Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-02-23
1979-07-10
DeBenedictis, Sr., Thomas
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 95R, 260 95C, 521163, 528 73, 528 76, 528 85, B29H 1900
Patent
active
041607490
ABSTRACT:
The instant invention is directed to a process for dissociating cellular and non-cellular polyurethane resins into re-usable starting products for the isocyanate polyaddition process, wherein the polyurethane is reacted with associates of lactams and adduct-formers having at least two Zerewitinoff-active hydrogen atoms at from 150.degree. to 250.degree. C., optionally at elevated pressure, the improvement wherein from 35 to 1000 parts, by weight, based on 100 parts, by weight, of the polyurethane, of an associate mixture of:
REFERENCES:
patent: 2937151 (1960-05-01), Ten Broeck et al.
patent: 3117940 (1964-01-01), McElroy
patent: 3758444 (1973-09-01), Wagner et al.
patent: 3867373 (1975-02-01), Wagner
patent: 4013625 (1977-03-01), Wagner et al.
patent: 4014809 (1977-03-01), Kondo et al.
patent: 4035314 (1977-07-01), Lohr, Jr. et al.
Dietrich Werner
Schneider Gottfried
Wagner Kuno
Bayer Aktiengesellschaft
DeBenedictis, Sr. Thomas
Gil Joseph C.
Harsh Gene
Olson R. Brent
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