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    METHOD FOR EMPLOYING SEC-FTIR DATA TO PREDICT MECHANICAL PROPERTIES OF POLYETHYLENE
    15.
    发明申请
    METHOD FOR EMPLOYING SEC-FTIR DATA TO PREDICT MECHANICAL PROPERTIES OF POLYETHYLENE 有权
    使用SEC-FTIR数据预测聚乙烯的机械性能的方法

    公开(公告)号：US20100319440A1

    公开(公告)日：2010-12-23

    申请号：US12868552

    申请日：2010-08-25

    申请人： Paul J. DesLauriers ,  David C. Rohlfing

    发明人： Paul J. DesLauriers ,  David C. Rohlfing

    IPC分类号： G01N9/00

    CPC分类号： C08F10/00 ,  C08F2400/02 ,  C08L23/04 ,  G01N21/3563 ,  G01N30/02 ,  G01N33/442 ,  G01N2021/3595 ,  Y10T436/25 ,  C08F2/00 ,  C08L2666/04 ,  B01D15/34

    摘要： The present invention provides several methods of determining values of physical or chemical properties of polymers. In these methods, at least two polymer training samples are provided. Characteristics of the polymer microstructures of the training samples are correlated with values of physical or chemical properties of the training samples. These correlations are subsequently applied to the respective characteristics of polymer test samples in order to determine the values of physical or chemical properties of the test samples.

    摘要翻译： 本发明提供了确定聚合物的物理或化学性质的几种方法。 在这些方法中，提供至少两种聚合物训练样品。 训练样本的聚合物微观结构的特征与训练样本的物理或化学性质的值相关。 随后将这些相关性应用于聚合物测试样品的相应特征，以确定测试样品的物理或化学性质的值。

    Measurement of short chain branching in olefin copolymers using chemometric analysis
    17.
    发明授权
    Measurement of short chain branching in olefin copolymers using chemometric analysis 有权
    使用化学计量分析测量烯烃共聚物中的短链支化

    公开(公告)号：US07056744B2

    公开(公告)日：2006-06-06

    申请号：US10463849

    申请日：2003-06-16

    申请人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    发明人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    IPC分类号： G01N33/44 ,  G01N21/00

    CPC分类号： G01N21/359 ,  G01N21/3577 ,  G01N2021/3595 ,  Y10T436/21

    摘要： A method of determining the proportion of short-chain branching in an olefin copolymer process stream is disclosed. The short-chain branching may also be determined as a function of molecular weight in a sample having a range of molecular weights. In the method, at least two olefin copolymer training samples are provided. The respective samples have different, known proportions of short-chain branching. The infrared (e.g. FT-IR) absorbance spectra of the training samples in a wavenumber range are obtained. Calibration information is determined from the training samples by chemometrically correlating the differences in the infrared absorbance spectra of the training samples to the differences in the degree of short-chain branching in the training samples. This step generates calibration information that allows the degree of short-chain branching in a sample to be determined once its infrared absorbance spectrum is obtained. A method for determining the statistical error in the measurement of short-chain branching in an olefin polymer sample as a function of its molecular weight distribution is also disclosed.

    摘要翻译： 公开了一种确定烯烃共聚物工艺流中短链支化比例的方法。 短链支化也可以在具有分子量范围的样品中作为分子量的函数来确定。 在该方法中，提供至少两种烯烃共聚物训练样品。 各样品具有不同的已知比例的短链支化。 获得波数范围内训练样本的红外（例如FT-IR）吸收光谱。 通过化学方法将训练样本的红外吸收光谱的差异与训练样本中短链分支程度的差异化学相关，从训练样本中确定校准信息。 该步骤产生校准信息，其允许在获得样品的红链吸收光谱后测定样品中的短链支化度。 还公开了用于确定烯烃聚合物样品中短链支化的测量中的统计误差作为其分子量分布的函数的方法。

