Introductory Remark The original meaning of the word “Plastic” is “pliable and easily shaped”. The word is originated from the Greek word “plastikos” which means to “grow” or “form”. However, recently it has emerged as a name for a category of materials called polymers. The first synthetic polymer was invented in the year 1869 by John Wesley Hyatt. In 1907, Leo Baekeland invented Bakelite, the first fully synthetic plastic. World War II necessitated a
