Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-08-05
1977-09-13
Cockeram, H.S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 75T, 260 75NK, 260 75NE, 260 23, C08G 1814, C08G 6376, C08J 1104, C08G 1810
Patent
active
040481042
ABSTRACT:
Polyisocyanate prepolymers for use in preparing polyurethane products elastomers, adhesives and foams, are prepared by combining (1) organic polyisocyanate with (2) polyols which are the hydroxyl-terminated digestion products of (a) waste or scrap polyalkylene terephthalate polymers and (b) organic polyols. Polyurethane products resulting from the polyisocyanate prepolymers exhibit useful and unexpected properties.
REFERENCES:
patent: 3305495 (1967-02-01), Vom Orde
patent: 3446758 (1969-05-01), Wiener
patent: 3647759 (1972-03-01), Walker
patent: 3699082 (1972-10-01), Koerner et al.
Carlstrom William L.
Maechtle Gary L.
Suh John T.
Svoboda Glenn R.
Cockeram H.S.
Freeman Chemical Corporation
Keck Harry B.
Manias George E.
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