1
Ronald Lloyd, Albert G Patchell, William O Murphy, Peter J Herbert: Embossed film product and adhesive coated strip formed therefrom. Smith & Nephew Plastics, Robert L Goldberg, David G Conlin, January 16, 1979: US04135023 (30 worldwide citation)

A melt-embossed polymer film with primary parallel grooves on one surface and secondary parallel grooves on the other surface such that the combined tapes of the grooves is at least substantially equal to the film thickness, the two sets of grooves being located at an angle to each other of not less ...


2
Ronald Lloyd, William O Murphy, Albert G Patchell, Peter J Herbert: Polymer fabric. Smith & Nephew Research, Robert F O Connell, January 9, 1979: US04133310 (22 worldwide citation)

A non-woven fabric is produced by stretching the film with on one surface a regular pattern of raised areas such as spaced hexagonal bosses and on the other surface a plurality of parallel grooves. Stretching is carried out in the groove direction. Preferably the polymer is a mixture of incompatible ...