Inv Nylon Chemicals Americas, LLC

Pbi Performance Products, Inc.

Alexander Lanier Gulledge

Brian C Benicewicz

Gregory S Copeland

Bobby G Dawkins

Benjamin D Herzog

John F Buzinkai

James Michael Shurish

Chee Sern Lim

Warren P Steckle, Jr

Isaac K Iverson

Jr Warren P Steckle

The present disclosure relates to the use of thermoplastic resins in millimeter wave network applications. More specifically, it relates to polyamide materials meeting the requirements of dielectric performance in such applications.

Thermoplastic resins for network applications

A method of making a polybenzimidazole (PBI) includes the steps of: reacting, in a solution, an organic compound having at least 2 amino groups with an organic aldehyde adduct, the reactants comprise at least 8% by weight of the solution. A solvent of the solution may be selected from the group of: N,N-dimethylacetamide (DMAc), N,N-dimethylformamide (DMF), dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), tetramethylene sulfone, and combinations thereof. The organic aldehyde adduct may be an organic aldehyde bisulfite adduct. The organic aldehyde portion of the organic aldehyde adduct being aliphatic, alicyclic, aromatic, heterocyclic, or heteroaromatic aldehyde or mixtures thereof. The polybenzimidazole may have an intrinsic viscosity of at least 0.40 dl/g.

Method of making polybenzimidazole

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Columbia, SC, United States of America

Alexander Lanier Gulledge