公开(公告)号：US10730964B2

公开(公告)日：2020-08-04

申请号：US15923780

申请日：2018-03-16

Applicant: Dow Global Technologies LLC

Inventor： Lixin Sun ,  Daniel D. VanderLende

IPC: C08F4/52 ,  C07F5/02 ,  C08F10/00

Abstract: A method for preparing ammonium tetrakis(pentafluorophenyl)borate salt comprising reacting a secondary amine with an aldehyde to form an iminium ion; hydrogenating the iminium ion by reaction with a reducing agent to form a tertiary amine; reacting the tertiary amine with a mineral acid to form an amine salt; and reacting the amine salt with K[B(C6F5)4], Li[B(C6F5)4], or combinations thereof to form an ammonium tetrakis(pentafluorophenyl)borate salt, wherein the secondary amine is derived from a non-animal source and the aldehyde has seven or more carbon atoms; wherein the ammonium tetrakis(pentafluorophenyl)borate salt is characterized by a solubility at 25° C. in hexane, cyclohexane or methylcyclohexane of at least 10 weight percent; and wherein the tertiary amine has a molecular weight of at least 450 g/mole is provided.

公开(公告)号：US10450394B2

公开(公告)日：2019-10-22

申请号：US15553356

申请日：2016-03-01

Applicant: Dow Global Technologies LLC

Inventor： Philip P. Fontaine ,  Lixin Sun ,  Colin Li Pi Shan ,  Juan C. Tuberquia ,  Susan G. Brown ,  Edward O. Madenjian ,  Gregory J. Brennan

IPC: C08F4/64 ,  C08F236/20 ,  C08F210/18 ,  C08L23/16 ,  C08F2/01 ,  C08F4/659

Abstract: The invention provides a process to form a polymer composition comprising at least one ethylene/α-olefin/non-conjugated polyene interpolymer, and wherein the polymer composition has at least the following properties: a) a Mw/V0.1 ratio greater than, or equal to, 1.80 (g/mol)/(Pa·s); said process comprising polymerizing one or more mixture(s) comprising ethylene, an α-olefin and a non-conjugated polyene in the presence of a catalyst system comprising a metal-ligand complex of Formula (I), as described herein.

公开(公告)号：US20180265602A1

公开(公告)日：2018-09-20

申请号：US15764534

申请日：2016-09-28

Applicant: Dow Global Technologies LLC

Inventor： Lixin Sun ,  David D. Devore

IPC: C08F2/38 ,  C08F210/16

CPC classification number: C08F2/38 ,  C07F3/06 ,  C08F4/6192 ,  C08F4/64175 ,  C08F4/65908 ,  C08F36/00 ,  C08F210/16 ,  C08F4/64193 ,  C08F4/64044

Abstract: The present disclosure relates to a process for synthesizing multi- or dual-headed compositions having the formula R1MA[R2MA-]NR1 by employing a sterically hindered compound and an organometallic compound in the presence of a transition metal catalyst. The present disclosure further relates to use of the compositions, as well as the process to make the same, in olefin polymerization.

公开(公告)号：US20160053031A1

公开(公告)日：2016-02-25

申请号：US14931258

申请日：2015-11-03

Applicant: Dow Global Technologies LLC

Inventor： Matthew D. Christianson ,  Timothy S. De Vries ,  Robert DJ Froese ,  Matthias S. Ober ,  Jasson T. Patton ,  Duane R. Romer ,  Gordon R. Roof ,  Lixin Sun ,  Endre Szuromi ,  Curt N. Theriault ,  Dean M. Welsh ,  Timothy T. Wenzel ,  Paul H. Moran

IPC: C08F110/06 ,  C07F11/00 ,  C08F110/02

CPC classification number: C08F4/78 ,  C07F11/00 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06 ,  C08F4/69112 ,  C08F210/16 ,  C08F2500/15

Abstract: Provided is a non-cyclopentadienyl-based chromium-ligand complex, preferably a chromium-ligand complex of formula (J): LCr(RA)m(D)k (J), wherein L is a non-Cp monoanionic ligand; Cr (chromium) is in a formal oxidation state of +3 or +2; when Cr formally is Cr+3, either m is 1 and RA is hydrocarbylene (a hydrocarbylene chromium-ligand complex of formula (J)) or m is 2 and each RA independently is hydrocarbyl (a dihydrocarbyl chromium-ligand complex of formula (J)), wherein each hydrocarbyl or hydrocarbylene of RA independently is unsubstituted or substituted by from 1 to 5 RAS; each RAS independently is a neutral aprotic heteroalkyl, neutral aprotic heterocycloalkyl, neutral aprotic heteroaryl, or neutral aprotic aryl; when Cr formally is Cr+2, m is 1 and RA is hydrocarbyl (a hydrocarbyl chromium-ligand complex of formula (J)); k is an integer of 0 or 1; D is absent when k is 0 or D is a neutral ligand when k is 1; wherein the chromium-ligand complex of formula (J) is overall neutral and lacks a cyclopentadienyl-based (Cp-based) moiety. Also provided is a chromium catalyst comprising or prepared from the complex. Also provided is a process of making the catalyst and a process employing the chromium catalyst for polymerizing the olefin monomer, especially a straight chain 1-alkene, to prepare the polyolefin, especially a partially chain-straightened poly(1-alkene) or olefin block copolymer. Further provided is the partially chain-straightened poly(1-alkene) or olefin block copolymer prepared thereby. Also provided is a high throughput workflow.

公开(公告)号：US20150203602A1

公开(公告)日：2015-07-23

申请号：US14416706

申请日：2013-07-31

Applicant: Dow Global Technologies LLC

Inventor： Lixin Sun ,  Daniel D. VanderLende

IPC: C08F4/52 ,  C07F5/02

CPC classification number: C08F4/52 ,  C07F5/027 ,  C08F10/00 ,  C08F4/603 ,  C08F4/6093

Abstract: A method for preparing ammonium tetrakis(pentafluorophenyl)borate salt comprising reacting a secondary amine with an aldehyde to form an iminium ion; hydrogenating the iminium ion by reaction with a reducing agent to form a tertiary amine; reacting the tertiary amine with a mineral acid to form an amine salt; and reacting the amine salt with K[B(C6F5)4], Li[B(C6F5)4], or combinations thereof to form an ammonium tetrakis(pentafluorophenyl)borate salt, wherein the secondary amine is derived from a non-animal source and the aldehyde has seven or more carbon atoms; wherein the ammonium tetrakis(pentafluorophenyl)borate salt is characterized by a solubility at 25° C. in hexane, cyclohexane or methylcyclohexane of at least 10 weight percent; and wherein the tertiary amine has a molecular weight of at least 450 g/mole is provided.

Abstract translation: 一种制备四（五氟苯基）硼酸铵盐的方法，包括使仲胺与醛反应以形成亚铵离子; 通过与还原剂反应来氢化亚铵离子形成叔胺; 使叔胺与无机酸反应形成胺盐; 并使胺盐与K [B（C 6 F 5）4]，Li [B（C 6 F 5）4]或其组合反应形成四（五氟苯基）硼酸铵盐，其中仲胺衍生自非动物来源 醛具有7个以上的碳原子; 其中四（五氟苯基）硼酸铵盐的特征在于在25℃下在己烷，环己烷或甲基环己烷中的溶解度至少为10重量％ 并且其中提供叔胺的分子量至少为450g / mol。