HALOGEN-FREE, FLAME RETARDANT COMPOSITION COMPRISING CROSSLINKED SILANE-g-EVA

• Main Authors: CHEN, GIVEN, JING, HUANG, LOTUS, HUA, GUO, DAVID, HONGFEI, YAN, WILSON, XIAOWEI
• Format: Patent
• Language: English; French
• Published: 01.12.2011
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; DYES; ELECTRICITY; INSULATORS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP

Halogen-free, flame retardant compositions comprising in weight percent based on the weight of the composition: A. 20 to 60% TPU/Si-g-EVA polymer blend in which the Si-g-EVA is crosslinked, B. 1 to 25% organic phosphate ester, C. 30 to 60% metal hydrate, and D. 0.1 to 10% epoxidized novolac. Optionally, the compositions further comprise in weight percent based on the weight of the composition, one or more of: E. 0.01 to 0.5% anti-dripping agent, F. 0.1 to 2% additive; and G. 0.1 to 5% filler. L'invention concerne des compositions retardatrices de flamme, exempte d'halogène, comprenant, en pour cent en poids sur la base du poids de la composition : A. 20 à 60 % de mélange polymère TPU/Si-g-EVA dans lequel le Si-g-EVA est réticulé, B. 1 à 25 % d'ester phosphate organique, C. 30 à 60 % d'hydrate métallique, et D. 0,1 à 10 % de novolaque époxydée. Facultativement, les compositions comprennent en outre en pour cent en poids sur la base du poids de la composition, un ou plusieurs parmi : E. 0,01 à 0,5 % d'agent anti-égoutture, F. 0,1 à 2 % d'additif, et G. 0,1 à 5 % de charge.