Engineered polyolefin materials with enhanced surface durability
AssigneeSolvay Engineered Polymers
InventorsRui-dong Ding, Satchit Srinivasan
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Abstract
An article formed from a polyolefin resin blend reaction product that includes at least one propylene-based polyolefin-metal salt and at least one property-modifying agent. Optionally, the article includes a polyethylene-based polyolefin-metal salt, thermoplastic elastomer, such as a hydrogenated styrene-butadiene random copolymer or any other styrenic block copolymer, semi-crystalline polyolefin component, or the like, or combinations thereof. Such articles have enhanced scratch and mar resistance while still retaining acceptable impact toughness. Methods of preparing articles and the blends used to form such articles are also part of the invention.
Claims22
An article formed from a polyolefin blend comprising a propylene-based polyolefin-metal salt that is a reaction product of a propylene-containing polymer functionalized with a first hydrophilic moiety and at least one metal ion present in an amount sufficient to at least partially neutralize the first hydrophilic moiety, and a property-modifying agent.
A method of preparing an article from a polyolefin blend which comprises:
- providing a polymer component comprising at least one propylene-based polyolefin-metal salt that is a reaction product of a propylene-containing polymer functionalized with a first hydrophilic moiety and at least one metal ion present in an amount sufficient to at least partially neutralize the first hydrophilic moiety at a sufficiently high temperature to at least partially melt the propylene-based polyolefin-metal salt, and a property-modifying agent;
- and
- forming the polymer component into a portion of an article having an external surface, wherein the portion forms a surface of the article that when subjected to a 20 Newton load has less than about a 2.5 on the scratch rating scale and has no ribbing or tearing.
Dependencies are inferred from the claim text.