Title:
【発明の名称】多層プラスチック管及びその製造方法
Document Type and Number:
Japanese Patent JP3219407
Kind Code:
B2
Abstract:
A multi-layered plastic pipe particularly suitable for use as an intake manifold of an internal combustion engine is provided. The present pipe includes a hollow plastic core, at least one spacer member provided on the hollow plastic core and an outer layer integrally provided on the outer peripheral surface of the hollow plastic core excepting the spacer member. The spacer member is preferably formed from a plastic material, and the outer layer is also formed from a plastic material.
Inventors:
Tatsuya Nakagawa
Yasuo Ezaki
Yasuo Ezaki
Application Number:
JP31798590A
Publication Date:
October 15, 2001
Filing Date:
November 26, 1990
Export Citation:
Assignee:
Excel Co., Ltd.
International Classes:
B29C33/00; B29C33/12; B29C45/14; B29C45/56; B32B1/08; B29C49/00; B29C49/20; B29C49/22; B29C49/48; B29C70/08; B29C70/72; B29D23/00; B32B3/14; B32B27/08; F02M35/10; F02M35/104; F16L9/133; B29C49/04; B29K105/06; B29L9/00; (IPC1-7): B29C49/00; B29C45/14
Domestic Patent References:
| JP60168625A | ||||
| JP63239037A | ||||
| JP63141713A | ||||
| JP6213890A | ||||
| JP1174426A | ||||
| JP5124660A | ||||
| JP5162852A | ||||
| JP63165116A | ||||
| JP6364713A | ||||
| JP5158461A |
Attorney, Agent or Firm:
Kazuo Kobashi (1 person outside)