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公开(公告)号：US20210017304A1
公开(公告)日：2021-01-21
申请号：US17040322
申请日：2019-03-29
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul Tu Quang Nguyen , David J. Freas , Tu N. Pham , Yuan-Ju Chen , Edward J. Blok , Anthony J. Dias
Abstract: Methods of post-polymerization modification of a polymer are provided herein. The present methods comprise the step of reacting a polymer with at least one nucleophile in a nucleophilic substitution reaction performed without a solvent to produce a functionalized polymer. The nucleophile can be selected from the group consisting of thioacetate, phenoxide, alkoxide, carboxylate, thiolate, thiocarboxylate, dithiocarboxylate, thiourea, thiocarbamate, dithiocarbamate, xanthate, thiocyanate. Nucleophilic substitution reaction can be performed in the presence of a phase transfer catalyst. Nucleophilic substitution reaction can also be performed via a two-step in-situ reactive mixing process with the initial formation of the polymer-amine ionomer (polymer-NR3+Br) which catalyzes the subsequent nucleophilic substitution with a second nucleophile to form a bi-functional polymer.
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公开(公告)号：US20170009053A1
公开(公告)日：2017-01-12
申请号：US15114312
申请日：2014-12-15
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： Yuan-Ju Chen , John P. Soisson , Luke P. Stephens , Michael B. Rodgers , Marvin C. Hill
CPC classification number: C08K5/09 , B82Y30/00 , C08K3/346 , C08K9/04 , C08K2201/011 , C08L9/00 , C08L2207/04 , C08L23/22 , C08L23/283
Abstract: This invention relates to an elastomeric nanocomposite composition, the composition comprising at least one elastomer, at least one nanofiller, and an ionomer stabilizer in the amount of at least about 0.5 phr of the composition, the elastomer comprising units derived from isoolefins having from 4 to 7 carbon atoms and at least one multiolefin, and the nanofiller consisting of a layered filler, wherein the stabilizer is added to improve the stability of the Mooney viscosity of the composition over time.
Abstract translation: 本发明涉及一种弹性体纳米复合材料组合物，该组合物包含至少一种弹性体，至少一种纳米填料和至少约0.5phr组合物量的离聚物稳定剂，弹性体包含衍生自具有4至 7个碳原子和至少一个多烯烃，以及由分层填料组成的纳米填料，其中加入稳定剂以提高组合物随时间的门尼粘度的稳定性。
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公开(公告)号：US12252563B2
公开(公告)日：2025-03-18
申请号：US17054953
申请日：2019-05-02
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sunny Jacob , Sujith Nair , Yuan-Ju Chen
IPC: C08F212/14 , B60C1/00 , C08F210/10 , C08K3/04 , C08K3/34
Abstract: An elastomer composition can comprise a C4 to C7 isoolefin; a non-halogenated alkylstyrene; a halogenated alkylstyrene; and optionally a diolefin, wherein the C4 to C7 isoolefin is not the same as the diolefin. Optionally, the elastomer composition can be blended with a butyl rubber and/or a halobutyl rubber. Such blends that also comprise additives may be suitable for producing tire components such as innerliners.
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公开(公告)号：US20210246242A1
公开(公告)日：2021-08-12
申请号：US17054953
申请日：2019-05-02
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sunny Jacob , Sujith Nair , Yuan-Ju Chen
IPC: C08F212/14 , B60C1/00 , C08F210/10
Abstract: An elastomer composition can comprise a C4 to C7 isoolefin; a non-halogenated alkylstyrene; a halogenated alkylstyrene; and optionally a diolefin, wherein the C4 to C7 isoolefin is not the same as the diolefin. Optionally, the elastomer composition can be blended with a butyl rubber and/or a halobutyl rubber. Such blends that also comprise additives may be suitable for producing tire components such as innerliners.
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公开(公告)号：US10982081B2
公开(公告)日：2021-04-20
申请号：US16634389
申请日：2018-05-31
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sujith Nair , Ranjan Tripathy , Sunny Jacob , Yuan-Ju Chen
IPC: C08L23/22 , B60C1/00 , C08F212/08 , C08F232/04 , C08F236/04 , C08L23/28
Abstract: Butyl based composition having hydrocarbon resins are provided herein. The hydrocarbon resin has a Tg from −10° C. to 25° C., a number average molecular weight between 20 to 500, a weight average molecular weight between about 100 to about 2000, and a glass transition temperature between about 0° C. to about −80° C.
