Injection moulding process for soles in expansible and...

Details Injection moulding process for soles in expansible and... Injection moulding process for soles in expansible and...

B - Operations, Transporting

29

D

B29D 35/04 (2010.01) B29D 35/12 (2010.01) B29C 44/04 (2006.01) B29C 65/66 (2006.01)

Patent

CA 2199084

This invention concerns an injection moulding process for soles in expansible and cross-linking "EVA" based compounds characterised in that during the cooling stage of the moulded sole the spontaneous shrinkage of the same is arrested by means of a template consisting of a rigid shaped plate placed on the sole so that its edge connects with a perimeter edge realised specifically on the upper surface of the sole, whose dimensions reduce no further either during the remaining cooling phase or after cooling.

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