1. Miguel Calvo Hernández 1ºB

2. In the early thirties it was produced in England the
first polyester fiber
it obtained from dicarboxylic acids called Terylene
In 1946 Du Pont acquired the exclusive license to
make polyester in the United States, knowing in
that country under the name of Dacron, and
released in 1951.

3. Lycra was invented in 1959 by chemist Joseph
Shivers.
The Spanish company DuPont patented his
invention in 1959 and gave him the name LYCRA.
It is one of the fibers composing a fabric. Its
properties are given elasticity and higher quality

4. Nylon was discovered by Wallace Hume
Carothers
It was discovered on February 28, 1935
The DuPont Laboratories in 1938, produced this
strong and resilient synthetic fiber

5. Rayon fiber was the first fiber manufactured
It is produced from a polymer found in the nature
The physical properties of rayon not change until
the development of high tenacity rayon in the 40s.