Method for manufacturing dialkyl carbonate
    21.
    发明授权
    Method for manufacturing dialkyl carbonate 有权
    碳酸二烷基酯的制造方法

    公开(公告)号:US06258923B1

    公开(公告)日:2001-07-10

    申请号:US09584672

    申请日:2000-05-31

    IPC分类号: C08O6400

    CPC分类号: C07C68/005 C07C69/96

    摘要: An efficient method for manufacturing a dialkyl carbonate from CO, O2, and an alcohol which uses a catalyst comprising: (i) a cupric halide; and (ii) a compound capable of producing a copper halide alkoxide by reaction with a cupric halide.

    摘要翻译: 一种从CO,O 2和使用催化剂的醇制造碳酸二烷基酯的有效方法,包括:(ⅰ)卤化铜; 和(ii)能够通过与卤化铜反应制备卤化铜醇盐的化合物。

    Manufacturing method for bisphenols and a manufacturing method for
polycarbonate
    22.
    发明授权
    Manufacturing method for bisphenols and a manufacturing method for polycarbonate 有权
    双酚的制造方法和聚碳酸酯的制造方法

    公开(公告)号:US6008315A

    公开(公告)日:1999-12-28

    申请号:US208651

    申请日:1998-12-10

    摘要: A phenol and a ketone are reacted to form bisphenol, and the liquid bisphenol obtained or a mixed solution of said solution and a phenol is filtered through a calcined metal filter to obtain bisphenol which makes it possible to efficiently obtain bisphenol which either does not contain fine particulate impurities or contains such impurities only in minute amounts, and a method for manufacturing polycarbonate using bisphenol obtained by this method. The filtration grade of the calcined metal filter should be 1.0 .mu.m or less. After filtering, the calcined metal filter can be backwashed or chemically washed and then reused. The bisphenol should preferably be bisphenol A.

    摘要翻译: 使苯酚和酮反应形成双酚,所得到的液体双酚或所述溶液与苯酚的混合溶液通过煅烧金属过滤器过滤,得到双酚,可以有效地获得不含微细的双酚 颗粒杂质或仅含有这些杂质的微量元素,以及使用该方法得到的使用双酚的聚碳酸酯的制造方法。 煅烧金属过滤器的过滤等级应在1.0μm以下。 过滤后,煅烧后的金属过滤器可以进行反冲洗或化学洗涤,然后再使用。 双酚优选为双酚A.

    Copolycarbonate, a copolycarbonate composition, and a method for their
manufacture
    23.
    发明授权
    Copolycarbonate, a copolycarbonate composition, and a method for their manufacture 失效
    共聚碳酸酯,共聚碳酸酯组合物及其制造方法

    公开(公告)号:US5670605A

    公开(公告)日:1997-09-23

    申请号:US575566

    申请日:1995-12-20

    摘要: A heat resistant copolycarbonate comprises a component of the formula: ##STR1## and a component selected from: ##STR2## R.sup.1 and R.sup.2 are same or different halogens or monovalent hydrocarbons, R.sup.3, R.sup.4, R.sup.6 and R.sup.7 are hydrogen atoms or monovalent hydrocarbons, R.sup.5 and R.sup.8 are bivalent hydrocarbons, R.sup.a, R.sup.b, R.sup.c R.sup.d, R.sup.e, R.sup.f, R.sup.g R.sup.j, R.sup.k and R.sup.l are the same or different halogen atoms, hydrocarbon groups having 1-10 carbon atoms, or hydrocarbon groups having 1-10 carbon atoms which are at least partially halogen-substituted and R.sup.b and R.sup.c may also be hydrogen, m, n, s, t, u, v and w are integers from 0-4, p and q are integers from 0-3 and r is an integer from 1-10.

