Polycarbonate resin
    1.
    发明授权
    Polycarbonate resin 失效
    聚碳酸酯树脂

    公开(公告)号:US06316580B1

    公开(公告)日:2001-11-13

    申请号:US09674396

    申请日:2000-12-29

    IPC分类号: C08G6402

    CPC分类号: C08G64/24

    摘要: A polycarbonate resin obtained by reacting a carbonate raw material with a dihydroxy compound, having: a ratio (Mw/Mn) of a weight-average molecular weight (Mw) to a number-average molecular weight (Mn) of not more than 2.2:1, calculated as polystyrene, when measured by gel permeation chromatography; and a ratio (Mv/Mn′) of a viscosity-average molecular weight (Mv) calculated according to the following formulae, to a number-average molecular weight (Mn′) calculated based on the number of molecular ends, of not more than 1.40:1. &eegr;sp/C=[&eegr;]×(1+0.28&eegr;sp) [&eegr;]=1.23×10−4×(Mv)0.83 wherein &eegr;sp is a specific viscosity of the polycarbonate resin when measured with respect to a methylene chloride solution thereof at 20° C.; and C is a concentration of the methylene chloride solution, in the present case, the methylene chloride solution having a polycarbonate resin concentration of 0.6 g/dl is used. The above polycarbonate resin has a molecular weight distribution close to that of monodisperse system, and generates an extremely less amount of volatile components derived from oligomers, upon heat-molding thereof.

    摘要翻译: 将碳酸酯原料与二羟基化合物反应得到的聚碳酸酯树脂具有:重均分子量(Mw)与数均分子量(Mn)的比(Mw / Mn)为2.2以下的Mw / 1,用聚苯乙烯计算,用凝胶渗透色谱法测定; 和根据下式计算的粘均分子量(Mv)的摩尔比(Mv / Mn')与基于分子末端数计算出的数均分子量(Mn')不大于1.40 :1.其中,相对于其二氯甲烷溶液在20℃下测定时,聚碳酸酯树脂的比粘度。 C是二氯甲烷溶液的浓度,在这种情况下,使用聚碳酸酯树脂浓度为0.6g / dl的二氯甲烷溶液。 上述聚碳酸酯树脂的分子量分布接近于单分散体系,并且在其热成型时,由低聚物产生的挥发成分的量极少。

    Polycarbonate resin with a reduced volatile chlorine content and process
for producing the same
    2.
    发明授权
    Polycarbonate resin with a reduced volatile chlorine content and process for producing the same 失效
    具有降低的挥发性氯含量的聚碳酸酯树脂及其制备方法

    公开(公告)号:US5986037A

    公开(公告)日:1999-11-16

    申请号:US987608

    申请日:1997-12-09

    IPC分类号: C08G64/24 C08G64/00

    CPC分类号: C08G64/24

    摘要: There is provided a polycarbonate resin with a reduced volatile chlorine content in which the amount of a chlorinous matter as volatilized from the resin when the resin is heated at 280.degree. C. for 30 minutes and then allowed to stand at room temperature for 3 days is 30 ppb or lower as calculated in terms of the amount of Cl atom. There is also provided a process for producing a polycarbonate resin using phosgene as a raw material, the improvement comprising using phosgene having a chlorine concentration of up to 1,000 ppb as the raw material thereby to provide the resin with a reduced volatile chlorine content.

    摘要翻译: 提供了一种具有降低的挥发性氯含量的聚碳酸酯树脂,其中当树脂在280℃下加热30分钟然后在室温下放置3天时,从树脂中挥发的氯化物的量为 30ppb以下,以Cl原子的量计算。 还提供了使用光气作为原料制造聚碳酸酯树脂的方法,改进之处在于使用氯浓度高达1,000ppb的光气作为原料,从而为树脂提供降低的挥发性氯含量。

    Random copolymerized polyamide resin and process for preparing the same
    3.
    发明授权
    Random copolymerized polyamide resin and process for preparing the same 失效
    无规共聚聚酰胺树脂及其制备方法

