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Polymethacrylate moulding matter with elevated heat distortion resistance and elevated resistance against thermal degradation
Polymethacrylate moulding matter with elevated heat distortion resistance and elevated resistance against thermal degradation
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机译:具有提高的抗热变形性和提高的抗热降解性的聚甲基丙烯酸酯模塑料
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摘要
The invention relates to a polymerisation process for the preparation of polymethacrylate moulding compositions having a high heat deflection temperature (heat resistance) and high stability to thermal degradation, in which at least 70% by weight of the polymethacrylate moulding composition is prepared at a monomer concentration of at least 5 mol per litre of reaction mixture, which preferably contains the monomers, the polymer formed therefrom and further polymerization auxiliaries. The reaction is preferably carried out batchwise (discontinuously), for example in a stirred reactor operated in batch mode.
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