Stain Resistant Article with Olefin Block Copolymer and Process

摘要

The present disclosure provides a food contact article. The food contact article includes a polymeric composition composed of a neat olefin block copolymer. The food contact article exhibits a total color change value, ΔE, of less than 20. The polymeric composition provides an article that is suitable for food contact application, the article having softness and stain resistance.

主权项

1. A food contact article comprising:
a polymeric composition comprising a neat ethylene/octene multiblock copolymer having less than 1 wt % oil, the ethylene/octene multiblock copolymer comprising hard segments and soft segments joined in a linear fashion and comprising from 10 mol % to 20 mol % units derived from octene in the soft segment; and the article having a total color change value, ΔE, of less than 20, wherein ΔE=√{square root over (ΔL2+Δa2+Δb2)}, wherein ΔL is the difference in lightness between the stained an unstained article, Δa is the difference in green to red scale between the stained and unstained article, and Δb is the difference in blue to yellow scale between the stained an unstained article.