TUBES OBTAINED FROM A PROPYLENE POLYMER COMPOSITION

Title:

TUBES OBTAINED FROM A PROPYLENE POLYMER COMPOSITION

Document Type and Number:

WIPO Patent Application WO2002038670

Kind Code:

A3

Abstract:

The invention concerns tubes obtained from a propylene polymer composition having an elasticity modulus in flexure of 1400 to 2000 MPa and a melt flow index of 0.1 to 1 g/10 minutes comprising: 80 to 97 parts by weight of a propylene homopolymer (A) having an isostatics index of at least 0.96; and 20 to 3 parts by weight of a propylene statistic polymer (B) containing 45 to 75 % mol of ethylene and/or of an alpha -olefin containing 4 to 8 carbon atoms; the polymer (B)/polymer (A) intrinsic viscosity ratio being at least 1.55.

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Inventors:

DELAITE EMMANUEL (BE)
CUYPERS HERVE (BE)

Application Number:

PCT/EP2001/013134

Publication Date:

July 18, 2002

Filing Date:

November 08, 2001

Export Citation:

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Assignee:

POLYPROPYLENE BELGIUM NV (BE)
DELAITE EMMANUEL (BE)
CUYPERS HERVE (BE)

International Classes:

F16L9/12; C08L23/12; C08L23/10; C08L23/16; (IPC1-7): C08L23/12

Domestic Patent References:

WO1999035430A1

1999-07-15

Foreign References:

EP0316692A2

1989-05-24

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