From a boiling bath of hot sulfuric acid, a laboratory technician lifts two rods of plastic. One has charred and deteriorated. The other-a rod of DuPont's new Teflon tetrafluoroethylene resin-is not affected at all by the highly corrosive hot acid....
A circular piece of Teflon tetrafluoroethylene resin, a DuPont industrial plastic, placed between tinfoil electrodes, is being measured for its dielectric constant and power factor at 60 to 15,000 cycles. A laboratory technician adjusts the...
"Teflon" A Good Electrical Insulator.
Caption text on photo: "A circular piece of 'Teflon' tetrafluoroethylene resin, a DuPont industrial plastic, placed between tinfoil electrodes, is being measured for its dielectric constant and power factor...
Caption text on photo: "Controlled at this panel is equipment for refining the monomer and producing the polymer from which is made DuPont's unique industrial plastic "Teflon" tetrafluoroethylene resin. Able to withstand high temperatures and the...
Tubing 1/2 an inch, outside diameter, made from Teflon fluorocarbon resin is being extruded from the thin walled tubing extruder at the DuPont Plastics Department Mechanical Service Laboratory. Located at Chestnut Run near Wilmington, Delaware.
Controlled at this panel is equipment for refining the monomer and producing the polymer from which is made DuPont's unique industrial plastic-Teflon tetrafluoroethylene resin. Able to withstand high temperatures and the most corrosive acids,...
Typed on back: "Plunkett shows his assistant, Jack Rebok (left) the white powdery material he scraped from inside the cylinder they curiously sawed open after a "failed" experiemnt with refrigeration gases. Bob McHairness looks on during this...
New Plastic Insulator.
Caption text on photo: "A laboratory technician places a piece of 'Teflon' tetrafluoroethylene resin, a DuPont industrial plastic, in an instrument which measures the plastic's dielectric constant and power factor at 3000...
Dielectric Test of Plastic.
Caption text on photo: "A laboratory technician places a disc of 'Teflon' tetrafluoroethylene resin, a DuPont industrial plastic, in a high-voltage testing set to measure its dielectric strength. The transformer oil...
Chemically Inert Plastic.
Caption text on photo: "From a boiling bath of hot sulfuric acid, a laboratory technician lifts two rods of plastic. One has charred and deteriorated. The other – a rod of DuPont's 'Teflon' tetrafluoroethylene resin...
Caption text on photo: "Tubing ½ inch, outside diameter, made from 'Teflon' fluorocarbon resin is being extruded from the thin walled tubing extruder at the DuPont Plastics Department's Technical Services Laboratory, located at Chestnut Run near...
Caption text on photo: "This automatic multiform press is used to perform or cold-form small parts such as 'O' rings, seals, and bearings from 'Teflon' molding powder at the new Polychemicals Sales Service Laboratory. In this operation 'O' rings...
