Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

 Previous item  Up One Level Next item

polyesters

Resins, plastics, and synthetic fibers based on resins produced by condensation of polyhydric alcohols with polybasic acids. Linear polyesters, e.g., polyethylene terephthalate, are saturated thermoplastic materials that are widely applied in the form of drawn melt-spun fibers and orientated cast film. Unsaturated polyester resins, such as the polycondensate from phthalic anhydride, propylene glycol, and maleic anhydride, will copolymerize with minor proportions of styrene and methyl methacrylate under the influence of an organic peroxide catalyst, to produce thermoset materials.




[Search all CoOL documents]


URL: http://cool.conservation-us.org/don/dt/dt2635.html
Timestamp: Saturday, 19-Nov-2011 13:18:43 PST
Retrieved: Wednesday, 22-Nov-2017 02:02:54 GMT