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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 9373. Отображено 100.

09-02-2012 дата публикации

Thermoplastic Polymeric Composition with Improved Resistance to Thermo-Oxidative Degradation and Use Thereof for Producing Pipes

Номер: US20120031495A1

Автор: Hansjorg Nitz, Heinz Vogt

Принадлежит: BASELL POLYOLEFINE GMBH

A polyolefinic moulding composition is suitable for producing pipes with improved resistance to thermo-oxidative degradation when these pipes are in extended contact with liquids which contain disinfectants with an oxidative action. Beside thermoplastic polyolefins, the moulding composition additionally contains specific aromatic amines which are liquid under standard conditions as an additive. The invention also relates to a pipe made from the moulding composition and to a process for improving the long-term resistance of water pipework made of plastics to damage by disinfectants with an oxidative action from the water by the use of this moulding composition.

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Номер записи: 1

17-05-2012 дата публикации

Chlorine dioxide resistant polyethylene pipes, their preparation and use

Номер: US20120118390A1

Автор: Jeroen Oderkerk, Martin Anker, Per-Ola Hagstrand, Tanja Piel

Принадлежит: Borealis AG

The present invention deals with the use of pipes made of cross-linked polyethylene for transporting water containing chlorine dioxide. Cross-linked polyethylene has a resistance of more than 3500 hours against water treated with chlorine dioxide when tested according to a modified method of ASTM F2263-03. Especially, the pipes made of cross-linked polyethylene can be used for transporting drinking water which had been disinfected by using chlorine dioxide.

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Номер записи: 2

31-01-2013 дата публикации

Hose for refrigerant transport use

Номер: US20130025733A1

Автор: Hideyuki Oishi, Kazuto Yamakawa, Koji Sato, Susumu Hatanaka, Yuusuke Matsuya

Принадлежит: Individual

A hose for refrigerant transport use comprising an inner layer with superior deterioration resistance performance. The innermost layer comprised in the hose for refrigerant transport use of the present invention is formed using a polyamide resin composition comprising a polyamide and, per 100 parts by mass thereof, from 0.5 to 20 parts by mass of an acid acceptor.

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Номер записи: 3

05-01-2017 дата публикации

POLYETHYLENE COMPOSITION FOR PIPE APPLICATIONS WITH IMPROVED SAGGING PROPERTIES

Номер: US20170002187A1

Автор: ADHYATMA BHATTAR Mohana Murali, HARJUNTAUSTA Jarmo, Tynys Antti

Принадлежит:

The present invention relates to a polyethylene composition comprising, 115-. (canceled)16. A polyethylene composition comprising , a copolymer of ethylene and at least one comonomer selected from alpha-olefins having from three to twelve carbon atoms,', 'wherein the ethylene copolymer comprises a low molecular weight component (A-1) and a high molecular weight component (A-2) with the low molecular weight component (A-1) having a lower weight average molecular weight than the high molecular weight component (A-2),, 'a base resin (A) comprising'}(B) carbon black in an amount of 1.0 to 10 wt % based on the total amount of the polyethylene composition, and(C) optional further additives other than carbon black;{'sup': 3', '3, 'sub': 5', '2.7/210', '747, 'wherein the base resin (A) has a density of equal to or more than 943 kg/mto equal to or less than 957 kg/m, determined according to ISO 1183, and the composition has a melt flow rate MFR(190° C., 5 kg) of equal to or more than 0.12 g/10 min to equal to or less than 0.20 g/10 min, determined according to ISO 1133, a shear thinning index SHIof equal to or more than 80 to equal to or less than 130 and a viscosity at a constant shear stress of 747 Pa, eta, of equal to or more than 700 kPas to equal to or less than 1200 kPas.'}17. The polyethylene composition according to claim 16 , wherein the low molecular weight component (A-1) is an ethylene homopolymer.18. The polyethylene composition according to claim 16 , wherein the low molecular weight component (A-1) has a melt flow rate MFR(190° C. claim 16 , 2.16 kg) of 200 g/10 min to 400 g/10 min claim 16 , determined according to ISO 1133.19. The polyethylene composition according to claim 16 , wherein the high molecular weight component (A-2) is a copolymer of ethylene and a comonomer selected from alpha-olefins having from three to twelve carbon atoms.20. The polyethylene composition according to claim 16 , wherein the weight ratio of the low molecular weight component (A ...

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Номер записи: 4

04-01-2018 дата публикации

CPVC PIPE HAVING IMPROVED RESISTANCE TO ENVIRONMENTAL STRESS CRACKING

Номер: US20180002518A1

Автор: Julius Mark D., Zook Christopher D.

Принадлежит:

The disclosed technology relates to a plastic compound suitable for preparing articles, such as pipe, with good physical properties, such as impact strength, and resistance to environmental stress cracking (ESC). In particular, the technology relates to a vinyl chloride resin, which includes chlorinated polyvinyl chloride (“CPVC”) homopolymer. Further-more, the invention relates to vinyl chloride homopolymer compounds containing the vinyl chloride homopolymer resin, and articles made from such compounds, which compounds meet 23447 cell classifications under ASTM D1784. 1. A chlorinated vinyl chloride (CPVC) compound comprising (A) at least one high molecular weight chlorinated vinyl chloride polymer resin (CPVC resin) , wherein said high molecular weight CPVC resin is prepared by chlorinating a vinyl chloride resin having an inherent viscosity of about 1.02 or greater.2. The CPVC compound of claim 1 , additionally comprising (B) at least one standard molecular weight CPVC resin claim 1 , wherein said standard molecular weight CPVC is prepared by chlorinating a vinyl chloride resin having an inherent viscosity of less than 0.92.3. The CPVC compound of claim 2 , wherein the ratio of the high molecular weight CPVC resin to the standard molecular weight CPVC resin is 1:1 or greater.4. The CPVC compound of claim 1 , wherein said high molecular weight CPVC resin comprises a chlorine content of less than 67 wt. %.5. The CPVC compound of claim 1 , wherein said standard molecular weight CPVC resin comprises a chlorine content of less than 67 wt. %.6. The CPVC compound of claim 1 , wherein said compound further comprises (C) other additives7. The CPVC compound of claim 6 , wherein the other additive comprises at least one of (1) stabilizers claim 6 , (2) impact modifiers claim 6 , 3) lubricants claim 6 , (4) fillers claim 6 , (5) colorants claim 6 , and (6) combinations thereof.8. The CPVC compound of claim 7 , wherein the CPVC compound comprises from about 0.1 to about 7.0 ...

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Номер записи: 5

02-01-2020 дата публикации

POLYOLEFIN COMPOSITION

Номер: US20200002517A1

Автор: Boerakker Mark Johannes, Jongerius Daan, SAMPERS Jacques Theodorus Elisabeth Hubertina, VAN MIERLOO Sarah, Voets Patrick Elisabeth Luc

Принадлежит:

The invention relates to a polyolefin composition comprising A. at least a homopolymer or copolymer of ethylene or propylene and B. cholestanyl ferulate. The composition can be used in the production of articles such as a pipe, cap and closure, film, food contact packaging, biomedical article, health care article and pharmaceutical article. 1. A polyolefin composition comprising:A. at least a homopolymer or copolymer of ethylene or propylene andB. cholestanyl ferulate.2. The composition according to characterised in that the homo- or copolymer ishigh density polyethylene, multimodal high density polyethylene, low density polyethylene, linear low density polyethylene or polypropylene.3. The composition according to characterised in that the homo- or copolymer is bimodal polyethylene.4. An article produced with the polyolefin composition according to .5. The article according to wherein the article is a pipe claim 4 , cap and closure claim 4 , film claim 4 , food contact packaging claim 4 , biomedical article claim 4 , health care article or pharmaceutical article.6. The pipe according to characterised in that the composition comprises a phenolic compound and organic phosphite and/or phosphonite.7. The composition according to characterised in that the homo- or copolymer is high density polyethylene.8. The composition according to characterised in that the homo- or copolymer is multimodal high density polyethylene.9. The composition according to characterised in that the homo- or copolymer is low density polyethylene.10. The composition according to characterised in that the homo- or copolymer is linear low density polyethylene or polypropylene.11. An article produced with the polyolefin composition according to .12. The article according to wherein the article is a pipe claim 11 , cap and closure claim 11 , film claim 11 , food contact packaging claim 11 , biomedical article claim 11 , health care article or pharmaceutical article.13. The pipe according to ...

