FLEXIBLE TUBE FOR ENDOSCOPE AND METHOD FOR PRODUCING SAME

Title:

FLEXIBLE TUBE FOR ENDOSCOPE AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2011/040215

Kind Code:

A1

Abstract:

Disclosed is a flexible tube (10), comprising a flexible tube material (14) and a double-layered outer skin layer (15) which consists of an inner layer (17) coating the entire peripheral face of the flexible tube material (14) and an outer layer (18) coating the entire peripheral face of the inner layer (17). The outer skin layer (15) is obtained by supplying two kind of resins, which are overlaid in a molten state, into a single mold at the same time to form the double-layer laminate consisting of the inner layer (17) and the outer layer (18). As the resins forming the inner layer (17) and the outer layer (18), a combination of a soft resin and a hard resin, wherein the difference in 100% modulus value that indicates the hardness after molding is 10 MPa or more and the difference in melt viscosity at a molding temperature of 150-200oC that indicates the fluidity in the molten state is 2500 PaS or less, should be selected.

Inventors:

TAKAHASHI NOBUHARU (JP)

Application Number:

PCT/JP2010/065714

Publication Date:

April 07, 2011

Filing Date:

September 13, 2010

Export Citation:

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Assignee:

FUJIFILM CORP (JP)
TAKAHASHI NOBUHARU (JP)

International Classes:

A61B1/00; G02B23/24

Foreign References:

JPS55112505U	1980-08-07
JP2000254235A	2000-09-19
JPS55112505U	1980-08-07
JPS628728A	1987-01-16

Other References: