Patent ID: 8975306
Filing Date: 2015-03-10
Classification: C08G

Abstract:
1. A viscoelastic foam made from a Part A composition and a Part B composition, the Part A composition comprising 20-30 weight percent isocyanate (NCO) and the Part B composition consisting of: (i) 50-80 parts by weight of propylene oxide-extended amine-based polyether polyol having substantially no ethylene oxide (EO) extension units; (ii) 20-50 parts by weight of a non-amine filled polyether polyol; (iii) 0.01-4 parts by weight of catalyst; (iv) 0-1 parts by weight of a cross-linking agent; (v) 1-6 parts by weight black paste; (vi) 0.35-0.6 parts by weight surfactant; (vii) 1-3 parts by weight water; wherein all values expressed as weight percents are based on the total weight of the Part A composition, and all parts by weight are parts by weight of the Part B composition, said Part B composition having 100 parts by weight total polyols.