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| Number | Title | Issue Date |
| 6686401 | Liquid composition polymerizable into organic glass having good optical and physico-mechanical properties Liquid composition polymerizable, by means of radicalic polymerization, into organic glass, comprising the product obtained from the transesterification of a mixture of diallyl carbonate (A) and a phthalic ester (B), with one or more polyols (C), linear o... | 02/03/2004 |
| 6620867 | Crystalline modification of mixtures of a nickel-quencher and a benzophenone and process for its preparation Crystalline modification of mixtures comprising (a) a nickel-quencher corresponding to [2,2'-thio-bis(4-t-octylphenolate)-n-butylamine Nickel (II)] and (b) a 2-hydroxy-4-alkyloxybenzophenone corresponding to 2-hydroxy-4-n-octyloxybenzophenone wherein it h... | 09/16/2003 |
| 6605658 | Stabilizing mixtures for organic polymers comprising a pyrazolone, an organic phosphite or phosphonite and a hindered phenol Stabilizing mixtures for organic polymers comprising: a) at least one compound belonging to the group of pyrazolones; b) at least one compound belonging to the group of organic phosphites or phosphonites; c) at least one compound belonging to the group of stericall... | 08/12/2003 |
| 6444848 | Process for the preparation of symmetrical diacylhydrazines Process for the preparation of symmetrical diacylhydrazines having general formula (I): R1 --CO--NH--NH--CO--R1 wherein R1 represents a linear or branched C1 -C18 alkyl group; a linear or branched C | 09/03/2002 |
| 6414057 | Photochromatic compounds, process for their preparation and their use in polymeric materials ##STR1## Photochromic compounds belonging to the group of spiro-isoindolino-oxazines having general formula (I). The above photochromatic compounds having general formula (I) have excellent photochromic characteristics, excellent stress resistance and hig... | 07/02/2002 |
| 6407254 | 2-(2'-hydroxyphenyl)benzotriazoles used as U.V. stabilizers 2-(2'-hydroxyphenyl)benzotriazoles having general formula (I). The above 2-(2'-hydroxyphenyl)benzotriazoles are useful as light stabilizers for organic polymers. ##STR1##... | 06/18/2002 |
| 6403679 | Granular form of a mixture of a nickel-quencher and a benzophenone and process for its preparation Granular form of a mixture comprising: (a) a nickel-quencher corresponding to [2,2'-thio-bis(4-t-octyl-phenolate)-n-butylamine Nickel (II)]; (b) a 2-hydroxy-4-alkyloxybenzophenone corresponding to 2-hydroxy-4-n-octyloxybenzophenone; characterized in that ... | 06/11/2002 |
| 6268505 | 2-(2'Hydroxyphenyl) benzotriazoles and process for their preparation 2-(2'-hydroxyphenyl)benzotriazoles having general formula (I): ##STR1## The above 2-(2'-hydroxyphenyl)benzotriazoles can be used as light stabilizers for organic polymers.... | 07/31/2001 |
| 6140399 | Polymer compositions The invention relates to a polymeric composition comprising at least one engineering polymer and at least one phosphate ester flame retardant additive which is characterized in that the phosphate ester is a mixed tri (tertiary butylphenyl) phosphate ester... | 10/31/2000 |
| 6121456 | 2-(2'Hydroxyphenyl) benzotriazoles and process for their preparation 2-(2'-hydroxyphenyl)benzotriazoles having general formula (I): ##STR1## The above 2-(2'-hydroxyphenyl)benzotriazoles can be used as light stabilizers for organic polymers.... | 09/19/2000 |
| 6056897 | Stabilizer in solid form for organic polymers Solid form of a stabilizer for organic polymers consisting of one or more tocopherols, as such or in formulation, absorbed on porous polypropylene with a high crystallinity, in a quantity ranging from 30% to 85% by weight. The above tocopherols, as such o... | 05/02/2000 |
