Process for the coloration of thermoplastic polymers and polycon
Process for the dyeing of polymers of propylene, butene-1 and 4-
Process for tinting contact lens
Process for tracing liquid flow with a dye-impregnated paper str
Process for treating knits containing polyester bicomponent...
Process of dyeing with disazo dyes containing a fluorosulphonyl
Process of producing a colored area of desired depth in an...