Viscoelastic Polyurethane Foam
A a polyether polyol having a hydroxyl functionality of 2 an oh number within a range of from 50 to 65 mg of koh g and a.
Viscoelastic polyurethane foam. Visco elastic foam is an open celled polyurethane. It is a blend of polyurethane foam that was developed for airplane cushions by a nasa contract in the 1970s. Visco elastic foam is another term for memory foam. United states patent application 20110034575.
It is a blend of polyurethane foam that was developed for airplane cushions by a nasa contract in the 1970s. Foam supplies provides molded and free rise slabstock viscoelastic foam systems customized to exhibit a wider range of delayed recovery characteristics depending on end use. In the early 1990s because of their impact on ozone depletion the montreal protocol restricted the use of many chlorine containing blowing agents such as trichlorofluoromethane cfc 11. Development of more sustainable viscoelastic polyurethane foam 19 th world congress on materials science and engineering june 11 13 2018 barcelona spain.
Visco elastic foam is another term for memory foam. The difference between visco elastic foam and other types of polyurethane foam is its slow response and low resistance. The difference between visco elastic foam and other types of polyurethane foam is its slow response and low resistance. Memory foam consists mainly of polyurethane as well as additional chemicals increasing its viscosity and density it is often referred to as viscoelastic polyurethane foam or low resilience polyurethane foam the foam bubbles or cells are open effectively creating a matrix through which air can move.
The difference between visco elastic foam and other types of polyurethane foam is its slow response and low resistance. It is a blend of polyurethane foam that was developed for airplane cushions by a nasa contract in the 1970s. Marta munoz marti ana belen frances bueno and virtudes navarro banon. Higher density memory foam softens in reaction to body heat allowing it to mold to.
The invention relates to a polyether polyol composition for the preparation of polyurethane foams comprising. These gels can be customized to fit your unique application and serve as practical solutions to critical requirements such as comfort functionality and pressure management. Visco elastic foam is another term for memory foam. Visco elastic polyurethane foam.
Latex foam is either natural or manufactured latex rubber either material can cause reactions in people latex allergies are fairly common and will be triggered by small particles wearing from the foam.