Polyurethanes prepared from solutions or dispersions of polymers of rigid polyaromatic monomers in polyols
AssigneeThe Dow Chemical Company
InventorsOomman P. Thomas, Robert B. Turner
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Abstract
The inclusion of a polymer containing rigid moieties in an active hydrogen-containing compound has surprisingly been found to yield significant and unexpected improvements in the physical properties of polyurethane and/or polyurea polymers prepared therefrom. In particular, cellular polyurethane and/or polyureas made from these solutions have excellent firmness and high moduli.
Claims37
A solution or colloidal dispersion of a polymer of an ethylenically unsaturated polyaromatic compound, said compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group, said polymer being dissolved or dispersed in an active hydrogen-containing compound having an average of at least two isocyanate-reactive groups per molecule.
A polyurethane and/or polyurea foam containing a polymer of an ethylenically unsaturated compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group.
A crosslinked, noncellular or microcellular polyurethane and/or polyurea polymer containing a polymer of an ethylenically unsaturated compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group.
Dependencies are inferred from the claim text.