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Номер записи: 6

07-01-2021 дата публикации

ETHYLENE-BASED POLYMER HAVING EXCELLENT LONG-TERM PRESSURE RESISTANCE CHARACTERISTICS, AND PIPE USING SAME

Номер: US20210002463A1

Автор: JEON Tae Uk, JEON Ui Gab, Jeong Dong Wook, KIM Dong Ok, KU II Hwae, Lim Seong Jae, Lim Yu Jeong, PARK Hye Ran

Принадлежит: HANWHA SOLUTIONS CORPORATION

Provided are an ethylene-based polymer having excellent long-term pressure resistance characteristics and a pipe using the ethylene-based polymer. The ethylene-based polymer satisfies the balance of mechanical characteristics and excellent molding processability, as compared with a conventional ethylene-based polymer. Also provided are an ethylene-based polymer having a wide molecular weight distribution and a small lamellar thickness, thereby increasing tie molecules and obtaining excellent long-term pressure resistance characteristics, and a pipe using the same. 1. A high-density ethylene-based polymer produced by polymerization of ethylene and at least one monomer selected from the group consisting of α-olefin-based monomers ,{'sup': 3', '3, 'wherein a density is 0.910 g/cmto 0.960 g/cm,'}an MI is 0.1 g/10 min to 10 g/10 min,a weight average molecular weight (g/mol) is 60,000 to 250,000,a molecular weight distribution (Mw/Mn) is 4 to 6, andan average thickness of lamellar is 1 nm to 15 nm and a lamellar distribution (Lw/Ln) is 1.1 or more.2. The high-density ethylene-based polymer of claim 1 , wherein 50% or more of the lamellar in the high-density ethylene-based polymer has a thickness of less than 1 nm to 10 nm.3. The high-density ethylene-based polymer of claim 1 , wherein less than 40% to 50% of the lamellar in the high-density ethylene-based polymer has a thickness in a range of less than 10 nm to 15 nm.4. The high-density ethylene-based polymer of claim 1 , wherein the high-density ethylene-based polymer comprises a long chain branch (LCB).5. The high-density ethylene-based polymer of claim 1 , wherein the α-olefin-based monomers comprise at least one selected from the group consisting of propylene claim 1 , 1-butene claim 1 , 1-pentene claim 1 , 4-methyl-1-pentene claim 1 , 1-hexene claim 1 , 1-heptene claim 1 , 1-octene claim 1 , 1-decene claim 1 , 1-undecene claim 1 , 1-dodecene claim 1 , 1-tetradecene claim 1 , 1-hexadecene claim 1 , and 1-aitosen.6. ...

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Номер записи: 7

03-01-2019 дата публикации

PARTIALLY-CROSSLINKED POLYETHYLENE FORMULATIONS AND METHODS OF MAKING SAME

Номер: US20190002673A1

Автор: FERNANDEZ Patricia Perdiz, NIAMPIRA Miguel A. Molano

Принадлежит:

Embodiments of polyethylene formulations comprise a partially cross-linked multimodal polyethylene composition having a the first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the partially cross-linked multimodal polyethylene composition comprises a density from 0.930 g/cc to 0.943 g/cc measured according to ASTM D792, a melt index (I) from 0.01 g/10 min to 5 g/10 min, when measured according to ASTM D1238 at 190° C. and a 2.16 kg load, a molecular weight distribution (MWD) from 5 to 10, wherein MWD is defined as Mw/Mn with Mw being a weight average molecular weight and Mn being a number average molecular weight, and a complex viscosity ratio from 250 to 450, wherein the complex viscosity ratio is defined as the complex viscosity at a shear rate of 0.01 rad/s divided by the complex viscosity at a shear rate of at a shear rate of 100 rad/s. 1. A polyethylene formulation comprising a partially cross-linked multimodal polyethylene composition having a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component , wherein the partially cross-linked multimodal polyethylene composition comprises:a density from 0.930 g/cc to 0.943 g/cc measured according to ASTM D792;{'sub': '2', 'a melt index (I) from 0.01 g/10 min to 5 g/10 min, when measured according to ASTM D1238 at 190° C. and a 2.16 kg load;'}{'sub': w', 'n', 'w', 'n, 'a molecular weight distribution (MWD) from 5 to 10, wherein MWD is defined as M/Mwith Mbeing a weight average molecular weight and Mbeing a number average molecular weight; and'}a complex viscosity ratio from 250 to 450, wherein the complex viscosity ratio is defined as the complex viscosity at a shear rate of 0.01 rad/s divided by the complex viscosity at a shear rate of at a shear rate of 100 rad/s.2. The polyethylene formulation of claim 1 , wherein the partially cross-linked multimodal polyethylene composition has ...

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Номер записи: 8

13-01-2022 дата публикации

Polyethylene Having High Degree of Crosslinking and Crosslinked Polyethylene Pipe Comprising The Same

Номер: US20220010110A1

Автор: Cho Sol, CHOI Yi Young, Kim Sun Mi, KIM Yeonsoo, LEE Hyunsup, Lee Myunghan

Принадлежит: LG CHEM, LTD.

The present disclosure relates to a polyethylene having high degree of crosslinking and a crosslinked polyethylene pipe including the same. The polyethylene according to the present disclosure has a high content of ultra-high molecular weight, and thus a crosslinking rate is improved, and thus a sufficient degree of crosslinking is exhibited even when the crosslinking time is shortened, thereby exhibiting excellent strength and pressure resistance characteristics. 1. A polyethylene which satisfies:{'sup': 3', '3, 'a density of 0.940 g/cmor more and 0.960 g/cmor less as measured according to ASTM D792;'}a number average molecular weight (Mn) of 20,000 g/mol or more and 70,000 g/mol or less;a weight average molecular weight (Mw) of 150,000 g/mol or more and 350,000 g/mol or less;{'sub': '21.6', 'a melt index (MI) of 1 g/10 min or more and 10 g/10 min or less as measured at a temperature of 190° C. under a load of 21.6 kg according to ASTM D1238, and'}an integration value in a region where log Mw value is 6.0 or more, of 4.5% or more relative to the total integration value, in a GPC curve graph in which the x axis is log Mw and the y axis is dw/d log Mw.2. The polyethylene according to claim 1 , wherein the integration value in a region where the log Mw value is 6.0 or more is 4.5% to 10% relative to the total integration value.3. The polyethylene according to claim 1 , which has a polydispersity index (PDI claim 1 , Mw/Mn) of 3.0 or more and 10.0 or less.5. The polyethylene according to claim 4 , wherein Rto Rand R′ to R′ in Chemical Formulas 2a claim 4 , 2b and 2c each independently represents hydrogen claim 4 , a halogen claim 4 , a C1 to C20 alkyl group claim 4 , or a C1 to C20 haloalkyl group.8. A crosslinked polyethylene pipe produced by a crosslinking reaction of the polyethylene of claim 1 , and a crosslinking agent.9. The crosslinked polyethylene pipe according to claim 8 , wherein the crosslinking agent comprises at least one selected from the group ...

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Номер записи: 9

11-01-2018 дата публикации

ADHESIVE COMPOSITION

Номер: US20180010023A1

Автор: Jeruzal Mark, Liu Yi, Stubenrauch Kurt

Принадлежит:

The present invention relates to an adhesive composition comprising a. a polyethylene resin (A) which has been grafted with an acid grafting agent and b. an epoxy resin (B) in an amount of 0.01 to 15 wt. % of the adhesive total composition, wherein the adhesive composition is having a MFRof 0.1 to 12 g/10 min. Furthermore, the invention relates to an article, in particular a multilayer pipe, comprising an adhesive layer which comprises said adhesive composition and the use of said adhesive composition for the production of an adhesive layer, in particular of an adhesive layer of a pipe. 1. An adhesive composition comprisinga. a polyethylene resin (A) which has been grafted with an acid grafting agent andb. an epoxy resin (B) in an amount of 0.01 to 15 wt. % of the adhesive total composition,wherein the adhesive composition is having a MFR5 of 0.1 to 12 g/10 min.2. The adhesive composition according to wherein the adhesive composition has a density of 910 to 990 kg/m3.3. The adhesive composition according to wherein the adhesive composition further comprises an elastomeric resin (C).4. The adhesive composition according to wherein the elastomeric resin (C) is present in an amount of 2 to 60 wt. % claim 1 , of the total composition.5. The adhesive composition according to wherein the polyethylene resin (A) has a MFR2 of 0.5 to 20 g/10 min.6. The adhesive composition according to wherein the polyethylene resin (A) has a density of 920 to 970 kg/m3.7. The adhesive composition according to wherein the acid grafting agent is selected from unsaturated carboxylic acids and derivatives thereof.8. The adhesive composition according to wherein the amount of said acid grafting agent is from 0.01 to 3.0 wt. % claim 1 , of the overall composition.9. The adhesive composition according to wherein the epoxy resin (B) is present in an amount of 0.05 to 20 wt. % of the total composition.10. The adhesive composition according to wherein the epoxy resin (B) is a Bisphenol A resin.11. An ...

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Номер записи: 10

14-01-2021 дата публикации

Bimodal high-density polyethylene resins and compositions with improved properties and methods of making and using the same

Номер: US20210009792A1

Автор: Joshua Allen COTTLE, Luc DHEUR, Mark Anthony GESSNER, Robert Ernest SANDER

Принадлежит: Ineos Olefins and Polymers USA

Bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability. The compositions comprise a base resin having a density of about 945 kg/m3 to about 955 kg/m3, and an ethylene polymer (A) having a density of at least about 968 kg/m3, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A). The composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to 2500 Pa·s. Articles made from these compositions, such as pipes and fittings achieve long-term oxidative resistance and have a low wall thickness variability while maintaining high production output.

