Thomas Hancock

Coldr-Formed Steel Structures to the AISI Specification Gregory J. Hancock, Thomas M. Murray, Duane S. Ellifritt... 

Thomas Hancock (1785-1865) is designated the father of the rubber industry and to him Great Britain is indebted for the honour of being the first country to manufacture rubber successfully as a large-scale project. His first major discovery, in 1819, was the process of masticating and mixing raw rubber. His subsequent claim, in his Personal Narrative published in 1857, that this was unquestionably the origin and commencement of the India-rubber manufacture, properly so called , has been amply verified since. 

Duerdon, F., Thomas Hancock—An appreciation. Plas. Rubber Intemat., 1986,11(3), 22. 

Thomas Hancock invented a method of masticating rubber so that it could be easily moulded under pressure but it could not set into a shaft. 

Toy balloons were introduced by Thomas Hancock in 1825 as a do-it-yourself kit that consisted of a rubber solution and a syringe. Vulcanized toy balloons were initially manufactured by J.G. Ingram of London in 1847. The vulcanizing caused the balloons to be nontacky and not susceptible to becoming excessively tacky on hot days. Montgomery Ward had balloons in their catalog by 1889. 

Mary Beilis. Thomas Hancock Invented The Rubber Masticator, (www. about.com). 

Charles Slack, Noble Obsession, 2002, Texere Publishing Limited, NY, London, (a book on Charles Goodyear and Thomas Hancock). 

Thomas Hancock (1786-1865) and Charles Macintosh (1766-1845) a chemist dissolved natural rubber in naphtha obtained by the fractional distillation of coal tar. They, then dipped ordinary cloth in this rubber solution to produce waterproof cloth for making coats. This waterproof coat came to be known as Mackintosh . 

Slack, Charles (2002). Noble Obsession Charles Goodyear, Thomas Hancock, and the Race to Unlock the Greatest Industrial Secret of the Nineteenth Century. New York Hyperion. 

Polymers are very soft materials which are not easily milled under normal conditions. The mastication of natural rubber is the reduction of molecular weight by milling or cutting, the process being invented by Thomas Hancock as early as 1820. Even today this is a major industrial process in the tire and rubber industry. Other polymers are milled under reduced temperature or even in liquid nitrogen to achieve a controlled molecular mass. The degradation of several polymers has been investigated by Dimitrov et al. [104]. 

Proteins, nudeic adds, and polysaccharides all serve critical biological functions. They are synthesized for specific purposes and are essential to the lives of the organisms in which they occur. The role of the polyisoprenes, on the other hand, is less obvious and less well understood. Because their backbones contain a large number of double bonds, they decompose readily when exposed to sunlight or to oxygen in the air. Therefore, rubber did not become a widely useful material until the invention of vulcanization in the 1850s by Charles Goodyear and Thomas Hancock (see Chapter 4). 

POLYMER MILESTONES—THOMAS HANCOCK CHARLES MACINTOSH... 

Thomas Hancock develops the first elastic fabrics... 

Thomas AE, Patterson J, Prentice HG, Brenner MK, Ganczakowski M, Hancock JF, Pattinson JK, Blacklock HA, Hopewell JP. Haemorrhagic cystitis in bone marrow transplantation patients possible increased risk associated with prior busulphan therapy. Bone Marrow Transplant 1987 l(4) 347-55. 

Charles Goodyear [1], an American scientist, worked with gutta-percha, a gum from natural tropical trees, and Thomas Hancock, a British scientist who simultaneously and independently developed a process for the vulcanisation of rubber (1839) by reacting it with sulphur and heat, are credited with the first deliberate attempt to chemically modify a natural polymer to produce a moulding material. Gutta-percha was used to protect and insulate the first submarine telegraph cables. The combined and independent efforts of these men helped to lay the foundation for the manufacture of synthetic materials using chemistry. 

Vulcanization was discovered in 1846 by Charles Goodyear in the U.S. and simultaneously by Thomas Hancock in England. Its overall effect is to convert rubber hydrocarbon from a soft, tacky, thermoplastic to a strong, temperature-stable thermoset having unique elastic modulus and yield properties. 

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