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Scotchgard is a 3M brand of products, a stain repellent and durable water repellent applied to fabrics, upholstery, and carpets to protect them from stains. Scotchgard products typically rely on organofluorine chemicals as the main active ingredient along with petroleum distillate solvents.
Many spray-on and wash-in products for treatment of non-waterproof garments and re-treatment of proofed garments losing their water-repellency are available. Methods for factory application of DWR treatments involve applying a solution of a chemical onto the surface of the fabric by spraying or dipping, or chemical vapor deposition (CVD).
An expiration date or expiry date is a previously determined date after which something should no longer be used, either by operation of law or by exceeding the anticipated shelf life for perishable goods. Expiration dates are applied to some food products and other products like infant car seats where the age of the product may affect its safe ...
FDA regulations require all nonprescription drugs, including sunscreen, to have an expiration date, though there’s an exception to that rule if a manufacturer’s stability testing shows the ...
PFOS was the key ingredient in Scotchgard, a fabric protector made by 3M, and related stain repellents. The acronym "PFOS" refers to the parent sulfonic acid and to various salts of perfluorooctanesulfonate. These are all colorless or white, water-soluble solids.
Patsy O’Connell Sherman (September 15, 1930– February 11, 2008) was an American chemist and co-inventor of Scotchgard, a 3M brand of products, a stain repellent and durable water repellent. [ 1 ] Early life
PFOSA, a persistent organic pollutant, was an ingredient in 3M's former Scotchgard formulation [1] [2] from 1956 until 2003, and the compound was used to repel grease and water in food packaging [3] along with other consumer applications. [4] It breaks down to form perfluorooctane sulfonate (PFOS). [5]
The expiration date of pharmaceuticals specifies the date the manufacturer guarantees the full potency and safety of a drug. Most medications continue to be effective and safe for a time after the expiration date. A rare exception is a case of renal tubular acidosis purportedly caused by expired tetracycline. [9]