No-mess ophthalmic lens tinting process

Non-mutagenic dye

Novel red dyes for fiberglass and paper

Opaque tinting of contact lenses with random positions of color

Opaque tinting process for contact lens

Organic materials having sulfonamido linked poly(oxyalkylene) mo

Overprinting of dye colored poly(vinyl chloride) resins

Oxidation base dye composition and method of dyeing therewith

Oxonitrides of the formula LnTaON.sub.2 with enhanced brightness

Partially dyed plastic lens and method of manufacturing same

Pigment colored contact lenses and method for making same

Polarizing film: polymer film base containing substituted anthra

Polymeric dyes derived from bis-reactive methylene compounds and

Polyvinyl chloride resin particles dyed with cationic dyestuffs

Preparation of dyed plastics or polymeric dye particles

Process and apparatus for the continuous dyeing of lengths of ma

Process for coloring expandable polystyrene beads

Process for coloring organic solvents, mineral oil products, wax

Process for coloring polytrimethylene terephthalate fibres and u

Process for dyeing mixed elastomeric and non-elastomeric fibers