Photochromatic compositions endowed with light fatigue resistance and photochromatic articles containing them.
WO9923093A1
2-(2'-hydroxyphenyl)benzotriazoles used as u.v. stabilisers
WO9902495A1
Light-stabilizing synergic mixtures for organic polymers
US6353044B1
Light-stabilized organic polymers
WO9847893A1
Enamine derivatives for use as antioxydants for polymers
CA2226552A1
Stabilizer in solid form for organic polymers
ITMI980138A1
"2- (2'-HYDROXYPHENYL) BENZOTHRIAZOLS CONTAINING A 2,4- IMIDAZOLE- DINEDIONE GROUP AND PROCEDURE FOR THEIR PREPARATION"
ITMI972476A1
New 2-(2'-hydroxyphenyl)benzotriazole(s) derivatives used as light stabilisers - prepared by reacting 2-(2'-hydroxyphenyl)benzotriazole with e.g. 2,4-imidazolidine:di:one-1,3-di:methylol in presence of concentrated sulphuric
US5844042A
Process for obtaining granular forms of additives for organic polymers
ITMI971573A1
PHOTOCROMATIC COMPOUNDS, PROCEDURE FOR THEIR PREPARATION AND THEIR USE IN POLYMERIC MATERIALS
ITMI970719A1
New 2-(2'-hydroxyphenyl)benzotriazole(s) derivatives used as light stabilisers - prepared by reacting 2-(2'-hydroxyphenyl)benzotriazole with e.g. 2,4-imidazolidine:di:one-1,3-di:methylol in presence of concentrated sulphuric
US5747601A
Dihydropyridines as vulcanization accelerators for natural or synthetic rubbers
EP0763540A1
New crystalline form of tetrakis-(2,4-di-t-butylphenyl)-4,4'-biphenylene diphosphonite
EP0684250A1
New poly(pentaerythrityl diphosphonate) and its use in self-extinguishing thermoplastic compositions