Dow Global Technolgoies LLC

Rohm & Haas Electronic Materials LLC

Bret P Neese

Bharat Indu Chaudhary

Mohamed Esseghir

William J Harris

Chester J Kmiec

Lin Fu

Robert F Eaton

Martin William Bayes

Day-Chyuan Lee

Norman M Chin

A wireless-communications-tower component being at least partially formed from a polymer composite. The polymer composite comprises a thermoplastic polymer and a filler, where the thermoplastic polymer is non-foamed. The polymer composite has a thermal conductivity of at least 0.5 watt per meter Kelvin ('W/m?K') measured at 25 C. Such wireless-communications-tower components include radio frequency ('RF') cavity filters, heat sinks, enclosures, and combinations thereof.

Polymer composite components for wireless-communication towers

A lead-free composition comprising: (A) Polyvinyl chloride (PVC); (B) Bioplasticizer; (C) Calcium Carbonate; and (D) Calcined clay; with the combined weight of the calcium carbonate and calcined clay in the composition in the range of 1 to 15 weight percent, and the weight ratio of calcium carbonate to calcined clay in the range of 15:85 to 85:15. In one embodiment the invention is an insulation sheath for a wire or cable made from the lead-free composition described in the preceding embodiment. In one embodiment the invention is a wire or cable comprising the insulation sheath of the preceding embodiment.

Synergistic blends of calcium carbonate and calcined clay

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North Wales, PA, United States of America

Bret P Neese