21.   Unless your work involves manufacturing fireworks, ammunition or synthetic rubber, you probably were not aware that the pesticide hexachlorobenzene is also a highly dangerous industrial compound.

22.   Uniroyal Chemical has leading market positions in such businesses as synthetic rubbers for automotive parts and construction products, plastic additives and crop fungicides.

23.   We had synthetic rubber, we just had no reason to use it.

24.   A World War II scientist was looking for ways to produce synthetic rubber when, by accident, he invented a classic American toy.

25.   In addition to his innovations in refrigeration technology, Garland helped perfect the production of synthetic rubber during World War II.

26.   One worker was killed and two were badly injured injured when a tank of toluene exploded at a synthetic rubber factory Sunday morning, an official said.

27.   One worker was killed and two were badly injured when a tank of flammable liquid exploded at a synthetic rubber factory Sunday morning, an official said.

28.   Sibur makes and sells everything from liquefied petroleum gas to synthetic rubber and tires.

29.   Synthetic rubber was invented due to the adversity resulting from a great shortage of natural rubber in the world.

30.   Synthetic rubber was not invented when there was an abundance of natural rubber.