B32B 5/08

Layered products characterised by the non- homogeneity or physical structure {, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts} characterised by structural features of a {fibrous or filamentary} layer the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres}