| abstract |
New compounds derived from dihydropyridine and containing substituted piperidinyl groups. n<??>The invention also relates to the use of these compounds for the thermal and light stabilisation of polymers, especially of halogenated polymers such as PVC. n<??>They can also be employed as anti-UV in polyolefins, polystyrenes, polyalkadienes, polyurethanes, polyamides, polyesters, polycarbonates, polysulphones, polyethersulphones, polyetherketones, acrylic polymers, their copolymers and their mixtures. n<??>These compounds also have an antioxidant action in the case of the above polymers. |