Polyurethane foam molding, method of producing the same, and...

Details Polyurethane foam molding, method of producing the same, and... Polyurethane foam molding, method of producing the same, and...

B - Operations, Transporting

29

C

B29C 39/12 (2006.01) B29C 44/04 (2006.01)

Patent

CA 2511527

At least two urethane stock solutions capable of forming polyurethane foam segments having different physical characteristics are charged into a mold and foamed under a predetermined molding pressure P to mold a one-piece polyurethane product including at least two molded portions having different physical characteristics. During the foaming step, the amounts of urethane stock solutions charged are determined so that the predetermined molding pressure P is obtained at any molded portion.

Au moins deux sortes de matières de polyuréthanne liquide avec des propriétés ou des caractéristiques différentes sont versées dans un moule et formées sous une pression de formage prédéterminée (P) et on moule ainsi en une pièce un moulage de polyuréthanne possédant au moins deux parties aux propriétés et aux caractéristiques différentes. Dans ce moulage en une pièce les quantités versées de matières de polyuréthanne liquide sont déterminées de façon que la pression de formage prédéterminées (P) soit obtenue à chaque partie de formage.

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