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Polyvinyl alcohol (PVOH, PVA, or PVAl) is a water-soluble synthetic polymer. It has the idealized formula [CH 2 CH(OH)] n. It is used in papermaking, textile warp sizing, as a thickener and emulsion stabilizer in polyvinyl acetate (PVAc) adhesive formulations, in a variety of coatings, and 3D printing. It is colourless (white) and odorless.
Formvar refers to any of several thermoplastic resins that are polyvinyl formals, which are polymers formed from polyvinyl alcohol and formaldehyde as copolymers with polyvinyl acetate. They are typically used as coatings, adhesives , and molding materials.
Polyethylene glycol–polyvinyl alcohol (PEG-PVA) brand name Kollicoat IR is a multifunctional excipient [1] used as a pill binder as well as a wet binder. A typical formulation is composed of 25% polyethylene glycol (PEG) and 75% polyvinyl alcohol (PVA); where the vinyl alcohol moieties are grafted on a polyethylene glycol backbone.
It became a public limited company in 1998. [8] The operations in Pakistan continue as Kohinoor Chemical Company (Pvt) Ltd, a separate company. [10] Orion Group bought the state owned Kohinoor Chemical Company (Bangladesh) Limited, a deal made possible by the close friendship of the group chairman with Prime Minister Khaleda Zia, in 1993. [11]
Bangladesh Pratidin: Consumer services Publishing Dhaka: 2010 Newspaper P A Bangladesh Railway: Industrials Railroads Dhaka: 1862 Railroads S A Bangladesh Shipping Corporation: Industrials Marine transportation Chittagong: 1972 State-owned shipping S A Bangladesh Telecommunications Company Limited: Telecommunications Mobile Telecommunications ...
It operates 12 factories in Bangladesh including Ashuganj Fertilizer and Chemical Company Limited in Brahmanbaria, Urea Fertiliser Factory Ltd in Ghorashal and Polash Urea Fertiliser Factory in Palash, Narsingdi. [7] The corporation has liabilities of 51.06 billion taka to state owned banks. [8] BCIC College is run by the corporation. [9]
Carew & Co (Bangladesh) Ltd. is the only licensed distillery producing alcohol made from sugar molasses in Bangladesh and is located at Darshana, Chuadanga, Khulna Division, Bangladesh. It is the only distillery in Bangladesh owned by the Government Of Bangladesh. [ 1 ]
In enzymology, a polyvinyl-alcohol dehydrogenase (acceptor) (EC 1.1.99.23) is an enzyme that catalyzes the chemical reaction polyvinyl alcohol + acceptor ⇌ {\displaystyle \rightleftharpoons } oxidized polyvinyl alcohol + reduced acceptor