Double-walled, vacuum-insulated container having inner coating cured at high temperature

摘要

A double-walled, vacuum-insulated container is manufactured with a cured inside coating. To form the container, an inner liner is disposed in an outer body. The inner liner has an inner sidewall, an inner bottom, and an inner lip, and the outer body has an outer sidewall and an outer lip. The inner and outer lips are affixed together with an affixation or weld having a first melt point. A plenum is enclosed between the inner liner and the outer body by affixing an outer bottom to the outer body and creating a vacuum at least partially in the plenum using a seal having a second melt point. This second melt point can be about 450° C. and 500° C. The coating is painted to an inside surface of the inner liner, and the painted coating is cured with a temperature level at least below the first and second melt points.

主权项

1. A container manufacturing method, comprising:
forming a double-walled container having a plenum enclosed between an inner body and an outer body; creating a vacuum at least partially in the plenum using a seal having a first melt point; applying a paint coating to an inside surface of the inner body after creating the vacuum, the paint coating having a drying temperature above a normal drying temperature of a conventional paint coating; and curing the paint coating with a temperature level, the temperature level being above the normal drying temperature of the conventional paint coating and being below the first melt point.