Abstract: The invention is concerned with a multilayer carrier film for supporting a fluid synthetic resin composition impregnated fibrous mat against a surface, for example the inside surface of a pipe, during the curing of the resin. The film comprises a nylon layer (preferably nylon 6) having on one surface a layer of a polyamide copolymer having a softening point at a temperature below 170.degree. C. (for example a nylon 6/12 copolymer in which the nylon 12 component lies in the range from 35 to 55% by weight) and on the other surface a layer of a weldable synthetic plastic composition, for example a polyethylene ionomer. The fibrous mat which may consist of polyester, acrylic or polypropylene fibres is heat-bonded to the polyamide copolymer layer of the multilayer film. The film is resistant to delamination by the resin composition.

Abstract: A decorative packaging film comprises a base film of a synthetic polymeric material (an olefinic polymer) containing a highly light absorbent pigment, for example carbon black, and at least one surface layer of a second synthetic polymeric material, which is light transmittable and which contains a solid particulate material, for example calcium carbonate, having a particle size of from 0.1 to 10 microns and present in an amount from 1 to 40% by weight, the combination having been stretched to cause the formation of voids in the surface layer or layers at the sites of the particles of the particulate material. The appearance of the film varies from an intense opalescence to a lustrous metallic appearance.