Patent ID: 8106121
Filing Date: 2012-01-31
Classification: C08G

Abstract:
1. A graft polyol comprising small particles having a particle diameter of from 0.05 to 0.7 μm and large particles having a particle diameter of 0.4 to 5.0 μm, wherein said large particles have a larger particle size than said small particles, and wherein the graft polyol has a bimodal particle size distribution, the peaks of the large and small particles measured by the Fraunhofer diffraction method in combination with polarization intensity differential scattering do not overlap, and the graft polyol has a total solids content of from 5 to 65% by weight wherein the total content of the solids consists of a volume fraction of from 5 to 45% of the small particles and a volume fraction of from 95 to 55% of the large particles, wherein the volume fractions of the small and large particles sum up to 100%.