Abstract: The present invention relates to a thermally insulated internal combustion engine where a polyurethane foam entirely or to some extent surrounds the external surface of one or more parts of the internal combustion engine. The present invention further relates to a process for the production of a thermally insulated internal combustion engine by taking an engine part, using a mold to surround the part that is to be surrounded with foam within the internal combustion engine part, thus producing a cavity between engine part and mold, charging a polyurethane reaction mixture into the cavity, allowing the polyurethane reaction mixture to complete its reaction to give a polyurethane foam, and removing the mold.

Abstract: The present invention provides a polyurethane foam for an automobile steering wheel. More particularly, the present invention relates to polyurethane foam formed by using a predetermined amount of a polyol having various functional groups and OH values and a predetermined amount of isocyanate having a certain function, along with water as a foaming agent, thereby preventing the environmental problems caused by use of the conventional fluorine-based or pentane-based foaming agent and also improving durability such as water resistance.

Abstract: The present invention provides a polyurethane foam for an automobile steering wheel. More particularly, the present invention relates to polyurethane foam formed by using a predetermined amount of a polyol having various functional groups and OH values and a predetermined amount of isocyanate having a certain function, along with water as a foaming agent, thereby preventing the environmental problems caused by use of the conventional fluorine-based or pentane-based foaming agent and also improving durability such as water resistance.