The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2003
Filed:
Apr. 09, 2001
Koji Yamaguchi, Kyoto, JP;
Mitsuhide Nogami, Kyoto, JP;
Yasuo Yamabe, Shiga, JP;
Masanori Nakamura, Kyoto, JP;
Katsuo Matsuzaka, Kyoto, JP;
Takehiro Yamada, Kyoto, JP;
Satoshi Koma, Shiga, JP;
Kenji Mizukawa, Shiga, JP;
Hideki Sakakihara, Shiga, JP;
Toshihide Nonaka, Shiga, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
As the first object, the present invention intends to provide high-pressure composite pipes which show remarkable pressure resistance and optimum applicability in various uses and which can be economically manufactured in a light weight. To achieve this object, a high-pressure composite pipe of the present invention comprises a pipe-shaped inner layer made of a synthetic resin, a reinforcing layer made of a stretched polyolefin resin sheet and wound on an external circumferential surface of the inner layer, and an outer layer made of a synthetic resin and disposed on an external circumferential surface of the reinforcing layer. The winding direction of the reinforcing layer is oriented at a predetermined angle relative to the axis of the pipe. Between the inner layer and the reinforcing layer and between the outer layer and the reinforcing layer, adhesion layers having affinity to these layers are interposed.