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Galalith, a plastic derived from casein developed by Wilhelm Krische and Adolph Spitteler. [7] 1890s: Auguste Trillat discovered the means to insolubilize casein by immersion in formaldehyde, producing material marketed as galalith. [7] 1894: Shellac phonograph records are developed and soon become an industry standard. 1898
The more substantial Union case was made from a mixture of colored sawdust and shellac (the main component of wood varnish) formed in a heated mold to produce a decorative sculptural relief. The word "Union" referred to the sawdust and varnish mixture—the manufacture of Union cases began in 1856. [73]
Bakelite (/ ˈ b eɪ k ə l aɪ t / BAY-kə-lyte), formally polyoxybenzylmethyleneglycolanhydride, is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde.
Date/Time Thumbnail Dimensions User Comment; current: 23:40, 8 October 2012: 2,800 × 1,410 (1.4 MB): Matanya == {{int:filedesc}} == {{Information |Description=Allyn Cox Oil on Canvas 1973-1974 Great Experiment Hall Cox Corridors The expansion and industrialization of America required iron and steel for railroads, bridges, skyscrapers, and tools.
The number of lac bugs required to produce 1 kilogram (2.2 lb) of shellac has variously been estimated between 50,000 and 300,000. [ 10 ] [ 11 ] The root word lakh is a unit in the Indian numbering system for 100,000 and presumably refers to the huge numbers of insects that swarm on host trees, up to 150 per square inch (23/cm 2 ).
Wooden furniture is taken apart when renewing varnish to improve the finish. A synthetic varnish, cellulose nitrate, was developed in the 1850s but was not available in a formulation suitable for commercial furniture until the late 1920s. Unfortunately, cellulose nitrate discolors and becomes brittle as it ages, so over time, the coating on ...
Allen B. Wilson invented it during the time period 1850 to 1854. [112] U.S. patent #12116 was issued on December 18, 1854. [113] 1850 Vibrating shuttle. A vibrating shuttle in its carrier. A vibrating shuttle is a bobbin driver design used in home lockstitch sewing machines during the second half of the 19th century and the first half of the ...
Japanning is most often a heavy black lacquer, almost like enamel paint. Black is common, and japanning is often synonymous with black japanning. The European technique uses varnishes that have a resin base, similar to shellac, applied in heat-dried layers which are then polished, to give a smooth glossy finish. It can also come in reds, greens ...
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