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Patent Agency Ranking
公开(公告)号：US20240010761A1
公开(公告)日：2024-01-11
申请号：US18035020
申请日：2021-10-05
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jose M. Vargas , Keith C. Gallow , Thomas R. Barbee , Alison M. Miller , Yuan-Ju Chen
IPC: C08F8/04 , B01J27/049
CPC classification number: C08F8/04 , B01J27/049
Abstract: Methods for resin hydrogenation and decoloration may comprise reacting a resin mixture with a sulfided bimetallic catalyst and excess hydrogen under conditions effective to form a hydrogenated resin mixture, the resin mixture comprising an oligomerized reaction product of at least one polymerizable monomer containing an olefinic unsaturation and a solvent; providing the hydrogenated resin mixture directly to a noble metal catalyst; and reacting the hydrogenated resin mixture in the presence of the noble metal catalyst under conditions effective to form a decolorized resin mixture. Decolorized resin compositions comprising a decolorized resin mixture formed in accordance with the foregoing may have a yellowness index of about 10 or below, as measured by ASTM E313.
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公开(公告)号：US11649303B2
公开(公告)日：2023-05-16
申请号：US17040322
申请日：2019-03-29
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul Tu Quang Nguyen , David J. Freas , Tu N. Pham , Yuan-Ju Chen , Edward J. Blok , Anthony J. Dias
CPC classification number: C08F8/34 , C08F8/32 , C08F2810/50 , C08F210/10 , C08F212/21 , C08F212/12
Abstract: Methods of post-polymerization modification of a polymer are provided herein. The present methods comprise the step of reacting a polymer with at least one nucleophile in a nucleophilic substitution reaction performed without a solvent to produce a functionalized polymer. The nucleophile can be selected from the group consisting of thioacetate, phenoxide, alkoxide, carboxylate, thiolate, thiocarboxylate, dithiocarboxylate, thiourea, thiocarbamate, dithiocarbamate, xanthate, thiocyanate. Nucleophilic substitution reaction can be performed in the presence of a phase transfer catalyst. Nucleophilic substitution reaction can also be performed via a two-step in-situ reactive mixing process with the initial formation of the polymer-amine ionomer (polymer-NR3+Br) which catalyzes the subsequent nucleophilic substitution with a second nucleophile to form a bi-functional polymer.
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公开(公告)号：US20210024734A1
公开(公告)日：2021-01-28
申请号：US17040845
申请日：2019-03-29
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul Tu Quang Nguyen , Ranjan Tripathy , Jason A. Mann , Yuan-Ju Chen , Edward J. Blok , Anthony J. Dias , Abdul M. Jangda
IPC: C08L23/22 , C08K5/44 , C08K5/435 , C08K5/40 , C08K5/31 , C08K5/00 , C08K3/06 , C08F8/44 , C08F8/40 , C08F8/32
Abstract: Provided herein are isobutylene-based polymer compositions comprising functionalized isobutylene-based polymer with olefinic side chain substituents, and a sulfur donor and/or accelerator cure system. The functionalized polymer is produced via nucleophilic substitution reaction in solution. The present functionalized isobutylene-based polymer compositions together with various accelerators and sulfur donors can form thermosets useful for pharmaceutical and tire applications without the use of zinc or a zinc oxide activator.
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公开(公告)号：US20200347209A1
公开(公告)日：2020-11-05
申请号：US16955439
申请日：2018-09-14
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Andrew Takacs , Declan Noel Whelan , Antonios K. Doufas , Deborah Jean Davis , Robert Leslie Chidlow , Wanli Wang , Krishnan Anantha Narayana Iyer , Krassimir Iordanov Doynov , Xin Chen , Yuan-Ju Chen
IPC: C08L15/02 , C08L23/12 , F16L11/08 , F16L59/153
Abstract: A conduit, particularly flexible conduit comprises an inner tubular housing, at least one reinforcing layer at least partially disposed around the inner housing, an outer protective sheath at least partially disposed around the at least one reinforcing layer, and optionally a thermally insulating layer disposed between the at least one reinforcing layer and the outer protective sheath. At least one of the outer protective sheath and the thermally insulating layer comprises a thermoplastic vulcanizate composition.
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公开(公告)号：US20190144654A1
公开(公告)日：2019-05-16
申请号：US16145920
申请日：2018-09-28
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sujith Nair , Sunny Jacob , Yuan-Ju Chen
Abstract: Curative systems for butyl based compositions are provided herein. The present curative systems provide consistent curing speeds for butyl based compositions, low moduli at low strain, higher elongation and higher percent retention in elongation at heat aging conditions. The curative systems have about 0.5 phr to about 3 phr metal oxide, about 0.3 phr to about 3 phr fatty acid, at least to about 2 phr sulfur, and at least about 2 phr of cure accelerator.
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