    Measurement of short chain branching in olefin copolymers using chemometric analysis
    18.
    发明授权
    Measurement of short chain branching in olefin copolymers using chemometric analysis 有权
    使用化学计量分析测量烯烃共聚物中的短链支化

    公开(公告)号：US06632680B1

    公开(公告)日：2003-10-14

    申请号：US09667657

    申请日：2000-09-22

    申请人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    发明人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    IPC分类号： G01N3344

    CPC分类号： G01N21/359 ,  G01N21/3577 ,  G01N2021/3595 ,  Y10T436/21

    摘要： A method of determining the proportion of short-chain branching in an olefin copolymer process stream is disclosed. The short-chain branching may also be determined as a function of molecular weight in a sample having a range of molecular weights. In the method, at least two olefin copolymer training samples are provided. The respective samples have different, known proportions of short-chain branching. The infrared (e.g. FT-IR) absorbance spectra of the training samples in a wavenumber range are obtained. Calibration information is determined from the training samples by chemometrically correlating the differences in the infrared absorbance spectra of the training samples to the differences in the degree of short-chain branching in the training samples. This step generates calibration information that allows the degree of short-chain branching in a sample to be determined once its infrared absorbance spectrum is obtained. A method for determining the statistical error in the measurement of short-chain branching in an olefin polymer sample as a function of its molecular weight distribution is also disclosed.

    摘要翻译： 公开了一种确定烯烃共聚物工艺流中短链支化比例的方法。 短链支化也可以在具有分子量范围的样品中作为分子量的函数来确定。 在该方法中，提供至少两种烯烃共聚物训练样品。 各样品具有不同的已知比例的短链支化。 获得波数范围内训练样本的红外（例如FT-IR）吸收光谱。 通过化学方法将训练样本的红外吸收光谱的差异与训练样本中短链分支程度的差异化学相关，从训练样本中确定校准信息。 该步骤产生校准信息，其允许在获得样品的红链吸收光谱后测定样品中的短链支化度。 还公开了用于确定烯烃聚合物样品中短链支化测量中的统计误差作为其分子量分布函数的方法。

    Ultra high molecular weight polyethylene fractions having narrow molecular weight distributions and methods of making and using the same
    19.
    发明授权
    Ultra high molecular weight polyethylene fractions having narrow molecular weight distributions and methods of making and using the same 有权
    具有窄分子量分布的超高分子量聚乙烯级分及其制备和使用方法

    公开(公告)号：US07241620B2

    公开(公告)日：2007-07-10

    申请号：US10754373

    申请日：2004-01-09

    申请人： Chung C. Tso ,  Melvin Hildebrand ,  Paul J. DesLauriers ,  Youlu Yu

    发明人： Chung C. Tso ,  Melvin Hildebrand ,  Paul J. DesLauriers ,  Youlu Yu

    IPC分类号： G01N30/02 ,  C08F6/12

    CPC分类号： C08F6/04 ,  C08F110/02 ,  Y10T436/10 ,  C08L23/04 ,  C08F2500/01 ,  C08F2500/03

    摘要： Polymer fractions such as polyethylene fractions can be produced that have a PDI less than about 2.3 and a Mw greater than about 1,000,000 g/mol, 3,000,000 g/mol, or 6,000,000 g/mol. Such polyethylene fractions are separated from a UHMWPE parent polymer by first dissolving the parent polymer in a relatively good solvent. The conditions employed for such dissolution are selected to reduce the degradation of the parent polymer. The resulting parent solution is transported into a fractionation column in which a support is disposed. The fractionation column is thereafter operated at conditions effective to form a precipitate on the support comprising the desired polyethylene fraction. The polyethylene fraction may then be recovered from the fractionation column by repeatedly displacing a solvent/non-solvent mixture into the column to dissolve the polyethylene fraction. The relative concentrations of the solvent and the non-solvent are based on a solvent gradient profile of the polyethylene parent polymer.

