Abstract:
Sprayable polyurethane compositions, in the form of spray polyurethane foams or low rise adhesives, when spray applied in the area of spray application at any given time, having monomeric MDI contents in the spray application area of no more than 20 parts per billion as measured in accordance with PEL Method 47 and having a viscosity of from 100 to 3,000 cP at 25° C. according to ASTM D2196.
Abstract:
Sprayable polyurethane compositions, in the form of spray polyurethane foams or low rise adhesives, when spray applied in the area of spray application at any given time, having monomeric MDI contents in the spray application area of no more than 20 parts per billion as measured in accordance with PEL Method 47 and having a viscosity of from 100 to 3,000 cP at 25° C. according to ASTM D2196.
Abstract:
A system and method for forming a polyurethane foam includes supplying an isocyanate component from a source of isocyanate to a proportioner. A resin component from a source of resin is supplied to a metering unit and an additive having an unstable state from a source of additive is supplied to the metering unit. The resin component and the additive form a reactive mixture when combined. The system and method includes delivering the reactive mixture by the metering unit to an accumulator and storing the reactive mixture in the accumulator. The system and method further includes demanding a supply of the reactive mixture with the proportioner and supplying the reactive mixture by the accumulator to the proportioner and mixing the reactive mixture with the isocyanate component by the proportioner to form the polyurethane foam.