| 主权项 |
1. A process to improve the NOx stability of a rubber compared to tris(nonylphenyl)phosphite, comprising the step of adding at least one homopolymer polyphosphite or copolymer polyphosphite of Formulas (I), (II) or (Ill) to the rubber:Formula (I) wherein in Formula (I)
each R1, R2, R3 and R4 are the same or different and are independently selected from the group consisting of C12-20 alkyl, C12-22 alkenyl, C12-40 cycloalkyl, C12-40 cycloalkylene, C12-20 alkyl glycol ethers and Y—OH as an end-capping group;each Y is independently selected from the group consisting of C2-40 alkylene, C7-40 cycloalkylene, C3-20 alkyl glycol ethers, C3-40 alkyl lactone, and —R7—N(R8)—R9—;R7, R8 and R9 are independently selected from the group consisting of C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene and H;m is an integral value ranging from 1 to 100 inclusive;x is an integral value ranging from 2 to 1,000 with the proviso that when —O—Y is a C3-20 alkyl glycol ether, x is an integral value no less than 7; and further whereinno more than two of R1, R2, R3 and R4 are terminated with an hydroxyl group;Formula (II) wherein in Formula (II)
each R1, R2, R3, R4 and R5 are the same or different and are independently selected from the group consisting of C12-20 alkyl, C12-22 alkenyl, C12-40 cycloalkyl, C12-40 cycloalkenyl, C12-20 alkyl glycol ethers and A-OH and B—OH as an end-capping groups;each A and B are different and independently selected from the group consisting of C2-40 alkylene, C7-40 cycloalkylene, C3-20 alkyl glycol ethers, C3-40 alkyl lactone, and —R7—N(R8)—R9— wherein R7, R8 and R9 are independently selected from the group C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene and H;m and n are integral values ranging from 1 to 100 inclusive;x and y are integral values ranging from 1 to 1,000 wherein x+y sum to at least 3, with the proviso that when —O-A or —O—B are C3-20 alkyl glycol ethers, at least one of x or y is an integral value no less than 7; and further whereinno more than two of R1, R2, R3, R4 and R5 are terminated with an hydroxyl group; orFormula (III) wherein in Formula (III)
each R1, R2, R3, R4, R5 and R6 are the same or different and are independently selected from the group consisting of C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene, C3-20 methoxy alkyl glycol ethers, C3-20 alkyl glycol ethers or Y—OH (serving as an end capping moiety) for R1, R2, R3, R4, R5 and R6;Y is selected from the group consisting of C2-40 alkylene, C2-40 alkyl lactone, and C2-40 cycloalkyl and further comprises C2-20 alkyl glycol ethers when Y is in the polyphosphite backbone (e.g., ethylene, propylene, caprylactone, polyalkylene glycol);x is an integral value ranging from 8 to 1,000;
z is an integral value ranging from 0 to 1,000 with the proviso that when z is 8 or greater, then x is an integral value ranging from 1 to 1,000;m is an integral value ranging from 1 to 20;w is an integral value ranging from 1 to 1,000; andcombinations of formula (I) or Formula (II) or Formula (III). |
