Patents Assigned to Thai Polyethylene Co., Ltd.
-
Patent number: 11866521Abstract: The present invention relates to a process for producing a multimodal polyethylene composition in the reactor system according to the invention, comprising; (a) polymerizing ethylene in an inert hydrocarbon medium in the first reactor in the presence of a catalyst system, selected from Ziegler-Natta catalyst or metallocene, and hydrogen in an amount of 0.1-95% by mol with respect to the total gas present in the vapor phase in the first reactor to obtain a low molecular weight polyethylene or a medium molecular weight polyethylene; (b) removing in the hydrogen removal unit 98.0 to 99.Type: GrantFiled: September 7, 2017Date of Patent: January 9, 2024Assignees: Thai Polyethylene Co., Ltd, SCG Chemicals Co., Ltd.Inventors: Piyawan Tiyapiboonchaiya, Patcharin Samphawamontri, Warachad Klomkamol
-
Publication number: 20230192913Abstract: The present invention relates to a process for producing a multimodal polyethylene composition in the reactor system according to the invention, comprising; (a) polymerizing ethylene in an inert hydrocarbon medium in the first reactor in the presence of a catalyst system, selected from Ziegler-Natta catalyst or metallocene, and hydrogen in an amount of 0.1-95% by mol with respect to the total gas present in the vapor phase in the first reactor to obtain a low molecular weight polyethylene or a medium molecular weight polyethylene; (b) removing in the hydrogen removal unit 98.0 to 99.Type: ApplicationFiled: September 7, 2017Publication date: June 22, 2023Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Piyawan TIYAPIBOONCHAIYA, Patcharin SAMPHAWAMONTRI, Warachad KLOMKAMOL
-
Patent number: 11674022Abstract: The present invention relates to a multimodal polyethylene composition comprising: (A) 40 to 65 parts by weight, preferably 43 to 52 parts by weight, most preferred 44 to 50 parts by? weight, of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol, wherein the low molecular weight polyethylene has a MI2 of 500 to 1,000 g/10 min according to ASTM D 1238; (B) 5 to 17 parts by weight, preferably 10 to 17 parts by weight, most preferred 10 to 15 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol; and (C) 30 to 50 parts by weight, preferably 37 to 47 party by weight, most preferably 39 to 45 parts by weight, of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,00Type: GrantFiled: September 8, 2017Date of Patent: June 13, 2023Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Arunsri Mattayan, Watcharee Cheevasrirungruang, Saranya Traisilanun, Warachad Klomkamol
-
Patent number: 11312792Abstract: The present invention relates to a reactor system for a multimodal polyethylene polymerization process, comprising; (a) a first reactor; (b) a hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and the use thereof as a container.Type: GrantFiled: September 11, 2017Date of Patent: April 26, 2022Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Chatdao Suk-Em, Natthaporn Suchao-In, Watcharee Cheevasrirungruang, Warachad Klomkamol, Boonyakeat Thitisak
-
Patent number: 11286378Abstract: The present invention relates to a reactor system for a multimodal polyethylene polymerization process, comprising: (a) first reactor; (b) a hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected, from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and use thereof as a pipe.Type: GrantFiled: September 7, 2017Date of Patent: March 29, 2022Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Natthaporn Suchao-In, Warachad Klomkamol
-
Patent number: 11236179Abstract: The present invention relates to a reactor system for a multimodal polyethylene polymerization process, comprising; (a) a first reactor; (b) a hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and use thereof as a sheet.Type: GrantFiled: September 11, 2017Date of Patent: February 1, 2022Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Chatchai Jarumaneeroj, Saranya Traisilanun, Watcharee Cheevasrirungruang, Piyawan Tiyapiboonchaiya
-
Patent number: 11001649Abstract: The present invention relates to a reactor system for a multimodal polyethylene composition comprising: (a) first reactor; (b) hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and use thereof as a pipe.Type: GrantFiled: September 7, 2017Date of Patent: May 11, 2021Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Natthaporn Suchao-In, Warachad Klomkamol
-
Patent number: 10941223Abstract: The present invention relates to a multimodal polyethylene composition comprising: (A) 40 to 65 parts by weight, preferably 43 to 52 parts by weight, most preferred 44 to 50 parts by weight, of the low molecular weight polyethylene, the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol and having a MFRa from 500 to 1.Type: GrantFiled: September 8, 2017Date of Patent: March 9, 2021Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Arunsri Mattayan, Saranya Traisilanun, Watcharee Cheevasrirungruang, Warachad Klomkamol