    摘要翻译： 可以制备聚合物级分例如聚乙烯级分，其具有小于约2.3的PDI和大于约1,000,000g / mol，3,000,000g / mol或6,000,000g / mol的M max。 通过首先将母体聚合物溶解在相对良好的溶剂中，将这样的聚乙烯部分与UHMWPE母体聚合物分离。 选择用于这种溶解的条件以降低母体聚合物的降解。 将所得的母体溶液输送到其中设置有支持物的分馏塔。 然后分馏塔在有效地在包含所需聚乙烯部分的载体上形成沉淀物的条件下操作。 然后可以通过将溶剂/非溶剂混合物重复置换到柱中以溶解聚乙烯部分，从分馏塔中回收聚乙烯部分。 溶剂和非溶剂的相对浓度基于聚乙烯母体聚合物的溶剂梯度分布。

    Process for sulfur containing derivatives of hydroxyphenyl/benzotriazoles
    20.
    发明授权
    Process for sulfur containing derivatives of hydroxyphenyl/benzotriazoles 失效
    羟基苯基/苯并三唑的含硫衍生物的方法

    公开(公告)号：US5319091A

    公开(公告)日：1994-06-07

    申请号：US981024

    申请日：1992-11-24

    申请人： Paul J. DesLauriers ,  Paritsoh K. Das ,  Darryl R. Fahey ,  Frederick J. Cornforth

    发明人： Paul J. DesLauriers ,  Paritsoh K. Das ,  Darryl R. Fahey ,  Frederick J. Cornforth

    IPC分类号： C07D249/20 ,  C08G75/02 ,  C08G85/00 ,  C08K5/378

    CPC分类号： C08K5/378 ,  C07D249/20 ,  C08G75/0204 ,  C08G85/00

    摘要： A composition that, when present in a polymer matrix, reduces the deleterious effect of UV light absorption by the polymer is provided, which comprises a sulfur-containing derivative of hydroxyphenylbenzotriazole having the formula of: ##STR1## wherein each X is selected from the group consisting of hydrogen, halogens, cyano, alkyl, phenyl group, biphenyl group, arylthio, amine, ketone, aldehyde, alkoxy, hydroxy, carboxylic acid group, oligomer and combinations thereof and can have carbon atoms up to about 20; n is a whole number from 1 to 5; n' is a whole number from 0 to 4; n" is a whole number from 1 to 2 and each n" can be the same or different; q is an integer from 1 to 10; each Y is selected from the group consisting of --S(O) (O)--, --S(O)--, and --S--; each R can be selected from the group consisting of hydrogen, alkyl group, alkenyl group, aralkyl group, alkaryl group, and combinations thereof and can have 0 to about 10 carbon atoms; each OH group can be at either the 2'- or the 6'-position, or both. Also provided are a composition comprising the sulfur-containing derivative, a process for preparing the derivative, a composition comprising a polymer chemically bonded to the derivative, and a process for preparing the composition which comprises a polymer chemically bonded to the derivative.

    摘要翻译： 当存在于聚合物基质中时，提供降低由聚合物引起的UV光吸收的有害影响的组合物，其包含具有下式的羟基苯基苯并三唑的含硫衍生物：其中每个X选自 由氢，卤素，氰基，烷基，苯基，联苯基，芳硫基，胺，酮，醛，烷氧基，羟基，羧酸基，低聚物及其组合组成，可以具有高达约20的碳原子; n为1〜5的整数; n'是从0到4的整数; n“是从1到2的整数，并且每个n”可以相同或不同; q是1至10的整数; 每个Y选自-S（O）（O） - ， - S（O） - 和-S-; 每个R可以选自氢，烷基，烯基，芳烷基，烷芳基及其组合，并且可以具有0至约10个碳原子; 每个OH基团可以在2'-或6'-位，或两者。 还提供了包含含硫衍生物的组合物，制备衍生物的方法，包含与衍生物化学键合的聚合物的组合物，以及包含与衍生物化学键合的聚合物的组合物的方法。