Upholstered seat having an air-permeable covering and a cold foa

Details Upholstered seat having an air-permeable covering and a cold foa Upholstered seat having an air-permeable covering and a cold foa

1984-08-15

1986-10-21

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

5481, 428 71, 428 76, 4283099, 4283144, B32B 326

Patent

active

046185321

ABSTRACT:
The present invention is directed to an upholstered seat consisting of an in situ foam core based on a cold foam formulation and an air-permeable covering and to a process for integrally producing an upholstered seat with improved standards of comfort by back foaming a covering material in a mold, characterized in that, in a split mold of which the dividing plane preferably extends in the vicinity of the actual seat surface, a sealed foam-impermeable covering material is applied to the internal contour of the mold and that part of the covering material which forms the actual seat surface is clamped in the dividing plane of the mold, the entire mold cavity is filled with foam by metering the foam in correspondingly large quantities, after which the sealing layer around the fully reacted foam core, where it consists of an air-impermeable material, is destroyed by a mechanical treatment, such as needle punching, flexing, compression, knocking, or by solvents to at least such an extent that it becomes permeable to air.

REFERENCES:
patent: 3246621 (1966-04-01), Copeland
patent: 3258511 (1966-06-01), McGregor, Jr.
patent: 3431331 (1969-03-01), Pincus et al.
patent: 3932252 (1976-01-01), Woods
patent: 4544598 (1985-10-01), Meiller et al.

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