It is an object of the present invention to provide a foamable thermoplastic elastomer composition which gives the stable foam.
The present invention provides a foamable thermoplastic elastomer composition which contains:(a) 10 to 90 parts by weight of one of an olefin-based resin and rubber having a melting or softening point of 140°C or lower,(b) 9 to 85 parts by weight of heat-expandable microcapsules expanding at 120 to 300°C,(c) 1 to 50 parts by weight of a volatile composition, wherein the components (a) to (c) total 100 parts by weight, and another invention provides a foamable thermoplastic elastomer composition which contains :the above said (a) to (c) and (d) 50 to 99 parts by weight of a thermoplastic resin, wherein the components (a) to (d) total 100 parts by weight, and also provides a method of producing the above foamable thermoplastic elastomer composition in two stages.
本发明的目的是提供一种能产生稳定泡沫的可发泡热塑性弹性体组合物。
本发明提供了一种可发泡热塑性弹性体组合物,它含有:(a) 10 至 90 份(按重量计)熔点或软化点为 140℃或更低的烯烃基
树脂和橡胶中的一种,(b) 9 至 85 份(按重量计)在 120 至 300℃下膨胀的可热膨胀微胶囊,(c) 1 至 50 份(按重量计)挥发性组合物,其中(a)至(c)组分的总重量为 100 份,另一项发明提供了一种可发泡热塑性弹性体组合物,它含有:上述(a)至(c)和(d) 50 至 99 份(按重量计)热塑性
树脂,其中(a)至(d)组分的总重量为 100 份(按重量计),还提供了一种分两个阶段生产上述可发泡热塑性弹性体组合物的方法。