Continuous preparation of polycarbonate

    公开(公告)号:US06562937B2

    公开(公告)日:2003-05-13

    申请号:US09795180

    申请日:2001-03-01

    IPC分类号: C08H6368

    CPC分类号: C08G64/24

    摘要: In a continuous flow reactor one or more bisphenols is converted by the action of phosgene and aqueous base into a mixture of mono- and bisphenol chloroformates which are then treated with a catalyst, additional aqueous caustic and a monophenol to afford endcapped polycarbonates. At relatively high levels of added monophenol endcapped polycarbonate oligomers are obtained. The method is especially suited for the continuous preparation of endcapped oligomers of tetrabromobisphenol A polycarbonate. The method is characterized by efficient use of phosgene, and conversion of chloroformate groups to carbonate linkages aided by trialkylamine catalysts bearing at least one methyl group on nitrogen, such as N,N-dimethylbutylamine (DMBA).

    POLYETHERSULFONE COMPOSITIONS WITH HIGH HEAT AND GOOD IMPACT RESISTANCE
    46.
    发明申请
    POLYETHERSULFONE COMPOSITIONS WITH HIGH HEAT AND GOOD IMPACT RESISTANCE 有权
    具有高耐热和耐冲击性的聚醚类组合物

    公开(公告)号:US20120130042A1

    公开(公告)日:2012-05-24

    申请号:US13361679

    申请日:2012-01-30

    IPC分类号: C08G75/23

    CPC分类号: C08G75/23 C08L81/06

    摘要: Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and from greater than about 60 mol % to about 95 mol % structural units of formula 2 wherein R1, R2, and R3 are independently at each occurrence a halogen atom, a nitro group, a cyano group, a C1-C12 aliphatic radical, C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical; n, m, q are independently at each occurrence integers from 0 to 4; and Q is a C3-C20 cycloaliphatic radical, or a C3-C20 aromatic radical.

    摘要翻译: Tg大于约225℃的聚醚砜和通过ASTM D256测量的大于约1ft-lb / in的缺口伊佐德值包含约5mol%至小于约40mol%的式1结构单元; 和大于约60mol%至约95mol%的式2的结构单元,其中R 1,R 2和R 3在每次出现时独立地为卤素原子,硝基,氰基,C 1 -C 12脂族基,C 3 -C 12脂环族基团或C 3 -C 12芳族基团; n,m,q各自独立地为0至4的整数; 且Q为C 3 -C 20脂环族基团或C 3 -C 20芳族基团。

    Polyethersulfone compositions with high heat and good impact resistance
    47.
    发明授权
    Polyethersulfone compositions with high heat and good impact resistance 有权
    具有高耐热性和耐冲击性的聚醚砜组合物

    公开(公告)号:US08106135B2

    公开(公告)日:2012-01-31

    申请号:US11552276

    申请日:2006-10-24

    CPC分类号: C08G75/23 C08L81/06

    摘要: Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and from greater than about 60 mol % to about 95 mol % structural units of formula 2 wherein R1, R2, and R3 are independently at each occurrence a halogen atom, a nitro group, a cyano group, a C1-C12 aliphatic radical, C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical; n, m, q are independently at each occurrence integers from 0 to 4; and Q is a C3-C20 cycloaliphatic radical, or a C3-C20 aromatic radical.

    摘要翻译: Tg大于约225℃的聚醚砜和通过ASTM D256测量的大于约1ft-lb / in的缺口伊佐德值包含约5mol%至小于约40mol%的式1结构单元; 和大于约60mol%至约95mol%的式2的结构单元,其中R 1,R 2和R 3在每次出现时独立地为卤素原子,硝基,氰基,C 1 -C 12脂族基,C 3 -C 12脂环族基团或C 3 -C 12芳族基团; n,m,q各自独立地为0至4的整数; 且Q为C 3 -C 20脂环族基团或C 3 -C 20芳族基团。

