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1889. Eastman Kodak successfully filed a patent for the celluloid film. [6] 1890s. Galalith, a plastic derived from casein developed by Wilhelm Krische and Adolph Spitteler. [7] 1890s. Auguste Trillat discovered the means to insolubilize casein by immersion in formaldehyde, producing material marketed as galalith.
Infobox references. Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene. Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar.
John Paul Hogan (August 7, 1919 [1] – February 19, 2012) [2][3] was an American research chemist. Along with Robert Banks, he discovered methods of producing polypropylene and high-density polyethylene. [1]
Biodegradable plastic. Biodegradable plastics are plastics that can be decomposed by the action of living organisms, usually microbes, into water, carbon dioxide, and biomass. [1] Biodegradable plastics are commonly produced with renewable raw materials, micro-organisms, petrochemicals, or combinations of all three. [2]
September 3, 2024 at 6:00 AM. A chemistry lab at UC Berkeley says it has devised a chemical reaction that could address much of our plastic waste. (Andrew Medichini / Associated Press) Despite the ...
In the European Union (EU), too, heavy investments have been made in the plastics industry, which employs over 1.6 million people with a turnover of more than 360 billion euros per year. In China in 2016 there were over 15,000 plastic manufacturing companies, generating more than US$366 billion in revenue.
Microplastics are fragments of any type of plastic less than 5 mm (0.20 in) in length, [1] according to the U.S. National Oceanic and Atmospheric Administration (NOAA) [2][3] and the European Chemicals Agency. [4] They cause pollution by entering natural ecosystems from a variety of sources, including cosmetics, clothing, food packaging, and ...
Plastic degradation in marine bacteria describes when certain pelagic bacteria break down polymers and use them as a primary source of carbon for energy. Polymers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) are incredibly useful for their durability and relatively low cost of production, however it is their persistence and difficulty to be properly ...