Method of making cushion material from foam slabs and comminuted

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156 78, 156254, 156256, 264112, 264321, 264DIG7, 264DIG69, 264152, B32B 518, B29D 2700

Patent

active

044432860

ABSTRACT:
A cushion material and method of making the same, in which a soft polyurethane foam is cut into a slab in a predetermined form; applied to or injected into this polyurethane foam slab at a predetermined portion thereof a bonding agent or forming keeping binder which has a property to be solidified in reaction under certain conditions; said slab is shaped as compressed in a pair of forming dies into a predetermined cubic form, or integrally bonded on a cushion layer constituted by said slab of polyurethane foam another cushion layer made of polyurethane foam chips shaped in a predetermined cubic form by chopping or comminuting soft polyurethane foam scrap into chips, applying a bonding agent to them, and compressing them in a pair of forming dies.

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