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Plastics

Auxiliary Process Equipment

Auxiliary Process Equipment Article

polymer that was critical to the war effort was "synthetic rubber", which was produced in a variety of forms. Synthetic rubbers are not plastics. Synthetic rubbers are elastic materials.

The first synthetic rubber polymer was obtained by Lebedev in 1910. Practical synthetic rubber grew out of studies published in 1930 written independently by American Wallace Carothers, Russian scientist Lebedev and the German scientist Hermann Staudinger. These studies led in 1931 to one of the first successful synthetic rubbers, known as "neoprene", which was developed at DuPont under the direction of E.K. Bolton. Neoprene is highly resistant to heat and chemicals such as oil and gasoline, and is used in fuel hoses and as an insulating material in machinery.

In 1935, German chemists synthesized the first of a series of synthetic rubbers known as "Buna rubbers". These were "copolymers", meaning that their polymers were made up from not one but two monomers, in alternating sequence. One such Buna rubber, known as "GR-S" (Government Rubber Styrene), is a copolymer of butadiene and styrene, became the basis for U.S. synthetic rubber production during World War II.

Worldwide natural rubber supplies were limited and by mid-1942 most of the rubber-producing regions were under Japanese control. Military trucks needed rubber for tires, and rubber was used in almost every other war machine. The U.S. government launched a major (and largely secret) effort to develop and refine synthetic rubber. A principal scientist involved with the effort was Edward Robbins.

By 1944 a total of 50 factories were manufacturing it, pouring out a volume of the material twice that of the world's natural rubber production before the beginning of the war.

After the war, natural rubber plantations no longer had a stranglehold on rubber supplies, particularly after chemists learned to synthesize isoprene. GR-S remains the primary synthetic rubber for the manufacture of tires.

Synthetic rubber would also play an important part in the space race and nuclear arms race. Solid rockets used during World War II used nitrocellulose explosives for propellants, but it was impractical and dangerous to make such rockets very big.

