Elastomeric material

Abstract

An elastomeric material is disclosed comprising a resin composition and a polyisocyanate composition for reacting with the resin composition and forming cross-linkages to define a matrix and having a non-reactive diluent dispersed therein. The resin composition comprises a first polyol, a second polyol, and a surfactant. The first polyol has an actual functionality of from 2.0 to 7.0 and a hydroxyl number of from 100 to 600 mg KOH/g. The second polyol, different than the first polyol, has an actual functionality of from 3.5 to 5.0 and a hydroxyl number of greater than 650 mg KOH/g. The surfactant comprises the reaction product of a mono- or a poly-functional initiator, at least one hydrophilic component having a polyether chain of from 4 to 40 carbon atoms and having at least one isocyanate-reactive group, and at least one hydrophobic group having an alkyl chain of from 4 to 50 carbon atoms. The elastomeric material has a weight-average equivalent weight between the cross-linkages of from 75 to 250 g/mol.

Dependencies are inferred from the claim text.