Memory Foam is made with a polyurethane material. In order to increase its density, other chemicals are added which increases its viscosity level. The combination of the chemicals used determines the visco-elastic nature of the polyurethane foam and depending on such combination, the foam has the characteristic of being firmer in cooler temperature and softer in warmer environments. Higher density Memory Foam reacts with body heat. It reacts so that within a few minutes the product forms around the shape of the body. The property of the polyurethane foam could be demonstrated by pressing one’s hand on the foam and then on removing it. The foam retains a clear impression of the hand.
In 1970s, NASA developed Memory Foam for use in their space program. With the hope that with the ability of uniform distribution of pressure of such foam, the extreme G-force phenomenon would be taken care of. Ironically, the material was never used in any space program. In the 1990s, the product came onto the commercial market in the form of topper pads and then as foam mattresses.
A medical company, Tempur-Pedic, first realized the potential commercial application of the foam. They researched the various versions of the foam and […]

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