Polycarbonate polyurethanes based on particular aliphatic/cycloa

Details Polycarbonate polyurethanes based on particular aliphatic/cycloa Polycarbonate polyurethanes based on particular aliphatic/cycloa

1976-04-28

1977-05-17

Cockeram, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775D, 428425, C08G 1842, C08G 6362, B32B 2740

Patent

active

040241130

ABSTRACT:
Energy-absorbing laminates for use as automobile windshields or other safety glass applications comprising a polycarbonate urethane and a sheet of glass are disclosed. The polyurethane is formed from a cycloaliphatic diisocyanate, a compound containing at least two active hydrogens per molecule and having a molecular weight below 250, and a special polycarbonate diol synthesized from a mixture of linear aliphatic and cycloaliphatic diols.

REFERENCES:
patent: 3022272 (1962-02-01), Schnell et al.
patent: 3432473 (1969-03-01), Seeliger
patent: 3433756 (1969-03-01), Seeliger et al.
patent: 3450793 (1969-06-01), Schnell et al.
patent: 3506623 (1970-04-01), Seeliger
patent: 3544656 (1970-12-01), Hornung et al.
patent: 3639354 (1972-02-01), Mueller et al.
patent: 3867350 (1975-02-01), Pedain et al.

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