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Номер записи: 11

09-01-2020 дата публикации

CRYSTALLINE THERMOPLASTIC POLYURETHANE ARTICLE

Номер: US20200010604A1

Автор: JR. Joseph J., Lowenberg Gonzalo, Suragani Venu Lalith B., Vontorcik

Принадлежит:

The disclosed technology relates to an article, such as a hose, tube, sheet, film, or filament made from a crystalline thermoplastic polyurethane composition, wherein the crystalline thermoplastic polyurethane composition comprises the reaction product of a polyisocyanate component, a polyester polyol component, optionally a chain extender component, and optionally a catalyst. The article is produced by melt or extrusion processes. 1. A filament comprising:a crystalline thermoplastic polyurethane composition comprising:the reaction product of (a) a polyisocyanate component, (b) a polyol component, comprising a polyester polyol (c) optionally, a catalyst; and (d) optionally, a chain extender component, wherein the crystalline thermoplastic polyurethane composition has a melt enthalpy measured by DSC of at least about 17 J/g and/or a cooling enthalpy measured by DSC of at least about 15 J/g, wherein the filament shrinks less than 15% after exposure to 80° C. for 90 seconds.2. The article of where the article is prepared by melt-extrusion.3. The article of wherein the polyester polyol comprises a polycaprolactone polyester polyol.4. The article of wherein the polyester polyol consists essentially of a polycaprolactone polyester polyol.5. The article of wherein the polyester polyol component comprises polybutanediol succinate.6. The article of wherein the polyester polyol component consists essentially of polybutanediol succinate.7. The article of wherein the polybutanediol succinate has a molecular weight of about 3000 to about 6000.8. The article of claim 7 , wherein the polybutanediol succinate has a molecular weight of about 4000 to about 6000.9. The article of wherein the thermoplastic polyurethane composition has a melt enthalpy measured by DSC of at least 40 J/g.10. The article of wherein the thermoplastic polyurethane composition has a cooling enthalpy measured by DSC of at least 40 J/g.11. The article of claim 1 , wherein the polyol component further comprises ...

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Номер записи: 12

03-02-2022 дата публикации

POLYOLEFIN RESIN BLENDS FOR HIGH STRESS CRACKING RESISTANCE AND GOOD PROCESSABILITY

Номер: US20220033630A1

Автор: CHEEVASRIRUNGRUANG Watcharee, NANTASETPHONG Wiroj, TRAISILANUN Saranya

Принадлежит:

Polyethylene composition comprising a melt blend, the melt blend comprising: a) a first multimodal polyethylene, the first multimodal polyethylene having a medium weight average molecular weight of a high weight average molecular weight, a density of more than 0.950 to 0.965 g/cmaccording to ISO 1183 and a MFRof 0.3 to 2.0 g/10 min according to ISO 1133; and b) a second multimodal polyethylene, the second multimodal polyethylene having a high weight average molecular weight, a density of 0.940 to 0.950 g/cmaccording to ISO 1183 and a MFRof 0.03 to 0.15 g/10 min according to ISO 1133; wherein the polymer composition has a Full Notch Creep Test (FNCT) according to ISO 16770 of at least 58 hours and a Charpy impact strength at a temperature of 23° C. of at least 4 kJ/maccording to ISO 179. 1. A polyethylene composition comprising a melt blend , the melt blend comprising:{'sup': '3', 'sub': '2', 'a) a first multimodal polyethylene, the first multimodal polyethylene having a medium weight average molecular weight from 90,000 to 200,000 g/mol or a high weight average molecular weight from 200,000 to 1,000,000 g/mol, a density of more than 0.950 to 0.965 g/cmaccording to ISO 1183 and a MFRof 0.3 to 2.0 g/10 min according to ISO 1133; and'}{'sup': '3', 'sub': '2', 'b) a second multimodal polyethylene, the second multimodal polyethylene having a high weight average molecular weight from 200,000 to 1,000,000 g/mol, a density of 0.940 to 0.950 g/cmaccording to ISO 1183 and a MFRof 0.03 to 0.15 g/10 min according to ISO 1133;'}{'sup': '2', 'wherein the polymer composition has a Full Notch Creep Test (FNCT) according to ISO 16770 of at least 58 hours and a Charpy impact strength at a temperature of 23° C. of at least 4 kJ/maccording to ISO 179.'}2. The polyethylene composition according to claim 1 , wherein the polymer composition has a FNCT from 58 to 100 hours.3. The polyethylene composition according to claim 1 , wherein the polyethylene composition has a Charpy impact ...

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Номер записи: 13

18-01-2018 дата публикации

SAPONIFIED ETHYLENE-VINYL ESTER COPOLYMER RESIN COMPOSITION, RESIN TUBE FOR HIGH-PRESSURE GAS OR RESIN LINER FOR COMPOSITE CONTAINER, AND HIGH-PRESSURE GAS HOSE OR COMPOSITE CONTAINER

Номер: US20180016430A1

Автор: INAKUMA Akinobu, KANDA Taiji, Shibutani Mitsuo

Принадлежит: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.

The present invention relates to a resin composition having gas barrier properties, which has excellent low-temperature characteristics and resistance to hydrogen brittleness without greatly detracting from gas barrier properties, and which can contribute to improve durability when used as a resin tube for high-pressure gas or as a resin liner for a composite container. Provided is an EVOH resin composition comprising: a fluororesin (A) having a functional group capable of interacting, or reacting, with a hydroxyl group; a thermoplastic resin (B) having a carboxyl group or an acid anhydride group (however, the fluororesin (A) and a saponified ethylene-vinyl ester copolymer (EVOH) having a carboxyl group or an acid anhydride group are excluded); and an EVOH (C). 1. A saponified ethylene-vinyl ester copolymer resin composition comprising:a fluororesin (A) having a functional group capable of interacting, or reacting, with a hydroxyl group;a thermoplastic resin (B) having a carboxyl group or an acid anhydride group (wherein, the fluororesin (A) and saponified ethylene-vinyl ester copolymers having a carboxyl group or an acid anhydride group are excluded); anda saponified ethylene-vinyl ester copolymer (C).2. The saponified ethylene-vinyl ester copolymer resin composition according to claim 1 , wherein the percentage content of the functional group capable of interacting claim 1 , or reacting claim 1 , with a hydroxyl group in the fluororesin (A) is 0.01 to 10 mol %.3. The saponified ethylene-vinyl ester copolymer resin composition according to claim 1 , wherein the volumetric flow rate of the fluororesin (A) is 0.1 to 1000 mm/s.4. The saponified ethylene-vinyl ester copolymer resin composition according to claim 1 , wherein the thermoplastic resin (B) is an acid-modified ethylene-α-olefin copolymer rubber.5. The saponified ethylene-vinyl ester copolymer resin composition according to claim 1 , wherein the melt flow rate (230° C. claim 1 , 2160 g load) of the ...

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Номер записи: 14

16-01-2020 дата публикации

SILICONE RUBBER COMPOSITION, FIXING MEMBER, MANUFACTURING METHOD OF FIXING MEMBER, AND IMAGE FORMING APPARATUS INCLUDING FIXING MEMBER

Номер: US20200017684A1

Автор: KOGA Hirofumi, MATSUMOTO Yoshiyasu, Yasukawa Hiroyuki

Принадлежит:

A silicone rubber composition is a silicone rubber composition, in a fixing member having a rubber member on a surface, for forming the rubber member, and an integrated value of a high-molecular component from 32 minutes to 37 minutes of retention time in measurement of gas-chromatography mass spectrometry (GC/MS method) conducted under a predetermined condition is 3.0 or more. 1. A silicone rubber composition , in a fixing member having a rubber member on a surface used in an image forming apparatus , for forming the rubber member , whereinan integrated value of a high-molecular component from 32 minutes to 37 minutes of retention time in measurement of gas-chromatography mass spectrometry (GC/MS method) conducted under a predetermined condition is 3.0 or more.2. The silicone rubber composition according to claim 1 , whereinan integrated value of a low-molecular component from 10 minutes to 32 minutes of the retention time in the measurement of the GC/MS method is 1.7 or less, and an integrated value of the high-molecular component from 32 minutes to 37 minutes of the retention time is within a range from 3.0 to 30.3. The silicone rubber composition according to claim 1 , whereinan integrated value of a low-molecular component from 10 minutes to 32 minutes of the retention time in the measurement of the GC/MS method is 1.3 or less, and an integrated value of the high-molecular component from 32 minutes to 37 minutes of the retention time is within a range from 5.0 to 30.4. The silicone rubber composition according to claim 1 , wherein0.05 mass % or more of a high-molecular silicon compound having a weight average molecular weight within a range from 900 to 1700 is contained.5. A fixing member used in an image forming apparatus and having a rubber member on a surface claim 1 , wherein{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the rubber member is molded by using the silicone rubber composition according to .'}6. A manufacturing method of a fixing member for ...

