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In 1938 Roy J. Plunket, a recent hire at DuPont, discovered polytetrafluoroethylene (or Teflon)—a fluoropolymer that led to the invention of synthetic rubber. [2] His early discovery led 3M scientists to develop the formula for Scotchgard, discovered by accident in 1953 when Joan Mullan—a 3M lab technician—spilled a few drops of a fluorochemical liquid destined for rubber jet fuel hoses ...
Scotch-brite. Scotch-Brite is a line of abrasive products produced by 3M.The product line includes scouring pads and tools for home uses such as dish washing and scrubbing, as well as various types of surfaces for industrial applications, such as discs, belts, and rotating brushes, with varying compositions and levels of hardness.
Shoe Goo was created in part in 1972 by Lyman Van Vliet, a 45-year-old senior executive at Hughes Aircraft Co. [1] [2] As a frequent tennis player, Van Vliet was dissatisfied with the durability of the soles of his tennis shoes and sought a method to extend their life by repairing them.
The Goodyear welt process is a machine-based alternative to the traditional hand-welted method (c. 1500) for the manufacture of footwear, allowing them to be resoled repeatedly. The upper part of the shoe is shaped over the last and fastened on by sewing a leather, linen or synthetic strip (also known as the "welt") to the inner and upper sole.
Rubber is the polymer cis-1,4-polyisoprene – with a molecular weight of 100,000 to 1,000,000 daltons. Typically, a small percentage (up to 5% of dry mass) of other materials, such as proteins, fatty acids, resins, and inorganic materials (salts) are found in natural rubber.
Nowadays the brand name is used by 3M for a line of American-made products for automotive, marine and household repairs. [1] [2] The term Bondo is trademarked by 3M, but is commonly used to refer to any brand of automotive repair putty due to its popularity. [3] [4] It is also used by sculptors. [5]
There are several types and grades of rubber crepe, mainly distinguished by the grade and pre-processing of the latex used in their manufacture. [2] Pale latex crepe (PLC) is a premium grade, made from raw field latex. Estate brown crepe (EBC) is made from "cup lump" (raw, naturally coagulated rubber from the collection cup) and other coagula.
Benzethonium chloride exhibits a broad spectrum of microbiocidal activity against bacteria, fungi, mold, and viruses. Independent testing shows that benzethonium chloride is highly effective against such pathogens as methicillin-resistant Staphylococcus aureus, Salmonella, Escherichia coli, Clostridioides difficile, hepatitis B virus, hepatitis C virus, herpes simplex virus (HSV), human ...