2.23.2010

US Patent 3,899,144: Powder Contrail Generation

  • Patent granted Aug. 12, 1975
  • Abstract:
  • Light scattering pigment powder particles, surface treated to minimize interparticle cohesive forces, are dispensed from a jet mill deagglomerator as separate single particles to produce a powder contrail having maximum visibility or radiation scattering ability for a given material.

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