Title:
【発明の名称】多層管の製法および積層管
Document Type and Number:
Japanese Patent JP2614307
Kind Code:
B2
Abstract:
A method for producing a wound thermoplastic pipe, which contains at least one wound layer of thermoplastic material, provides that the wound layer is composed of a cross-sectionally rhomboidal or rectangular hollow-chamber profile (1). After achieving dimensional stability on the inner side (1d) and on both its side faces (1a, 1b), this hollow-chamber profile (1) is plasticised and wound onto the likewise plasticised outer layer (2b) of an inner tube (2). The side faces (1a, 1b) of neighbouring strands of the hollow-chamber profile (1) are thereby fused to each other.
Inventors:
Gunnar Promkuvist
Guyunter Sci Radar
Guyunta Simmons
Guyunter Sci Radar
Guyunta Simmons
Application Number:
JP6235789A
Publication Date:
May 28, 1997
Filing Date:
March 16, 1989
Export Citation:
Assignee:
O Salmon Yukiture KW H.P.A.B.
Hentze Geselsyaft Mitt Bescilenktel Haftung
Hentze Geselsyaft Mitt Bescilenktel Haftung
International Classes:
F16L9/12; B29C53/78; B29C63/06; B29D23/00; B29D24/00; B32B1/08; F16L9/16; F16L11/16; (IPC1-7): F16L9/12; B29C63/06; B29D23/00; B32B1/08
Domestic Patent References:
| JP5211416A | ||||
| JP5069181A | ||||
| JP62158278U | ||||
| JP5426725B2 |
Attorney, Agent or Firm:
Toshio Yano (2 outside)
Toshio Yano (1 outside)
Toshio Yano (1 outside)