Patent ID: 7019055

Claim:
A polymer which comprises polyvinyl chloride, polycarbonate, polyurethane, polyethylene, or polypropylene, containing about 0.005 to about 10 phr of a stabilizer having the formula: where X is —R 1 C═CR 1 —, —C≡C—, or each R is independently selected from hydrogen and R′, each R′ is independently selected from alkyl from C 1 to C 20 , aryl from C 6 to C 20 , alkaryl from C 7 to C 20 , and aralkyl from C 7 to C 20 ; each R 1 is independently selected from R, OR, RCO, ROCO, ROCO 2 , N(R) 2 , (R) 2 NCO, (R) 2 NCO 2 , SR, and halogen; each R 2 is independently selected from R, RCO, and ROCO, and two R 1 groups, two R 2 groups, or an R 1 group and an R 2 group can be bridged together to form a ring, except that when X is —R 1 C═CR 1 — at least one R 2 is not hydrogen; each R 3 is independently selected from R′, RCO, ROCO, ROCO 2 , OR, SR, and N(R) 2 ; R 4 is alkylene from C 1 to C 20 , arylene from C 6 to C 20 , (aryl)alkylene from C 7 to C 20 , (alkyl)arylene from C 7 to C 20 , alkanediyl from C 1 to C 20 , (aryl)alkanediyl from C 7 to C 20 , —CO-(alkylene)-CO— from C 1 to C 20 , —CO-arylene-CO— from C 6 to C 20 , —CO-(aryl)alkylene-CO— from C 7 to C 20 , and —CO-(alkyl)arylene-CO)— from C 7 to C 20 ; and q is 1 to 1000.