Patent ID: 6034197
Filing Date: 2000-03-07
Classification: C08G

Abstract:
A polyol blend comprising:a) a first polyol comprising one or more polyether polyols having a functionality of about 2, a hydroxyl number ranging from about 20 to about 90, and an equivalent weight ranging from about 600 to about 2800;b) a second polyol comprising one or more polyether polyols having a functionality ranging from about 4 to about 8, a hydroxyl number ranging from about 200 to about 600, and an equivalent weight ranging from about 90 to about 280; andc) a third polyol comprising one or more polyether polyols having a functionality ranging from about 2.5 to about 4, a hydroxyl number ranging from about 15 to about 500, and an equivalent weight ranging from about 180 to about 4000,wherein, said polyol blend is capable of reacting with an isocyanate compound in the presence of water to produce a foam having a density ranging from about 0.5 to about 5 pounds/ft.sup.3, a compressive strength ranging from about 3 to about 20 psi, and an airflow ranging from about 10 to about 1000 cc/minute.