Plastics did not really take off until after the First World War, with the use of petroleum, a substance easier to process than coal into raw materials. Plastics served as substitutes for wood, glass and metal during the hardship ... Plastics can be processed in various ways to produce thin fibers or very intricate parts.
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Since it takes far less raw material to produce one plastic grocery bag than an equivalent paper one, an argument could be made that plastic is actually a better choice environmentally. Recent advances in polymer technology have also resulted in plastics which are closer to true biodegradability than older forms of plastic.
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elliot r barenbaum Answer: Well, I looked this up in the "McGraw-Hill Concise Encyclopedia of Science and Technology." (second ed., 1981). Plastics are relatively stiff materials made of polymers (long molecules made of smaller molecular units joined together) and other ingredients such as fillers,
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All plastic products, many of the materials used to make the clothes you wear, or the carpet you walk on, plus hundreds of the other products we take for granted, are made from petrochemicals. As the name implies, a main ingredient in petrochemicals is oil.
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NEW YORK (Reuters) - Dow Chemical Co. and Chevron Phillips Chemical Co. said on Tuesday they planned to join forces to produce plastics and raw materials used ... (CVX.N) (COP.N) said on Tuesday they planned to join forces to produce plastics and raw materials used to make products ranging from car parts to foam packaging.
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Recycling plastics saves over 70% energy as compared to the manufacturing process, while recycled paper requires 40% less energy. Raw materials recovered from collecting companies are purer, ... In normal conditions, it's much more cheaper to recycle than to produce new raw materials. The fact is that all recycle techniques...
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The Leading Chemical & Plastics Distributor in the Middle East and African Markets. Representing a wide range of internationally known and respected chemical & polymer manufacturers. Leading supplier of all Silicone raw materials into most Industries.
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