Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1995-02-01
1996-04-30
Marquis, Melvyn I.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283188, B32B 2700
Patent
active
055123619
ABSTRACT:
Integrally molded polyurethane foam products that are free of bubbles formed from the gas evolved during foaming of foaming materials, that do not allow the foaming materials to exudate and that have surfaces with adequate gas permeability and soft to the touch, giving sufficient satisfaction at use, being free of stuffy and other unpleasant feelings to the touch. The present invention also relates to an integrally molded polyurethane foam product comprising a skin member that is formed into a desired form by sewing and a polyurethane foam that is made by foaming a foaming material being poured into said skin member, in which the skin member is made by laminating a fabric and a synthetic resin film and is provided with 5 to 100 through holes per cm.sup.2 in a diameter of 0.01 to 0.3 mm. The foaming pressure of the polyurethane material used in the production of these integrally molded polyurethane foam products is preferably 0.5 to 2.0 kg/cm.sup.2.
REFERENCES:
patent: 4891081 (1990-01-01), Takahashi et al.
patent: 5194325 (1993-03-01), Jones
Ishikawa Hiyoshi
Kitano Taishi
Mizuno Fumio
Takeuchi Nobuo
Yamaguchi Tomonari
Inoac Corporation
Marquis Melvyn I.
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