[DOC] [TLE] History Of Toothbrushes And Toothpastes - Colgate Professional [PAR] The Chinese are believed to have invented the first natural bristle toothbrush 
made from ... Natural bristles were the only source of bristles until Du Pont 
invented nylon. ... Egyptians are believed to have started using a paste to clean 
their teeth ... Colgate introduced its toothpaste in a tube similar to modern-day 
toothpaste... [DOC] [TLE] Nylon - The science of synthetic textiles - Explain that Stuff [PAR] Jun 18, 2016 ... A simple introduction to nylon: what is it, how is it made, and what ... If wood is the 
world's most versatile natural material, nylon is probably the most useful synthetic 
one. ... Photo: Left: The world was introduced to nylon in 1938 when the DuPont 
... Right: You can make nylon bristles pretty much any length. [DOC] [TLE] Copy of The Impact of Technology by benedict loh on Prezi [PAR] May 22, 2014 ... The toothbrush as we know it today was not invented until 1938, but ... These are 
bristle toothbrushes that were one of the very many forms of ... This is one of the 
first toothbrushes with the nylon bristles that was ... In 1938, the first nylon bristle 
toothbrush was invented by Dr. Wallace Carothers, a Du Pont... [DOC] [TLE] Toothbrush - Wikipedia [PAR] The toothbrush is an oral hygiene instrument used to clean the teeth and gums 
and tongue that ... Most dentists recommend using a toothbrush labelled "soft", 
since hard bristled ... DuPont introduced the nylon toothbrush in the 1930s. ... The 
first bristle toothbrush, resembling the modern toothbrush, was found in China... [DOC] [TLE] Evolution of the Toothbrush | Gargles [PAR] Aug 6, 2007 ... Technology ... People often chewed on one end of the stick until the fibers of the 
wood ... Patent number 18,653 marked the first toothbrush patent in the ... place 
in 1938 when nylon bristles were used instead of animal hair. A company called 
DuPont de Nemours introduced the first toothbrushes with nylon... [DOC] [TLE] PowerPoint presentation on the History of Plastics - UMass Lowell [PAR] The first synthetic plastic was discovered in 1907 when a Belgian born ... 
Polyvinyl chloride (PVC) is one of the most widely used thermoplastics in use 
today, ... 1938. One of the earliest uses of nylon 66 fiber was for tooth brush 
bristles, ... in 1938, but the commercial introduction of DuPont's Teflon did not 
occur until 1946. [DOC] [TLE] History of Toothbrush: The First Toothbrushes and Toothpaste [PAR] Sep 7, 2015 ... DuPont, in the year 1938, replaced natural bristled-toothbrushes to ... 
Furthermore, it was in February 24, 1938 when the first nylon-bristled toothbrush 
... capable of moving up and down was introduced by General Electric. ... The 
benefits one can get from using good toothpaste comprise of the following:. [DOC] [TLE] Who Invented the First Toothbrush? - Hawaii Family Dental Centers [PAR] Sep 24, 2015 ... People back then were also attempting to clean their teeth using ... replaced by 
nylon (a synthetic material), this was done by Dupont. ... In the year 1960, one of 
the very first electric toothbrushes made a big wave in the American market. ... 
Aside from all these, toothbrush bristles are typically synthetic and... [DOC] [TLE] Who invented the toothbrush and when was it? (Everyday Mysteries ... [PAR] These 'chew sticks' were rubbed against the teeth. The bristle ... Boar bristles 
were used until 1938, when nylon bristles were introduced by Dupont de 
Nemours. The first nylon ... One of the first electric toothbrushes to hit the 
American market was in 1960. It was ... The use of Nature's toothbrush: the 
chewing stick. Research... [DOC] [TLE] UNYLON (POLYAMIDE) AN INTRODUCTION [PAR] Over the last one hundred years, 'plastics' have come to dominate the ... first with 
the introduction of nylon bristle toothbrushes in 1938, by DuPont. Nylon ... These 
include nylon nuts, bolts, washers, screws, tools, packaging and even parts for 
cars. ... Machinability: Nylon can be machined into precision parts, using 
standard... [DOC] [TLE] The Evolution

Question: Using Du Pont technology, the first one of these with synthetic bristles was introduced in 1938
Answer: a toothbrush