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Номер записи: 15

28-01-2016 дата публикации

PROPYLENE RANDOM COPOLYMER COMPOSITION FOR PIPE APPLICATIONS

Номер: US20160024288A1

Автор: Alastalo Kauno, Hedesiu Cristian

Принадлежит:

The present invention relates to a polypropylene composition comprising a propylene random copolymer (A) with at least one comonomer selected from alpha-olefins with 2 or 4 to 8 carbon atoms and a nucleating agent (B), wherein the polypropylene composition has a polydispersity index (PI) of from 2.0 to 7.0, a melt flow rate MFR(2:16 kg, 230° C.) of from 0.05 to 1.0 g/10 min, determined according to ISO 1133 and a Charpy Notched Impact Strength at 0° C. of at least 4.0 kJ/m, determined according to ISO 179/1eA:2000 using notched injection moulded specimens, a process for producing said polypropylene composition, an article comprising said polypropylene composition and the use of said polypropylene composition for the production of an article. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. A polypropylene composition suitable for pipe applications comprisinga propylene random copolymer (A) with at least one comonomer selected from alpha-olefins with 2 or 4 to 8 carbon atoms anda nucleating agent (B),{'sub': '2', 'sup': '2', 'wherein the polypropylene composition has a polydispersity index (PI) of from 2.0 to 7.0, a melt flow rate MFR(2.16 kg, 230° C.) of from 0.05 to 1.0 g/10 min, determined according to ISO 1133, and a Charpy Notched Impact Strength at 0° C. of at least 4.0 Id/m, determined according to ISO 179/1eA:2000 using notched injection moulded specimens.'}18. The polypropylene composition according to claim 17 , wherein the propylene random copolymer (A) does not contain an elastomeric polymer phase dispersed therein.19. The polypropylene composition according to claim 17 , wherein the polypropylene composition has a flexural modulus of at least 750 MPa claim 17 , preferably at least 800 MPa claim 17 , most preferably 850 MPa to an upper limit of not more than 1400 MPa claim 17 , determined ...

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Номер записи: 16

22-01-2015 дата публикации

BIMODAL HIGH-DENSITY POLYETHYLENE RESINS AND COMPOSITIONS WITH IMPROVED PROPERTIES AND METHODS OF MAKING AND USING THE SAME

Номер: US20150025195A1

Автор: Cottle Joshua Allen, Dheur Luc, Gessner Mark Anthony, Sander Robert Ernest

Принадлежит: INEOS Olefins & Polymers USA, a division of INEOS USA LLC

The present disclosure is related to bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability comprising a base resin which has a density of about 945 kg/mto about 955 kg/m, and comprises an ethylene polymer (A) having a density of at least about 968 kg/m, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2500 Pa·s. The present disclosure also relates to methods of making, and using the present compositions, and to articles made from there composition, and preferably to pipes and fittings. 1. A bimodal high-density polyethylene polymer composition comprising a base resin which has a density of about 945 kg/mto about 955 kg/m , preferably 946 to 951 kg/m , most preferably 947 to 951 , and comprises an ethylene polymer (A) having a density of at least about 968 kg/m , preferably above 970 , most preferably above 971 in an amount ranging from about 45% to about 55% by weight , preferably between 47 and 53% by weight , preferably between 48 and 52% by weight , most preferably between 49.5 and 51.5% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) , wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s , preferably between 220 and 450 kPa·s , most preferably between 220 and 420 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2600 Pa·s , preferably from 2000 to 2500 Pa·s , most preferably from 2100 to 2450 Pa·s.2. The polymer composition according to claim 1 , wherein the composition exhibits a viscosity at a constant shear stress of 747 Pa (η*) ranging from about 400 kPa·s to about ...

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Номер записи: 17

10-02-2022 дата публикации

POLYETHYLENE OR POLYPROPYLENE ARTICLES

Номер: US20220041846A1

Автор: BERTET Marie Laure, Herbst Heinz, WEYLAND Tania

Принадлежит:

An article in the form of a pipe, cable or geomembrane comprising polyethylene or polypropylene, and components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is magnesium hydroxide which is present in an amount of 0.01% to 5% by weight relative to the weight of the polyethylene or polypropylene, and the weight ratio of component A) to component B) is 1:50 to 50:1, with the proviso that component B) is not a hydrotalcite. 1. An article in the form of a pipe , cable or geomembrane comprising polyethylene or polypropylene , and components A) and B) , wherein component A) is a hindered amine light stabilizer containing a triazine residue , component B) is magnesium hydroxide which is present in an amount of 0.01% to 5% by weight relative to the weight of the polyethylene or polypropylene , and the weight ratio of component A) to component B) is 1:50 to 50:1 , with the proviso that component B) is not a hydrotalcite.5. An article according to claim 1 , wherein Component B) has a mean particle size of 0.2 to 10 micrometres.6. An article according to claim 1 , further comprising a component C) which is 1 claim 1 ,3 claim 1 ,5-tris (3 claim 1 ,5-di-tert-butyl-4-hydroxybenzyl)-2 claim 1 ,4 claim 1 ,6-trimethylbenzene claim 1 , ethylene bis[3 claim 1 ,3-bis (3-tert-butyl-4-hydroxyphenyl) butyrate] or 1 claim 1 ,3 claim 1 ,5-tris (3 claim 1 ,5-di-tertbutyl-4-hydroxybenzyl)-isocyanurate.7. An article according to claim 1 , further comprising a component D) which is tris(2 claim 1 ,4-di-tert-butylphenyl) phosphite claim 1 , [3 claim 1 ,3′ claim 1 ,5 claim 1 ,5′-tetra-tert. butyl-1 claim 1 ,1′biphenyl-2 claim 1 ,2′-diyl]-[3-(3-methyl-4-hydroxy-5-tert.butyl-phenyl)-propyl]-phosphite claim 1 , [2 claim 1 ,2′-ethylene-bis-(4 claim 1 ,6-di-tert. butyl-phenyl)-1 claim 1 ,1′-diyl]-[1 claim 1 ,6-dimethyl-4-(5 claim 1 ,7-di-tert. butyl)-3H-1-benzofuran-2-one)-phenyl]-phosphite claim 1 , [2 claim 1 ,2′-ethylene-bis-(4 ...

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Номер записи: 18

10-02-2022 дата публикации

HARD-PHASE-MODIFIED THERMOPLASTIC POLYURETHANE

Номер: US20220041861A1

Автор: Bertels Alfons, Hartwig Sebastian, Kempfert Dirk, Muehren Oliver, Roy Nabarun

Принадлежит: BASF SE

A thermoplastic poly urethane can be obtained by a process involving a reaction of a thermoplastic polyester (PE-1) with a diamine (D1), to obtain a composition (Z1) containing an amide (PA-1), and a reaction of the obtained composition (Z1) with an isocyanate composition (I1), containing at least one polyisocyanate, and a polyol composition (P1). The diamine (D1) has a molecular weight in the range from 50 g/mol to 700 g/mol. A process can produce such a thermoplastic polyurethane, and shaped articles can be made containing the thermoplastic polyurethane. 1: A thermoplastic polyurethane , obtainable or obtained by a process comprising:reacting at least one diamine (D1), having a molecular weight in the range from 50 g/mol to 700 g/mol, with a thermoplastic polyester (PE-1), to obtain an amide (PA-1), andreacting an isocyanate composition (I1) comprising at least one polyisocyanate, the amide (PA-1), and a polyol composition (P1).2: The thermoplastic polyurethane according to claim 1 , wherein the process comprises (i) and (ii):(i) reacting the thermoplastic polyester (PE-1) with the at least one diamine (D1), to obtain a composition (Z1) comprising the amide (PA-1),(ii) reacting the composition (Z1) obtained in (i) with the isocyanate composition (I1) comprising at least one polyisocyanate, and the polyol composition (P1).5: The thermoplastic polyurethane according to claim 1 , wherein the polyol composition (P1) comprises at least one polycarbonate polyol (PC1).6: The thermoplastic polyurethane according to claim 1 , wherein the thermoplastic polyester (PE-1) has a molecular weight in the range from 1500 g/mol to 60000 g/mol.7: The thermoplastic polyurethane according to claim 1 , wherein the thermoplastic polyester (PE-1) is selected from the group consisting of a polyalkylene terephthalate and poly-L-lactic acid.8: The thermoplastic polyurethane according to claim 1 , wherein the thermoplastic polyester (PE-1) has a molecular weight in the range from 1000 g/mol ...