    公开(公告)号:US5723569A

    公开(公告)日:1998-03-03

    申请号:US710256

    申请日:1996-09-13

    IPC分类号: C08G69/08 C08G69/16 C08G69/36

    CPC分类号: C08G69/36

    摘要: A random copolymerized polyamide resin is prepared by reacting a lactam of the formula (I): ##STR1## wherein R.sup.1 is a C.sub.2-11 alkylene group optionally substituted with a substituent having 1 to 6 carbon atoms, with a hexamethylenediamine-adipic acid salt while concentrating the aqueous solution of the salt to a concentration of at least 70% by weight and while maintaining a uniform reaction phase at all times by controlling the pressure over and the temperature of the reaction medium such that the hexamethylenediamine-adipic acid salt does not precipitate, said pressure being up to not greater than 2 kg/cm.sup.2 .multidot.G and said temperature being up to not greater than 150.degree. C., and then mixing in the solution of the lactam of formula (I) thereby effecting copolymerization and forming a polyamide resin having a relative viscosity measured by the sulfuric acid solution method (1% at 25.degree. C.) of 1.5 to 8.0.

    摘要翻译: 无规共聚的聚酰胺树脂通过使式(I)的内酰胺:其中R 1是任选被具有1至6个碳原子的取代基取代的C 2-11亚烷基与六亚甲基二胺 - 己二酸 同时将盐水溶液浓缩至至少70重量%,同时通过控制反应介质的压力和温度始终保持均匀的反应相,使得六亚甲基二胺 - 己二酸盐 所述压力不大于2kg / cm 2×G,所述温度不大于150℃,然后在式(I)的内酰胺溶液中混合,从而进行共聚,形成 通过硫酸溶液法(25℃下1%)测定的相对粘度为1.5〜8.0的聚酰胺树脂。

    POLYCARBONATE RESIN
    4.
    发明申请
    POLYCARBONATE RESIN 审中-公开
    聚碳酸酯树脂

    公开(公告)号:US20110021739A1

    公开(公告)日:2011-01-27

    申请号:US12297711

    申请日:2007-04-18

    IPC分类号: C08G64/04

    CPC分类号: C08G64/06

    摘要: The object of the present invention is to provide a polycarbonate resin having an extremely narrow molecular weight distribution, good flowability when melting, and particularly extremely good flowability when melting that does not depend on shear rate. The present invention relates to a polycarbonate resin, characterized in that a value obtained by dividing difference between a logarithmic value log MV9.12 of a melt viscosity (Pa·s) measured at shear rate of 9.12 sec−1 and a logarithmic value log MV1824 of a melt viscosity (Pa·s) measured at shear rate of 1824 sec−, with a capillary rheometer having a die diameter of 1 mmφ and an effective length of 30 mmL, by a viscosity average molecular weight Mv calculated by the following equations, viscosity difference/molecular weight ratio, is 2.0×10−5 or less. ηsp/C=[η]×(1+0.28ηsp) [η]=1.23×10−4×Mv0.83 (In the above equations, ηsp is a specific viscosity measured at 20° C. with respect to a methylene chloride solution of a polycarbonate resin, C is a polycarbonate resin concentration of the methylene chloride solution, and C=0.6 g/dl).

    摘要翻译: 本发明的目的是提供一种聚碳酸酯树脂,它具有极窄的分子量分布,熔融时流动性好,熔融时的流动性特别好,其不依赖于剪切速率。 聚碳酸酯树脂技术领域本发明涉及一种聚碳酸酯树脂,其特征在于,通过将在9.12秒-1的剪切速率下测定的熔融粘度(Pa·s)的对数值log MV9.12与对数值log MV1824 在剪切速率为1824秒时测量的熔体粘度(Pa·s),毛细管流变仪的模头直径为1mm&phgr; 有效长度为30mmL,通过由下式计算的粘均分子量Mv,粘度差/分子量比为2.0×10-5以下。 &eegr; sp / C = [&eegr]×(1 + 0.28&eegr; sp)[&eegr] = 1.23×10-4×Mv0.83(在上述等式中,&eegr sp是在20°时测量的比粘度 C.对于聚碳酸酯树脂的二氯甲烷溶液,C是二氯甲烷溶液的聚碳酸酯树脂浓度,C = 0.6g / dl)。

    Method for producing polyamide resin from caprolactam
    5.
    发明授权
    Method for producing polyamide resin from caprolactam 失效
    从己内酰胺生产聚酰胺树脂的方法

