| abstract |
The invention involves two components or more of radical scavengers of hindered phenols formulated in polyacetals to enhance thermal stability. One of components must be 1, 3, 5-trimethyl-2, 4, 6-tris(3, 5-di-tert-butyl-4-hydroxy benzyl)benzene. The other could be pentaerythrityl tetrakis-3-(3, 5-di-tert-butyl-4-hydroxy phenyl)propionate or octadecyl 3-(3, 5-di-tert-butyl-4-hydroxy phenyl)propionate or 1, 3, 5-tris(3, 5-di-tert-butyl-4-hydroxy benzyl)isocyanurate. These two components could combine with other radical scavengers or co-stabilizers to enhance fiber's performance. |