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METHOD FOR STABILIZING HALOGEN-FREE THERMOPLASTIC RECYCLATES, STABILIZED PLASTIC COMPOSITIONS, AND MOLDING COMPOUNDS AND MOLDED PARTS PRODUCED THEREFROM
METHOD FOR STABILIZING HALOGEN-FREE THERMOPLASTIC RECYCLATES, STABILIZED PLASTIC COMPOSITIONS, AND MOLDING COMPOUNDS AND MOLDED PARTS PRODUCED THEREFROM
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机译:稳定无卤热塑循环体,稳定的塑料成分以及由其生产的模塑料和模制件的方法
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摘要
The invention relates to a method for stabilizing halogen-free thermoplastic recyclates or pre-damaged plastics against oxidative, thermal, and/or actinic degradation. In the method according to the invention, at least one alditol or cyclitol is introduced into a halogen-free thermoplastic recyclate as a component, and optionally in addition thereto, at least one primary antioxidant and/or at least one secondary antioxidant is introduced into a halogen-free thermoplastic recyclate. By virtue of the method according to the invention, plastic recyclates can be stabilized against oxidative, thermal, and/or actinic degradation with a high degree of effectiveness and in a very environmentally friendly and inexpensive manner. The invention additionally relates to corresponding recyclate-based plastic compositions, to molding compound and molded parts produced therefrom, to stabilizer compositions, and to the use thereof for stabilizing halogen-free thermoplastic recyclates against oxidative, thermal, and/or actinic degradation.
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