RU95120604A - LIGHT- AND HEAT-STABILIZING MIXTURE FOR POLYPROPYLENE FIBER, NOT HAVING A GREAT IMPACT ON COLOR CHANGE - Google Patents

Claims (16)

1. Stabilized polypropylene fiber that does not contain phenolic antioxidants or essentially does not contain them and has increased light resistance, increased heat resistance during prolonged exposure and increased resistance to gas bleaching, stabilized with a mixture
a) a mixed amine selected from the group consisting of 4,4'-hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) polycondensation product and 2,4-dichloro-6-tert-octylamino-s-triazine ; the polycondensation product of 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; N, N ', N'',N''' - tetrakis [4,6-bis (butyl- (2,2,6,6-tetramethylpiperidin-4-yl) amino) -c-triazin-2-yl ] -1,10-diamino-4,7-diazadecane; the polycondensation product of 4,4'-hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) and 2,4-dichloro-6-morpholino-s-triazine; poly [methyl-3- (2,2,6,6-tetramethylpiperidin-4-yloxy) propyl] siloxane; bis (2,2,6,6-tetramethylpiperidin-4-yl) cyclohexylene dioxy dimethyl methyl malonate; 1,3,5-tri {N-cyclohexyl-N- [2 (2,2,6,6-tetramethylpiperazin-3-one-4-yl) ethyl] amino-s-triazine; the polycondensation product of 4,4'-hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) and 2,4-dichloro-6-cyclohexylamino-s-triazine; and poly {N- [4,6-bi (butyl-2,2,6,6-tetramethylpiperidin-4-yl) amino) -c-triazin-2-yl] -1,4,7-triazanonan} -N '' - [4,6-bis (butyl-2,2,6,6-tetramethylpiperidin-4-yl) amino) -c-triazin-2-yl] amine;
b) a phosphite or phosphonite selected from the group consisting of three (2,4-di-tert-butylphenyl) phosphite; 3,9-di (2,4-di-tert-butylphenyl) -2,4,8,10-tetraoxa-3,9-diphospha [5.5] andecane; 2,2 ', 2''- nitrilo-tri [ethyl (3,3', 5,5'-tetra-tert-butyl-1,1 'biphenyl-2,2'diyl) phosphite; ethyl bis (2,4-di-tert-butyl-6-methylphenyl) phosphite; and tetrakis (2,4-ditret-butylphenyl) 4,4'-bis (diphenylene) phosphonite; and
c) hydroxylamine selected from the group consisting of N, N-dioctadecylhydroxylamine; N, N-dialkylhydroxylamine with the formula T ₁ T ₂ NOH, where T ₁ and T ₂ are a mixture of alkyls from a hydrogenated fatty amine; and N, N-dialkylhydroxylamine obtained by direct oxidation of an N, N-di (hydrogenated fat) amine; moreover, the components are mixed in the ratio (a): (b): (c): from 1: 1: 1 to 100: 2: 1.  2. The stabilized fiber according to claim 1, characterized in that component (a) is selected from the group consisting of a polycondensation product of 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; N, N ', N' ', N' '' - tetrakis [4,6-bis (butyl-2,2,6,6-tetramethylpiperidin-4-yl) amino-s-triazin-2-yl] -1 10-diamino-4,7-diazadecane; the polycondensation product of 4,4'-hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) and 2,4-dichloro-6-morpholino-s-triazine; poly [methyl-3 (2,2,6,6-tetramethylpiperidin-4-yloxy) propyl] siloxane; bis (2,2,6,6-tetramethylpiperidin-4-yl) cyclohexylene dioxy dimethyl methyl malonate; and 1,3,5-tri {N-cyclohexyl-N- [2- (2,2,6,6-tetramethylpiperazin3-one-4-yl) ethyl] amino-s-trizine.  3. The stabilized fiber according to claim 1, characterized in that component (b) is selected from the following group consisting of three (2,4-di-tert-butylphenyl) phosphite; 3,9-di (2,4-di-tert-butylphenyl) -2,4,8,10-tetraoxa-3,9-diphospha [5.5] an-decane; 2,2 ', 2' '- nitrile tri [ethyl (3,3', 5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite]; and ethyl bis (2,4-di-tert-butyl-6-methylphenyl) phosphite.  4. The stabilized fiber according to claim 1, characterized in that component (c) is N, N-dialkylhydroxylamine obtained by direct oxidation of N, N-di (hydrogenated fat) amine.  