Light-stabilized polymers comprising light-stabilizing...

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 5/00 (2006.01) C08G 69/02 (2006.01) C08G 69/48 (2006.01) C08K 5/13 (2006.01) C08K 5/3435 (2006.01) C08K 5/51 (2006.01) C08K 5/526 (2006.01) C08K 5/5317 (2006.01) C08L 77/02 (2006.01)

Patent

CA 2446453

Light-stabilized polymers having a high concentration of light-stabilizing moieties covalently bonded along the polymer chain are disclosed. A method of making light-stabilized polymers having a high concentration of light- stabilizing moieties covalently bonded along the polymer chain is also disclosed. Further, a method of making thermoformable articles is disclosed. The method includes mixing one or more light-stabilized polymers having a high concentration of light-stabilizing moieties covalently bonded along the polymer chain with one or more additional polymeric materials, which are substantially free from light-stabilizing moieties.

La présente invention concerne des polymères photostabilisés ayant une concentration élevée en fragments photostabilisants liés par liaison covalente le long de la chaîne polymère. L'invention a également pour objet un procédé permettant la production de polymères photostabilisés ayant une concentration élevée en fragments photostabilisants liés par liaison covalente le long de la chaîne polymère. Cette invention concerne également un procédé permettant la production d'articles thermoformables. Ledit procédé comprend le mélange d'un ou de plusieurs polymères photostabilisés ayant une concentration élevée en fragments photostabilisants liés par liaison covalente le long de la chaîne polymère, avec une ou plusieurs matières polymères supplémentaires qui sont sensiblement dépourvues de fragments photostabilisants.

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