Polyester resins are unsaturated resins formed by the reaction of dibasic organic acids and polyhydric alcohols. Polyester resins are used in sheet moulding compound, bulk moulding compound and the toner of laser printers. Wall panels fabricated from polyester resins reinforced with fiberglass — so-called fiberglass reinforced plastic — are typically used in restaurants, kitchens, restrooms and other areas that require washable low-maintenance walls. Unsaturated polyesters are condensation polymers formed by the reaction of polyols, organic compounds with multiple alcohol or hydroxy functional groups, with saturated or unsaturated dibasic acids. Typical polyols used are glycols such as ethylene glycol; acids used are phthalic acid and maleic acid. Water, a by-product of esterification reactions, is continuously removed, driving the reaction to completion. The use of unsaturated polyesters and additives such as styrene lowers the viscosity of the resin. The initially liquid resin is converted to a solid by cross-linking chains.
The numerical value of Polyester resin in Chaldean Numerology is: 9
The numerical value of Polyester resin in Pythagorean Numerology is: 2
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"Polyester resin." Definitions.net. STANDS4 LLC, 2017. Web. 29 Mar. 2017. <http://www.definitions.net/definition/Polyester resin>.