Process for splitting up polyurethane waste into activated polyh

Details Process for splitting up polyurethane waste into activated polyh Process for splitting up polyurethane waste into activated polyh

1976-09-16

1978-09-19

Ivy, C. Warren

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

521164, 521165, 521167, 528 46, 528 72, 528 73, C08G 1882, C08G 1832

Patent

active

041152980

ABSTRACT:
The instant invention relates to a new process for splitting up polyurethane waste into activated polyhydroxyl compounds which may be reused for the production of polyurethane plastics. The process broadly comprises reacting the polyurethane waste with lactams or equilibrium associates of lactams and active hydrogen containing compounds at temperatures of from 150.degree. to 250.degree. C. If desired, the process may be conducted under elevated pressure.

REFERENCES:
patent: 2917471 (1959-12-01), Nelson
patent: 2937151 (1960-05-01), Ten Broeck
patent: 3632530 (1972-01-01), Kinoshita
patent: 3708440 (1973-01-01), Frulla
patent: 3738946 (1973-06-01), Frulla
patent: 3867373 (1975-02-01), Wagner
patent: 3983087 (1976-09-01), Tucker
patent: 4014809 (1977-03-01), Kondo

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