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Номер записи: 19

10-02-2022 дата публикации

Method for producing low-cost fully biodegradable disposable straw

Номер: US20220041865A1

Автор: Dong Wu, Jingren HE, Rui Zhang, Shuxin YE, Sijia JIANG, Yubao Li

Принадлежит: China Yunhong Holdings Co Ltd, Guozhong Xinghe Biomedical Technology Co Ltd, Yunhong Environmental Technology Co Ltd

A method for producing a low-cost fully biodegradable disposable straw. Natural plant powder is prepared. Deacetylated konjac gel is prepared. The taro starch-cassava starch is crosslinked. The raw material is stirred and mixed to obtain the mixed raw material, and the mixed raw material is heated. The heated raw material is added to the beverage straw manufacturing unit to obtain a straw crude. The straw crude is cut to obtain several straws. The quality inspection, the disinfection and the packaging of the straw are carried out, and the fully biodegradable straw is obtained, finally.

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Номер записи: 20

24-01-2019 дата публикации

AN ETHYLENE/ALPHA-OLEFIN COPOLYMER COMPOSITION, AND ARTICLES COMPRISING THE SAME

Номер: US20190023883A1

Автор: Bastero Amaia, Demirors Mehmet, Fontaine Philip P., Ginger Douglas S., Kapur Mridula, Lopez David, WANG Jian

Принадлежит: Dow Global Technologies LLC

An ethylene/alpha-olefin copolymer composition having a density from 0.935 to 0.955 g/cc; a ratio of weight average molecular weight to number average molecular weight, Mw/Mn, of from 3 to 10; a z-average molecular weight, Mz, from 200 kg/mol to 500 kg/mol; and a PENT value of greater than 500 hours at 80° C. and 2.4 MPa; wherein when the composition is formed into a monolayer pipe the pipe has a pipe hydrostatic strength of greater than 100 hours at 20° C. and 12.0 MPa. Also provided is a pipe or pipe fitting comprising the ethylene/alpha-olefin copolymer composition. 1. A pipe fabricated from an ethylene/alpha-olefin copolymer composition having:a) a density from 0.935 to 0.955 g/cc;b) a ratio of weight average molecular weight to number average molecular weight, Mw/Mn, of from 3 to 10;c) a z-average molecular weight, Mz, of from 200 kg/mol to 500 kg/mol; andd) a PENT value determined according to ASTM F1473-13 of greater than 500 hours at 80° C. and 2.4 MPa;wherein the pipe has a pipe hydrostatic strength, determined according to ISO 1167, of greater than 100 hours at 20° C. and 12.0 MPa as specified in EN 12201-2.2. The pipe of claim 1 , wherein the pipe further exhibits a pipe hydrostatic strength claim 1 , determined according to ISO 1167 claim 1 , of at least 1 claim 1 ,000 hours at 95° C. and 3.6 MPa as specified in ISO 22391-2.3. The pipe of claim 1 , wherein the composition further exhibits a zero shear viscosity ratio claim 1 , ZSVR claim 1 , of from 1.5 to 20.4. The pipe of claim 1 , wherein the composition further exhibits a dynamic viscosity claim 1 , η* claim 1 , at 100 rad/sec and 190° C. of less than 2 claim 1 ,000 Pa-s.5. The pipe of claim 1 , wherein the composition further exhibits a dynamic viscosity claim 1 , η* claim 1 , at 0.1 rad/sec and 190° C. from 10 claim 1 ,000 to 70 claim 1 ,000 Pa-s.6. The pipe of claim 1 , wherein the composition has a density from 0.940 to 0.952 g/cc.7. The pipe of claim 1 , wherein the composition has a ratio of ...

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Номер записи: 21

10-02-2022 дата публикации

Thermoplastic Vulcanizate Compositions in Polymeric Inner / Pressure Sheaths of Flexible Pipes for Oil & Gas Applications

Номер: US20220042625A1

Автор: Anantha Narayana lyer Krishnan, Davis Deborah J., Doufas Antonios K., Doynov Krassimir l., Person Angela M., Takacs Andrew A., Wang Wanli

Принадлежит:

In an embodiment, a flexible pipe is provided. The flexible pipe includes a polymeric inner sheath that includes a thermoplastic vulcanizate (TPV) composition, the TPV composition comprising: a rubber and a thermoplastic olefin, wherein a concentration of the rubber is from 20 wt % to 90 wt % based on a combined weight of the rubber and the thermoplastic olefin, and a concentration of the thermoplastic olefin is from 10 wt % to 80 wt % based on the combined weight of the rubber and the thermoplastic olefin; and wherein the TPV composition has at least one of an air permeability of less than 30 barrers at 23° C. and a COpermeability of less than 40 barrers at 23° C. In another embodiment, a thermoplastic umbilical hose is provided. In another embodiment, a pipe structure is provided. 1. A flexible pipe comprising: 'a concentration of the rubber is from 20 wt % to 90 wt % based on a combined weight of the rubber and the thermoplastic olefin, and a concentration of the thermoplastic olefin is from 10 wt % to 80 wt % based on the combined weight of the rubber and the thermoplastic olefin; and', 'a rubber and a thermoplastic olefin, wherein'}, 'a polymeric inner sheath that comprises a thermoplastic vulcanizate (TPV) composition, the TPV composition comprising{'sub': '2', 'wherein the TPV composition has at least one of an air permeability of less than 30 barrers at 23° C. and a COpermeability of less than 40 barrers at 23° C.'}2. The flexible pipe of claim 1 , wherein the TPV composition has a percent tensile retention when exposed to seawater at 125° C. for seven days of 60% or more.3. The flexible pipe of claim 1 , wherein the TPV composition has a percent elongation retention when exposed to seawater at 125° C. for seven days of 40% or more.4. The flexible pipe of claim 1 , wherein the TPV composition has a percent weight change (wt %) in an aqueous solution of 18% calcium chloride and 14% calcium bromide (125° C. claim 1 , aged 60 days) of from about −5 to about +5. ...

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Номер записи: 22

24-01-2019 дата публикации

Rubber Composition and Hose

Номер: US20190024825A1

Автор: Sato Aya

Принадлежит:

An object of the present technology is to provide a rubber composition having excellent oil resistance, and a hose. The present technology relates to a rubber composition including: a polymer containing a butyl rubber and an acrylonitrile butadiene copolymer rubber having an acrylonitrile content of 25 mass % or greater, and a scale-like filler; the rubber composition being used for a hose used to transport a polyol ester and a refrigerant; and a hose. 1. A rubber composition for a hose used to transport a polyol ester and a refrigerant , the rubber composition comprising:a polymer containing a butyl rubber and an acrylonitrile butadiene copolymer rubber having an acrylonitrile content of 25 mass % or greater; anda scale-like filler.2. The rubber composition according to claim 1 , wherein the acrylonitrile butadiene copolymer rubber is at least one type selected from the group consisting of an acrylonitrile butadiene rubber and a blended product of an acrylonitile butadiene rubber and a polyvinyl chloride.3. The rubber composition according to claim 1 , wherein a content of the acrylonitrile content is 6 mass % or greater of a content of the polymer.4. The rubber composition according to claim 1 , wherein the scale-like filler is at least one type selected from the group consisting of talc and mica.5. The rubber composition according to claim 1 , wherein a content of the scale-like filler is from 60 to 180 parts by mass per 100 parts by mass of the polymer.6. A hose that is used to transport a polyol ester and a refrigerant claim 1 , the hose comprising an inner tube formed from the rubber composition described in .7. The rubber composition according to claim 2 , wherein a content of the acrylonitrile content is 6 mass % or greater of a content of the polymer.8. The rubber composition according to claim 2 , wherein the scale-like filler is at least one type selected from the group consisting of talc and mica.9. The rubber composition according to claim 2 , wherein a ...

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Номер записи: 23

23-01-2020 дата публикации

Polymers and process for their manufacture

Номер: US20200024393A1

Автор: Glynn Harrington, James Sherrington, Nathan Allcock, Nigel Slater, Richard Ainsworth

Принадлежит: Victrex Manufacturing Ltd

There is disclosed polymers, a process for manufacturing polymers and uses of the polymers. The polymers are polyaryl ether ketones and the process includes a nucleophilic polycondensation of a bisphenol with an organic dihalide compound in a reaction mixture comprising sodium carbonate and potassium carbonate, in an aromatic sulfone solvent, at a reaction temperature rising to a temperature from 290° C. to 320° C. immediately prior to the addition of a salt to the reaction mixture, wherein the molar ratio of the salt to potassium carbonate is from 6.0 to 10.0. Further organic dihalide compound is added to the reaction mixture wherein the molar ratio of further organic dihalide compound to bisphenol is from 0.009 to 0.035. The resulting reaction mixture is maintained at a temperature at from 290° C. to 320° C. for from 20 to 180 minutes and then the resulting reaction mixture is cooled and the PAEK recovered.

