Patent ID: 6541549
Filing Date: 2003-04-01
Classification: C07F,C08K

Abstract:
A method for stabilizing a thermoplastic polyolefin comprising adding to said polyolefin a non-xenoestrogenic, phosphorus-containing stabilizer of the structure where Z is selected from the group consisting of sulfur and sulfone, m is 0 or 1, n is an integer of at least 2, R12 and R13 are independently selected from the group consisting of hydrogen and alkyl of from 1 to 8 carbon atoms, R1, R2, R3, R4, R5, R6, R7, and R8 are independently selected from the group consisting of hydrogen, alkyl groups, aralkyl groups of from 1 to 8 carbon atoms, or halogen groups and Q is where R11 is alkyl or aralkyl.