Howard P. Klein

Epoxy curing agents

Polyether polyamine agents and mixtures therefor

Polyoxypropylene polyamine polyamide thermoplastic adhesives

Bis-quaternary ammonium salts as polyisocyanurate catalysts

Liquification of bis-carbonates of bis-glycidyl ethers

Preparation of hydroxyalkylcarbamates from six-membered cyclic carbonates

Process and formulations to remove paint and primer coatings from thermoplastic polyolefin substrates

Procedure for the partial alkoxylation of polyoxyalkylenamines

Polymer polyols from partially reacted polyamines

Process for preparing polyol-catalyst mixtures useful in the preparation of rigid polyurethane cellular products