Thermoplastic composition having high fluidity
The invention concerns a thermoplastic composition having high fluidity in the molten state, comprising at least: (a) one thermoplastic polymer matrix; (b) one oligomer chosen from the cyclic ester oligomers, the ether oligomers and mixtures thereof, said oligomer having a degree of polymerisation o...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention concerns a thermoplastic composition having high fluidity in the molten state, comprising at least: (a) one thermoplastic polymer matrix; (b) one oligomer chosen from the cyclic ester oligomers, the ether oligomers and mixtures thereof, said oligomer having a degree of polymerisation of between 2 and 25; and (c) a phenolic polymer; said compounds (b) and (c) being present in a weight ratio (c)/(b) varying from 0.25 to 6, and preferably from approximately 0.75 to 2.75. The invention also concerns a method for producing a composite item from such a composition by impregnating a reinforcement such as a fabric or a preform, the composite item obtained according to said method, and the use of an oligomer (b) in association with at least one phenolic polymer (c), as a plasticiser in a thermoplastic polymer matrix.
本发明涉及种在熔融状态下具有高流动性的热塑性组合物,该热塑性组合物至少包含:(a)种热塑性聚合物基质;(b)种选自环状酯低聚物、醚低聚物及其混合物的低聚物,所述低聚物具有在2与25之间的聚合度;以及(c)酚类聚合物;所述化合物(b)和(c)以从0.25至6、并且优选地从大约0.75至2.75变化的重量比(c)/(b)存在。本发明还涉及种用于通过浸渍增强物如织物或预成型件从此种组 |
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