Performance high vinyl block copolymer compositions and uses thereof
AssigneeKraton Polymers U.S. LLC
InventorsYonghua ZHOU, Ruidong DING, Liqiang MA
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Abstract
Provided herein are improved performance high vinyl block copolymer compositions. The compositions may include a block copolymer and a polyolefin. The block copolymer may have a microstructure characterized by a vinyl content of equal to or greater than about 60%. The block copolymer may be a styrenic block copolymer. The polyolefin may include a polypropylene. Additional additives may be optionally added to the composition depending on the end-use application. The compositions may find utility in the preparation of various articles such as medical products including sterilized tubing, bags, and the like, films and injection molded articles.
Claims20
A composition comprising i) a styrenic block copolymer present in an amount of from about 5 wt. % to about 95 wt. % based on the total weight of the composition and ii) a polyolefin present in an amount of from about 2 wt. % to about 98 wt. % based on the total weight of the composition wherein the composition has an Isotropic Ratio of less than about 1.4 as measured on extruded film with process temperature of less than about 250° C.
Dependencies are inferred from the claim text.