Impact resistant polyurethane foam and a method for manufacturin

Details Impact resistant polyurethane foam and a method for manufacturin Impact resistant polyurethane foam and a method for manufacturin

1990-10-01

1992-03-24

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521174, C08G 1814

Patent

active

050989367

ABSTRACT:
This invention relates to an impact resistant material composed of polyether-based micro-cellular polyurethane foam:more particularly, however, this invention relates to the impact resistant polyurethane foam having a new physical property, and a methods of foamed polyurethane as set forth hereunder, demonstrating a remarkable impact resistance effect and recovery force as well and furthermore, making it possible to control the specific gravity of molding in manufacture:mixing the prepolymer containing residual isocyanate or isocyanate monomer with resin consisting of ether-type polyol, plasticizer, and organic siloxane and casting this mixture for the preparation of foamed molding.

REFERENCES:
patent: 4195151 (1980-03-01), Dunleavy et al.

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