| 摘要 |
The thermal stabilities of acetal polymers. e.g. oxymethylene/oxyethylene copolymers, are improved by blending with a minor amount of an ionic salt of a low molecular weight copolymer of an alpha-olefin and an alpha, beta ethylenically unsaturated carboxylic acid, e.g. a calcium salt of an ethylene/acrylic acid copolymer. The invention is particularly effective with pigmented acetal polymer composition. |
