Automotive safety glass

The most active -butyraldehyde derivatives are expected to be PVB, as more regions require automotive safety glass, and trimethylolpropane. Overall annual growth in -butyraldehyde through 1993 is expected to be 0.9% in the United States and 1.2% in Japan. No growth in -butyraldehyde consumption is expected in Western Europe through 1993. 

The concept of protection of one layer of material by another as described in the previous category. Clad Metals, has been extended in a rather unique way to automotive safety glass. Ordinary window glass... 

The commercial process for the production of vinyl acetate monomer (VAM) has evolved over the years. In the 1930s, Wacker developed a process based upon the gas-phase conversion of acetylene and acetic acid over a zinc acetate carbon-supported catalyst. This chemistry and process eventually gave way in the late 1960s to a more economically favorable gas-phase conversion of ethylene and acetic acid over a palladium-based silica-supported catalyst. Today, most of the world s vinyl acetate is derived from the ethylene-based process. The end uses of vinyl acetate are diverse and range from die protective laminate film used in automotive safety glass to polymer-based paints and adhesives. 

Thickening agent for various suspension and emulsion systems packaging film, wet-strength adhesive Automotive safety glass as the interlayer... 

Vinyl acetate monomer (VAM) is an important chemical intermediate used in the production of several types of paints, adhesives as wallpaper paste and wood glue, and surface coatings such as the protective laminate films in automotive safety glass [2,104,237,238]. 

Poly(vinyl butyral). The polymer poly(vinyl butyral) (PVB) was first used in automotive safety glass in 1938 to prevent flying glass resulting from automobile accidents and continues to be utilized in the twenty-first century for this purpose (Figure 19). 

Polyvinyl butyral resins n. A member of the polyvinyl acetal family. Resins formed by reacting polyvinyl alcohol with butyraldehyde. It is a rough, sticky, colorless, flexible solid, used primarily as the interlayer in automotive safety glass. Other applications include adhesive formulations, base resin for coatings, solutions for rendering fabrics resistant to water, staining, and abrasion. 

About 90% of vinyl acetate production is used to manufacture polyvinyl acetate (PVA), which is used to make white glue and other adhesives. Also, PVA Is hydrolyzed to polyvinyl alcohol for use as a water-soluble adhesive. In addition, polyvinyl alcohol Is used as a feedstock In the production of polyvinyl butyral which Is used as a clear adhesive to make laminated automotive safety glass. 

Another well-established use of UV/visible lighf curing adhesives is glass, a plastics bonding in the automotive industry. Typical applications are lamination of safety glass, fastening of rear-view mirrors to windshields, and assembly of headlights. ... 

Beyond the well known safety glass commonly used in automotive windshields, glass laminates are incorporated as windows into trains, airplanes, ships, and nearly every other mode of transportation. 

Laminating to produce safety-glass parts, as for automotive windows, is a common practice. A sheet of resin, such as polyvinyl buivral. is placed between properly sized sheets of glass the whole is exposed to slightly elevated temperatures and pressures, to bond the glass tightly to the resin. 

Major polymer applications safety glass interlayer (automotive windshields), control of light, heat and sound in construction glass, bulletproof glass, adhesives and sealants, binders for rocket propellant, photoconductive papers, magnetic tapes, powder coating, wood sealers and primers, inks, ceramic binders, dry toners, wash primers, composite fiber binders... 

Butadte . [DuPont] Polyvinyl butytal resin she g wiA uv absorbent for safety glass laminates for automotive windshields and architectural qtplics. 

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