Patent ID: 8802212

Claim:
An article of manufacture comprising: a first polymer piece that comprises a first weld location having first dielectric properties, the first weld location comprising one or more first additives comprising nanoparticles that selectively affect the first dielectric properties; a second polymer piece that comprises a second weld location having second dielectric properties; a thermal welded seam that joins the first weld location to the second weld location, the thermal weld being created by bringing the first weld location into abutment with the second weld location and delivering microwave energy to the first weld location and the second weld location in a controlled manner to promote a first microwave absorbance in the first weld location that is governed by the first dielectric properties and a second microwave absorbance in the second weld location that is governed by the second dielectric properties, the first microwave absorbance generating a first melt-flow condition in the first weld location that is compatible with a second melt-flow condition generated in the second weld location by the second microwave absorbance.