Patent ID: 6964798

Claim:
A multiple layer structure comprising: a first skin layer; a radio frequency (“RF”) susceptible layer adhered to the first skin layer, the RF layer having a first component of a propylene based polymer, a second component of a non-propylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent; and a second skin layer adhered to the RF layer and opposed to the first skin layer; the structure having physical properties within the range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05 h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition processed into a film 9 mils in thickness measured in accordance to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHZ and over temperatures of 25 to 250° C. of the composition; h is the sample creep measured at 121° C. for a 1 inch strip of the composition under 27 psi loading; and, i the composition exhibits no strain whitening after being strained at moderate speeds of about 20 inches (50 cm) per minute to about 100% elongation (twice the original length) and the presence of strain whitening (indicated by 1) or lack thereof (indicated by 0) is noted.