Polyurethane foam article and method of forming same

Details Polyurethane foam article and method of forming same Polyurethane foam article and method of forming same

C - Chemistry, Metallurgy

08

J

C08J 9/228 (2006.01) C08J 9/04 (2006.01) C08K 5/01 (2006.01) C08L 75/04 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2743359

A polyurethane foam article comprises a first lift, a second lift, and a pass- line therebetween. The polyurethane foam article comprises the reaction product of an isocyanate-reactive resin composition, an isocyanate, and an indicator dye in the presence of a blowing agent. The indicator dye imparts a color in the first and second lifts and at the pass-line at a first temperature below a decomposition temperature of the indicator dye. The indicator dye chemically decomposes to impart a change in color in the first and second lifts and at the pass-line at a second temperature which is at or above the decomposition temperature of the indicator dye.

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