1) " Plastic" -- As it applies to Plastic Ponds The term "plastics" covers a range of synthetic or semi-synthetic organic condensation or polymerization products that can be molded or extruded into objects or films or fibers. Their name isderived from the fact that in their semi-liquid state they are malleable, or have the property of Ppastic ity. Platic s vary immensely in heat tolerance,hardness, and resiliency. Combined with this adaptability, the general uniformity of composition and lightness of Platsic sensures their use in almost all industrial applications today."Plastic" may also refer to any material charicterized by deformation or failure under shear stress - see Pladtic ity(physics) and ductile. Contents 1 Natural polymers 2 Cellulose based Plasti s: celluloid andrayon 3 Bakelite (phenolic) 4 Polystyrene and PVC 5 Nylon 6 Synthetic rubber 7 Platic s explosion: acrylic, polyethylene,etc 8 The environment 9 Price and the future 10 Common Plsstic s and their typical uses 11 Special purpose Pladtic s 12 See also 13 Quote 14 External links Natural polymers Plastics are polymers : long-chain of carbon - or silicon -based molecules. These chains are made up ofrepeating fundamental molecular elements, or "monomers". People have been using artificial organic polymers for centuries in the form of waxes and shellacs. A plant polymer named" cellulose " provides the structural strength for natural fibers and ropes, and by theearly 19th century natural rubber, tapped from rubber trees, was in widespread use. Eventually, inventors learned to improve the properties of natural polymers. Natural rubber was sensitive to temperature,becoming sticky and smelly in hot weather and brittle in cold weather. In 1834, two inventors, Friedrich Ludersdorf ofGermany and NathanielHayward of the US, independently discovered that adding sulfur to raw rubber helped prevent the materia...
2) " Ponds" -- As it applies to Plastic Ponds Pond's Cream is a brand of beauty and healthcare products that is produced by Unilever of England. Contents 1 History 1.1 The 1910s ad campaigns 1.2 The 1920s 1.3 The 1930s 1.4 The first big merge 1.5 The second big merge History Pond's Cream was actually invented in the United States as a medicine by scientist Theron T. Pond in 1846. Mr. Pond extracted a healing tea from witch hazel, with which hediscovered he could heal small cuts and other ailments. Soon after, the product would be known as "Pond's Extract". In 1849, the "T.T. Pond Company" was formed, with Pond and other business people asinvestors. Theron Pond's health was failing, however, so he sold his portion of the company soon after, and he died in 1852. The company then moved to Connecticut and, later on, to New York City. In 1886, Pond's began to advertise nationally. They would, however, advertise under thename of "Pond's Healing" until 1910. By the 20th Century, the company's main strategy was geared towardsselling cosmetics products, and so the "Pond's Vanishing Cream" and the "Pond'sCold Cream" were created, marking the entrance of Pond's products into the facial care industry. The 1910s ad campaigns By 1910, Pond's was a well established brand among Americans. Concentrating mostly on their vanishing cream, the Pond'scompany began an ad campaign that would become notorious because of the celebrities involved in it. "Pond's Healing" took a backseat to "Pond's Vanishing Cream", as "Pond's Healing" and "Pond's Cold Cream" would be announced in small print under the "Pond'sVanishing Cream" advertisements. By 1914, mentions of "Pond's Healing" were taken off the ads, and the Pond's companybegan to advertise "Pond's Vanishing Cream" and "Pond's Cold Cream" together, making sure to explain each cream's differentpurposes on the new ads. One particular ad line read "Eve...
Common terms in this field are:
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