초록 ▼

A laminated inner wall of a dual wall fume duct for transporting corrosive vapors and gases, and a process for fabricating the wall. The innermost layer of the wall is made of a cured epoxy vinyl ester resin incorporating chopped carbonized carbon fibers. The electrically conductive fibers act to di

A laminated inner wall of a dual wall fume duct for transporting corrosive vapors and gases, and a process for fabricating the wall. The innermost layer of the wall is made of a cured epoxy vinyl ester resin incorporating chopped carbonized carbon fibers. The electrically conductive fibers act to dissipate and neutralize electrostatic charges generated by triboelectric processes.

대표청구항 ▼

[ What is claimed is:] [5.]5. A laminated inner wall of a dual wall duct structure for transporting corrosive vapors and gases comprising:an innermost layer formed of an admixture of an epoxy vinyl ester resin and a curing agent therefor in a preselected percentage-by-weight, relative to the weight

[ What is claimed is:] [5.]5. A laminated inner wall of a dual wall duct structure for transporting corrosive vapors and gases comprising:an innermost layer formed of an admixture of an epoxy vinyl ester resin and a curing agent therefor in a preselected percentage-by-weight, relative to the weight of the resin, said innermost layer having a preselected thickness determined by an interior surface and an exterior surface and incorporating a multiplicity of electrically conductive fibers of a preselected length distributed three-dimensionally throughout the innermost layer and two-dimensionally at the interior surface, the fibers in a preselected percentage-by-weight relative to the weight of said admixture;a first layer of polyester veil having a preselected thickness wound over said innermost layer;a second layer of polyester veil having a preselected thickness wound over the first layer of veil, said second layer of veil pre-wetted with an admixture of an epoxy vinyl ester resin and a curing agent therefor in a preselected percentage-by-weight relative to the weight of the resin;a second layer of an admixture of an epoxy vinyl resin and a curing agent therefor in a preselected percentage-by-weight relative to the weight of the resin, said admixture applied over the second layer of polyester veil to a preselected thickness; anda layer of m at-type fiberglass, having a preselected weight and a preselected thickness, wound over the second layer of said admixture, said mat-type fiberglass pre-wetted with an admixture of a phenolic resin and a curing agent therefor in a preselected percentage-by-weight relative to the weight of the resin.