Elastollan® 688AN is specifically formulated for extruded profile, sheet and film applications. It exhibits excellent abrasion resistance, toughness, high transparency, low gel, and low yellowness index. It has excellent damping characteristics and outstanding resistance to tear propagation. Elastollan® 688AN conforms to the FDA food contact regulations as described in book 21, section 177.2600 and 177.1680 for both wet and dry food contact applications respectively. Elastollan® 688AN is supplied uncolored in diced or pelletized form.

  tpu 是名为热塑性聚氨酯弹性体橡胶,是一类加热可以塑化、溶剂可以溶解的弹性体。主要分为聚酯型和聚醚型两类,呈白色无规则球状或柱状颗粒。聚氨酯热塑性弹性体的特点是耐磨性优异、耐臭氧性极好、硬度大、强度高、弹性好、耐低温，有良好的耐油、耐化学药品和耐环境性能，在潮湿环境中聚醚型水解稳定性远超过聚酯型。这些良好的性能使得热塑性聚氨酯被广泛应用于鞋材、电缆、服装、汽车、医药卫生、管材、薄膜和片材等许多领域。TPU被公认为是一种绿色环保、性能优异的新型高分子材料，已成为发展 的热塑性材料之一。