polyvinyl alcohol


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polyvinyl alcohol

A water-soluble synthetic resin used in preparing medicines, esp. ophthalmic solutions.
See also: alcohol

wetting solution 

A solution that (1) transforms a hydrophobic surface into a hydrophilic one; (2) acts as a lubricant; (3) helps to clean the surface; (4) helps to prevent contamination of the lens while being inserted. It is spread on both surfaces of a rigid contact lens prior to insertion. However, the effect of a wetting solution only lasts a short time because it is quickly removed by the tear layer. A common wetting agent is polyvinyl alcohol, which also has viscosity building properties. See enzyme; artificial tears.

polyvinyl alcohol,

n a complex alcohol that is soluble in water and is used as an emulsifier and adhe-sive.
References in periodicals archive ?
Region market overview covers the following: production of polyvinyl alcohol in a region/country, consumption trends, price data, trade in the recent year and manufacturers
To prepare composite membranes, BC microfibrils and polyvinyl alcohol (PVA) 4% aqueous solution were very well mixed and then rolled into sheets.
The purpose of this framework agreement is the supply of stationery from the Bank of France polyvinyl alcohol for coating special paper that is: PVA.
The Worldwide Polyvinyl alcohol (PVA) Industry Report - Forecasts to 2020 is a professional and in-depth study on the current state of the PVA industry.
It's made of a little borax, a little polyvinyl alcohol, and a little cornstarch, mixed together to make a bouncing ball like silly putty.
That was followed by Union Carbide's modified polyvinyl alcohol additive.
At the other end of the quality spectrum are photo-quality ink jet papers and papers coated with silica pigment using polyvinyl alcohol binder.
The tumor blush was treated with polyvinyl alcohol particles and both retrievable and nonretrievable coils.
a pneumatic radial tire comprising at least two belt reinforcing layers, at least one of which layers being a belt reinforcing layer composed of high modulus polyvinyl alcohol fiber (PVA) cords or PVA fiber cords embedded in rubber, characterized in that a cord tenacity S (kg) and a cord elongation at break U (%) of said PVA fiber cord taken out from said belt reinforcing layer and an end count T per 5 cm of said belt reinforcing layer at a crown center portion satisfy the following relationship:
Contract notice: Supply polyvinyl alcohol coating for special paper that is: pva.
Polyvinyl acetate (PVA) and polyvinyl alcohol (PVOH) were the major application segments which together accounted for over 85% of total market volume in 2013.
Table 96: French Historic Review for Sealants by Chemical Type - Anaerobic, Acrylic, Latex, Bitumen, Butyl Rubber, Epoxy, Oleoresinous, Polysulphide, Polyurethane, Polyvinyl-based, Polyvinyl Alcohol, Polyvinyl Chloride-based, Reclaimed Rubber, Silicone, Styrene Butadiene Rubber, Thermoplastic Rubber, and Miscellaneous Markets Independently Analyzed with Annual Consumption Figures in Million Pounds for Years 2004 through 2009 (includes corresponding Graph/Chart) III-54