Two reactive handles
The C=C bond copolymerizes and the anhydride ring esterifies, so one raw material serves UPR, алкидный, rosin and copolymer chemistry.
Малеиновый ангидрид (Массачусетс) is the reactive building block for unsaturated polyester resins, alkyd resins, maleic rosin and styrene–maleic anhydride copolymers, and an intermediate for agrochemicals such as malathion. SUNCHEM supplies MA to resin, coating and synthesis users with a batch COA on every shipment.
Maleic anhydride combines a reactive double bond with an anhydride group, so it can both copolymerize and esterify. In unsaturated polyester resin (УПО) it supplies the unsaturation that styrene later crosslinks; in alkyds, maleic rosin and coatings it adds acid functionality; with styrene it forms SMA copolymers. It is also the starting point for maleic and fumaric acid, succinic and tetrahydrophthalic anhydride, полималеиновый ангидрид, and pesticides such as malathion.
For resin makers, чистота, color and free maleic acid are the numbers that decide resin color and reactivity.
The C=C bond copolymerizes and the anhydride ring esterifies, so one raw material serves UPR, алкидный, rosin and copolymer chemistry.
The MA share in a UPR recipe controls how much unsaturation styrene can crosslink, and with it the cured hardness and heat resistance.
Мы выступаем против вашей чистоты, color and maleic-acid limits and send the batch COA for each lot.
| Параметр | Типичное значение |
|---|---|
| Название продукта | Малеиновый ангидрид (Массачусетс) |
| Синонимы | 2,5-Furandione; cis-butenedioic anhydride |
| Номер КАС. | 108-31-6 |
| ЕС нет. | 203-571-6 |
| Молекулярная формула | C₄H₂O₃ |
| Молекулярный вес | 98.06 |
| вид | Белое твердое вещество (flakes, briquettes or pastilles) |
Чистота, цвет, free maleic acid and ash limits depend on the producer grade and are stated on the TDS and batch COA; лимиты вашего заказа подтверждены в предложении и договоре.
Where maleic anhydride is used, и что необходимо подтвердить перед переключением источника питания.
The largest use. MA is esterified with glycols, often alongside phthalic or isophthalic anhydride, to give the unsaturated backbone that styrene crosslinks in FRP, gelcoats, artificial stone and putties.
Adds acid functionality to alkyd resins, and reacts with rosin to make maleic rosin for printing inks, paper size and coatings.
Copolymerized with styrene to make SMA resins, polymerized to polymaleic anhydride for water treatment, and grafted onto polyolefins to make compatibilizers.
An intermediate for malathion and other agrochemicals, and for maleic acid, фумаровая кислота, succinic anhydride and tetrahydrophthalic anhydride.
| Ваше требование | Что обычно работает |
|---|---|
| General-purpose UPR and alkyd resins | Standard industrial-grade MA |
| Light-colored resins and gelcoats | Specify low color and free maleic-acid limits |
| Bagged charging into batch reactors | Solid MA — flakes, briquettes or pastilles |
| Замена существующего поставщика | Отправьте текущий TDS или COA; мы цитируем параметры, которые вы утверждаете |
Pack size depends on the form (flakes, briquettes or pastilles). Tell us your bag size and pallet requirements with your inquiry.
Храните сумки закрытыми в прохладном месте., сухой, ventilated store. Moisture turns MA into maleic acid, and the dust is a skin and respiratory sensitizer — follow the SDS.
Regulated for transport as a corrosive (И 2215, Сорт 8, PG III).
УПО, алкидный, rosin, copolymer or an intermediate: tell us which one, because color and maleic-acid limits differ.
Чистота, цвет, free maleic acid, ash and iron. Запросите в нашем сертификате подлинности те же параметры, которые указаны в листе входного контроля..
MA picks up moisture. Check bag integrity on arrival and keep opened bags sealed, or the maleic-acid content will rise.
Запустите образец в своем собственном процессе и сохраните утвержденный сертификат подлинности партии в качестве образца для ограничений по контракту..
Tell us the resin or product you make, количество и порт назначения. Добавьте свою текущую спецификацию, и мы сделаем предложение по ней.
| Информация | Пример |
|---|---|
| Приложение | УПО, алкидный, малеиновая канифоль, SMA, средний |
| Требуемая спецификация | Чистота, цвет, free maleic acid |
| Форма & упаковка | Flakes, briquettes or pastilles; bag size |
| Количество | Пробный заказ / ежемесячно / годовой объем |
| Место назначения | Страна и порт |
| Необходимые документы | сертификат подлинности, паспорт безопасности, ТДС, Заявление REACH |
Solvent and intermediate made from maleic anhydride by hydrogenation.
Посмотреть товар →Mainly for unsaturated polyester resins. It is also used in alkyd resins, малеиновая канифоль, SMA copolymers, полималеиновый ангидрид, and as an intermediate for malathion, maleic acid, fumaric acid and succinic anhydride.
Чистота, цвет, free maleic acid, ash and iron. For light-colored resins, color and maleic acid usually matter most.
In closed bags in a cool, сухой, ventilated store. It reacts with moisture to form maleic acid and is a skin and respiratory sensitizer, so follow the SDS for handling.
Да. It is regulated as a corrosive for transport under UN 2215, Сорт 8, PG III.