Seat cushion and process of producing same

Details Seat cushion and process of producing same Seat cushion and process of producing same

1997-08-04

1999-08-31

Cranmer, Laurie K.

Chairs and seats

Bottom or back

Cushioned

297DIG1, 156 78, A47C 702

Patent

active

059443898

ABSTRACT:
A seat cushion comprises a cushion main body formed of a polyurethane molded foam; a seat member formed of a slab flexible polyurethane foam; and a sheet having a gas permeability; wherein part of a foamable liquid for forming the polyurethane molded foam permeates in the sheet and the seat member, and is foamed when the foamable liquid having not permeated in the sheet and the seat member is foam molded, whereby the seat member is integrated with a seat surface portion of the cushion main body through the sheet.

REFERENCES:
patent: 4755411 (1988-07-01), Wing et al.
patent: 4837881 (1989-06-01), Kondo et al.
patent: 4995926 (1991-02-01), Urai
patent: 5460873 (1995-10-01), Ogawa et al.
patent: 5702159 (1997-12-01), Matsuoka et al.

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