Patent ID: 8946330
Filing Date: 2015-02-03
Classification: B29C,B29K,C08L

Abstract:
1. A method for producing an extrusion blown molded product, comprising the steps of: providing a visbroken polypropylene composition comprising a random propylene copolymer (R-PP), a high melt strength polypropylene (HMS-PP) and a clarifier, wherein (a) the R-PP comprises units derived from propylene and at least another C (b) optionally the HMS-PP has a branching index g′ of less than 1.0, (c) the C comprises at least one α-nucleating agent clarifier, and (d) the polypropylene composition has a MFR wherein further the α-nucleating agent is selected from the group consisting of (i) C (ii) vinylcycloalkane polymer and vinylalkane polymer; and