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Номер записи: 24

01-02-2018 дата публикации

Catalyst system and process for the production of polyethylenes

Номер: US20180030176A1

Автор: Eric Johannes Cornelia JANSSEN, Geert Johannes Marinus Meppelder, Johannes Julian Matthias KRUCK, Robert Lap Key Chan

Принадлежит: SABIC Global Technologies BV

The present invention relates to a catalyst system for the production of polyethylene comprising: I) the reaction product obtained by reacting a) a hydrocarbon solution comprising: i. a magnesium-containing compound selected from an organic oxygen-containing magnesium compound and/or a halogen-containing magnesium compound; and ii. an organic oxygen-containing titanium compound wherein the molar ratio of magnesium: titanium is lower than 3:1; and b) an organo aluminium halide having the formula AlR n X 3-n in which R is a hydrocarbon moiety containing 1-10 carbon atoms, X is a halogen and 0<n<3; II) an aluminium compound having the formula AlR′ 3 , in which R′ is a hydrocarbon moiety containing 1-10 carbon atoms; and III) one or more of an electron donor selected from the group of 1,2-dialkoxy hydrocarbon compounds wherein the molar ratio of supplied organo aluminium halide I)b) to supplied titanium in I) a) in the preparation of I) is between 5.0 and 7.0; and the molar ratio of the electron donor III) to the titanium present in the reaction product I) is between 0.05 and 0.40 The production of polyethylene using said catalyst system results in a reduction of formation of ethane and a reduction of the hexane-extractable content of the polyethylene.

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Номер записи: 25

01-02-2018 дата публикации

LOW-SAG POLYETHYLENE PIPES AND METHODS THEREOF

Номер: US20180030252A1

Автор: Horwatt Steven W., Lee Chun D., MAVRIDIS Harilaos, Mehta Sameer D.

Принадлежит: Equistar Chemicals, LP

The present disclosure relates to pipes comprising bimodal high molecular weight high density polyethylene which has been extruded in the presence of one or more organic peroxides that are present in an amount ranging from 30 ppm to 200 ppm. The pipe has an improved long-term hydrostatic strength. Also provided are methods for preparing pipes having these characteristics. 1. An extruded pipe comprising bimodal high molecular weight high density polyethylene{'sup': 3', '3, 'claim-text': wherein the pipe was extruded in the presence of about 30 ppm to about 200 ppm of one or more organic peroxides,', 'wherein the one or more organic peroxides has a half-life of 1 hour at a temperature in the range of about 125° C. to about 145° C., and, 'having a density ranging from about 0.9460 g/cmto about 0.9520 g/cm,'}{'sub': F', 'R', 'F', 'R, 'the extruded pipe has a long-term hydrostatic strength t/tratio of about 1.5 or greater when determined at 23° C. and 12 MPa and/or at 23° C. and 11.5 MPa, where tis the time-to-failure of the pipe and tis the time-to-failure of a comparative pipe which has not been extruded with organic peroxide.'}2. The extruded pipe of claim 1 , wherein the organic peroxide is present in an amount ranging from about 40 ppm to about 150 ppm.3. The extruded pipe of claim 1 , wherein the bimodal high density polyethylene has a porous polypropylene random copolymer.4. The extruded pipe of claim 1 , wherein the long-term hydrostatic strength t/tratio is about 2.0 or greater when determined at 23° C. and 12 MPa and/or at 23° C. and 11.5 MPa.5. The extruded pipe of claim 1 , which has one or more of the following properties:a sag value of about 20 or less;a PENT result of about 500 hours or more; and{'sup': '2', 'a Charpy impact energy of about 10 kJ/mor more.'}6. The extruded pipe of claim 5 , which has one or more of the following properties:{'sup': 3', '3, 'a density in the range of about 0.9470 g/cmto about 0.9510 g/cm;'}a sag value of about 15 or less;a ...

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Номер записи: 26

17-02-2022 дата публикации

RAISED TEMPERATURE RESISTANT PIPES COMPRISING AN ETHYLENE-BASED POLYMER

Номер: US20220049797A1

Автор: AL-SAIF Nasser Abdullah, Banat Yahya, MOKDAD Abdelhamid

Принадлежит:

The present invention relates to a pipe comprising an ethylene-based polymer, wherein the ethylene-based polymer: ⋅ comprises ≥0.10 mol % of units derived from 1-hexene, with regard to the total molar quantity of polymeric units of the ethylene-based polymer; ⋅ has an M/Mas determined in accordance with ASTM D6474 (2012) of ≥2.5 and ≤4.0, preferably of ≥2.5 and ≤3.4; ⋅ has a density as determined in accordance with ASTM D792 (2008) of ≥925 and ≤945 kg/m; and ⋅ in the molecular weight range of log(M) between 4.0 and 5.5, has a comonomer branch content of between 2 and 15 comonomer-derived branches per 1000 carbon atoms in the polymer, as determined via C NMR. Such pipe provides a desirably high long-term strength, as demonstrated by its high strain hardening modulus, as well as desirably high impact strength, as demonstrated by its high Charpy impact strength. Further, such pipe may be compliant with the PE-RT requirements of ISO 22391-1 (2009). For example, such pipe may be used for containing water at temperatures in the range of 40° C. to 80°. 1. Pipe comprising an ethylene-based polymer , wherein the ethylene-based polymer:comprises ≥0.10 mol %, of units derived from 1-hexene, with regard to the total molar quantity of polymeric units of the ethylene-based polymer;{'sub': ['w', 'N'], '#text': 'has a molecular weight distribution M/Mas determined in accordance with ASTM D6474 (2012) of ≥2.5 and ≤4.0;'}{'sup': '3', '#text': 'has a density as determined in accordance with ASTM D792 (2008) of ≥925 and ≤945 kg/m; and'}{'sub': 'w', 'sup': '13', '#text': 'in the molecular weight range of log(M) between 4.0 and 5.5 has a comonomer branch content of between 2 and 15 comonomer-derived branches per 1000 carbon atoms in the polymer, as determined via C NMR.'}2. Pipe according to claim 1 , wherein the ethylene-based polymer has a comonomer incorporation ratio of ≥1.50 claim 1 , wherein the comonomer incorporation ratio is defined as the ratio between the quantity of comonomer ...

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Номер записи: 27

30-01-2020 дата публикации

Process for producing a coated pipe

Номер: US20200032095A1

Автор: Jari Äärilä, Jarmo Kela, Jouni Purmonen

Принадлежит: Borealis AG

The present invention deals with a process for producing a coated pipe. The process comprises (i) homopolymerising ethylene or copolymerising ethylene and an α-olefin comonomer in a first polymerisation step in the presence of a polymerisation catalyst to produce a first ethylene homo- or copolymer having a density of from 940 to 980 kg/m 3 and a melt flow rate MFR 2 of from 1 to 2000 g/10 min; (ii) homopolymerising ethylene or copolymerising ethylene and an α-olefin comonomer in a second polymerisation step in the presence of a first ethylene homo- or copolymer to produce a first ethylene polymer mixture comprising the first ethylene homo- or copolymer and a second ethylene homo- or copolymer, said first ethylene polymer mixture having a density of from 940 to 980 kg/m 3 and a melt flow rate MFR 2 of from 10 to 2000 g/10 min; (iii) copolymerising ethylene and an α-olefin comonomer in a third polymerisation step in the presence of the first ethylene polymer mixture to produce a second ethylene polymer mixture comprising the first ethylene polymer mixture and a third ethylene copolymer, said second ethylene polymer mixture having a density of from 915 to 965 kg/m 3 , preferably from 930 to 955 kg/m 3 and a melt flow rate MFR 5 of from 0.2 to 10 g/10 min; (iv) providing a pipe having an outer surface layer; (v) applying a coating composition onto the pipe outer surface layer to form a top coat layer, wherein the coating composition comprises the second ethylene polymer mixture.

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Номер записи: 28

04-02-2021 дата публикации

Polyethylene Copolymer and Method for Preparing Same

Номер: US20210032449A1

Автор: Hong Daesik, Kim Joongsoo, KWAK Jinyoung, Lee Ki Soo, LEE Ye Jin, Park Jongsang, Shin Eunyoung, SONG Eun Kyoung, You Youngsuk

Принадлежит: LG CHEM, LTD.

The present invention relates to a polyethylene copolymer which has excellent processability and long-term durability, and thus is useful for hollow molding of a pipe or the like. 1. A polyethylene copolymer comprising an ethylene-derived repeating unit and an alpha-olefin-derived repeating unit having 3 or more carbon atoms , and satisfying the following Equation 1 and Equation 2:{'br': None, 'sup': '1/2', 'SCG index≤(carbon number of the alpha olefin)×5\u2003\u2003[Equation 1]'}wherein, in the above Equation 1, {'br': None, 'i': 'c/d', 'Comonomer distribution index (CDI)=\u2003\u2003[Equation 2]'}, 'the SCG index is a value (p/q) obtained by dividing melt index (p) of the polyethylene copolymer measured according to ASTM 1238 (load of 21.6 kg, 190° C.) by comonomer distribution index (q) of the polyethylene copolymer, and'}wherein, in the above Equation 1,the comonomer distribution index (CDI) is calculated by the above Equation 2 based on a molecular weight distribution curve graph, measured by gel permeation chromatography with respect to the polyethylene copolymer, where the x-axis represents the molecular weight of the polymer chain and the y-axis represents the content of the polymer chain,c is short-chain branch (SCB) content (measured by FT-IR) of 2 to 7 carbon atoms per 1000 carbon atoms of the polymer chain, which is a molecular weight value m in which an area (s1) between the molecular weight distribution curve and the x-axis in the section of a≤x≤m is 80% of the area (s2) between the molecular weight distribution curve and the x-axis in the section of a≤x≤b,d is short chain branch (SCB) content (measured by FT-IR) of 2 to 7 carbon atoms per 1000 carbon atoms of the polymer chain, which is a molecular weight value n in which an area (s3) between the molecular weight distribution curve and the x-axis in the section of a≤x≤n is 20% of the area (s4) between the molecular weight distribution curve and the x-axis in the section of a≤x≤b, anda is the minimum ...

