Patent ID: 6471905
Filing Date: 2002-10-29
Classification: B29C,C08G,C08K

Abstract:
A process for the production of polyurethane mouldings, comprising reacting (I) a polyisocyanate component, with (II) an isocyanate-reactive component, in the presence of (III) from 0.5 to 20 parts by weight, based on 100 parts by weight of component (II), of an internal mould release agent, consisting of:a) at least one ammonium or metal salts of phosphoric acid esters of the formula (I) â€ƒwherein: R: represents a C1-C10 alkyl radical, X: represents Oâ€”Y+ or OR1 â€ƒin which R1 represents R, and Y: represents: (1) an NH4 group, (2) a group corresponding to the general formula: â€ƒwherein: R2 to R5: are each independently selected from the group consisting of: (i) a hydrogen atom, (ii) a C1-C10 alkyl radical which may be mono- or polysubstituted by the groups OR6 or NR6R7,in which R6 and R7 each independently represent a hydrogen atom or a C1-C10 alkyl radical; and (iii) correspond to the general formula: wherein: â€ƒR8 and R9: each independently represent a hydrogen atom or a C1-C10 alkyl radical: â€ƒm: represents a whole number from 2 to 4; â€ƒand â€ƒn: represents a whole number from 1 to 5; with the proviso that at least one of R2, R3, R4 and R5 represents a hydrogen atom; or (3) a metal of the first main group of the periodic system of elements (MendelÃ©eff); and, optionally, one or more components selected from the group consisting of b) and c), wherein: b) comprises one or more ammonium salts of carboxylic acids corresponding to the formula (II) R10COOâˆ’Z+â€ƒâ€ƒ(II), â€ƒwherein: R10 represents a hydrogen atom, a C1-C9 alkyl radical, or a C6-C10 aryl radical, which may optionally be substituted by C1-C3 alkyl groups; and Z represents: (1) an NH4 group, or (2) a group corresponding to the formula: â€ƒwherein: R2 to R5: are each independently selected from the group consisting of: (i) a hydrogen atom, (ii) a C1-C10 alkyl radical which may be mono- or polysubstituted by the groups OR6 or NR6R7, in which R6 and R7 each independently represent a hydrogen atom or a C1-C10 alkyl radical; and (iii) correspond to the general formula: wherein: â€ƒR8 and R9: each independently represent a hydrogen atom or a C1-C10 alkyl radical: â€ƒm: represents a whole number from 2 to 4; â€ƒand â€ƒn: represents a whole number from 1 to 5; with the proviso that at least one of R2, R3, R4 and R5 represents a hydrogen atom; and c) comprises one or more ammonium or metal salts of sulfonic acids corresponding to the general formula (III) â€ƒwherein: R11: represents a hydrogen atom, a C1-C9 alkyl radical, or a C6-C10 aryl radical, which may optionally be substituted by C1-C3 alkyl groups; and Y: represents: (1) an NH4 group; (2) a group corresponding to the formula: â€ƒwherein: R2 to R5: are each independently selected from the group consisting of: (i) a hydrogen atom, (ii) a C1-C10 alkyl radical which may be mono- or polysubstituted by the groups OR6 or NR6R7, in which R6 and R7 each independently represent a hydrogen atom or a C1-C10 alkyl radical; and (iii) correspond to the general formula: wherein: â€ƒR8 and R9: each independently represent a hydrogen atom or a C1-C10 alkyl radical: â€ƒm: represents a whole number from 2 to 4; â€ƒand â€ƒn: represents a whole number from 1 to 5; with the proviso that at least one of R2, R3, R4 and R5 represents a hydrogen atom; or (3) a metal of the first main group of the periodic system of elements (MendelÃ©eff).