发明授权
US06068934A Sandwich structure comprising outer films having low permeability to hydrocarbons 失效
三明治结构包括对烃具有低渗透性的外部膜

Sandwich structure comprising outer films having low permeability to
hydrocarbons
摘要:
The present invention provides a sheet molding compound consisting in a sandwich structure comprising a central layer of reinforced uncured heat hardenable sheet molding compound; and two outer layers of a release film having low permeability to hydrocarbons comprising at least one layer (i) of a polyamide/polyolefin alloy having a polyamide matrix and at least one layer (ii) of a polyolefin.
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