Method for manufacturing an element with a synthetic foam...

B - Operations – Transporting – 29 – C

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18/1113, 154/90.

B29C 43/20 (2006.01) B29C 43/18 (2006.01) B32B 5/18 (2006.01) B32B 5/20 (2006.01) B32B 38/08 (2006.01) C07C 265/00 (2006.01) C08J 9/40 (2006.01) C08J 9/42 (2006.01) B29C 35/04 (2006.01) B29C 43/52 (2006.01)

Patent

CA 2011984

ABSTRACT "Method for manufacturing an element with a synthetic foam layer and element obtained by that method". A method for manufacturing an element with a synthetic foam layer, which is covered on at least one side with a finishing layer, whereby there is started from a layer (1) of substantially flexible mainly open cell synthetic foam which is at least partially impregnated with a liquid comprising NCO-groups, wherein, after having at least partially impregnated said synthetic foam layer (1) with said liquid comprising NCO-groups, said impregnated synthetic foam layer is brought together with a finishing layer (4, 4'), a whole (8) constituted of those layers (1, 4, 4') being compressed and, in said compressed state, steam is brought at least in said synthetic foam layer (1) at such a tempera- ture and during a sufficient time that said NCO-groups of said liquid should react with said steam. Figure 1

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