发明名称 |
processo para purificar metil metacrilato, metil metacrilato, e, polímero. |
摘要 |
A process for purifying methyl methacrylate (MMA) is described. The process involves contacting liquid MMA having impurities therein with a sulphonic acid resin, in the presence of formaldehyde or a suitable source of methylene or ethylene of formula I. R5 and R6 are independently selected from C1-C12 hydrocarbons or H; X is either O or S; n is an integer from, 1 to 100; and m is 1 or 2: The compound of formula I may be suitable source of formaldehyde. |
申请公布号 |
BRPI0922574(A2) |
申请公布日期 |
2015.12.15 |
申请号 |
BR2009PI22574 |
申请日期 |
2009.12.11 |
申请人 |
LUCITE INTERNATIONAL UK LIMITED |
发明人 |
DAVID WILLIAM JOHNSON;TREVOR HUW MORRIS |
分类号 |
C07C69/54;C07C67/60 |
主分类号 |
C07C69/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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