Title:
圧力管
Document Type and Number:
Japanese Patent JP4208718
Kind Code:
B2
Abstract:
The invention relates to a pressure pipe with increased long-term pressure resistance which is comprised of a polypropylene composition. The polypropylene composition is comprised of a polyproyplene copolymer which is at least partially crystallised in the beta -modification.
Inventors:
Karl Eppner
Jürgen Emmich
Franz Rümer
Jürgen Emmich
Franz Rümer
Application Number:
JP2003544094A
Publication Date:
January 14, 2009
Filing Date:
November 06, 2002
Export Citation:
Assignee:
Borealis Technology Oy
International Classes:
F16L9/12; C08F210/06; C08F210/16; C08K5/00; C08L23/14; F16L9/127
Domestic Patent References:
| JP2001522904A | ||||
| JP10506952A | ||||
| JP9235328A | ||||
| JP5170932A | ||||
| JP7126409A | ||||
| JP10278067A | ||||
| JP2001233923A |
Foreign References:
| US20030008091 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Masakazu Aoyama
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Masakazu Aoyama
Yasuhiko Murayama
Shinya Mitsuhiro