    公开(公告)号:US5777067A

    公开(公告)日:1998-07-07

    申请号:US739296

    申请日:1996-10-29

    CPC分类号: C08G69/46 C08G69/16

    摘要: Disclosed are a method for producing a polyamide resin which comprises the steps of extracting with water a polyamide resin obtained by polymerizing caprolactam in the presence of water; condensing the extracted aqueous solution containing unreacted caprolactam and its low polymerized materials; and polymerizing the condensate by adding an additional amount of caprolactam, the improvement wherein (a) among the low polymerized materials of caprolactam, a cyclic dimer is supplied to a polymerization reactor after subjecting it to ring-opening reaction to give a chain structure material in an amount of 15% by weight or more based on the total amount of the cyclic dimer, or (a') a condensate obtained by condensing said aqueous solution until reaching a water partial pressure of 10 kg/cm.sup.2 G or more and a temperature of 230.degree. C. or higher is supplied to a polymerization reactor, and then (b) said additional amount of caprolactam is added to the polymerization reactor, and the procedures are repeatedly carried out.

    摘要翻译: 公开了一种聚酰胺树脂的制造方法,其特征在于,包括以下步骤:在水的存在下,通过聚合己内酰胺得到的聚酰胺树脂; 将提取的含有未反应的己内酰胺及其低聚合物的水溶液冷凝; 并通过加入额外量的己内酰胺使缩合物聚合,其中(a)己内酰胺的低聚合物中的环状二聚体经过开环反应后供入聚合反应器,得到链状结构材料 相对于环状二聚体的总量为15重量%以上的量,或(a')通过将所述水溶液冷凝至达到10kg / cm 2 G以上的水分压和230℃以下的水分 向聚合反应器供给等级(℃)以上,然后向聚合反应器中加入(b)所述附加量的己内酰胺,重复进行。

    Jointing structure of vehicle traveling path joints having expansion function and method of mounting elastic member therein
    6.
    发明授权
    Jointing structure of vehicle traveling path joints having expansion function and method of mounting elastic member therein 有权
    具有膨胀功能的车辆行驶路径接头的接合结构和其中安装弹性构件的方法

    公开(公告)号:US08602678B2

    公开(公告)日:2013-12-10

    申请号:US13413931

    申请日:2012-03-07

    IPC分类号: E01C11/02

    CPC分类号: E01D19/06

    摘要: A jointing structure comprising multiple steps provided face to face at the coaxially built traveling path ends with an expansion gap between, multiple elastic members respectively mounted inside the multiple steps, and a joint block mounted on the multiple elastic members across the expansion gap. Multiple supporting blocks and one or more than one intermediate joint block are mounted inside the multiple steps with the joint block between. The multiple supporting blocks, the joint block and the one or more than one intermediate joint block are of concrete. The elastic members are joined together across the expansion gap. The elastic member on one side is fixed to the inside of the step on one side and then subjected to deformation toward the bridge girder axis, and thereafter, the elastic member on the other side is fixed to the inside of the step on the other side.

    摘要翻译: 包括在同轴构造的行进路径上面对面设置的多个台阶的接合结构,分别安装在多个台阶内的多个弹性构件之间的膨胀间隙,以及安装在多个弹性构件上的膨胀间隙的接头块。 多个支撑块和一个或多于一个中间接合块安装在多个台阶内,其间具有接合块。 多个支撑块,接头块和一个或多个中间接头块是具体的。 弹性构件通过膨胀间隙连接在一起。 一侧的弹性部件固定在一侧的台阶的内侧,然后朝向桥梁轴线变形,此后,另一侧的弹性部件固定在台阶的另一侧的内侧 。

    Production method of aromatic polycarbonate
    8.
    发明授权
    Production method of aromatic polycarbonate 有权
    芳香族聚碳酸酯的生产方法

    公开(公告)号:US07754845B2

    公开(公告)日:2010-07-13

    申请号:US12064343

    申请日:2007-05-22

    IPC分类号: C08G64/00 C08G63/02

    CPC分类号: C08G64/307

    摘要: The object of the present invention is to provide a production method of a high molecular weight aromatic polycarbonate containing a reduced amount of a high melting point product, and having less thermal history received and excellent hue by a melt process. The present invention relates to a production method of an aromatic polycarbonate, characterized in that in producing an aromatic polycarbonate using an aromatic dihydroxy compound and a carbonic diester as raw materials and using plural reactors, a molten reactant temperature T1 (° C.) in at least one reactor A and a molten reactant temperature T2 (° C.) in a reactor B subsequent to the reactor A are satisfied with the relationship of T2