Auxiliary Process Equipment Items

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SSD Control Pro 400 CNC Router for Vinyl Fence - 2006
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GC-7012 BRANSON 400ACT / 160 SONIC WELDER 400 SERIES
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$2999.99
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$350.00
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$125.00
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$1150.00
3 Boxes Seelye Thermoplastic Welding Rod 1/8" x 36"
$9.99
McElroy No.14 Pipe Fusion Welder Machine Tool Plastic
$1600.00
Conair Franklin Vacuum Timer Hopper Magnetic Feeder
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Dymax Engineering Adhesives Light Welder PC-3 NR
$22.50
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GC-7001 NOVATEC MD-25 / MD- HOPPER 460V,1PH, 2.2 KVA
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Foremost 15HP Granulator w/ Blower, Conical Dairy Top
$8500.00
Branson Ultrasonic Welder Series 900 MDL 910 IW
$1899.98
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$199.00
BRANSON 1000 WATT ULTRASONIC PLASTIC WELDER 901AE 900M
$1995.00
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$3800.00
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$1500.00
CARVER C LABORATORY PRESS
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McElroy Multi- Mc Socket Heater & Adapter set
$152.45
Cumberland GRAN 2KN Granulator 3/16" 3/8" Screens
$100.00
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$1800.00
GC-7014 FLOYD DRIVES MD4112 CONSTANT TENSION PAY-OUT
$799.95
Edwards 29" Roller Die Cutter - Good Used Die Cutter
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NOVATEC VACUUM LOADER CONTROLLER - VL-5 NEW
$300.00
MCELROY MINI-MAC 1/2" TO 1" PIPE FUSION MACHINE #3
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Mix Miser 3 Plastic color concentrates Feeder NEW!
$1100.00
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Haumiller: 12 Heads Automatic Grinding Machine
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Cattinair Paint Line, 2005 Fully Automated Paint Booth
$98000.00
Hot oil temperature controller advantage regal rdo-1230
$2750.00
2004 Cumberland Model 1620X Plastic Granular Grinder
$6000.00
PLASTIC WELDING
$500.00
Branson 922Ja converter
$405.00
MERCURY VAPOR SODIUM LIGHTS FACTORY HIGH
$3.00
BRANSON ULTRASONIC WELDING ERGO BASE
$250.00
LEISTER HEAT SEALER, WELDER SYSTEM CH-6056, TYP-5000
$850.00
Temperature controller Sterlco M8424 water
$320.00
Brand New Heavy Duty Industrial Granulator
$695.00
Avalon Safety Cycle 2 Vision System
$500.00
Dri-Air Arid-X10 HOPPERS DRYERS PLASTICS
$999.99
Mcelroy Sidewinder Fusion Machine Welder ASW00111 "NR"
$203.80
GC-7002 CONAIR 14010801 METALOUT, 115V
$499.95
Grey pvc type II ,46 x 48 x 1 gray plastic
$129.00
Maguire Liquid color pump Mpa-3-34
$325.00
Color MMI man-machine Interface Dukane ultrasonic
$49.99
McELROY 8" MILWAUKEE CUTTER FACER PIPE FUSION MACHINE
$999.99
Branson ultrasonic welder booster olive dukane
$0.99
MONITOR LEVEL SENSOR ROTARY
$5.00
MOELLER DEVICON ULTRASONIC WELDER - SEALER - PACKAGING
$7400.00
GC-7018 HAMILTON GRANULATOR OPENING IS 7 1/4" X 7 1
$249.95
SONIC WELDER BASE
$0.01
Innogaz Electrofusion Control Plastic Fusion Welder
$499.99
TMI IMPACT TESTER WITH HAMMERS AND NOTCHER
$1950.00
Cumberland Grinder, 100 HP Granulator, Plastic Grinder
$34500.00
Forsthoff Quick LE Heat Welding Hot Air Gun New
$399.00
NOVATEC VACUUM LOADER CONTROLLER - VL-4 NEW
$250.00
Thermosonics P-330 Ultrasonic Welder and Power Supply
$750.00
40 Khtz Ultrasonic welding aluminum horn Dukane
$19.99
Tubing
$0.99
GEAR BOX davis standard blue ribbon 2 1/2 " gearbox
$12900.00
MCELROY PIPE FACER PLASTIC PE PIPE FUSION MANUAL 6.75"
$215.23
Forsthoff Quick LE Heat Welding Hot Air Gun New
$409.00
Cumberland Grinder, 150 HP Granulator, Plastic Grinder
$49500.00
Lot of 10 Chrome Plated Brass 1/8 NPT Mini Ball Valves
$15.00
Sakas traveling cross cut saw
$950.00
Foremost 15HP Granulator w/ Blower, Conical Dairy Top
$9500.00
1999 Cumberland No.5 Plastic Granular Plastic Grinder
$2000.00
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Branson welding actuator 921AOS Plastics
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OMICRON MSP 710 #71014 Pipe welder
$290.00
GC-7011 IMS RD-100 HOPPER DRYER , 480V , 3PH
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Mini-Weld Model 6 Airless Plastic Welder URE-5600HT
$125.00
Used 20 HP Cumberland Granulator, 14 x 16 Inches
$1500.00
RF Welder Heat Sealer Cosmos 10KW Fixed Freq.
$10500.00
2003 Cumberland Model 1620X Plastic Granular Grinder
$6500.00
DUKANE Ultrasonic Plastic Welder Model 41C28 + Booster
$9.99
Polymer Systems Inc 11x16 15 HP Granulator Grinder
$3200.00
Cryogenic parts Deflasher (AGA Accuflash-S)
$1000.00
Motan Luxor Bin Model DE100-4
$59.98
Whitlock WD Dehumidifying Dryer
$2200.00
Demtech VM99 Wedge Welder for Roofing
$102.51
GC-7013 BRANSON 400ACT / 160 SONIC WELDER 400 SERIES
$999.95
Branson ultrasonic welder booster gold dukane
$0.99
GC-7009 GRANUTEC 810AM-5 GRANULATOR, 460V
$749.95
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$9.99
GC-7020 IMS LP-49-SC GRANULATOR, 460V, 3PH, 2HP,
$249.95
INTRUCTION MANUAL BRANSON SONIC POWER
$19.99
GC-7010 FLOYD DRIVES MD4112 CONSTANT TENSION WIND-UP
$749.95