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Номер записи: 29

08-02-2018 дата публикации

POLYETHYLENE COMPOSITION SUITABLE FOR PIPE APPLICATIONS

Номер: US20180037725A1

Автор: Tay Amos, Tynys Antti

Принадлежит:

The present invention relates to a polyethylene composition comprising —a base resin comprising (A) a first ethylene homo- or copolymer component having a melt flow rate MFR(2.16 kg, 190° C.) of equal to or more than 130 g/10 min to equal to or less than 300 g/10 min, determined according to ISO 1133, and (B) a second ethylene homo- or copolymer component, —optional carbon black, —optional further polymer component(s) different to the first ethylene homo- or copolymer components (A) and (B), and —optional additive(s); wherein the first ethylene homo- or copolymer component (A) has a lower weight average molecular weight as the second ethylene homo- or copolymer component (B); the polyethylene composition has a melt flow rate MFR(5 kg, 190° C.) of more than 0.60 g/10 min to less than 1.00 g/10 min, determined according to ISO 1133, and a shear thinning index SHIof equal to or more than 10 to equal to or less than 27. The invention further relates to a process for the production of such a polyethylene composition, an article, such as a pipe or pipe fitting comprising such a polyethylene composition and the use of such a polyethylene composition for the production of such an article. 1. Polyethylene composition comprisinga base resin comprising(A) a first ethylene homo- or copolymer component having a melt flow rate MFR2 (2.16 kg, 190° C.) of equal to or more than 130 g/10 min to equal to or less than 300 g/10 min, determined according to ISO 1133, and optional carbon black,', 'optional further polymer component(s) different to the first ethylene homo- or copolymer components (A) and (B), and', 'optional additive(s);, '(B) a second ethylene homo- or copolymer component,'}wherein the first ethylene homo- or copolymer component (A) has a lower weight average molecular weight as the second ethylene homo- or copolymer component (B);the polyethylene composition has a melt flow rate MFR5 (5 kg, 190° C.) of more than 0.60 g/10 min to less than 1.00 g/10 min, determined ...

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Номер записи: 30

08-02-2018 дата публикации

ULTRA HIGHMOLECULAR WEIGHT POLYETHYLENE COMPOSITIONS

Номер: US20180037726A1

Автор: Mehta Veerag

Принадлежит:

Ultrahigh molecular weight, or high molecular weight silicone is added to ultrahigh molecular weight polyethylene polymer during the compounding process. It creates a material composition that is processable by traditional injection molding and extrusion processes that rely on shear as a primary means of melting and helping to shape end products. 1. A composition of matter comprising:{'sup': '6', '(i) 50 to 99 weight percent ultrahigh molecular weight polyethylene having a minimum molecular weight of at least 3×10g/mole and'}(ii) 1 to 50 weight percent of ultrahigh molecular weight silicone polymer having a viscosity of greater than 500,000 cst at room temperature, all based on the total weight of A. and B.2. A composition as claimed in wherein there is also present a stabilizer.3. A composition as claimed in wherein there is also present a colorant.4. A composition as claimed in wherein there is also present a second lubricant in the form of a particle claim 1 , said particle selected from the group consisting of polytetrafluoroethylene claim 1 , boron nitride claim 1 , aramid fiber claim 1 , molybdenum disulfide claim 1 , graphite claim 1 , and carbon fiber.5. A composition of matter comprising:{'sup': '6', '(i) 50 to 99 weight percent ultrahigh molecular weight polyethylene having a minimum molecular weight of at least 3×10g/mole and'}(ii) 1 to 50 weight percent of high molecular weight silicone poiynier having viscosity of greater than 60,000 cst at room temperature, all based on the total weight of A. and B.6. A composition as claimed in wherein there is also present a stabilizer.7. A composition as claimed in wherein there is also present a colorant.6. Extruded fibers extruded from the composition of8. Extruded claim 1 , films extruded from the composition of .9. Extruded sheets extruded from the composition of .10. Extruded tubes extruded from the composition of .11. Medical devices extruded from the composition of .12. Food processing components manufactured ...

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Номер записи: 31

08-02-2018 дата публикации

DRAG REDUCING COMPOSITION

Номер: US20180037729A1

Автор: Czarnecki Richard J., Johnston Ray L., Lane Thomas D., Olechnowicz Michael L., Sun Lu

Принадлежит:

Embodiments of the present disclosure generally relate to a drag reducing suspension capable of dissolving in cold hydrocarbon fluids at usage level. In one embodiment, the drag reducing composition comprises a drag reducing polymer, a partitioning agent comprises a one or more of a coal-tar resin, a C5 aliphatic petroleum resin, a C9 aromatic petroleum resin, C5/C9 aliphatic/aromatic petroleum resin, a cycloaliphatic diene-based petroleum resin, a pure monomer resin, a terpene resin, a terpene phenol resin, a styrenated terpene resin, a rosin resin, a rosin resin derivative, one or more of an alkylphenol resin, a modified alkylphenol resin, and fully or partially hydrogenated form thereof, and suspending fluid medium. The partitioning agent has a good solubility (greater than 8 ppm) in a hydrocarbon stream, such as in a cold refined hydrocarbon stream, for example a diesel stream at a temperature of 0° C. or less. 1. A drag reducing composition , comprising:a drag reducing polymer;a partitioning agent comprising one or more of a coal-tar resin, a C5 aliphatic petroleum resin, a C9 aromatic petroleum resin, C5/C9 aliphatic/aromatic petroleum resin, a cycloaliphatic diene-based petroleum resin, a pure monomer resin, a terpene resin, a terpene phenol resin, a styrenated terpene resin, a rosin resin, a rosin resin derivative, one or more of an alkylphenol resin, a modified alkylphenol resin, and fully or partially hydrogenated form thereof; anda suspending fluid medium.2. The composition of claim 1 , wherein the drag reducing polymer comprises polyalphaolefin having olefins containing from 2 to 40 carbon atoms.3. The composition of claim 1 , wherein the partitioning agent is a hydrocarbon resin comprising the one or more of a coal-tar resin claim 1 , C5 aliphatic petroleum resin claim 1 , C9 aromatic petroleum resin claim 1 , C5/C9 aliphatic/aromatic petroleum resin claim 1 , cycloaliphatic diene-based petroleum resin claim 1 , pure monomer resin claim 1 , terpene ...

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Номер записи: 32

15-02-2018 дата публикации

Polymers with Improved Processability for Pipe Applications

Номер: US20180044454A1

Автор: Ashish M. Sukhadia, Paul J. DesLauriers, QING Yang, Vivek Rohatgi, Yongwoo Inn

Принадлежит: Chevron Phillips Chemical Co LP

A crosslinked metallocene-catalyzed polyethylene copolymer having a higher molecular weight (HMW) component and lower molecular weight (LMW) component wherein the HMW component is present in an amount of from about 10 wt. % to about 30 wt. % and wherein the LMW component is present in an amount of from about 70 wt. % to about 90 wt. %.

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Номер записи: 33

03-03-2022 дата публикации

CROSSLINKABLE RUBBER COMPOSITION, ACRYLIC RUBBER, AND CURED RUBBER PRODUCT

Номер: US20220064430A1

Автор: Miyauchi Toshiaki, NAKANO Tatsuya

Принадлежит: Denka Company Limited

A crosslinkable rubber composition, comprising: an acrylic rubber; an amine compound represented by the following formula (A-1); a carbon black; and a crosslinking agent, wherein the acrylic rubber has acrylate units and carboxy group-containing monomer units, and has 0.5 to 10 parts by mass of ethylene units with respect to 100 parts by mass of the acrylate units and/or 5 to 20 parts by mass of alkyl methacrylate units with respect to 100 parts by mass of the acrylate units,

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Номер записи: 34

25-02-2016 дата публикации

Polypropylene composition with improved impact resistance for pipe applications

Номер: US20160053034A1

Автор: Cristian HEDESIU, Kauno Alastalo

Принадлежит: Abu Dhabi Polymers Co Ltd Borouge LLC, Borealis AG

The present invention relates to a polypropylene composition comprising a multimodal propylene random copolymer with at least one comonomer selected from alpha-olefins with 2 or 4 to 8 carbon atoms, wherein the polypropylene composition has a melt flow rate MFR 2 (2.16 kg, 230° C.) of 0.05 to 1.0 g/10 min, determined according to ISO 1133, a polydispersity index (PI) of 2.0 to 7.0, and a Charpy Notched Impact Strength at 0° C. of more than 4.0 kJ/m 2 , determined according to ISO 179/1eA:2000 using notched injection moulded specimens, a process for producing said polypropylene composition, an article comprising said polypropylene composition and the use of said polypropylene composition for the production of an article.

