Polyestercarbonates and methods for the direct incorporation of acids into polycarbonate chains by SSP
    1.
    发明授权
    Polyestercarbonates and methods for the direct incorporation of acids into polycarbonate chains by SSP 有权
    聚酯碳酸酯和通过SSP将酸直接引入聚碳酸酯链中的方法

    公开(公告)号:US06365702B1

    公开(公告)日:2002-04-02

    申请号:US09681747

    申请日:2001-05-31

    IPC分类号: C08G6400

    CPC分类号: C08G63/64 C08G63/80

    摘要: A method for preparing a polyestercarbonate copolymer using solid state polymerization and polyestercarbonates prepared thereby is described. The method comprises preparing a mixture comprising partially crystalline bisphenol A polycarbonate oligomer and hydroxy acids, aliphatic diacids, cycloaliphatic diacids, aromatic diacids or aromatic triacids and subjecting that mixture to solid state polymerization to afford a polyestercarbonate copolymer.

    摘要翻译: 描述了使用固态聚合制备聚酯碳酸酯共聚物的方法和由此制备的聚酯碳酸酯。 该方法包括制备包含部分结晶双酚A聚碳酸酯低聚物和羟基酸,脂族二酸,脂环族二酸,芳族二酸或芳族三酸的混合物,并使该混合物进行固态聚合以得到聚酯碳酸酯共聚物。

    Branched polycarbonate and method
    3.
    发明授权
    Branched polycarbonate and method 有权
    分支聚碳酸酯和方法

    公开(公告)号:US06365703B1

    公开(公告)日:2002-04-02

    申请号:US09681748

    申请日:2001-05-31

    IPC分类号: C08G6400

    CPC分类号: C08G64/14

    摘要: The present invention discloses a vapor phase method of introducing a branching agent such as THPE into a solid polycarbonate while simultaneously crystallizing the solid polycarbonate. The partially crystalline polycarbonate containing a branching agent introduced in this manner is suitable for use in the preparation of branched polycarbonates by solid state polymerization. Branching in the polycarbonates so produced is demonstrated by rheometric measurements. Such branched polycarbonates are known to possess increased material melt strength, shear sensitivity, and complex viscosity ratio, and are particularly well-suited in blow molding applications.

    摘要翻译: 本发明公开了一种将支链剂如THPE引入固体聚碳酸酯中同时结晶固体聚碳酸酯的气相法。 含有以这种方式引入的支化剂的部分结晶聚碳酸酯适用于通过固态聚合制备支链聚碳酸酯。 如此生产的聚碳酸酯中的分支通过流变测量来证明。 已知这种支化聚碳酸酯具有增加的材料熔体强度,剪切灵敏度和复数粘度比,并且特别适用于吹塑应用。

    Preparation of copolycarbonates via solid state polymerization
    5.
    发明授权
    Preparation of copolycarbonates via solid state polymerization 有权
    通过固态聚合制备共聚碳酸酯

    公开(公告)号:US06433126B1

    公开(公告)日:2002-08-13

    申请号:US09681755

    申请日:2001-05-31

    IPC分类号: C08G6400

    CPC分类号: C08G64/30 C08G64/20

    摘要: Polycarbonate copolymers have been prepared by solid state polymerization (SSP). A mixture comprising partially crystalline BPA polycarbonate oligomer having a weight average molecular weight of 10,000 daltons and a source of additional structural units and optionally a catalyst is reacted under SSP conditions to afford a copolycarbonate. Sources of additional structural units include high and low molecular weight polycarbonates incorporating repeat units not derived from BPA and various bisphenols such as BPI, BPM and tetramethyl BPA.

    摘要翻译: 聚碳酸酯共聚物已经通过固相聚合(SSP)制备。 将包含重均分子量为10,000道尔顿的部分结晶BPA聚碳酸酯低聚物和另外的结构单元的源和任选的催化剂的混合物在SSP条件下反应,得到共聚碳酸酯。 其他结构单元的来源包括高分子量聚碳酸酯和低分子量聚碳酸酯,其包含不衍生自BPA的重复单元和各种双酚,如BPI,BPM和四甲基BPA。

    Aromatic-aliphatic copolycarbonates and method
    6.
    发明授权
    Aromatic-aliphatic copolycarbonates and method 有权
    芳香族 - 脂肪族共聚碳酸酯和方法

    公开(公告)号:US06350846B1

    公开(公告)日:2002-02-26

    申请号:US09681752

    申请日:2001-05-31

    IPC分类号: C08G6400

    CPC分类号: C08G64/18 C08G64/30

    摘要: The present invention discloses improved copolycarbonates and methods for their synthesis that involve the incorporation of aliphatic diol carbonates into copolycarbonate chains under solid state polymerization conditions. More particularly, the present invention utilizes diphenyl carbonate in the production of copolycarbonates that exhibit modified thermal properties(lower Tg) relative to analogous simple copolycarbonates. The solid sate polymerization technique possesses a distinct advantage over melt polymerization in that no specialized melt polymerization equipment is required.

