Glass container coated with polyurethane

Details Glass container coated with polyurethane Glass container coated with polyurethane

1976-02-17

1978-06-06

Gwinnell, Harry J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

427385A, 428327, 428339, 428425, 215DIG6, 215 12R, B65D 102

Patent

active

040937593

ABSTRACT:
A process for preventing the scattering of glass fragments in the event of the bursting of a glass container such as a bottle, which comprises coating the surface of the glass container with a resin composition in a thickness of at least 100 microns, said composition comprising a dispersion of (A) a powder with a particle diameter of about 1 to 100 microns of a solid compound capable of reaction with (B) upon heating to form a higher molecular weight cured product, in (B) a normally liquid urethane prepolymer having a molecular weight of at least 400 per isocyanato group, and being capable of forming a film having a tensile strength of at least 300 kg/cm.sup.2 and a percent elongation of at least 200%.

REFERENCES:
patent: 3105062 (1963-09-01), Graham et al.
patent: 3178049 (1965-04-01), Cottet
patent: 3341499 (1967-09-01), Kaiser
patent: 3386962 (1968-06-01), Damusis
patent: 3428609 (1969-02-01), Chilvers et al.
patent: 3428610 (1969-02-01), Klebert
patent: 3629168 (1971-12-01), Ryan
patent: 3666835 (1972-05-01), Schloss
patent: 3726835 (1973-04-01), Bertozzi
patent: 3730927 (1973-05-01), Schloss
patent: 3823032 (1974-07-01), Ukai
patent: 3889031 (1975-06-01), Tatsumi et al.

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