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Sample report for adhesive category. Other reports may vary in format.
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| 15.17USA - Other Vinyl Acetate (Copolymers) - U.S. Adhesives
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This raw material classification report on other vinyl acetate (copolymers) includes information on vinyl chloride/vinyl acetate copolymers and products derived from polyvinyl acetate not included in any other raw material category. These are polyvinyl alcohol, polyvinyl butyral, polyvinyl formal, and the solution grade copolymers and terpolymers of vinyl chloride and vinyl acetate.
Polyvinyl alcohol (PVOH) is a highly polar, water soluble polymer produced by hydrolyzing polyvinyl acetate. Commercial grades have varying degree of hydrolysis (70-100%) and molecular weight. These variables affect the rheology of aqueous solutions, cold water solubility and flexibility. PVOH is used in adhesives in one of three ways; as a protective colloid, as a modifier to stabilize PVA or starch based adhesives, or as the neat polymer. Polyvinyl alcohol is widely used as a protective colloid in the manufacture of various homopolymers and copolymers latices intended for use in adhesive applications. It is preferred over other colloids because it contributes specific adhesion, oil/plasticizer resistance and wet tack to adhesive latices. Aqueous solutions of PVOH are also used as adhesives. However, lower cost water-soluble resins, such as starches and dextrines, are more commonly used as primary binders and then modified with polyvinyl alcohol to obtain improved properties.
The largest U.S. market for polyvinyl alcohol is textile warp size, where it imparts strength and flexibility to the thread. This application and adhesives are the two largest U.S. markets for PVOH products.
Polyvinyl acetates as a family, Polyvinyl butyral and Polyvinyl formal are condensation polymers of Polyvinyl alcohol. These resins are manufactured by reacting an aldehyde (butyraldehyde or formaldehyde) with polyvinyl alcohol. The degree of hydrolysis of the polyvinyl alcohol and the aldehyde concentration control the chemical composition of the final product in terms of residual hydroxyl functionality and vinyl acetyl/vinyl acetate ratio. Commercial polyvinyl butyral resins generally contain 10-20% vinyl alcohol, 80-90% vinyl butyral and 1% vinyl acetate. Commercial polyvinyl formal resins contain approximately 6% vinyl alcohol, 70-80% vinyl formal and 10-25% vinyl acetate.
The study does not include, as an adhesive, the use of polyvinyl butyral for safety glass interlayer. The safety glass interlayer products are made captively and sold by the basic producers of PVB resin, DuPont and Monsanto. They are not part of the merchant adhesive market in the U.S.
Vinyl chloride / vinyl acetate copolymers, modified copolymers and terpolymers containing either hydroxyl or carboxyl functionality are commercially available at various molecular weights and co-monomer ratios. Unlike PVC monomers, these resins are readily soluble in common oxygenated solvents, such as ketones and esters. Aromatic hydrocarbons also may be used as low cost diluents. This resin classification report on other vinyl acetate copolymers estimates 2003 demand with a historical perspective back to 2000 as well as forecasts through 2005 and 2010 within the U.S. Adhesives Industry. |
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| Report Table of Contents |
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Other Vinyl Acetate (Copolymers) Report - U.S. Adhesives Industry - RAW MATERIAL Market
Market Information - Forecasting Size and Growth Trends
Market Sector Information – Forecasting Size and Growth Trends
Market Segment Information – Forecasting Size and Growth Trends
Formulative Technology Information – Forecasting Size and Growth Trends
Raw Material Suppliers
Growth Opportunities – Size and Growth Trend
Commentary |
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