Chimosa Chimica Organica S.p.a.

Antonio Tozzi

Paolo Cassandrini

Novel piperidyl triazine derivatives are produced by reacting a substituted halogentriazine with a polyalcohol, a polymercaptan or a polyamine. The compounds are valuable light stabilizers for synthetic polymers, such as polyolefins, and fast to extraction in aqueous surfactant solutions.

Piperidyl-triazine derivatives

Piperidyl-triazine derivatives as stabilizers for synthetic polymers

A composition is described for stabilizing polypropylene homopolymers against the deteriorating effects of light, particularly ultraviolet light, comprising a mixture of (I) benzophenones with (II) metal complexes of related compounds.

Benzophenone base stabilizing agent for polymers and polymers stabilized

Novel tetraalkyl piperidine radical containing polytriazine compounds are produced by reacting a dihalogen-triazine with a bifunctional compound containing amine, alcohol, mercaptan or phenol groups at least one of the bifunctional compounds containing a tetraalkyl piperidine radical. The compounds are valuable light stabilizers for synthetic polymers, particularly polyolefin in the form of fibers or films.

Novel polytriazine compounds

Novel polyurea compounds having the general formula ##STR1## where R.sub.1 is hydrogen, alkyl, cycloalkyl, aryl, substituted aryl, aralkyl, or a piperidine radical of the formula ##STR2## where R.sub.5, R.sub.6, R.sub.8 and R.sub.9 are alkyl and R.sub.7 is hydrogen, oxygen, alkyl, alkenyl, alkinyl or aralkyl, R.sub.2 is alkylene, cycloalkylene, arylene or aralkylene, R.sub.3 is a piperidine radical as set forth above, R.sub.4 is alkylene, cycloalkylene, arylene or aralkylene, X is zero or one, y is an integer from 2 to 200 and A and B each represent a terminal group. In some of the y units and in B the ##STR3## can be replaced in part by ##STR4## where R.sub.10 R.sub.11 and R.sub.12 are hydrogen, alkyl, cycloalkyl, aryl, aralkyl or R.sub.10 and R.sub.11, are linked together so that ##STR5## forms a 6 to 8 member heterocyclic ring Are produced by reacting a diamine with carbonyl chloride or a diisocyanate. The compounds are valuable light stabilizers for synthetic polymers, particularly polypropylene and polyethelene.

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Sasso Marconi, Italy

Antonio Tozzi