P-n junction of organic materials
Paint colorant product and method
Paper dye
Para-amino-diaryl-methane derivatives
Paraphenylene diamines for use in oxidizing-type hair dyes
Paraphenylenediamines, metaphenylenediamines and...
Pathological tissue detection and treatment employing...
Pendent green-yellow cationic dyes
Perinone dyestuffs
Perinone dyestuffs and process for preparing them
Permanently non-dusting pigment and dye preparations,...
Perylene compounds containing sulphonic groups, process for...
Perylene pigment compositions
Perylenetetracarboxylic acid diimides containing long-chain...
Perylenetetracarboxylic diimide compositions
Pest-controlling agent with insecticidal and acaricidal action
Pesticidal compounds
Pesticidal preparations
Ph indicator and process for preparing same
Ph sensitive cyanine dyes as reactive fluorescent reagents