Polyurethane composition

Details Polyurethane composition Polyurethane composition

1974-12-27

1978-04-18

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 775CR, C08G 1804, C08L 7506, C08L 7508

Patent

active

040851656

ABSTRACT:
A polyurethane composition is produced by mixing (a) 100 parts by weight of prepolymer having terminal isocyanate groups and having a number average molecular weight in the range of from 800 to 20,000, (b) 5 - 30 parts by weight of a radical polymerizable vinyl compound, and (c) 0.05 - 1.0 part by weight of a radical initiator, adding (d) a curative selected from the group consisting of polyamine and polyol, and curing the resulting mixture by heating at 70 - 140.degree. C, the equivalent ratio of the active hydrogen of (d) to the isocyanate groups of (a) being in the range of from 0.8 to 1.2.

REFERENCES:
patent: 3047530 (1962-07-01), Nisch et al.
patent: 3586649 (1971-06-01), Cobbledick
patent: 3770703 (1973-11-01), Gruber et al.
patent: 3782961 (1974-01-01), Takahashi et al.
patent: 3824201 (1974-07-01), McGranaghan et al.
patent: 3834578 (1974-09-01), Smith et al.
patent: 3855177 (1974-12-01), Sanda, Jr.
patent: 3864133 (1975-02-01), Hisamatsu et al.

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