| 摘要 |
<p>A method of stabilizing a polymer film coating or molded article against the action of light, moisture, and oxygen is disclosed. The method comprises incorporating in said polymer a stabilizingly and synergistically effective amount of:
<UnorderedLists id="ula01" listStyle="none"><ListItem>(A) A 2,2,6, 6-tetraalkylpiperidine compound, or the acid addition salts or complexes with metal compounds thereof; and</ListItem><ListItem>(B) A tris-aryi-s-triazine compound represented by the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="37" wi="89" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein X, Y and Z are each aromatic, carbocylic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R' through R<Sup>9</Sup> is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.</ListItem></UnorderedLists></p> |
