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Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer compound made from the monomer N-vinylpyrrolidone. [1] PVP is available in a range of molecular weights and related viscosities, and can be selected according to the desired application properties.
N-Vinylpyrrolidone (NVP) is an organic compound consisting of a 5-membered lactam ring linked to a (2 carbon) vinyl group.It is a colorless liquid although commercial samples can appear yellowish.
Polyvinylpolypyrrolidone (polyvinyl polypyrrolidone, PVPP, crospovidone, crospolividone, or E1202) is a highly cross-linked modification of polyvinylpyrrolidone (PVP).. The cross-linked form of PVP is used as a disintegrant (see also excipients) in pharmaceutical tablets. [1]
Povidone-iodine is a chemical complex of the polymer povidone (polyvinylpyrrolidone, PVP) and triiodide (I − 3). [24] It is synthesized by mixing the PVP polymer with iodine (I 2), allowing the two to react. [25] It is soluble in cold and mild-warm water, ethyl alcohol, isopropyl alcohol, polyethylene glycol, and glycerol.
It was shut down by B/A's successor company, Gulf Canada, in 1983. Ultramar Canada purchased the 74,000 b/d capacity facility. [2] refinery from Gulf Canada in 1986 and closed it soon after with the loss of 450 jobs. [3] In June 1986 Montreal-based engineering firm Lavalin Inc. announced it was purchasing the refinery and would re-open it. [4]
J.D. Irving Limited (JDI) traces its roots to a sawmill operated in Bouctouche, New Brunswick by its namesake, James Dergavel Irving. [1] J.D. Irving's operations were passed to his children, one of whom, Kenneth Colin Irving, assumed majority ownership and used JDI to expand into pulp and paper and other forestry-related businesses between the 1920s and 1940s.
Gelclair is a medicinal oral gel containing polyvinylpyrrolidone (PVP) and hyaluronic acid [1] that coats the surface of the mouth forming a thin protective film over painful oral lesions, such as those caused by radiotherapy or chemotherapy treatment for cancer.
4-Chloro-α-pyrrolidinovalerophenone (also known as 4-chloro-α-pyrrolidinopentiophenone, 4-chloro-α-PVP, 4Cl-PVP, or 4C-PVP, or alpha-PVP, or flakka) is an emerging recreational designer drug of the pyrrolidinophenone class, similar in structure to α-pyrrolidinopentiophenone (α-PVP). [1]