1
Paolo Cassandrini, Antonio Tozzi: Novel polytriazine compounds. Chimosa Chimica Organica S p A, Cushman Darby & Cushman, April 25, 1978: US04086204 (124 worldwide citation)

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 ...


2
Paolo Cassandrini, Antonio Tozzi: Piperidyl-triazine derivatives as stabilizers for synthetic polymers. Chimosa Chimica Organica S p A, Cushman Darby & Cushman, August 22, 1978: US04108829 (82 worldwide citation)

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.


3
Paolo Cassandrini, Antonio Tozzi: Piperidyl-triazine derivatives. Chimosa Chimica Organica S p A, Cushman Darby & Cushman, April 21, 1981: US04263434 (30 worldwide citation)

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.


4
Paolo Cassandrini, Antonio Tozzi: Polyurea compounds which improve the light stability of polymers. Chimosa Chimica Organica S p A, Cushman Darby & Cushman, April 25, 1978: US04086207 (12 worldwide citation)

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 o ...


5
Giuseppe Cantatore, Paolo Cassandrini: Piperidine compounds and their use as stabilizers for synthetic polymers. Chimosa Chimica Organica S p A, Morgan Finnegan Pine Foley & Lee, July 21, 1981: US04279804 (11 worldwide citation)

New piperidine compounds of the formula ##STR1## in which the radicals have the meanings indicated in the specification and which are stabilizers against light, heat and oxidation for synthetic polymers.


6
Antonio Tozzi, Paolo Cassandrini: Benzophenone base stabilizing agent for polymers and polymers stabilized thereby. Chimosa Chimica Organica S p A, June 27, 1978: US04097454 (8 worldwide citation)

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.


7
Giuseppe Cantatore, Paolo Cassandrini: Piperidine compounds. Chimosa Chimica Organica S p A, Wenderoth Lind & Ponack, February 16, 1982: US04316025 (7 worldwide citation)

Compounds of the formula ##STR1## in which R.sub.1 is hydrogen, --O, --CN, a linear or branched alkyl radical containing from 1 to 20 carbon atoms, an alkenyl or alkynyl radical containing from 2 to 20 carbon atoms, benzyl which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 -alkyl radic ...


8
Giuseppe Cantatore, Paolo Cassandrini: Process for preparing 2,2,6,6-tetramethyl-4-piperidone. Ciba Geigy S p A, Morgan Finnegan Pine Foley & Lee, August 20, 1985: US04536581 (4 worldwide citation)

A process for preparing 2,2,6,6-tetramethyl-4-piperidone from ammonia and acetone, wherein acetone and ammonia are reacted in a single stage for a time of 2 to 8 hours in an acetone:ammonia molar ratio of 20:1 to 4:1, at a temperature of 50.degree. to 120.degree. C. and at a pressure of 1 to 50 atmo ...


9
Giuseppe Cantatore, Paolo Cassandrini: Derivatives of 1,3,5-triazacycloheptane-2,4-dione and their use as polymer stabilizers. Chimosa Chimica Organica S p A, December 9, 1980: US04238388 (4 worldwide citation)

New compounds are disclosed comprised in the formula ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12 are as defined in the specification and which have been found highly useful as stabilizers for polymers.