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    • 7. 发明授权
    • Biodegradable polymer mixture
    • 可生物降解的聚合物混合物
    • US08937135B2
    • 2015-01-20
    • US13121298
    • 2009-09-21
    • Tobias Heinz SteinkeHans-Helmut GörtzJürgen AhlersFreddy GruberGabriel Skupin
    • Tobias Heinz SteinkeHans-Helmut GörtzJürgen AhlersFreddy GruberGabriel Skupin
    • C08G65/32
    • C08L67/02C08K3/01C08K3/013C08K5/0008C08L33/062C08L33/08C08L33/10C08L35/06C08L63/10C08L67/025C08L67/04C08L69/00C08L97/02C08L2205/03C08L2666/02C08L2666/18
    • The present invention relates to biodegradable polymer mixtures comprising i) 40% to 95% by weight, based on the total weight of components i to ii, of at least one polyester based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds; ii) 5% to 60% by weight, based on the total weight of said components i to ii, of polyalkylene carbonate, particularly polypropylene carbonate; iii) 0% to 60% by weight, based on the total weight of said components i to iii, of at least one biodegradable homo- or copolyester selected from the group consisting of polylactic acid, polycaprolactone and polyhydroxyalkanoate, and/or of an inorganic or organic filler; iv) 0% to 10% by weight, based on the total weight of said components i to ii, of an epoxy-containing copolymer based on styrene, acrylic ester and/or methacrylic ester, and v) 0% to 15% by weight of an additive selected from the group consisting of lubricant, antiblocking agent, antistat, UV absorber, UV stabilizer, thermal stabilizer, dye, pigment, colorant, plasticizer, fertilizer and active crop protection ingredient. The present invention further relates to processes for producing biodegradable polymer mixtures, to the use of biodegradable polymer mixtures in the production of moldings, films or fibers and also moldings, films or fibers comprising biodegradable polymer mixtures.
    • 本发明涉及可生物降解的聚合物混合物,其包含i)基于脂族或脂族和芳族二羧酸和脂族二羟基化合物的至少一种聚酯的基于组分i至ii的总重量的40重量%至95重量% ii)5重量%至60重量%,基于所述组分i至ii的总重量,聚碳酸亚烷基酯,特别是聚碳酸丙烯酯; iii)基于所述组分i至iii的至少一种选自聚乳酸,聚己酸内酯和聚羟基链烷酸酯的至少一种可生物降解的均聚物或共聚酯的总重量为0重量%至60重量%,和/或无机 或有机填料; iv)基于苯乙烯,丙烯酸酯和/或甲基丙烯酸酯的基于环氧基的共聚物,基于所述组分i至ii的总重量,0重量%至10重量%,和v)0重量%至15重量% 选自润滑剂,防粘连剂,抗静电剂,UV吸收剂,UV稳定剂,热稳定剂,染料,颜料,着色剂,增塑剂,肥料和活性作物保护成分的添加剂。 本发明还涉及用于生产可生物降解的聚合物混合物的方法,在生产模制品,薄膜或纤维中使用可生物降解的聚合物混合物,以及包含可生物降解的聚合物混合物的模制品,薄膜或纤维。