Foaming agent composition for polyurethane and method of preparing polyurethane foam using same

Abstract

Disclosed are a foaming agent composition for polyurethane including glycerol carbonate as a chemical foaming agent and a physical foaming agent or a chemical foaming agent in a predetermined ratio (physicochemical foaming agent), and polyurethane foam prepared using the same. The polyurethane foam has very low global warming potential and ozone depletion potential and simultaneously improved properties such as thermal conductivity, water absorption, flexural strength, and compressive strength that meet the standard for thermal insulation materials made of rigid urethane foam, and is effective at preventing internal shrinkage.

Dependencies are inferred from the claim text.