-
Patent number: 10919991Abstract: The present inventions relates to a multimodal polyethylene composition comprising; (A) 30 to 65 parts by weight, preferably 30 to 50 parts by weight, most preferred 30 to 40 parts by weight of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol or medium molecular weight polyethylene having a weight average molecular weight (Mw) of more than 90,000 to 150,000 g/mol; (B) 5 to 40 parts by weight, preferably 10 to 35 parts by weight, most preferred 15 to 35 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol; and (C) 10 to 60 parts by weight, preferably 15 to 60 parts by weight, most preferred 20 to 60 parts by weight of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of morType: GrantFiled: September 11, 2017Date of Patent: February 16, 2021Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Chatchai Jarumaneeroj, Saranya Traisilanun, Watcharee Cheevasrirungruang, Piyawan Tiyapiboonchaiya
-
Patent number: 10913041Abstract: The present invention relates to a multimodal polyethylene composition comprising: (A) 35 to 65 parts by weight, preferably 45 to 65 parts by weight, most preferred 50 to 60 parts by weight, of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol; (B) 5 to 40 parts by weight, preferably 5 to 30 parts by weight, most preferred 5 to 20 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol; and (C) 20 to 60 parts by weight, preferably 25 to 60 parts by weight, most preferred 35 to 55 parts by weight, of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the second ultra high molecular weight polyethylene having a weight average molecular wType: GrantFiled: September 8, 2017Date of Patent: February 9, 2021Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Saranya Traisilanun, Watcharee Cheevasrirungruang, Warachad Klomkamol
-
Patent number: 10865296Abstract: The present invention relates to a bimodal polyethylene composition comprising a low molecular weight polyethylene homopolymer fraction and high molecular weight polyethylene copolymer fraction having a C4 to C10 ?-olefin comonomer content of 0.25 to 3% mol with respect to the total monomer comprised in the high molecular weight polyethylene comonomer fraction, wherein the content of the low molecular weight polyethylene is from 50 to 60 wt % with respect to the total weight of the bimodal polyethylene composition; and the bimodal polyethylene composition has a soluble fraction according to Temperature Rising Elution Fractionation in 1,2,4-trichlorobenzene with 300 ppm of butylated hydroxytoluene at 150° C. of less than 6 wt %; and a pipe comprising the same.Type: GrantFiled: September 8, 2017Date of Patent: December 15, 2020Assignees: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Natthaporn Suchao-In, Warachad Klomkamol, Patcharin Samphawamontri
-
Publication number: 20200095404Abstract: The present inventions relates to a multimodal polyethylene composition comprising; (A) 30 to 65 parts by weight, preferably 30 to 50 parts by weight, most preferred 30 to 40 parts by weight of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol or medium molecular weight polyethylene having a weight average molecular weight (Mw) of more than 90,000 to 150,000 g/mol; (B) 5 to 40 parts by weight, preferably 10 to 35 parts by weight, most preferred 15 to 35 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol; and (C) 10 to 60 parts by weight, preferably 15 to 60 parts by weight, most preferred 20 to 60 parts by weight of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of morType: ApplicationFiled: September 11, 2017Publication date: March 26, 2020Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Chatchai JARUMANEEROJ, Saranya TRAISILANUN, Watcharee CHEEVASRIRUNGRUANG, Piyawan TIYAPIBOONCHAIYA
-
Publication number: 20200079938Abstract: The present invention relates to a multimodal polyethylene composition comprising: (A)35 to 65 parts by weight, preferably 45 to 65 parts by weight, most preferred 50 to 60 parts by weight, of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol; (B) 5 to 40 parts by weight, preferably 5 to 30 parts by weight, most preferred 5 to 20 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000g/mol; and (C) 20 to 60 parts by weight, preferably 25 to 60 parts by weight, most preferred 35 to 55 parts by weight, of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000g/mol or the second ultra high molecular weight polyethylene having a weight average molecular weighType: ApplicationFiled: September 8, 2017Publication date: March 12, 2020Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Saranya TRAISILANUN, Watcharee CHEEVASRIRUNGRUANG, Warachad KLOMKAMOL
