfaces to improve corrosion resistance, comprises a solvent and at least one silane compound

N,O-substituted biopolymer is obtained by N- or O-alkoxylating chitin and/or and structurizing with alkylation and/or acylation agents from alkyl halides

New N,O-substituted chitins and chitosans prepared by alkoxylation, N-substitution with aldoses or ketones followed by reduction, useful as additives for cosmetics, e.g. shampoos and suntan lotions

New O-substituted chitins and chitosans prepared by acylation with two or more different carboxylic acid chlorides or anhydrides are useful as additives for cosmetics, e.g. shampoos and suntan lotions

METAL PROCESSING LIQUID FOR THE NEUTRAL pH RANGE

Production of chitin or chitosan derivatives by reaction with cyclic dicarboxylic acid anhydride

Production of chitin and chitosan biopolymers useful in cosmetic and pharmaceutical preparations and washing, rinsing and cleaning products

Bonding agent containing alkoxysilane for paint and adhesives on metal