5. The stabilized fiber according to claim 1, characterized in that the mass ratio of the components (a): (b): (c) from 10: 1: 1 to 10: 2: 1.  6. The stabilized fiber according to claim 1, characterized in that the amount of the mixture of stabilizers is from 0.05 to 5% by weight of the fiber.  7. A method of increasing the resistance of polypropylene fiber to gas bleaching and fading without prejudice to all other stabilization properties, by adding a mixture of stabilizers according to claim 1.  8. A method of increasing the resistance of polypropylene fibers to ultraviolet rays in excess of that achieved using only conventional stabilizers by adding a mixture of stabilizers in accordance with paragraph 1.  9. A method of increasing the thermal stability of polypropylene fiber compared to that obtained by shading only traditionally used stabilizers by adding a mixture of stabilizers according to claim 1. 10. Stabilized polypropylene fiber that does not contain or essentially does not contain any phenolic antioxidants, and has increased light resistance, increased heat resistance during prolonged exposure and increased resistance to gas bleaching, said fiber is stabilized by a mixture
I) a mixed amine selected from the group consisting of the polycondensation product of 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; N, N ', N'',N''' - tetrakis [4,6-bi (butyl- (2,2,6,6-tetramethylpiperidin-4-yl) amino) -c-triazin-2-yl] -1,10-diamino-4,7-diazadecane; the polycondensation product of 4,4'-hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) and 2,4-dichloro-6-morpholino-s-triazine; poly [methyl-3- (2,2,6,6-tetramethylpiperidin-4-yloxy) propyl] siloxane; bis (2,2,6,6-tetramethylpiperidin-4-yl) cyclohexylene dioxy dimethyl methyl malonate; 1,3,5-tri {N-cyclohexyl-N- [2- (2,2,6,6-tetramethylpiperazin-3-one-4yl) ethyl] amino-s-triazine, and the polycondensation product 4,4'- hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) and 2,4-dichloro-6-cyclohexylamino-s-triazine; and
Ii) hydroxylamine selected from the group consisting of N, N-dioctadecylhydroxylamine; N, N-dialkylhydroxylamine with the formula T ₁ T ₂ OH, where T ₁ and T ₂ is a mixture of alkyls from a hydrogenated fatty amine; and N, N-dialkylhydroxylamine obtained by direct oxidation of an N, N-di (hydrogenated fat) amine; moreover, the ratio of components (I): (II) from 100: 1 to 1: 2 by weight.  11. The stabilized fiber according to claim 10, characterized in that component (I) is selected from the group consisting of the polycondensation product of 4,4'-hexamethylene bis (amino-2,2,6,6-tetramethylpiperidine) and 2,4 dichloro-6-tert-octylamino-s-triazine; the polycondensation product of 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; and N, N ', N' ', N' '' - tetrakis [4,6-bis (butyl (2,2,6,6-tetramethylpiperidin-4-yl) amino) -c-triazin-2-yl] 1,10-diamino-4,7-diazadecane.  12. The stabilized fiber according to claim 10, characterized in that component (II) is N, N-dialkylhydroxylamine obtained by direct oxidation of N, N-di (hydrogenated fat) amine.  13. The stabilized fiber according to claim 10, characterized in that the mass ratio of the components (I): (II) is from 10: 1 to 1: 1.  14. The stabilized fiber according to claim 10, characterized in that the amount of the mixture of stabilizers is from 0.05 to 5% by weight of the fiber.  15. A method of increasing the stability of stabilized polypropylene fibers to discoloration and fading with gases without affecting all other stabilization properties by adding a mixture of stabilizers according to claim 10.  16. A method of increasing the resistance of polypropylene fiber to ultraviolet rays in excess of that which can be achieved using only conventional stabilizers by adding a mixture of stabilizers according to claim 10.