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    • 3. 发明授权
    • Multilayer polymer system comprising at least one engineering
thermoplast layer and at least one soft touch composition layer, and
compositions to be used therefore
    • 包括至少一个工程热塑性塑料层和至少一个软触摸组合物层的多层聚合物体系以及因此使用的组合物
    • US5750268A
    • 1998-05-12
    • US731127
    • 1996-10-09
    • Jean-Michel MaceJacques Moerenhout
    • Jean-Michel MaceJacques Moerenhout
    • B32B27/08C08L53/02C08L77/00B32B9/04
    • B32B27/08C08L53/02Y10T428/31728Y10T428/31732Y10T428/31739Y10T428/31743Y10T428/3175
    • A multilayer polymer composition comprising at least one relatively soft touch layer comprising at least one block copolymer derived from a monovinyl aromatic and a conjugated diene, and at least one layer of relatively hard, rigid thermoplastic which have intimate contact with each other, characterized in that it comprises: (a) at least one relatively soft layer composition comprising (i) a polar engineering thermoplast in an amount of from 5 to 50 wt % (ii) from 0 to 80 wt % of a selectively hydrogenated block copolymer having at least two poly(monovinyl aromatic) blocks and at least one poly(conjugated diene) block, wherein the residual ethylenic unsaturation after hydrogenation is at most 5%, (iii) from 5 to 85 wt % of a selectively hydrogenated block copolymer having at least two poly(monovinyl aromatic) blocks and at least one poly(conjugated diene) block wherein the residual ethylenic unsaturation after hydrogenation is at most 5%, said block copolymer being functionalized by means of introduced polar groups, and (iv) a plasticizer, in an amount of from 0 to 40 wt %, wherein all ingredients amounts relative to the weight of the total soft layer composition and the sum of the respective amounts in the ingredients (i) to (iv) is 100 wt %, and (b) at least one relatively hard, rigid layer, comprising at least a polar engineering thermoplast; and starting soft touch compositions therefor.
    • 一种多层聚合物组合物,其包含至少一种包含至少一种衍生自单乙烯基芳族化合物和共轭二烯的嵌段共聚物的相对软的触感层,以及至少一层彼此紧密接触的相对硬的刚性热塑性塑料,其特征在于, 其包括:(a)至少一种相对软的层组合物,其包含(i)极性工程热塑性塑料,其量为5至50重量%(ii)0至80重量%的选自氢化的嵌段共聚物,其具有至少两个 聚(单乙烯基芳族)嵌段和至少一种聚(共轭二烯)嵌段,其中氢化后的残余烯属不饱和度为至多5%,(iii)5-85重量%的选择性氢化嵌段共聚物,其具有至少两个聚 (单乙烯基芳族)嵌段和至少一种聚(共轭二烯)嵌段,其中氢化后的残余烯属不饱和度为至多5%,所述嵌段共聚物由我官能化 和(iv)0至40重量%的增塑剂,其中所有成分相对于总软层组合物的重量和成分中相应量的总和(i )至(iv)为100重量%,和(b)至少一个相对硬的刚性层,其至少包含极性工程热塑性塑料; 并开始软触摸组合物。