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    • 7. 发明申请
    • PROCESS FOR PREPARING ALIPHATIC POLYESTERS
    • 用于生产脂肪族聚酯
    • WO1998002480A1
    • 1998-01-22
    • PCT/BE1997000081
    • 1997-07-11
    • BRUSSELS BIOTECHFRITZ, Hans-GerhardJACOBSEN, SvenJEROME, RobertDEGEE, PhilippeDUBOIS, Philippe
    • BRUSSELS BIOTECH
    • C08G63/82
    • C08K5/13C08G63/78C08G63/823C08K5/524C08L67/00
    • The invention relates to an aliphatic polyester and/or copolyester, obtained from a polyreaction of at least one monomer from the group comprising lactides, lactones, cyclic carbonates and cyclic anhydrides. To be able to prepare the aliphatic polyester and/or copolyester in a one-stage process, the invention proposes that in the polyreaction a reaction mixture is used which contains at least one catalyst of the general formula (M) (X1, X2... Xm), M being a metal selected from the group 3 to 12 of the periodic system and from the elements A1, Ga, In, Tl, Sn, Pb, Sb and Bi, (X1, X2... Xm) being a substituent selected from one of the families of alkyls, aryls, oxides, carboxylates, halogenides, alkoxides and compounds with elements from group 15 and/ or 16 of the periodic system, m being an integer in the range of from 1 to 6, and n being an integer in the range of from 0 to 6, and which also contains a co-catalyst of the general formula (Y) (R1, R2... Rq)p, Y being an element selected from the group 15 or 16 of the periodic system, (R1, R2... Rq) being a subst ituent selected from one of the families of the alkyls, aryls, oxides, halogenides, oxyalkyls, aminoalkyls, thiolkyles, phenoxides, aminoaryls, thioaryls, and q and p corresponding to the values for m and n. The invention also relates to a representation of polylactides with a combination of tin-bis(2-ethylhexanoate) and triphenylphosphine, and a process for preparing the aliphatic polyester and/or copolyester in an extruder.
    • 当从选自丙交酯,内酯,环状碳酸酯和环状酸酐中的至少一种单体的聚合反应得到的脂肪族聚酯和/或共聚酯,是使得脂族聚酯和/或共聚酯可以在单一阶段中制备,建议 的反应混合物是在含有通式(M)的至少一种催化剂在聚合反应中使用的(X1,X2 ... XM)n,其中M是选自第3周期表的12和从元件A1的金属, 镓,铟,铊,锡,铅,锑和铋,(X1,X2 ... XM)n是从烷基,芳基,氧化物,Carbocylate,卤化物,醇盐,和包含来自元素的化合物的化合物类别中的一个中的取代基 组15和/或周期表的第16,m是整数,从1至6,并且n是整数,从0至6,并进一步包含通式(Y)中的至少一种助催化剂(R 1,R 2 ... RQ)P,所述Y是选自15族或周期表的第16族的元素,(R1,R2 ... RQ)是从烷基,芳基,氧化物,卤化物化合物类中的一个的取代基, 氧烷基,氨基烷基,Thiolkyle,酚盐,Aminoaryle,Thioaryle,和q和p为m和n,分别的值。 特别地,聚交酯与锡的组合的表示将描述双(2-乙基己酸)和三苯基膦。 此外,对于脂肪族聚酯和/或共聚酯的制备方法在挤出机中提出。