| abstract |
Laminar structures comprising alternating layer stacks of the order-AC-[BD-AC-] n from polymer blends AC and BD, where n is from 4 to 36, wherein the layer thicknesses of layers AC and BD are less than 3 μm , wherein A and B are thermoplastic polymers and C and D are thermoplastic elastomers, wherein the thermoplastic polymer B has functional barrier properties, wherein the thermoplastic elastomers C and D in the blend polymers AC and BD The amounts of each are from 3 to 45% by weight, and polymer B and elastomer D are substantially incompatible. |