Patents by Inventor Gilberto Nucida

Gilberto Nucida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5304646
    Abstract: Amelinic compounds of general formula (I) ##STR1## obtained by condensation of 1 mol of cyanuric acid halide with 2 mols of an amine and subsequent hydrolysis of the intermediate thus obtained. Compounds of general formula (I) are used, in particular, as flame retardant additives for polymers.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: April 19, 1994
    Assignee: Ministero Dell'Universita' E Della Ricerca Scientifica E Tecnologica
    Inventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
  • Patent number: 5302641
    Abstract: Self-extinguishing thermoplastic polymeric compositions comprising a phosrus derivative and condensation compounds obtained by means of the polymerization of polyaminic mixtures essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1## with aldehydes, preferably formaldehyde.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: April 12, 1994
    Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5302642
    Abstract: Self-extinguishing polymeric compositions comprising an ammonium polyphoste having the general formula:(NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1microencapsulated with condensation compounds obtained by polymerizing polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (II): ##STR1## with aldehydes, preferably formaldehyde.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: April 12, 1994
    Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5302640
    Abstract: Self-extinguishing, thermoplastic, polymeric compositions comprising a phhorus derivative and condensation compounds obtained by polymerizing polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1## with aldehydes, preferably formaldehyde.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: April 12, 1994
    Assignee: Ministero Dell `Universita` e Della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5296598
    Abstract: Derivatives of triazinylphosphonic acid having the general formula (I): ##STR1## obtained by means of the reaction of condensation of a cyanuric halide w an ester of phosphorous acid and subsequent reaction of substitution with a polyamine and an amine.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: March 22, 1994
    Assignee: Ministero dell'Universita' e della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Enrico Masarati, Cristina Rossi, Roberto Oriani, Gilberto Nucida
  • Patent number: 5225463
    Abstract: Self-extinguishing polymeric compositions containing: a) from 90 to 40 parts by weight of a thermoplastic polymer, or a polymer having elastomeric properties and b) 10 to 60 parts by weight of one or more 2,4,6-triamino-1,3,5-triazine compounds salified with an oxygenated acid of phosphorus, wherein at least one of the triamino substituents of the triazine compound are substituted with at least one of the following radicals ##STR1## wherein m=an integer between 2 and 8;p=an integer between 2 and 6;R.sub.8 =H; C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.q H.sub.2q OR.sub.9 wherein q is an integer between 1 and 4 and R.sub.9 is hydrogen or C.sub.1 -C.sub.4 alkyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;R' is H; C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl; C.sub.1 -C.sub.4 hydroxyalkyl, or ##STR2## is replaced by a heterocyclic radical bound to the alkyl chain through the nitrogen atom.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: July 6, 1993
    Assignee: Ministero dell'Universita e della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Mario Pirozzi, Enrico Masarati
  • Patent number: 5223560
    Abstract: Polymeric compositions endowed with high self-extinguishing characteristics hen exposed to a flame, based on thermoplastic polymers or polymers endowed with elastomeric properties, in particular olefinic polymers or copolymers comprising:(a) from 89 to 45 parts by weight of a thermoplastic polymer, or of a polymer, or of a polymer endowed with elastomeric properties;(b) from 8 to 30 parts by weight of one or more ammonium or amine phosphate(s) and/or phosphonate(s);(c) from 3 to 25 parts by weight of one or more compound(s) derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1##
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: June 29, 1993
    Assignee: Ministero Dell'Universita' E Della Ricerca Scientifica E Tecnologica
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Mario Pirozzi, Roberto Oriani
  • Patent number: 5210120
    Abstract: Polymeric compositions endowed with high self-extinguishing characteristics o flame, based on thermoplastic polymers or polymers having elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 89 to 40 parts by weight of a thermoplastic polymer or of a polymer having elastomeric properties;b) from 8 to 33 parts by weight of one or more phosphates and/or phosphonates of ammonium or of amine;c) from 3 to 27 parts by weight of one or more oligomeric compounds derived from the 2,4-diamino-6-hydroxy-1,3,5-triazine, having the general formula (I): ##STR1##
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: May 11, 1993
    Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e Technologica
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani, Mario Pirozzi
  • Patent number: 5200445
    Abstract: Polymeric compositions endowed with high characteristics of flame self-esguishing, based on thermoplastic polymers or showing elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 89 to 40 parts by weight of a thermoplastic polymer or having elastomeric properties;b) from 8 to 33 parts b.w; of one or more phosphates and/or phosphonates of ammonium or of an amine;c) from 3 to 27 parts b.w.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: April 6, 1993
