公开(公告)号：US12030975B2

公开(公告)日：2024-07-09

申请号：US17832932

申请日：2022-06-06

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan

IPC: C08F4/76 ,  C08F4/02 ,  C08F4/78

CPC classification number: C08F4/76 ,  C08F4/02 ,  C08F4/78

Abstract: A pre-catalyst composition comprising: a) a silica support comprising silica wherein an amount of silica is in a range of from about 70 wt. % to about 95 wt. % based upon a total weight of the silica support; b) a titanium-containing compound wherein an amount of titanium is in a range of from about 0.1 wt. % to about 10 wt. % based upon the total weight of the silica support; c) a chromium-containing compound wherein an amount of chromium is in a range of from about 0.1 wt. % to about 10 wt. % based upon the total weight of the silica support; d) a surfactant wherein the surfactant comprises a non-ionic surfactant, a cationic surfactant, or a combination thereof; e) a carboxylate wherein the carboxylate comprises a multi carboxylate, an alpha-hydroxy carboxylate, or a combination thereof; and f) a solvent.

公开(公告)号：US20230183400A1

公开(公告)日：2023-06-15

申请号：US18165969

申请日：2023-02-08

Applicant: Chevron Phillips Chemical Company LP

Inventor： William C. Ellis ,  Max P. McDaniel ,  Deloris R. Gagan

IPC: C08F210/02

CPC classification number: C08F210/02

Abstract: Techniques are provided for catalyst preparation. A method includes heating a mixture of one or more transition metal compounds and an oxide support or a chromium containing oxide support to a temperature or a set of temperatures that enables the a transition metal compound of the one or more transition metal compounds to sublime, melt, or thermally decompose, such that a transition metal of the one or more transition metal compounds reacts with and is deposited onto a surface of the oxide support or the chromium containing oxide support to form a catalyst, and activating the catalyst. The catalyst is configured to facilitate a reaction that produces a target inorganic material.

公开(公告)号：US20180258205A1

公开(公告)日：2018-09-13

申请号：US15973610

申请日：2018-05-08

Applicant: Chevron Phillips Chemical Company LP

Inventor： Mark L. Hlavinka ,  Chung Ching Tso ,  Yongwoo Inn ,  Deloris R. Gagan ,  Randy S. Muninger

IPC: C08F210/16 ,  C08J9/228 ,  C08F4/659

Abstract: Disclosed herein are ethylene-based polymers generally characterized by a Mw ranging from 70,000 to 200,000 g/mol, a ratio of Mz/Mw ranging from 1.8 to 20, an 1B parameter ranging from 0.92 to 1.05, and an ATREF profile characterized by one large peak. These polymers have the dart impact, tear strength, and optical properties of a metallocene-catalyzed LLDPE, but with improved processability, melt strength, and bubble stability, and can be used in blown film and other end-use applications.

公开(公告)号：US12202914B2

公开(公告)日：2025-01-21

申请号：US17480025

申请日：2021-09-20

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan ,  Ted H. Cymbaluk

IPC: C08F4/02 ,  C08F4/24 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16

Abstract: Processes for activating chromium polymerization catalysts, which can use lower maximum activation temperatures and shorter activation times than conventional activation methods, and provide polyethylenes with high melt indices, broader molecular weight distributions, and lower long chain branching content. The activation process can comprise heating a supported chromium catalyst in an inert atmosphere to a first temperature (T1) for a first hold time (tH1), followed by allowing the chromium catalyst to attain a second temperature (T2) in the inert atmosphere, then contacting the chromium catalyst with an oxidative atmosphere for a second hold time (tH2), in which T2 can be less than or equal to T1. Additional activation treatments and conditioning steps are disclosed which can be used to enhance the melt index potential of Phillips (Cr/silica) catalysts.

公开(公告)号：US11267908B2

公开(公告)日：2022-03-08

申请号：US16861486

申请日：2020-04-29

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan

IPC: C08F4/76 ,  C08F4/02 ,  C08F4/78

Abstract: A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a solvent; a ligand comprising a glycol, a carboxylate, a peroxide, or a combination thereof; and a titanium compound having the formula Ti(acac)2(OR)2, wherein “acac” is acetylacetonate and wherein each R independently is ethyl, isopropyl, n-propyl, isobutyl, or n-butyl.

