Search results
Results from the WOW.Com Content Network
Neoprene's burn point is around 260 °C (500 °F). [21] In its native state, neoprene is a very pliable rubber-like material with insulating properties similar to rubber or other solid plastics. Neoprene foam is used in many applications and is produced in either closed-cell or open-cell form.
Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [4] 1869: John Wesley Hyatt discovers a method to simplify the production of celluloid, making industrial production possible. 1872: PVC was accidentally synthesized in 1872 by German chemist Eugen Baumann ...
From the 1870s up to the onset of World War I (1914), the organic chemical industry of Germany was a world-leading force in research, development, production, and export; most organic compounds used in America, such as textile dyes and some medicines, were imported from Germany. [1]
Although it may have been discovered earlier, chloroprene was largely developed by DuPont during the early 1930s, specifically with the formation of neoprene in mind. [4] The chemists Elmer K. Bolton , Wallace Carothers , Arnold Collins and Ira Williams are generally accredited with its development and commercialisation although the work was ...
Donald Neilson (born Donald Nappey; 1 August 1936 – 18 December 2011), also known by the monikers "The Black Panther," "The Phantom" and "Handy Andy," was an English armed robber, kidnapper and murderer. [2] Neilson committed a string of sub-post office robberies between 1971 and 1974, killing three people. [3]
Wallace Hume Carothers (/ k ə ˈ r ʌ ð ər z /; April 27, 1896 – April 29, 1937) was an American chemist, inventor, and the leader of organic chemistry at DuPont, who was credited with the invention of nylon.
Hugh Bradner (November 5, 1915 – May 5, 2008) was an American physicist at the University of California who is credited with inventing the neoprene wetsuit, which helped to revolutionize scuba diving and surfing.
The panther became his totem and its hunting style also became his. [22] In the Second Boer War, Duquesne became known as the "Black Panther", and as a spy in the 1930s he stamped "all of his communiques to Germany with the figure of a cat, back arched and fur raised in anger." [22] At age 12, Duquesne killed a Zulu who attacked his mother.