Aminopolyol stabilizers
AssigneeUnion Carbide Chemicals and Plastics Company Inc.
InventorsKenneth L. Hoy, Glenn A. Taylor, Chinsoo Lee
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AssigneeUnion Carbide Chemicals and Plastics Company Inc.
InventorsKenneth L. Hoy, Glenn A. Taylor, Chinsoo Lee
Estimating the term…
A method is described for producing dispersions of polyurea and the like in polyols of increased stability by polymerizing an amine and an isocyanate in the presence of an aminoalcohol, typically an aminopolyol, having the following formula: ##STR1## wherein A and A' are individually connective atoms which may be same or different, and are selected from the group consisting of carbon and oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is a member selected from the group consisting of nitrogen, NR, R being alkyl or aryl, or CR', R' being hydrogen, alkyl or aryl; D is a member selected from the group consisting of ##STR2## wherein a has a value of one to four; X is a member selected from the group consisting of OH, NH.sub.2 or H; X' is a member selected from the group consisting of H or NHR' where R' is hydrogen, alkyl or aryl; n and d are individually integers of 0 to 10 and the sum of n and d is at least one and does not exceed 10; s is either 0 or 1; y is an integer of 0 to 4; and m is an integer of at least about 16, with the proviso that when B is nitrogen and either n or d is zero, X and X' are not both H. The dispersions are useful for the production of polyurethane foams.
In a method of preparing a dispersion of a polymer in a polyol or combination of polyols which includes solution copolymerizing an amine and an isocyanate in a polyol or combination of polyols the improvement which comprises copolymerizing in the presence of a sufficient amount of a compound having the formula:
A method of preparing a dispersion of a polymer in a polyol or combination of polyols, the method comprising copolymerizing an amine and an isocyanate in a polyol or combination of polyols in the presence of a sufficient amount of a compound having the formula:
In a dispersion composition containing a polymer dispersed in a polyol or combination of polyols, the improvement which comprises:
A dispersion composition comprising a polymer dispersed in a polyol or combination of polyols, said polymer comprising an amine and an isocyanate which are copolymerized in the presence of a sufficient amount of a compound having the formula:
Dependencies are inferred from the claim text.