Stock material or miscellaneous articles – Composite – Of polyamide
Patent
1994-07-05
1997-04-08
Le, Hoa T.
Stock material or miscellaneous articles
Composite
Of polyamide
138 26, 138 30, 138141, 138DIG7, 4284758, 4284761, 4284769, B32B 2708
Patent
active
056186290
ABSTRACT:
A flexible partition member for a hydraulic accumulator, which divides an interior of a shell of the accumulator into two sections that provide a gas chamber and a liquid chamber, respectively. The flexible partition member includes an integrally layered composite portion which includes at least one gas-barrier layer and at least one elastic layer, each gas-barrier layer containing a copolymer of ethylene and vinyl alcohol, and each elastic layer containing as a major component thereof a polyamide resin selected from the group consisting of nylon 6, nylon 66, nylon 6-10 and nylon 6-12. The integrally layered composite portion includes two adjacent layers which include a gas-barrier layer and an elastic layer.
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patent: 4698279 (1987-10-01), Sumiya et al.
patent: 4880213 (1989-11-01), Shinbori et al.
patent: 4890822 (1990-01-01), Ezure et al.
patent: 5036110 (1991-07-01), Moureaux
patent: 5336538 (1994-08-01), Kitamura
patent: 5403887 (1995-04-01), Kihira et al.
"Polymermodifizierte Polyamide", Kunstoff-plastics, Heft 1, 1985, s. 20-22.
Murakami Koyo
Takamatsu Shigeaki
Le Hoa T.
Tokai Rubber Industries, Inc.
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