| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple stage straw resisting cracking even if used at low temperatures, and capable of easily penetrating lids of various materials without having to increase the sharpness of its tip in excess. SOLUTION: In the multiple stage straw 10 where two or more tubes of different diameters are telescopically combined, the innermost tube 1 is made from a polypropylene type resin composition. Blended with a nucleating agent of 0.08 to 0.25 pts.weight, with a bending modulus of 1,350 to 1,600 MPa and a melt flow rate of 1.0 to 15.0 g/10 min based on 100 pts.weight resin components containing polypropylene resins. COPYRIGHT: (C)2004,JPO
|
