| 摘要 |
A stabilized polyolefine-based polymeric composition is disclosed characterized in that it contains as stabilizer an organic polyamine having the general formula: <IMAGE> (I) wherein R1, R2, R3 and R4 are equal to or different from each other and are an alkyl group having from 1 to 4 carbon atoms; R5 is hydrogen or an alkyl group having from 1 to 4 carbon atoms; A is an alkylene group having from 2 to 10 carbon atoms; B is a divalent aliphatic, cycloaliphatic, aromatic or alkylaromatic radical, which can contain hetero atoms such as O, S, N and P either in the chain or as side substituents; and N IS A WHOLE NUMBER BETWEEN 2 AND 1000. The organic polyamine has an inherent viscosity of between 0.01 and 1 dl/g, and is employed in an amount equal to or less than 5% by weight. The stabilized polymeric composition may be in the form of fibers, filaments, films or other shaped articles. The organic polyamines themselves are novel, as are certain difunctional amine intermediates. Processes for preparing same are also disclosed. |
