Process for producing a deprotected alkoxylated polyol
申请人:ARCO Chemical Technology, L.P.
公开号:EP0506424A1
公开(公告)日:1992-09-30
An improved process for the hydrolysis and purification of an alkoxylated polyol containing a ketal protective functionality, and which may be employed to prepare reduced calorie esterified alkoxylated polyol fat mimetics useful in cooking and in food compositions, comprises contacting an aqueous mixture of the protected alkoxylated polyol with an acid to hydrolyse and thus deprotect the alkoxylated polyol,adding a base to neutralise the acid and cause the mixture to form a first phase containing the deprotected alkoxylated polyol and a second phase containing predominantly water, and separating the phases. The protected alkoxylated polyol may be formed by alkoxylating a protected polyol. The deprotected alkoxylated polyol may subsequently be esterified.
This invention describes the synthesis and use of novel energetic poly(phosphazene) materials suitable for binding high explosives. These materials may also be used as explosives in their own right. The materials possess high energy density and are highly amenable to chemical modification thereby allowing for modification to the physical properties of the material. In particular the tacky and rubbery nature of these materials makes them ideal for use as binder and co-binder materials.
This invention describes the synthesis and use of novel energetic poly(phosphazene) materials suitable for binding high explosives. These materials may also be used as explosives in their own right. The materials possess high energy density and are highly amenable to chemical modification thereby allowing for modification to the physical properties of the material. In particular the tacky and rubbery nature of these materials makes them ideal for use as binder and co-binder materials.
This invention describes the synthesis and use of novel energetic poly(phosphazene) materials suitable for binding high explosives. These materials may also be used as explosives in their own right. The materials possess high energy density and are highly amenable to chemical modification thereby allowing for modification to the physical properties of the material. In particular the tacky and rubbery nature of these materials makes them ideal for use as binder and co-binder materials.
This invention describes the synthesis and use of novel energetic poly(phosphazene) materials suitable for binding high explosives, consisting of homopolymer compounds comprising n units of structure (iii):
where R2 = R3 and are each alkyl, alkyl ether or carbohydrate based side chains which contain energetic functionalities including nitro, nitramine, nitrate ester, or azide, and 3 ≤ n ≤ 10000.
These materials may also be used as explosives in their own right. The materials possess high energy density and are highly amenable to chemical modification thereby allowing for modification to the physical properties of the material. In particular the tacky and rubbery nature of these materials makes them ideal for shaping co-binder materials.
本发明描述了适用于结合烈性炸药的新型高能聚(磷苯)材料的合成和使用,该材料由包含 n 个结构(iii)单元的均聚物化合物组成:
其中 R2 = R3 和 R3 分别为烷基、烷基醚或碳水化合物基侧链,这些侧链含有高能官能团,包括硝基、硝胺、硝酸酯或叠氮化物,且 3 ≤ n ≤ 10000。
这些材料本身也可用作炸药。这些材料具有很高的能量密度,非常容易进行化学改性,因此可以改变材料的物理特性。特别是这些材料的粘性和橡胶性质,使其成为塑造共粘合剂材料的理想材料。