Cycloaliphatic polyphosphite polymer stabilizers
A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.
1. A copolymeric polyphosphite having a Structure (IV)
wherein
R 1 , R 2 , R 3 , R 5 and R 6 can be the same or different and independently selected from the group consisting of C 1-20 alkyl, C 2-22 alkenyl, C 6-40 cycloalkyl, and C 7-40 cycloalkenyl;
Y is selected from the group consisting of C 2-40 alkylene, C 2-40 cycloaliphatic carboxylic esters and C 3-40 cycloalkylenes
x ranges from 8 to 1,000; further wherein
z ranges from 1 to 1,000;
m ranges from 5 to 100; and
w ranges from 1 to 1,000.
2. The copolymeric polyphosphite of claim 1 wherein
Y is a polymeric polyalkylene glycol selected from the group consisting of polyethylene glycol and polypropylene glycol.
3. The copolymeric polyphosphite of claim 1 in combination with a synthetic polymer.
4. The copolymeric polyphosphite of claim 3 in which the synthetic polymer is a polyolefin.