Foamed, low density, highly extended unsaturated polyester resin

Details Foamed, low density, highly extended unsaturated polyester resin Foamed, low density, highly extended unsaturated polyester resin

1981-07-09

1982-08-31

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 83, 521 92, 521100, 521123, 521125, 521182, C08J 900

Patent

active

043473318

ABSTRACT:
A foamed, low density, highly extended, polymerized unsaturated polyester resin product which exhibits excellent fire, strength and insulative properties. The product is formed by combining a first component comprised of unsaturated polyester resin syrup, reactive, non-reinforcing, extender material capable of providing a blowing agent nd selected from the group consisting of inorganic carbonate compounds, inorganic bicarbonate compounds and mixtures thereof and, optionally, non-reactive, non-reinforcing extender material with a second component comprised of an aqueous solution of aluminum hydroxie chloride and, optionally, non-reactive, non-reinforcing, extender material. When the two components are combined as a composition mixture, the reactive, non-reinforcing, extender material and the aluminum hydroxie chloride solution react to provide a blowing agent and to form a solid product which chemically binds the water originally present. If desired, a reinforcing filler material can be incorporated into the composition. A wide variety of shaped articles can be formed from the composition.

REFERENCES:
patent: 3373225 (1968-03-01), Degginger
patent: 3920589 (1975-11-01), Jacobs et al.
patent: 3951885 (1976-04-01), Thompson
patent: 3960583 (1976-06-01), Netting et al.
patent: 4016112 (1977-04-01), Kojura et al.
patent: 4055519 (1977-10-01), Thompson
patent: 4059560 (1977-11-01), Lawson et al.
patent: 4119583 (1978-10-01), Filip et al.
patent: 4192791 (1980-03-01), Self

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