Safety glass laminates with aliphatic/cycloaliphatic polycarbona

Details Safety glass laminates with aliphatic/cycloaliphatic polycarbona Safety glass laminates with aliphatic/cycloaliphatic polycarbona

1977-02-11

1978-07-25

Cannon, J.C.

Stock material or miscellaneous articles

Composite

Of polycarbonate

428425, B32B 1710, B32B 2736, B32B 2740

Patent

active

041030702

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: 3117019 (1964-01-01), Cohnen et al.
patent: 3388032 (1968-06-01), Saunders
patent: 3764457 (1973-10-01), Chang et al.
patent: 4024113 (1977-05-01), Ammons

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