High temperature foam

Details High temperature foam High temperature foam

1988-12-07

1990-02-27

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521902, 521906, C08J 916

Patent

active

049047035

ABSTRACT:
A highly temperature resistant foam useful for insulating is disclosed. The foam is particularly useful for insulating stem pipes, hot water heaters and refinery and chemical processing plant pipes. The foam insulation utilizes a cross-linking agent comprised of melamine, which may be dissolved in an alcoholic base. The foam may also include an aromatic polyester polyol, a chlorinated polyester polyol, a nonyl phenol ethoxylate, a silicone based surfactant, and isocyanurate catalyst, a density controlling agent and polymeric isocyanate.
The foam will stand consistent temperatures as high as 400.degree. F. It is suitable for spray or poured applications and may be frothed during application.

REFERENCES:
patent: 4221875 (1980-09-01), Yakuta
patent: 4421868 (1983-12-01), Smith
patent: 4427797 (1984-01-01), Smith
patent: 4644015 (1987-02-01), Scaccia et al.
patent: 4777187 (1988-10-01), Weber et al.
patent: 4789690 (1988-12-01), Milovanovic-Lerik et al.

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