Donald H. Champion

Polyether amide from mixture of polyether diamine

Process for the production of cyclohexane by liquid phase hydrogenation of benzene

Preparation of foams using polyfunctional organic acids

Aliphatic polyureas from polyoxyalkylene polyamines, aliphatic diisocyanates and sym-dialkylethylenediamines

Alkyl substituted piperazines as chain extenders in polyurea elastomer systems

Purification of polyamines derived from polyhydroxyl compounds

Thermoplastic thermosettable polyamide from poly(oxytetramethylene) diamine and poly(oxytetramethylene) oligomer polyamine

Synthesis of diaza crown ethers

Aliphatic polyureas from polyoxyalkylene polyamines

Two-step method for preparing cyclic ureas