公开(公告)号：US10100183B2

公开(公告)日：2018-10-16

申请号：US14437868

申请日：2013-11-25

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jeanne M. MacDonald ,  Antonios Doufas ,  Jerome Sarrazin ,  William M. Ferry ,  Charles J. Ruff ,  Rahul R. Kulkarni ,  Derek W. Thurman ,  Cynthia A. Mitchell

IPC: C08L23/12 ,  C08J5/18 ,  D01F6/06

Abstract: This invention relates in one aspect to propylene polymers comprising propylene, said polymers having a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) of 10 dg/min to 25 dg/min; a Dimensionless Stress Ratio/Loss Tangent Index R2 at 190° C. from 1.5 to 28; an average meso run length determined by 13C NMR of at least 70 or higher; and an MFR MFR Ratio of at least 1.0 and optionally, a Loss Tangent, tan δ, at an angular frequency of 0.1 rad/s at 190° C. from 14 to 100. The inventive propylene polymer compositions are useful in in molded articles and non-woven fibers and fabrics.

公开(公告)号：US09382411B2

公开(公告)日：2016-07-05

申请号：US14648524

申请日：2013-11-25

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jeanne M. MacDonald ,  Antonios Doufas ,  Jerome Sarrazin ,  William Michael Farry ,  Charles J. Ruff ,  Rahul Ravindra Kulkami ,  Derek Wade Thurman ,  Cynthia A. Mitchell

IPC: C08L23/12 ,  C08J5/18 ,  D01F6/06

CPC classification number: C08L23/12 ,  C08J5/18 ,  C08J2323/08 ,  C08J2323/12 ,  C08J2423/14 ,  C08L2205/025 ,  D01F6/06 ,  Y10T428/31938 ,  C08F110/06 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/20 ,  C08F2500/03 ,  C08F210/06 ,  C08F210/16

Abstract: This invention relates to propylene polymers comprising at least 50 mol % propylene, said polymers having: a) a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) of 10 dg/min to 25 dg/min; b) a Dimensionless Stress Ratio/Loss Tangent Index R2 at 190° C. from 1.5 to 28; c) an onset temperature of crystallization under flow, Tc,rheol (as determined by SAOS rheology, 190° C., 1° C./min, where said polymer has 0 wt % nucleating agent present), of at least 131° C.; d) an average meso run length determined by 13C NMR of at least 90 or higher; and e) optionally, a loss tangent, tan δ, (defined by Eq. (2)) at an angular frequency of 0.1 rad/s at 190° C. from 14 to 70.

Abstract translation: 本发明涉及包含至少50mol％丙烯的丙烯聚合物，所述聚合物具有：a）10dg / min至25dg / min的熔体流动速率（MFR，ASTM 1238,230℃，2.16kg）; b）在190℃从1.5至28的无尺寸应力比/损耗切线指数R2; c）流动下的结晶起始温度Tc，流变性（通过SAOS流变学测定，190℃，1℃/分钟，其中所述聚合物存在0重量％成核剂），至少131℃ 。 d）由13 C NMR确定的平均中观游程长度至少为90或更高; 和e）任选地，在190℃，从14至70的角度频率为0.1rad / s的损耗角正切tanδ（由式（2）定义）。

公开(公告)号：US09771444B2

公开(公告)日：2017-09-26

申请号：US15295154

申请日：2016-10-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Danny Van Hoyweghen ,  Cynthia A. Mitchell ,  Achiel J. M. Van Loon ,  Narayanaswami Dharmarajan ,  Sudhin Datta

IPC: C08F210/06 ,  C08F210/02 ,  C08J5/18 ,  C08F210/16 ,  C08F110/02 ,  C08F10/02 ,  B32B27/32 ,  C08F2/06

CPC classification number: C08F210/02 ,  B32B1/02 ,  B32B27/08 ,  B32B27/24 ,  B32B27/32 ,  B32B27/327 ,  B32B2250/242 ,  B32B2307/40 ,  B32B2307/558 ,  B32B2307/5825 ,  B32B2307/732 ,  B32B2323/04 ,  B32B2439/00 ,  B32B2553/00 ,  C08F2/06 ,  C08F4/65908 ,  C08F10/02 ,  C08F110/02 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/26 ,  C08J5/18 ,  C08J2323/08 ,  C08F4/65927 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/09

Abstract: Provided herein is a polymer comprising greater than or equal to about 70 wt % units derived from ethylene, less than or equal to about 30 wt % units derived from propylene, and less than about 5 wt % of units derived from C4-C20 alpha-olefins, and having the following properties: crystallinity derived from ethylene; a heat of fusion of about 20 to about 85 J/g; a polydispersity index (Mw/Mn) of less than about 2.5; a reactivity ratio of about 0.5 to about 1.5; a proportion of inversely inserted propylene units based on 2, 1 insertion of propylene monomer in all propylene insertions, as measured by 13C NMR of less than 0.5 wt %; and a branching index greater than about 0.5

公开(公告)号：US20170174799A1

公开(公告)日：2017-06-22

申请号：US15295154

申请日：2016-10-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Danny Van Hoyweghen ,  Cynthia A. Mitchell ,  Achiel J.M. Van Loon ,  Narayanaswami Dharmarajan ,  Sudhin Datta

