C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/00 (2006.01) C08K 5/07 (2006.01) C08K 5/098 (2006.01) C08K 5/3472 (2006.01) C08K 5/3492 (2006.01)
Patent
CA 2524704
The present invention relates to highly compatible hydroxyphenyltriazine UV- absorbers and to their use in organic polymers, especially for protecting the contents of transparent plastic packages such as pharmaceuticals, cosmetics, personal care products, shampoos and the like, and especially foodstuffs such as beverages, fresh vegetables or meat, from the deleterious effects of ultraviolet radiation. Especially advantageous is the combined use of a UV absorber and an oxygen scavenger. lt has been found that certain highly compatible tris-aryl-s-triazines are especially effective towards this end when incorporated in the containers or films in which such materials are stored.
L'invention concerne des absorbeurs UV à base d'hydroxyphényltriazines à haute compatibilité et leur utilisation dans des polymères organiques, en particulier pour protéger le contenu d'emballages transparents en plastique, tel que des produits pharmaceutiques et cosmétiques, des produits d'hygiène, des shampooings et similaires, ainsi que des produits alimentaires tels que des boissons, de la viande ou des légumes frais contre les effets néfastes des rayonnements ultraviolets. L'utilisation combinée d'un absorbeur UV et d'un désoxygénant est particulièrement avantageuse. Il s'avère que certaines tris-aryl-s-triazines à haute compatibilité sont particulièrement efficaces à cet effet lorsqu'elles sont incorporées dans les contenants ou les films dans lesquels de telles matières sont stockées.
Bonora Michela
Lazzari Dario
Morvillier Marie-Raphael
Vitali Manuele
Zagnoni Graziano
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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