Patent ID: 8258214

Claim:
A polyolefin film, comprising: a) a polyolefin selected from the group consisting of polyethylene homopolymers, polyethylene copolymers, polypropylene homopolymers, and polypropylene copolymers; and b) an effective amount of a stabilizing composition, comprising: (1) a sterically hindered phenol of formula I or II: wherein: x is independently 0, 1, 2, or 3; R 1 , R 2 , and R 3 is independently hydrogen, and C 1 -C 12 alkyl, and C 5 -C 10 cycloalkyl, provided that at least one of R 1 , R 2 , and R 3 is not hydrogen; and R 4 is independently C 1 -C 6 alkyl; and (2) a phosphite selected from the group consisting of triphenyl phosphite, tris(nonyl-phenyl)phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl pentaerythritol diphosphite, tris(2,4-di-tert-butylphenyl)phosphite, diisodecyl pentaerythritol diphosphite, bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite, bis(2,4-dicumylphenyl)pentaerythritol diphosphite, tristearyl sorbitol triphosphite, tris(dipropyleneglycol)phosphite, tetrakis(2,4-di-tert-butylphenyl)-4,4′-biphenylene diphosphonite, and mixtures thereof; wherein the article has a gel content of 200 to 400 μm gel sized formations of from 0.01 to 0.5 gel per square meter (gel/m 2 ) of the article.