Liquid crystalline polyesters are among the first such polymers to be used industrially.
Polyesters are also used to make bottles, films, tarpaulin, liquid crystal displays, holograms, filters, dielectric film for capacitors, film insulation for wire, and insulating tapes.
Here the unsaturation is found in the alcohol part of the polyester.
Polyester fabrics sometimes have a "less natural" feel when compared to similarly woven fabrics made from natural fibers, such as cotton.
The cured polyester can then be sanded and polished to a high-gloss, durable finish.
The double bond of the unsaturated polyester reacts with styrene resulting in a 3-D crosslinked structure, the thermoset material.
Unsaturated polyesters are commonly used as casting materials, fiberglass laminating resins, and non-metallic auto-body fillers.
Synthesis of polyesters is generally achieved by what are called polycondensation reactions.
Fiberglass reinforced unsaturated polyesters find wide application in the bodies of yachts and automobiles.
Thermoplastic polyesters, such as PET, may be heated and processed into different forms, including fibers, sheets, and three-dimensional shapes.
Among the synthetic types of polyester, one of the most important is known as polyethylene terephthalate (PET); another is polycarbonate.
The unsaturation in the polyester is generally obtained by the use of maleic acid or fumaric acid, each of which has a carbon-carbon double bond in its molecular structure.
Some polyesters are thermosetting resins that are widely used in the bodies of automobiles and yachts.
Polyester fiberfill is also used to stuff pillows, comforters, and cushion padding.
Polyester is the name for a class of polymers that contain the ester functional group in their main chain.
Polyester is also widely used as a finish on high-quality wooden products like guitars, pianos and vehicle/yacht interiors.
The thixotropic properties of the sprayable form of polyester make it ideal for use on open-grain timbers, as it can quickly fill the grain and has a high build film thickness per coat.