Process for the production of polyurethane plastics

Details Process for the production of polyurethane plastics Process for the production of polyurethane plastics

1979-10-29

1981-02-17

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521137, 521160, 521163, C08G 1814

Patent

active

042516382

ABSTRACT:
This invention relates to a process for the production of optionally cellular polyurethane plastics using a reactive filler obtained by finely grinding a distillation residue of the type accumulating in the commercial production of tolylene diisocyanate. It is possible in this way to recycle the previously unuseable slag-like residues and at the same time to improve the mechanical properties of the polyurethane plastics filled with them.

REFERENCES:
patent: 3455836 (1960-07-01), Shultz et al.
patent: 3634361 (1972-01-01), Shultz et al.
patent: 3897314 (1975-07-01), Liebsch et al.
patent: 3935132 (1976-01-01), Gerkin et al.
patent: 4000099 (1976-12-01), Nemoto et al.
patent: 4049590 (1977-09-01), Falkenstein et al.
patent: 4071505 (1978-01-01), Meckel et al.
patent: 4096101 (1978-06-01), Blahak et al.
patent: 4143008 (1979-03-01), Zwolinski et al.

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