    Assignee: Ministero Dell'Universita' e Della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Mario Pirozzi, Roberto Oriani
  • Patent number: 5182388
    Abstract: Salts of triazinic compounds with oxygenated acids of phosphorus, of the eral formula (I): ##STR1## wherein: at least one of radicals for R to R.sub.5 is: ##STR2## being:m=an integer comprised between 2 and 8;p=an integer comprised between 2 and 6;The new salts having the general formula (I) are applied, in particular, as anti-flame additives for polymers.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: January 26, 1993
    Assignee: Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Enrico Masarati
  • Patent number: 5153245
    Abstract: Polymeric compositions endowed with high characterics of self-extinguishing o flame based on thermoplastic polymers or having elastomeric properties, especially olefin polymers and copolymers, comprising:a) from 91 to 40 parts by weight of a thermoplastic polymer or having elastomeric properties;b) from 6 to 33 parts by weight of one or more phosphates and/or phosphonates of ammonium or of an amine;c) from 3 to 27 parts by weight of one or more compounds derived from 2,4-diamino-6-hydroxy-1,3,5-triazine, having the general formula (I): ##STR1##
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: October 6, 1992
    Assignee: Ministero Dell'Universita' E Della Ricerca Scientifica E Technologic
    Inventors: Roberto Cipolli, Gilberto Nucida, Enrico Masarati, Roberto Oriani, Mario Pirozzi
  • Patent number: 5124379
    Abstract: Polymeric compositions endowed with high self-extinguishing characteristics hen exposed to a flame, based on thermoplastic polymers or polymers endowed with elastomeric properties, in particular olefinic polymers or copolymers, comprising:(a) from 89 to 45 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties;(b) from 8 to 30 parts by weight of one or more ammonium or amine phosphates(s) and/or phosphonate(s);(c) from 3 to 25 parts by weight of one or more compound(s) derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (I): ##STR1## wherein at least one of the radicals from R to R.sub.5 is: ##STR2## wherein: n=an integer comprised within the range of from 2 to 8;m=an integer comprised within the range of from 2 to 6;R.sub.6 =H; (C.sub.1 -C.sub.8)-alkyl; (C.sub.2 -C.sub.6)-alkenyl; --C.sub.p H.sub.2p --O--R.sub.8, wherein p is an integer comprised within the range of from 1 to 4 and R.sub.8 is either H or a (C.sub.1 -C.sub.4)-alkyl; (C.sub.6 -C.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: June 23, 1992
    Assignee: Presidenza del Consiglio dei Ministri Ufficio del Ministro per il Coordinamento delle Iniziative per la Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Gilberto Nucida, Mario Pirozzi, Enrico Masarati
  • Patent number: 5104986
    Abstract: Triazinic compounds of general formula (I): ##STR1## obtained by the reaction of one mole of a halide of cyanuric acid with two oles of an amine, and following reaction of the so obtained intermediate with a polyamine.The compounds of general formula (I) find a use, in particular, as flame-retardant additives for polymers.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: April 14, 1992
    Assignee: Ministero Dell' Universita' e Della Ricerca Scientifica e Tecnologia
    Inventors: Roberto Cipolli, Enrico Masarati, Gilberto Nucida, Roberto Oriani
  • Patent number: 4772708
    Abstract: Derivatives of 4-hydroxy-methyl-piperidine having general formula: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be alkyl or may form, with the carbon they are bound to, a cycloalkyl group or the group ##STR2## with R.sub.6, R.sub.7, R.sub.8 and R.sub.9 being hydrogen or alkyl; R.sub.5 may be H, alkyl, aryl, alkenyl, etc.; Y may be an organic or inorganic group or atom having a valence from 1 to 4 and n is an integer from 1 to 4.The use of the derivatives of the alkyl-substituted 4-hydroxy-methyl-piperidine of formula (I) as stabilizers of polymeric substances, and polymeric compositions stabilized with said piperdine derivatives.This invention relates to new derivatives of alkyl-substituted 4-hydroxy-methyl-piperidine, to the use thereof as stabilizers of polymeric substances usually subject to worsening owing to thermal and/or photo-oxidation, and to the polymeric compositions stabilized with said derivatives.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: September 20, 1988
    Assignee: Ausimont S.p.A.
    Inventors: Piero Di Battista, Gilberto Nucida
  • Patent number: 4772699
    Abstract: Derivatives of morpholine containing substituted piperidine groups having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, the same or different, are each a lower alkyl group, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4, together with a carbon atom to which they are bound, represent a cycloalkyl group or a group of the formula: ##STR2## in which R.sub.6, R.sub.7, R.sub.8 and R.sub.9, the same or different, represent a hydrogen atom or a lower alkyl group, and R.sub.5 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkoxyalkyl group, an aralkyl group, a substituted aralkyl group carrying one or more substituents on the aryl radical, a 2,3-epoxypropyl group, a group of formula --CH.sub.2 --COOR.sub.10 in which R.sub.10 is an alkyl group, an alkenyl group, a phenyl group, an aralkyl group or a cyclohexyl group; a group of formula: ##STR3## in which R.sub.11 is a hydrogen atom, a methyl group, an ethyl group or a phenyl group, and R.sub.
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: September 20, 1988
    Assignee: Ausimont S.p.A.
    Inventors: Piero Di Battista, Gilberto Nucida