公开(公告)号：US10889664B2

公开(公告)日：2021-01-12

申请号：US16439078

申请日：2019-06-12

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan

IPC: C08F4/22 ,  C08F4/76 ,  C08F4/02 ,  C08F4/78

Abstract: A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a titanium compound, a solvent, and a surfactant.

公开(公告)号：US20180127526A1

公开(公告)日：2018-05-10

申请号：US15345586

申请日：2016-11-08

Applicant: Chevron Phillips Chemical Company LP

Inventor： Mark L. Hlavinka ,  Chung Ching Tso ,  Yongwoo Inn ,  Deloris R. Gagan ,  Randy S. Muninger

IPC: C08F210/16 ,  C08J9/228

CPC classification number: C08F210/16 ,  C08F4/65904 ,  C08F2500/02 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/26 ,  C08J9/228 ,  C08J2201/03 ,  C08J2323/08 ,  C08F210/14 ,  C08F2500/03

Abstract: Disclosed herein are ethylene-based polymers generally characterized by a Mw ranging from 70,000 to 200,000 g/mol, a ratio of Mz/Mw ranging from 1.8 to 20, an IB parameter ranging from 0.92 to 1.05, and an ATREF profile characterized by one large peak. These polymers have the dart impact, tear strength, and optical properties of a metallocene-catalyzed LLDPE, but with improved processability, melt strength, and bubble stability, and can be used in blown film and other end-use applications.

公开(公告)号：US11325996B2

公开(公告)日：2022-05-10

申请号：US17340438

申请日：2021-06-07

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan

IPC: C08F4/76 ,  C08F4/02 ,  C08F4/78

Abstract: A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a titanium compound, a solvent, and an amino acid. Also disclosed are olefin polymerization catalysts and pre-catalyst compositions thereof and methods of preparing olefin polymerization catalysts and pre-catalyst compositions thereof.

公开(公告)号：US11242418B2

公开(公告)日：2022-02-08

申请号：US17090590

申请日：2020-11-05

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan

IPC: C08F4/76 ,  C08F4/02 ,  C08F4/78

Abstract: A pre-catalyst composition comprising: a) a silica support comprising silica wherein an amount of silica is in a range of from about 70 wt. % to about 95 wt. % based upon a total weight of the silica support; b) a titanium-containing compound wherein an amount of titanium is in a range of from about 0.1 wt. % to about 20 wt. % based upon a total weight of the silica within the pre-catalyst composition; c) a chromium-containing compound wherein an amount of chromium is in a range of from about 0.01 wt. % to about 10 wt. % based upon a total weight of the silica within the pre-catalyst composition; d) a surfactant wherein the surfactant comprises a non-ionic surfactant, a cationic surfactant, or a combination thereof; e) a carboxylate wherein the carboxylate comprises a multi carboxylate, an alpha-hydroxy carboxylate, or a combination thereof; and f) a solvent.

公开(公告)号：US11242417B2

公开(公告)日：2022-02-08

申请号：US16861705

申请日：2020-04-29

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Kathy S. Clear ,  William C. Ellis ,  Deloris R. Gagan

IPC: C08F4/76 ,  C08F4/02 ,  C08F4/78

Abstract: A method for an olefin polymerization catalyst comprises contacting a silica support or a chromium-silica support with titanium to produce a Cr/Si—Ti catalyst. A titanium-containing solution is used to facilitate the association of titanium with the support, wherein the titanium-containing solution is formed by contacting a solvent, an amino acid, optionally a peroxide, optionally a carboxylate and a titanium-containing compound. A method for preparation of an olefin polymerization catalyst comprises contacting a chromium-silica support with the titanium-containing solution under conditions suitable to form a pre-catalyst composition and further processing the pre-catalyst composition to produce a Cr/Si—Ti catalyst. A method for preparation of an olefin polymerization catalyst comprises contacting a silica support with the titanium-containing solution and a chromium-containing compound under conditions suitable to form a pre-catalyst composition and further processing the pre-catalyst composition to produce a Cr/Si—Ti catalyst.