| 摘要 |
<p>A polymer of an ethylenically unsaturated hydrocarbon is stabilized with an organic sulphide or a phenol, together with a hydrazone of formula <FORM:0995484/C3/1> wherein Ar and Ar1 are aromatic nuclei at least one of which carries an hydroxyl group or a metal substituted hydroxyl group. Preferred stabilizers are dicetyl sulphide, dilauryl thiodipropionate, dodecanoic esters of thiodiglycol, sulphides containing hydroxyl groups; 1,3,5-trimethyl - 2,4,6 - tri - (3,5 - di - t. Bu - 4 - hydroxyl-benzyl) - benzene; and 2 - hydroxy -benzaldehyde - 2 - hydroxybenzoylhydrazone, 2 - hydroxybenzaldehydebenzoylhydrazone, 2- hydroxybenzaldehyde - 2 - sodium oxybenzoylhydrazone, and 2-hydroxybenzaldehyde - 3 - hydroxyl -4-carbonyl pyridine hydrazone. The polymer may be polyethylene or polypropylene and applications specified are film, fibre, filaments, sheet, bars, and rods.</p> |
