Recycling of thermosetting polyurethane soft foam

Details Recycling of thermosetting polyurethane soft foam Recycling of thermosetting polyurethane soft foam

1991-06-21

1993-02-09

Michl, Paul R.

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

Synthetic resins

Process of treating scrap or waste product containing solid...

521 455, 264115, 264126, 264DIG69, C08J 1104, C08J 1106

Patent

active

051853809

ABSTRACT:
The invention relates to a process for recycling thermosetting polyurethane soft foams in which they are comminuted in a mill, irrespective of their initial shape, density and structure, and are then pressed under the influence of pressure and elevated temperatures to high-strength sheets of various structures.

REFERENCES:
patent: 2471043 (1945-06-01), Schenk
patent: 2878153 (1956-02-01), Hacklander
patent: 3263010 (1966-07-01), Shultz
patent: 3880977 (1975-04-01), Gealer et al.

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