Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2006-01-10
2006-01-10
Vo, Hai (Department: 1771)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S306600, C428S308400, C428S319300, C428S319700, C428S319900, C442S327000, C442S370000, C156S079000, C264S046400, C264S046500
Reexamination Certificate
active
06984445
ABSTRACT:
A multi-layer sheet of the present invention comprises a thermoplastic resin foam sheet, a reinforcing sheet layered on integrated with at least one side of the thermoplastic resin foam sheet; the reinforcing sheet being formed by a non-woven fabric which comprises non-meltable fibers which are interwound with one another and which are bound together with a thermoplastic resin, the thermoplastic resin foam sheet having an aspect ratio Dz/Dxy of bubbles of 1.2 or more, and an expansion ratio of 5˜50 cc/g, and therefore the sheet is excellent in bending strength, compressive strength, thermo-forming property and dimensional stability as well as lightweight property, and so can ideally be used for an upholstery material for vehicles, a heat-insulation material, a buffer material and the like.
REFERENCES:
patent: 5055341 (1991-10-01), Yamaji et al.
patent: 5482667 (1996-01-01), Dunton et al.
patent: 6613172 (2003-09-01), Tsujimoto et al.
patent: WO 9921693 (1999-05-01), None
Fukuoka Takamasa
Higuchi Isao
Inui Yoshihiro
Okabe Masashi
Tsujimoto Michitaka
Kubovcik & Kubovcik
Sekisui Kagaku Kogyo Kabushiki Kaisha
Vo Hai
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