    摘要翻译: 耐热共聚碳酸酯包括下式的组分:选自以下成分: 在这些式中,X是 ,R1和R2是相同或不同的卤素或一价 烃,R3,R4,R6和R7是氢原子或一价烃,R5和R8是二价烃,Ra,Rb,Rc Rd,Re,Rf,Rg Rj,Rk和R1是相同或不同的卤素原子,烃基 具有1-10个碳原子,或具有至少部分卤素取代的1-10个碳原子的烃基,R b和R c也可以是氢,m,n,s,t,u,v和w是0的整数 -4,p和q为0-3的整数,r为1-10的整数。

    Copolymerized polycarbonates
    24.
    发明授权
    Copolymerized polycarbonates 失效
    共聚聚碳酸酯

    公开(公告)号:US5606009A

    公开(公告)日:1997-02-25

    申请号:US390200

    申请日:1995-02-17

    CPC分类号: C08G64/307 C08G64/06

    摘要: The present invention provides copolymerized copolyester-carbonates having improved flow and formability, in addition to excellent mechanical properties, heat resistance, transparency, and water resistance obtained by copolymerization of two or more aromatic dihydroxy compounds and a compound capable of reacting with those aromatic dihydroxy compounds to form carbonate linkages, characterized in that, of all the constituent repeating units derived from aromatic dihydroxy compounds, 2-40 mole % are derived from resorcin and/or substituted resorcins.

    摘要翻译: 本发明提供具有改善的流动性和成型性的共聚共聚酯 - 碳酸酯,除了通过两种或更多种芳族二羟基化合物和能够与这些芳族二羟基化合物反应的化合物的共聚合获得的优异的机械性能,耐热性,透明性和耐水性 形成碳酸酯键,其特征在于,在衍生自芳族二羟基化合物的所有构成重复单元中,2-40摩尔%衍生自间苯二酚和/或取代的芦荟蛋白。

    Copolycarbonates and manufacturing method for them
    25.
    发明授权
    Copolycarbonates and manufacturing method for them 失效
    共聚碳酸酯及其制备方法

    公开(公告)号:US5550205A

    公开(公告)日:1996-08-27

    申请号:US342987

    申请日:1994-11-21

    CPC分类号: C08G64/307 C08G64/06

    摘要: To provide novel polycarbonates and a manufacturing method for them.Copolycarbonates obtained by copolymerizing at least two aromatic dihydroxy compounds and a compound capable of introducing carbonate links. Preferably, they contain, as the components derived from the aromatic dihydroxy compounds, constituent units described by formulas [I] and [II] in proportions of from 8.times.10.sup.-5 to 3.times.10.sup.-2 moles of [II] per mole of [I], and preferably they have a limiting viscosity number [.eta.] of from 0.2 to 1.2 dL/g, as measured in methylene chloride at 20.degree. C. ##STR1## (X, Y,: Alkylene, cycloalkylene, --O--, --S--, --SO--, OR --SO.sub.2 --. R.sup.1, R.sup.2, R.sup.7, R.sup.8 : hydrocarbon group with from 1 to 10 carbon atoms which may be substituted with halogen; or a halogen atom. m, n, p: Integers ranging from 0 to 4, indicating the number of substituents. q: Integer ranging from 0 to 3, indicating the number of substituents. R.sup.6 : Straight-chain, branched, or cyclic hydrocarbon group with from 1 to 20 carbon atoms which may be substituted with hydrogen atoms or halogen; or a halogen atom).Manufacturing method for said copolycarbonates in which the aromatic dihydroxy compounds and carbonic acid diesters are melt-polycondensed in the presence of an alkali metal or alkaline earth metal catalyst.The copolycarbonates of the invention have excellent melt elasticity and melt strength as well as excellent hue, heat resistance, moisture resistance, and transparency.

    摘要翻译: 提供新的聚碳酸酯及其制备方法。 通过共聚至少两种芳族二羟基化合物和能够引入碳酸酯连接的化合物而获得的共聚碳酸酯。 优选地,作为衍生自芳族二羟基化合物的组分,由式[I]和[II]描述的组分单元含有每摩尔[I]的8×10-5至3×10-2摩尔[II]的比例, 并且优选它们的特性粘度数η为0.2-1.2dL / g,如在二氯甲烷中在20℃下测量的。[II](X,Y,:亚烷基, 亚环烷基,-O - , - S - , - SO-,OR -SO 2 - ,R 1,R 2,R 7,R 8:可以被卤素取代的具有1至10个碳原子的烃基; n:p:整数为0〜4,表示取代基数q:整数为0〜3,表示取代基数R6:直链,支链或环状烃基与1〜20碳 可以被氢原子或卤素取代的原子;或卤素原子)。 其中芳族二羟基化合物和碳酸二酯在碱金属或碱土金属催化剂存在下熔融缩聚的所述共聚碳酸酯的制备方法。 本发明的共聚碳酸酯具有优异的熔体弹性和熔体强度,以及优异的色相,耐热性,耐湿性和透明度。

