Novel keto-ethers

Novel L-leucyl-4-hydroxyanilide derivatives

Novel light stabilizers

Novel light stabilizers

Novel light stabilizers for plastics

Novel light-sensitive compounds and photoreactable compositions

Novel liquid membrane formulations

Novel liquid-crystal compounds

Novel lonomycin derivatives

Novel lower alkenals

Novel lysergic acid amides and process for preparing same

Novel lysine salt crystals and process for production thereof

Novel materials containing nitrogen

Novel metal complexes

Novel metal complexes of azomethines and process for their manuf

Novel metal mercaptides of esters of .beta.-mercaptoalkanols

Novel metallized dyes, their manufacture and use

Novel methacrylic polymers having condensation-crosslinkable fun

Novel methacrylic polymers having pendant acrylate and methacryl

Novel method for manufacturing plastisol resins