PERFLUOROCHEMICAL MOLDING MATERIAL AND BLOW-MOLDED CONTAINER

Title:

PERFLUOROCHEMICAL MOLDING MATERIAL AND BLOW-MOLDED CONTAINER

Document Type and Number:

WIPO Patent Application WO/1999/046309

Kind Code:

A1

Abstract:

A molding material which comprises a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer capable of melt molding and has a melt flow rate of 3 to 50 g/10 min and a melt tension at 370 °C of 2 to 20 gf; and a blow-molded container formed from the material which has an extremely smooth inner surface, an even wall thickness, and a capacity as large as 20 liters or above and is used for storing or transporting a high-purity liquid chemical. The inner surface of the container has surface roughnesses R¿a? and R¿max? of 0.07 $g(m)m or lower and 5 $g(m)m or lower, respectively, and the container has wall thickness fluctuations of up to 60 %.

More Like This:

JPH0735083

INDUSTRIAL APPLICABILITY: A method for molding a hollow molded product.

Inventors:

INAOKA TAKASHI (JP)
ASANO KOZO (JP)
YAMAGUCHI YASUYUKI (JP)
OKANISHI KEN (JP)
YOSHIDA MINORU (JP)
SUZUKI TATSUO (JP)
SHIOTSUKI KEIZO (JP)

Application Number:

PCT/JP1999/001125

Publication Date:

September 16, 1999

Filing Date:

March 08, 1999

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
INAOKA TAKASHI (JP)
ASANO KOZO (JP)
YAMAGUCHI YASUYUKI (JP)
OKANISHI KEN (JP)
YOSHIDA MINORU (JP)
SUZUKI TATSUO (JP)
SHIOTSUKI KEIZO (JP)

International Classes:

B29C49/00; B65D1/12; C08L27/18; B29C49/04; (IPC1-7): C08F214/26; C08L27/18; B65D1/00; B29C49/00

Domestic Patent References:

WO1996024625A2

1996-08-15

Foreign References:

JPH07292200A	1995-11-07
JPH08109225A	1996-04-30
JPH07304832A	1995-11-21
JPH0770397A	1995-03-14
JPH02286735A	1990-11-26
JPH0841267A	1996-02-13
JPH07169334A	1995-07-04
JPH02102247A	1990-04-13
JPH0952920A	1997-02-25

Other References: