Aminopolyol stabilizers

Details Aminopolyol stabilizers Aminopolyol stabilizers

C - Chemistry, Metallurgy

08

G

403/31, 400/7433

C08G 18/32 (2006.01) C08G 18/08 (2006.01) C08G 18/40 (2006.01) C08G 18/66 (2006.01)

Patent

CA 2002991

- 32 - ABSTRACT A method is described for producing dispersions of polyurea and the like in polyols of increased stability by polmerizing an amine and an isocyanate in the presence of an aminoalcohol, typically an aminopolyol, having the following formula: Image 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 ?(OCaH2a)? and Image wherein a has a value of one to four; X is a member selected from the group consisting of OH, NH2 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. D-15929

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