-
Publication number: 20200056022Abstract: The present invention relates to a multimodal polyethylene composition comprising: (A) 40 to 65 parts by weight, preferably 43 to 52 parts by weight, most preferred 44 to 50 parts by? weight, of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol, wherein the low molecular weight polyethylene has a MI2 of 500 to 1,000 g/10 min according to ASTM D 1238; (B) 5 to 17 parts by weight, preferably 10 to 17 parts by weight, most preferred 10 to 15 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol; and (C) 30 to 50 parts by weight, preferably 37 to 47 party by weight, most preferably 39 to 45 parts by weight, of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,00Type: ApplicationFiled: September 8, 2017Publication date: February 20, 2020Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Arunsri MATTAYAN, Watcharee CHEEVASRIRUNGRUANG, Saranya TRAISILANUN, Warachad KLOMKAMOL
-
Publication number: 20200056021Abstract: The present invention relates to a multimodal polyethylene composition comprising: (A) 40 to 65 parts by weight, preferably 43 to 52 parts by weight, most preferred 44 to 50 parts by weight, of the low molecular weight polyethylene, the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol and having a MFRa from 500 to 1.Type: ApplicationFiled: September 8, 2017Publication date: February 20, 2020Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Arunsri MATTAYAN, Saranya TRAISILANUN, Watcharee CHEEVASRIRUNGRUANG, Warachad KLOMKAMOL
-
Publication number: 20200056023Abstract: The present invention relates to a reactor system for a multimodal polyethylene polymerization process, comprising; (a) first reactor; (b) a hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected, from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and use thereof as a pipe.Type: ApplicationFiled: September 7, 2017Publication date: February 20, 2020Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Natthaporn SUCHAO-IN, Warachad KLOMKAMOL
-
Publication number: 20190374919Abstract: The present invention relates to a reactor system for a multimodal polyethylene composition comprising; (a) first reactor (b) hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor, a multimodal, polyethylene composition obtainable this way and a screw cap comprising the same.Type: ApplicationFiled: September 8, 2017Publication date: December 12, 2019Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Saranya TRAISILANUN, Watcharee CHEEVASRIRUNGRUANG, Warachad KLOMKAMOL
-
Publication number: 20190359802Abstract: The present invention relates to a bimodal polyethylene composition comprising a low molecular weight polyethylene homopolymer fraction and high molecular weight polyethylene copolymer fraction having a C4 to C10 ?-olefin comonomer content of 0.25 to 3% mol with respect to the total monomer comprised in the high molecular weight polyethylene comonomer fraction, wherein the content of the low molecular weight polyethylene is from 50 to 60 wt % with respect to the total weight of the bimodal polyethylene composition; and the bimodal polyethylene composition has a soluble fraction according to Temperature Rising Elution Fractionation in 1,2,4-trichlorobenzene with 300 ppm of butylated hydroxytoluene at 150° C. of less than 6 wt %; and a pipe comprising the same.Type: ApplicationFiled: September 8, 2017Publication date: November 28, 2019Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Natthaporn SUCHAO-IN, Warachad KLOMKAMOL, Patcharin SAMPHAWAMONTRI
-
Publication number: 20190359738Abstract: The present invention relates to a reactor system for a multimodal polyethylene polymerization process, comprising; (a) a first reactor; (b) a hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and the use thereof as a container.Type: ApplicationFiled: September 11, 2017Publication date: November 28, 2019Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Chatdao SUK-EM, Natthaporn SUCHAO-IN, Watcharee CHEEVASRIRUNGRUANG, Warachad KLOMKAMOL, Boonyakeat THITISAK
-
Publication number: 20190359741Abstract: The present invention relates to a reactor system for a multimodal polyethylene composition comprising: (a) first reactor (b) hydrogen removal unit arranged between the first reactor and a second reactor comprising at least one vessel connected with a depressurization equipment, preferably selected from vacuum pump, compressor, blower, ejector or a combination thereof, the depressurization equipment allowing to adjust an operating pressure to a pressure in a range of 100-200 kPa (abs); (c) the second reactor; and (d) a third reactor and use thereof as a pipe.Type: ApplicationFiled: September 7, 2017Publication date: November 28, 2019Applicants: Thai Polyethylene Co., Ltd., SCG Chemicals Co., Ltd.Inventors: Natthaporn SUCHAO-IN, Warachad KLOMKAMOL