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Eduard Simon, a German apothecary, discovers polystyrene. [2] 1844. Thomas Hancock patents the vulcanization of rubber in Britain immediately followed by Charles Goodyear in United States. [3] 1856. Parkesine, the first member of the Celluloid class of compounds and considered the first man-made plastic, is patented by Alexander Parkes. [4] 1869.
Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be molded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties, such as being lightweight, durable, flexible, and inexpensive ...
Bakelite (/ ˈbeɪkəlaɪt / BAY-kə-lyte), formally polyoxybenzylmethyleneglycolanhydride, is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. The first plastic made from synthetic components, it was developed by Leo Baekeland in Yonkers, New York, in 1907, and patented on ...
Where Technic was mechanically accurate, Model Team was visually and stylistically accurate. The Lego Group became one of the top 10 toy companies that year; it was the only toy company in Europe to be among the top 10. Also, that year, Lego land Billund reached more than one million visitors for the first time in its history.
When teashades became popular in the late 1960s, they were often elaborated: Lenses were elaborately colored, mirrored, and produced in excessively large sizes, and with the wire earpieces exaggerated. A uniquely colored or darkened glass lens was usually preferred. Modern versions tend to have plastic lenses, as do many other sunglasses.
The history of bottle recycling in the United States has been characterized by four distinct stages. In the first stage, during the late 18th century and early 19th century, most bottles were reused or returned. [1] When bottles were mass-produced, people started throwing them out, which led to the introduction of bottle deposits. [2]
Plastic bottles were first used commercially in 1947, but remained relatively expensive until the early 1950s when high-density polyethylene was introduced. [5] They quickly became popular with both manufacturers and customers because compared to glass bottles, plastic bottles are lighter, cheaper and easier to transport.
Drinking straw. A drinking straw is a utensil that is intended to carry the contents of a beverage to one's mouth. Disposable straws are commonly made from plastics. However, environmental concerns related to plastic pollution and new regulation have led to rise in reusable and biodegradable straws. Following a rise in regulation and public ...