Process for removing unwanted material from wanted material

Details Process for removing unwanted material from wanted material Process for removing unwanted material from wanted material

1995-05-09

1996-04-02

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 521174, 521918, 210767, 210735, 210702, C08G 1800, B01D 2100

Patent

active

055041248

ABSTRACT:
Process for removing unwanted material from wanted material containing water by bringing an isocyanate-containing prepolymer into contact with the materials, allowing the prepolymer to react with the water to form a flexible foam and removing the foam obtained from the wanted material.

REFERENCES:
patent: 4980072 (1990-12-01), Augustin et al.

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