    Recycle method for polycarbonate resin waste
    28.
    发明授权
    Recycle method for polycarbonate resin waste 有权
    聚碳酸酯树脂废物回收方法

    公开(公告)号:US07105632B2

    公开(公告)日:2006-09-12

    申请号:US10707033

    申请日:2003-11-17

    IPC分类号: C08F6/00

    摘要: Disclosed is a method for recycling polycarbonate using melt polycondensation apparatus. A polycarbonate polycondensation component is introduced into transesterification polymerization equipment and subjected to one or both of a transesterification reaction and a polycondensation reaction. The polycarbonate polycondensation component has an OH group concentration and comprises one or both of polycarbonate waste resin and polycarbonate oligomer. The OH group concentration of the polycarbonate polycondensation component is adjusted either before or during the transesterification and/or polycondensation reactions.

    摘要翻译: 公开了一种使用熔融缩聚装置再循环聚碳酸酯的方法。 将聚碳酸酯缩聚组分引入酯交换聚合设备中并进行酯交换反应和缩聚反应中的一种或两种。 聚碳酸酯缩聚组分具有OH基浓度并且包含聚碳酸酯废树脂和聚碳酸酯低聚物中的一种或两种。 在酯交换和/或缩聚反应之前或期间调节聚碳酸酯缩聚组分的OH基浓度。

    Recycle process for polycondensation resins
    29.
    发明授权
    Recycle process for polycondensation resins 有权
    缩聚树脂的回收工艺

    公开(公告)号:US06797803B2

    公开(公告)日:2004-09-28

    申请号:US10372892

    申请日:2003-02-24

    IPC分类号: C08G6400

    摘要: A method of recycling fusible polycondensation resin waste in a fusion polymerization apparatus is disclosed. The method of recycling polycondensation resins comprises adding polycondensation resin waste directly to a fusion polymerization apparatus to carry out the polycondensation reaction. The polycondensation resin waste may be supplied from any point of the polycondensation apparatus to carry out the exchange reaction and/or the polycondensation reaction between the resin being prepared in the apparatus and the resin waste supplied. The method may be carried out in a continuous fusion polycondensation system with more than one polymerization reactor connected in series. The polycondensation resin waste may be supplied from the outlet of a polymerization reactor during the initial stage of the polycondensation process (oligomerisation process) to carry out the exchange reaction and/or the polycondensation reaction between the resin waste and the resin being prepared in the later stage of the polycondensation process in a continuous fusion polycondensation apparatus with more than one polymerization reactor connected in series.

    摘要翻译: 公开了一种在熔融聚合设备中回收易熔缩树脂废料的方法。 缩聚缩聚树脂的方法包括将缩聚树脂废物直接加入熔融聚合装置进行缩聚反应。 缩聚树脂废物可以从缩聚装置的任何点供应,以进行交换反应和/或在装置中制备的树脂与供应的树脂废料之间的缩聚反应。 该方法可以在具有多于一个串联连接的聚合反应器的连续熔融缩聚体系中进行。 缩聚树脂废物可以在缩聚过程的初始阶段(低聚过程)从聚合反应器的出口供应,以进行树脂废料和后面制备的树脂之间的交换反应和/或缩聚反应 在具有多个串联的聚合反应器的连续熔融缩聚装置中缩聚过程的阶段。

    Method for manufacturing polycarbonate
    30.
    发明授权
    Method for manufacturing polycarbonate 有权
    制造聚碳酸酯的方法

    公开(公告)号:US06455667B1

    公开(公告)日:2002-09-24

    申请号:US09455194

    申请日:1999-12-06

    IPC分类号: C08F600

    CPC分类号: C08G64/307

    摘要: The present invention provides a method for manufacturing polycarbonate with excellent dwell stability (e.g., thermal stability and hue stability) during melting and molding, as well as with a low content of impurities. The present invention further relates to a method for manufacturing polycarbonate wherein the molten polycarbonate is filtered through a passivation treated metal filter.

    摘要翻译: 本发明提供了一种制造在熔融和模制期间具有优异的停留稳定性(例如热稳定性和色调稳定性)以及低含量杂质的聚碳酸酯的方法。 本发明还涉及一种制造聚碳酸酯的方法,其中熔融聚碳酸酯通过钝化处理的金属过滤器过滤。