    摘要翻译: 本发明的目的是提供一种高分子量芳族聚碳酸酯的制造方法,该方法含有低熔点产物,并且具有较少的热历史记录和通过熔融加工具有优异的色调。 本发明涉及一种芳族聚碳酸酯的制造方法,其特征在于,在使用芳香族二羟基化合物和碳酸二酯作为原料制造使用多个反应器的芳香族聚碳酸酯时,将熔融反应物温度T1(℃) 反应器A之后的反应器B中的至少一个反应器A和熔融反应物温度T2(℃)满足T2

    Aromatic polycarbonate, process for producing the same, polycarbonate composition, and hollow container obtained from the same
    9.
    发明授权
    Aromatic polycarbonate, process for producing the same, polycarbonate composition, and hollow container obtained from the same 有权
    芳族聚碳酸酯,其制备方法,聚碳酸酯组合物和由其制得的中空容器

    公开(公告)号:US07084233B2

    公开(公告)日:2006-08-01

    申请号:US10813042

    申请日:2004-03-31

    IPC分类号: C08G64/00

    摘要: A subject for the invention is to provide a branched aromatic polycarbonate which is excellent in hue and in melt characteristics such as melt strength.The invention provides a branched aromatic polycarbonate having a viscosity-average molecular weight of 16,000 or higher obtained by the transesterification method, characterized in that the ratio of the weight-average molecular weight (Mw) to number-average molecular weight (Mn) as measured by gel permeation chromatography and calculated for standard polystyrene (Mw/Mn) is in the range of from 2.8 to 4.5 and that the proportion of the number of moles of all structural units yielded by a rearrangement reaction in the course of melt polymerization reaction to 1 mol of structural units having the framework of an aromatic dihydroxy compound used as a starting material is higher than 0.3 mol % and not higher than 0.95 mol.

    摘要翻译: 本发明的主题是提供一种色调和熔融特性如熔体强度优异的支链芳族聚碳酸酯。 本发明提供通过酯交换法得到的粘均分子量为16000以上的支链芳香族聚碳酸酯,其特征在于,测定的重均分子量(Mw)与数均分子量(Mn)的比例 通过凝胶渗透色谱法和标准聚苯乙烯(Mw / Mn)的计算值在2.8至4.5的范围内,并且在熔融聚合反应过程中通过重排反应产生的所有结构单元的摩尔数的比例为1 具有用作原料的芳族二羟基化合物的骨架的结构单元的摩尔数高于0.3摩尔%且不高于0.95摩尔。

    Gas transportation method for grain
    10.
    发明授权
    Gas transportation method for grain 失效
    粮食输送方式

    公开(公告)号:US06637983B2

    公开(公告)日:2003-10-28

    申请号:US10043187

    申请日:2002-01-14

    IPC分类号: B65G5300

    CPC分类号: B65G53/66

    摘要: It is an object of the present invention to provide a method for reducing crushing of grain when the grain having Vickers hardness Hv in a range of 11≦Hv≦14 is transported by means of gas. The present invention is a gas transportation method for grain having Vickers hardness Hv in a range of 11≦Hv≦14, and gas transportation is performed under the condition that a velocity V of transportation gas is set at a value in a range of 10 m/s≦V≦20 m/s. Alternatively or additionally, a blending ratio &mgr; expressed as a ratio of a flow amount of the grain (kg/H) to a flow amount of the transportation gas (kg/H) is set at a value in a range of (3 V−30)≦&mgr;≦(3 V−20).

    摘要翻译: 本发明的目的是提供一种当维氏硬度Hv在11 <= Hv <= 14范围内的颗粒通过气体输送时,可以减少颗粒破碎的方法。 本发明是维氏硬度Hv在11 <= Hv <= 14的范围内的颗粒的气体输送方法,并且在输送气体的速度V被设定在 10m / s <= V <= 20m / s。 或者或另外,以谷物流量(kg / H)与输送气体流量(kg / H)的比率表示的混合比例mu设定为(3V- 30)<= mu <=(3 V-20)。