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Polypropylene, highly colorfast, is widely used in manufacturing carpets, rugs and mats to be used at home. [47] Polypropylene is widely used in ropes, distinctive because they are light enough to float in water. [48] For equal mass and construction, polypropylene rope is similar in strength to polyester rope.
Flock worker's lung is an occupational lung disease caused by exposure to flock, small fibers that are glued to a backing in order to create a specific texture.People who work in flocking are at risk of inhaling small pieces of the flock fibers, which causes interstitial lung disease. [1]
The European Food Safety Authority completed a re-evaluation into the risks of BPA in 2023, concluding that its tolerable daily intake should be greatly reduced. [90] This lead to a European Union resolution passed in early 2024 to ban BPA in all the food contact materials, including plastic and coated packaging.
Polypropylene is a semi-crystalline thermoplastic with high bonding strength, tough, stable, elastic, hard and highly abrasion- and impact-resistant. Because of its chemical and physical molecular structure, solid masses of polypropylene are highly resistant to a wide range of aggressive chemicals including aqueous solutions of salts, acids and ...
In the United States, plastic water bottles are regulated by the FDA which also inspects and samples bottled water plants periodically. Plastic water bottle plants hold a low priority for inspection due to a continuously good safety record. [14] In the past, the FDA maintained that there was a lack of human data showing plastics pose health ...
Polypropylene glycol is produced by ring-opening polymerization of propylene oxide. The initiator is an alcohol and the catalyst a base, usually potassium hydroxide. When the initiator is ethylene glycol or water the polymer is linear. With a multifunctional initiator like glycerine, pentaerythritol or sorbitol the polymer branches out ...
The concerns began with the hypothesis that BPA is an endocrine disruptor, i.e. it mimics endocrine hormones and thus has the unintended and possibly far-reaching effects on people in physical contact with the chemical. Since 2008, several governments have investigated its safety, which prompted some retailers to withdraw polycarbonate products.
Fire engine from the Emergency Response Team fighting the fires following the explosion. The Formosa Plastics propylene explosion was a propylene release and explosion that occurred on October 6, 2005, in the Olefins II Unit at the Formosa Plastics plant in Point Comfort, Texas, United States.