Patent Number: 6,166,144

Title: Polypropylene resin composition

Abstract: A polypropylene resin composition having the following conditions (a) and (b): (a) the resin composition can be drawn such that a diameter d of a strand obtained when the resin composition is extruded from a circular die having an inside diameter D is d.ltoreq.0.25.times.D, and (b) the ratio of the maximum value of elongational viscosity to the maximum value of shear viscosity, measured at the same temperature and the same rate of strain is: elongetional viscosity/shear viscosity.gtoreq.5. The polypropylene resin composition is suitable for processing such as blow molding, vacuum forming, film extrusion, extrusion coating, spinning, foam processing, etc.

Inventors: Yamaguchi; Masayuki (Mie, JP), Suzuki; Kenichi (Mie, JP), Miyata; Hiroshi (Mie, JP)

Assignee: Tosoh Corporation

International Classification: C08L 23/00 (20060101); C08L 23/10 (20060101); C08L 23/16 (20060101); C08L 045/00 ()

Expiration Date: 12/26/2017