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US 8,507,628 B2Granted
Propylene based polymers for injection stretch blow molding
AssigneeFina Technology, Inc.
InventorsMichael Musgrave, Dang Le, Luyi Sun, David Smith
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Abstract
Injection stretch blow molded (ISBM) articles and methods of forming the same are provided herein. In one embodiment, the ISBM articles generally include a propylene based random copolymer having a molecular weight distribution of from about 9 to about 20. In another embodiment, the ISBM articles generally include a propylene based random copolymer formed from a Ziegler-Natta catalyst including a succinate internal donor.
Claims6
A method of forming an injection stretch blow molded article formed of a single polymer, comprising:
- providing the single polymer, wherein the single polymer is a propylene based random copolymer comprising a molecular weight distribution of from about 9 to about 20 and the single polymer is formed in single loop reactor;
- injection molding the propylene based random copolymer into a preform;
- and
- stretch-blowing the preform into an article.
1 more element
Dependencies are inferred from the claim text.