Amine-terminated graft copolymer dispersions and polyurethanes prepared therefrom
AssigneeBASF Wyandotte Corporation
InventorsJohn E. Davis, Moses Cenker
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Abstract
Stable graft polymer dispersions are prepared employing in situ free radical polymerization of ethylenically unsaturated monomer or monomers in an amine-terminated polyoxyalkylene polyether polymer. These dispersions are useful in the preparation of polyurethane foams which have improved tensile strength, elongation, load deflection and tear strength properties.
Claims22
A graft polymer dispersion prepared by the in situ polymerization in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
A process for the preparation of a graft polymer dispersion comprising polymerizing in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
A polyurethane prepared by the reaction of an organic polyisocyanate with a graft polymer dispersion prepared by polymerizing in the presence of an effective amount of a free radical initiator, an ethylenically unsaturated monomer or mixture of monomers in the amount of from 1 to 60 parts of monomer or mixture of monomers per 100 parts of the dispersion product in an amine-terminated polyoxyalkylene polyether polymer.
Dependencies are inferred from the claim text.