    摘要翻译: 本发明公开了改进的共聚碳酸酯及其合成方法,其涉及在固态聚合条件下将脂族二醇碳酸酯引入共聚碳酸酯链中。 更具体地说,本发明利用碳酸二苯酯生产共聚碳酸酯,其相对于类似的简单的共聚碳酸酯具有改进的热性能(较低的Tg)。 固相聚合技术具有优于熔融聚合的明显优点,因为不需要专门的熔融聚合设备。

    Method of crystallizing polycarbonate prepolymer
    7.
    发明授权
    Method of crystallizing polycarbonate prepolymer 有权
    结晶聚碳酸酯预聚物的方法

    公开(公告)号:US06255435B1

    公开(公告)日:2001-07-03

    申请号:US09371452

    申请日:1999-08-10

    IPC分类号: C08G6400

    CPC分类号: C08G64/40 C08G64/20

    摘要: A method of crystallizing an aromatic polycarbonate prepolymer having a molecular weight of from about 1,000 to about 20,000 and having from about 5 to about 95 mole % aryl carbonate terminal end groups, based on total end groups, the method comprising effecting contact of the prepolymer with a crystallizing agent comprising an alcohol and an additive, wherein the additive is effective to increase the rate of solid state polymerization.

    摘要翻译: 一种基于总端基结晶具有约1,000至约20,000分子量和约5至约95摩尔%芳基碳酸酯末端基的芳族聚碳酸酯预聚物的方法,所述方法包括使预聚物与 包含醇和添加剂的结晶剂,其中添加剂有效地提高固态聚合速率。

    Method of crystallizing polycarbonate prepolymer
    8.
    发明授权
    Method of crystallizing polycarbonate prepolymer 失效
    结晶聚碳酸酯预聚物的方法

    公开(公告)号:US06222001B1

    公开(公告)日:2001-04-24

    申请号:US09371450

    申请日:1999-08-10

    IPC分类号: C08G6400

    CPC分类号: C08G64/20 C08G64/40

    摘要: The invention relates to a method of crystallizing an aromatic polycarbonate prepolymer having a molecular weight of from about 1,000 to about 20,000 and having from about 5 to about 95 mole % aryl carbonate terminal end groups, based on total end groups, the method comprising effecting contact of the prepolymer with a crystallizing agent comprising an alcohol, preferably, at least 95% by weight of an alcohol.

    摘要翻译: 本发明涉及一种基于总端基结晶分子量为约1,000至约20,000并具有约5至约95摩尔%芳基碳酸酯末端基的芳族聚碳酸酯预聚物的方法,所述方法包括进行接触 的预聚物与包含醇的结晶剂,优选至少95重量%的醇。

    Process for preparing branched polycarbonates by solid state
polymerization
    9.
    发明授权
    Process for preparing branched polycarbonates by solid state polymerization 失效
    通过固态聚合制备支链聚碳酸酯的方法

    公开(公告)号:US5710238A

    公开(公告)日:1998-01-20

    申请号:US653166

    申请日:1996-05-24

    IPC分类号: C08G64/14 C08G64/30 C08G64/00

    CPC分类号: C08G64/307 C08G64/14

    摘要: This invention involves a novel process for preparing branched polycarbonates employing a solid state polycondensation process; specifically, subjecting a linear crystallized oligomer derived from dihydroxydiaryl compound and a diaryl carbonate to solid state polycondensation process by heating the said oligomer at a temperature which is higher than the glass transition temperature but below its melting point in the presence of a multifunctional phenol and an alkali or alkaline metal salt or bisphenol or tetraalkylammonium hydroxide, carboxylate or bicarboxylate catalyst, the reaction being effected under inert atmosphere.

    摘要翻译: 本发明涉及使用固态缩聚方法制备支链聚碳酸酯的新方法; 具体地说,将来自二羟基二芳基化合物和碳酸二芳基酯的线型结晶低聚物进行固态缩聚,通过在多官能苯酚存在下,在高于玻璃化转变温度但低于其熔点的温度下加热所述低聚物, 碱金属或碱金属盐或双酚或四烷基氢氧化铵,羧酸盐或二羧酸盐催化剂,反应在惰性气氛下进行。