    Copolyetherimides
    49.
    发明授权
    Copolyetherimides 有权
    共聚酰亚胺

    公开(公告)号:US07605222B2

    公开(公告)日:2009-10-20

    申请号:US11210164

    申请日:2005-08-22

    IPC分类号: C08G73/00

    CPC分类号: C08G73/1046 C08G73/124

    摘要: Copolyetherimides compositions having high glass transition temperatures and outstanding ductility are presented. The copolyetherimides having Mw of at least 40,000 comprising isomeric bis(phthalimide) structural units within a relatively narrow range of isomer proportions exhibited Tgs of at least 240° C. and outstanding Notched Izod values. The copolyetherimides comprise oxydianiline residues and structural units of the formulas (I) and (II) (III). The copolyetherimides are characterized by a mole percentage of structural units derived from 4,4′-biphenol in a range from about 55% to about 85% of all bisphenol-derived structural units present in the copolyetherimide composition; a mole percentage of structural units derived from bisphenol A in a range from about 45% to about 15% of all bisphenol-derived structural units present in the copolyetherimide composition; and a total mole percentage of structural units derived from bisphenol A or 4,4′-biphenol of at least 95% of all bisphenol-derived structural units present in the copolyetherimide composition.

    摘要翻译: 提出了具有高玻璃化转变温度和优异延展性的共聚酰亚胺组合物。 具有至少40,000的Mw的共聚醚酰亚胺,其包含在相对窄的异构体比例范围内的异构双(邻苯二甲酰亚胺)结构单元,其Tg至少为240℃,并且具有优异的缺口伊佐德值。 共聚醚酰亚胺包括氧化二苯胺残基和式(I)和(II)(III)的结构单元。 共聚醚酰亚胺的特征在于衍生自4,4'-联苯酚的结构单元的百分比在共聚醚酰亚胺组合物中存在的所有双酚衍生的结构单元的约55%至约85%的范围内; 来自双酚A的结构单元的摩尔百分比在存在于共聚醚酰亚胺组合物中的所有双酚衍生的结构单元的约45%至约15%的范围内; 并且衍生自双酚A或4,4'-联苯酚的结构单元的总摩尔百分比为存在于共聚醚酰亚胺组合物中的所有双酚衍生的结构单元的至少95%。

    Carboxy-terminated oligomeric polyester compositions and method for making
    50.
    发明授权
    Carboxy-terminated oligomeric polyester compositions and method for making 失效
    羧基封端的低聚聚酯组合物及其制备方法

    公开(公告)号:US07557174B2

    公开(公告)日:2009-07-07

    申请号:US11528206

    申请日:2006-09-27

    IPC分类号: C08G63/00 C08G63/87 C08F20/00

    摘要: The present invention provides carboxy-terminated oligomeric polyester compositions useful in the preparation of “weatherable” polymeric materials, for example weatherable copolyestercarbonates. In one aspect the present invention provides an oligomeric polyester composition comprising structural units derived from at least one diacid, at least one diaryl carbonate and at least one diol. The structural units derived from the diacid are present in a molar excess of from about 10% to about 40% based on a ratio of moles of diacid-derived structural units to moles of diol-derived structural units present in the oligomeric polyester composition. The oligomeric polyester composition is further characterized by the presence of at least some phenoxy end groups.

    摘要翻译: 本发明提供了可用于制备“耐候性”聚合物材料的羧基封端的低聚聚酯组合物,例如耐候性共聚酯碳酸酯。 在一个方面,本发明提供了包含衍生自至少一种二酸,至少一种碳酸二芳酯和至少一种二醇的结构单元的低聚聚酯组合物。 基于二酸衍生的结构单元的摩尔数与存在于低聚聚酯组合物中的二醇衍生的结构单元的摩尔数的比例,衍生自二酸的结构单元的摩尔过量为约10%至约40%。 低聚聚酯组合物的特征还在于存在至少一些苯氧基端基。