順酐主要應用于玻璃鋼行業的原料不飽和聚酯樹脂（UPR）；加氫類產品中的1，4-丁二醇（BDO）、四氫呋喃（THF）和γ-丁內酯（GBL）；也應用于涂料、潤滑油添加劑、農藥、酒石酸、琥珀酸及酐、四氫苯酐、改性松香等方面。
Maleic anhydride is mainly used as raw material unsaturated polyester resin (UPR) in FRP industry; 1,4-butanediol (BDO), tetrahydrofuran (THF) and γ- Butyrolactone (GBL); It is also used in coatings, lubricating oil additives, pesticides, tartaric acid, succinic acid and anhydride, tetrahydrophthalic anhydride, modified rosin, etc.
加氫類產品：順酐在加氫類產品（包括BDO、THF和GBL等）中的應用，非常是在新型熱塑性工程塑料聚對苯二甲酸丁二醇酯（PBT）和作為氨綸原料的聚四亞甲基醚二醇（PTMEG）中的應用，是過去10年間乃至今后較長一段時間內，能夠大幅拉動全世界順酐產品迅速增長的主要因素。
Hydrogenation products: the application of maleic anhydride in hydrogenation products (including BDO, THF, GBL, etc.), especially in new thermoplastic engineering plastics polybutylene terephthalate (PBT) and polytetramethylene ether glycol (PTMEG) as raw material of spandex, is in the past 10 years and even for a long time in the future, It is the main factor that can greatly drive the rapid growth of maleic anhydride products all over the world.
不飽和聚酯樹脂（UPR）：是熱固型樹脂的主要品種之一，由于其優良的機械性能、電性能和耐化學腐蝕性能，且加工工藝簡便，因此應用廣泛。目前中國可以經營400余個牌號的UPR，主要品種包括鄰苯型、間苯型、對苯型、雙酚A型等，按用途和功能分類包括通用樹脂、耐化學品樹脂、阻燃樹脂、澆注樹脂、柔性樹脂、人造大理石、BMC與DMC樹脂、裝飾類樹脂和特種樹脂等。
Unsaturated polyester resin (UPR): it is one of the main varieties of thermosetting resin. It is widely used because of its excellent mechanical properties, electrical properties, chemical corrosion resistance and simple processing technology. At present, more than 400 brands of UPR can be operated in China. The main varieties include o-benzene type, m-benzene type, p-benzene type and bisphenol a type. According to the purpose and function, they include general resin, chemical resistant resin, flame retardant resin, pouring resin, flexible resin, artificial marble, BMC and DMC resin, decorative resin and special resin.
涂料：順酐在涂料方面的應用主要是醇酸樹脂涂料和氨基樹脂涂料。醇酸樹脂涂料是18大類涂料中消費量的一類，產量和消費量約占涂料總量的三分之一。醇酸樹脂具有良好的附著力、光澤度和抗腐蝕等性能，廣泛用于建筑涂裝、機械和汽車涂裝、家俱以及防腐涂裝；氨基樹脂涂料也有良好的硬度、光澤和保光保色性能，廣泛用于輕工家電產品的裝飾涂裝。
Coatings: maleic anhydride is mainly used in alkyd resin coatings and amino resin coatings. Alkyd resin coating is the largest consumption among the 18 categories of coatings, and its output and consumption account for about one third of the total amount of coatings. Alkyd resin has good adhesion, gloss and corrosion resistance. It is widely used in architectural coating, mechanical and automotive coating, furniture and anti-corrosion coating; Amino resin coatings also have good hardness, gloss and color retention properties. They are widely used in decorative coating of light industrial household appliances.
