RUBBER
Rubber fibers from natural sources have been known for over 100 years. Natural rubber in commerce is derived from coagulation of Hevea brasiliensis latex and is primarily -polyisoprene, a diene polymer.
Rubber fibers exhibit excellent elastic properties but are sensitive to chemical attack, thereby limiting their usefulness.
Rubber fibers are manufactured by several companies as rubber fiber or under trade names such as Buthane, Contro, Hi-Flex, Lactron, Lastex, and Laton. Rubber fibers show good elastomeric properties and reasonable aesthetic properties particularly as the core of a textile yarn structure.
- See more at: http://www.textileschool.com/articles/89/elastomeric-fibres-fibres-with-elastic-capability#sthash.1dlZznPj.dpuf