Abstract: Plastics moulded parts, suitable for the motor vehicle sector, consisting of a transparent plastics material the rear face of which is provided with a colour- and/or effect-producing lacquer.

Abstract: Aqueous coating composition based on polyols with ammonium groups and polyisocyanates, which coating composition may contain pigments and/or extenders, customary lacquer additives and one or more organic solvents, and containsA) as binder at least one (meth)acrylic copolymer with a hydroxyl value of 20 to 150 mg KOH/g and with an amine value of 10 to 150 mg KOH/g, both values being related to solid resin, wherein 2 to 50 wt.% of the solid binder resin may be replaced with one or more other binders, wherein the (meth)acrylic copolymer is neutralised with an acid containing at least one isocyanate-reactive group; andB) as crosslinking agent at least one polyisocyanate, which may be blocked,wherein components A) and B) are present in quantities such that the ratio of the sum of isocyanate-reactive groups in the binder component A) to the blocked and unblocked isocyanates in component B) is 1:0.5 to 1:3. The coating composition is in particular suitable for use in the production of coatings on plastic substrates.

Abstract: A process for priming of plastic substrates without adverse effects on the mechanical stability by applying to a plastic substrate, particularly a polyolefin substrate, a coating composition which comprises from 10 to 35% by weight of binders having an OH number of from 40 to 150, prepared from (meth)acrylamides, hydroxyalkyl (meth) acrylates and copolymerisable, olefinically unsaturated compounds with subsequent modification by means of polyisocyanates, up to 20% by weight of further binders, from 30 to 70% by weight of organic solvents, from 15 to 45% by weight of pigments and/or fillers, from 0 to 15% by weight of additives and from 1 to 30% by weight of epoxide- or polyisocyanate-based crosslinking agents.

Abstract: The invention comprises a hollow body, suitable for receiving diffusible substances and made of plastics material coated with varnish resins, the external surface of which has a roughness, measured in profile according to DIN 4768, Part I, of Rz=from 2 to 150 .mu.m and R.sub.max =from 5 to 250 .mu.m on which a coating, positively linked with that surface to provide a seal against diffusion of liquids and gases present in the body, consisting of a chemically crosslinked polyurethane resin is located in a layer thickness of from 10 to 800 .mu.m.