IPC: C08F210/02 ,  C08J5/18

CPC classification number: C08F210/02 ,  B32B1/02 ,  B32B27/08 ,  B32B27/24 ,  B32B27/32 ,  B32B27/327 ,  B32B2250/242 ,  B32B2307/40 ,  B32B2307/558 ,  B32B2307/5825 ,  B32B2307/732 ,  B32B2323/04 ,  B32B2439/00 ,  B32B2553/00 ,  C08F2/06 ,  C08F4/65908 ,  C08F10/02 ,  C08F110/02 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/26 ,  C08J5/18 ,  C08J2323/08 ,  C08F4/65927 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/09

Abstract: Provided herein is a polymer comprising greater than or equal to about 70 wt % units derived from ethylene, less than or equal to about 30 wt % units derived from propylene, and less than about 5 wt % of units derived from C4-C20 alpha-olefins, and having the following properties: crystallinity derived from ethylene; a heat of fusion of about 20 to about 85 J/g; a polydispersity index (Mw/Mn) of less than about 2.5; a reactivity ratio of about 0.5 to about 1.5; a proportion of inversely inserted propylene units based on 2, 1 insertion of propylene monomer in all propylene insertions, as measured by 13C NMR of less than 0.5 wt %; and a branching index greater than about 0.5

公开(公告)号：US11492477B2

公开(公告)日：2022-11-08

申请号：US14781464

申请日：2014-05-01

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Cynthia A. Mitchell ,  Galen C. Richeson ,  Narayanaswami Dharmarajan

IPC: C08L23/14 ,  D04H1/4291 ,  D04H1/724

Abstract: Described herein are propylene-based polymer compositions that comprise a reactor blend of a first polymer component and a second polymer component. The first polymer component has an ethylene content of from greater than 12 to less than 19 wt % ethylene, and the second polymer component has an ethylene content of from greater than 4 to less than 10 wt % ethylene. Preferably, the ethylene content of the first and second polymer components satisfy the formula: −1.7143R1+29.771≤R2≤−1.9167R1+37.25. The propylene-based polymer compositions are particularly useful for forming meltspun nonwoven compositions that exhibit a desirable balance of retractive force and permanent set.

公开(公告)号：US20170283600A1

公开(公告)日：2017-10-05

申请号：US15435542

申请日：2017-02-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Danny Van Hoyweghen ,  Cynthia A. Mitchell ,  Achiel J. M. Van Loon ,  Narayanaswami Dharmarajan ,  Sudhin Datta

IPC: C08L23/08 ,  B32B27/08 ,  B32B27/32 ,  C08J5/18

CPC classification number: B32B27/327 ,  B32B27/08 ,  B32B27/20 ,  B32B27/22 ,  B32B2250/05 ,  B32B2250/242 ,  B32B2272/00 ,  B32B2307/31 ,  B32B2307/50 ,  B32B2439/70 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/14 ,  C08L23/16 ,  C08L2203/162 ,  C08L2205/02 ,  C08L23/142

Abstract: Provided herein is a polymer comprising from about 65 wt % to about 90 wt % based on the total weight of the blend of an ethylene α-olefin elastomer having either no crystallinity or crystallinity derived from ethylene, having greater than about 75 wt % units derived from ethylene; and from about 10 wt % to about 35 wt % based on the total weight of the blend of a propylene polymer having about 40 wt % or more units derived from propylene, including isotactically arranged propylene derived sequences; wherein the ethylene α-olefin elastomer and the propylene polymer are prepared in separate reactors arranged in parallel configuration.

公开(公告)号：US20150274907A1

公开(公告)日：2015-10-01

申请号：US14437868

申请日：2013-11-25

Applicant: EXXONMOBIL CHEMICAL PATENTS INC.

Inventor： Jeanne M. MacDonald ,  Antonios Doufas ,  Jerome Sarrazin ,  William M. Ferry ,  Charles J. Ruff ,  Rahul R. Kulkarni ,  Derek W. Thurman ,  Cynthia A. Mitchell

IPC: C08J5/18

CPC classification number: C08L23/12 ,  C08J5/18 ,  C08J2323/08 ,  C08J2323/12 ,  C08J2423/14 ,  C08L2205/025 ,  D01F6/06 ,  Y10T428/31938 ,  C08F110/06 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/20 ,  C08F2500/03 ,  C08F210/06 ,  C08F210/16

Abstract: This invention relates in one aspect to propylene polymers comprising propylene, said polymers having a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) of 10 dg/min to 25 dg/min; a Dimensionless Stress Ratio/Loss Tangent Index R2 at 190° C. from 1.5 to 28; an average meso run length determined by 13C NMR of at least 70 or higher; and an MFR MFR Ratio of at least 1.0 and optionally, a Loss Tangent, tan δ, at an angular frequency of 0.1 rad/s at 190° C. from 14 to 100. The inventive propylene polymer compositions are useful in in molded articles and non-woven fibers and fabrics.

Abstract translation: 本发明在一个方面涉及包含丙烯的丙烯聚合物，所述聚合物的熔体流动速率（MFR，ASTM 1238,230℃，2.16kg）为10dg / min至25dg / min; 1.5°至28°190°C的无尺寸应力比/损耗切线指数R2; 由13 C NMR确定的平均中观游程长度至少为70或更高; MFR为190，MFR为190时，MFR为190以下，MFR为190以下，MFR为190以下，MFR为10以下，可选择为损耗角正切tanδ。本发明的丙烯类聚合物组合物可用于成形品， 无纺布纤维和织物。