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Номер записи: 35

10-03-2022 дата публикации

PROCESS FOR PREPARATION OF POLYETHYLENE

Номер: US20220073714A1

Автор: DESHPANDE Sanjeev, GUZMAN-CARRAZCO Job Daniel, MATTHEIJ Victor, TAMMADONI Maryam

Принадлежит:

The invention relates to a process for the preparation of an ethylene-based polymer, the process comprising: a) suspension polymerizing ethylene and an optional comonomer to obtain a suspension () comprising the ethylene-based polymer and wax in a suspension medium comprising a diluent, b) separating the ethylene-based polymer () from the suspension () to obtain a liquid stream () comprising the diluent and the wax, c) feeding at least part of the liquid stream () to a forced circulation reboiler (Q) for separating the diluent and the wax to obtain an evaporated stream () comprising the diluent, wherein the evaporated stream () is recycled to step a). 1. A process for the preparation of an ethylene-based polymer , the process comprising:{'b': '11', '#text': 'a) suspension polymerizing ethylene and an optional comonomer to obtain a suspension () comprising the ethylene-based polymer and wax in a suspension medium comprising a diluent,'}{'b': ['13', '11', '12'], '#text': 'b) separating the ethylene-based polymer () from the suspension () to obtain a liquid stream () comprising the diluent and the wax,'}{'b': ['25', '27', '27'], '#text': 'c) feeding at least part of the liquid stream () to a forced circulation reboiler (Q) for separating the diluent and the wax to obtain an evaporated stream () comprising the diluent, wherein the evaporated stream () is recycled to step a).'}2. The process according to claim 1 , wherein the ethylene-based polymer is selected from an ethylene homopolymer and an ethylene copolymer of ethylene and C3-C12 α-olefin.3. The process according to claim 1 , wherein the polymerization in step a) is carried out at pressures of 0.1 to 20 MPa and temperatures of 40° C. to 130° C.4. The process according to claim 1 , wherein step a) is performed in in a series of polymerization reactors comprising at least a first polymerization reactor (A) and a second polymerization reactor (H) claim 1 , wherein the suspension subjected to step b) is obtained in ...

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Номер записи: 36

10-03-2022 дата публикации

THERMOPLASTIC RESIN COMPOSITION FOR REFRIGERANT TRANSPORTING PIPING, AND METHOD FOR PRODUCING SAME

Номер: US20220073740A1

Автор: Tomoi Shusaku

Принадлежит:

Provided is a thermoplastic resin composition for refrigerant transporting piping having high barrier properties, flexibility, and good extrusion processability. The thermoplastic resin composition for refrigerant transporting piping is composed of: a matrix containing a thermoplastic resin; and a domain containing a rubber dispersed in the matrix, and is characterized in that the thermoplastic resin has a melting point of 150° C. or higher, the rubber is a butyl-based rubber or an olefin-based rubber, the matrix contains a viscosity stabilizer, the thermoplastic resin composition contains a processing aid and at least one selected from the group consisting of a phenylenediamine-based anti-aging agent, a quinoline-based anti-aging agent, and a trihydric alcohol having a triazine skeleton, and at least a portion of the rubber is crosslinked. 1. A thermoplastic resin composition for refrigerant transporting piping , wherein the thermoplastic resin composition comprises a matrix containing a thermoplastic resin , and a rubber-containing domain dispersed in the matrix; the thermoplastic resin has a melting point of not less than 150° C.; the rubber is a butyl-based rubber or olefin-based rubber; the matrix contains a viscosity stabilizer; the thermoplastic resin composition comprises at least one selected from the group consisting of a phenylenediamine-based antioxidant , quinoline-based antioxidant , and trihydric alcohol having a triazine skeleton , and a processing aid; and at least part of the rubber is cross-linked.2. The thermoplastic resin composition for refrigerant transporting piping according to claim 1 , wherein the viscosity stabilizer is at least one selected from the group consisting of a divalent metal oxide claim 1 , an ammonium salt claim 1 , and a carboxylic acid salt claim 1 , and the content of the viscosity stabilizer in the matrix is 0.5 to 30% by weight.3. The thermoplastic resin composition for refrigerant transporting piping according to claim ...

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Номер записи: 37

03-03-2016 дата публикации

An ethylene/alpha-olefin interpolymer composition

Номер: US20160060373A1

Автор: Amaia Bastero, Jian Wang, Mehmet Demirors

Принадлежит: Dow Global Technologies LLC

An ethylene/alpha-olefin interpolymer composition suitable for pipe applications prepared via solution polymerization process, and pipes made therefrom. The ethylene/alpha-olefin interpolymer composition suitable for pipe applications according to the present invention comprises greater than 80 percent by weight of units derived from ethylene and 20 percent or less by weight of units derived from one or more alpha olefin co-monomers, wherein said ethylene/alpha-olefin interpolymer has a density in the range of from 0.925 to 0.935 g/cm 3 , a melt index I 2 in the range of from 0.3 to 1.0 g/10 minutes, a melt flow ratio I 10 /I 2 in the range of from 7.9 to 11, a melt strength in the range of from 3 to 10 cN, a DSC heat curve having a melting peak temperature in the range of from 120 to 130° C., a crystallinity in the range of from 50 to 70 percent, a 1% flexural modulus in the range from 350 to 600 MPa, and a zero shear viscosity ratio (ZSVR) in the range of from 2 to 10.

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Номер записи: 38

03-03-2016 дата публикации

Multimodal polypropylene composition for pipe applications

Номер: US20160060441A1

Автор: Cristian HEDESIU, Kauno Alastalo

Принадлежит: Abu Dhabi Polymers Co Ltd Borouge LLC, Borealis AG

A multimodal propylene copolymer composition suitable for moulding and pipe applications comprising a multimodal propylene copolymer (U).

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Номер записи: 39

03-03-2016 дата публикации

Metallic pipe having a hydrolysis-resistant layer of a polyamide moulding composition

Номер: US20160060459A1

Автор: Andreas Dowe, Andreas Pawlik, Franz-Erich Baumann, Horst Beyer, Juergen Franosch

Принадлежит: EVONIK DEGUSSA GmbH

A metallic pipe for contact with a hydrolyzing medium provides longer operating times and improved high temperature resistance. The pipe contains a layer of a polyamide moulding composition containing at least 50% by weight of polyamide content containing: I) 60 to 98 parts by weight of a polyamide which contains 10 to 70 meq/kg of a terminal carboxy group and has a relative solution viscosity η rel of at least 1.90, and II) 2 to 40 parts by weight of a polyamine-polyamide graft copolymer produced from: a) 0.5 to 25% by weight, based on the entire monomer mixture, of a polyamine having at least 4 nitrogen atoms, and b) 75 to 99.5% by weight, based on the entire monomer mixture, of polyamide-forming monomers selected from lactams, ω-aminocarboxylic acids and/or equimolar combinations of diamine and dicarboxylic acid, with the proviso that the amino group concentration of the graft copolymer is in the range from 100 to 2500 meq/kg, wherein the sum of the parts by weight of I) and II) is 100.

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Номер записи: 40

04-03-2021 дата публикации

Superabsorbent Polymer Capsules and Bio-Mineralization Process for the Mitigation of Corrosion Under Insulation as smart packaging materials

Номер: US20210060899A1

Автор: Ali Al Shehri, Aziz Fihri, Haleema Alamri, Husnul MAAB, Layla Alabdrabalnabi

Принадлежит: Saudi Arabian Oil Co

A composite insulating material is provided. In one or more configurations the composite insulating material includes one or more active or responsive elements that mitigate corrosion under insulation (CUI). In a further aspect of the present invention, one or more active components of a composite insulation material are provided that dynamically generate an insoluble barrier within an insulating material through a bio-mineralization process.

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Номер записи: 41

04-03-2021 дата публикации

Method For Preparing Polyolefin Using Supported Hybrid Metallocene Catalyst

Номер: US20210061930A1

Автор: Bog Ki HONG, Chang Woan HAN, Jin Young Park, Si Jung Lee, Soung Hun YOO, Sun Mi Kim, Sunghyun Park, Yi Young Choi

Принадлежит: LG Chem Ltd

The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum conent in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.

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Номер записи: 42

04-03-2021 дата публикации

Fluoropolymer Compositions Including Nanoparticles Functionalized With Functional Fluorinated Silane Compounds

Номер: US20210061983A1

Автор: Baran, Guerra Miguel A., JR. Jimmie R., Mitchell Michael H.

Принадлежит:

Curable compositions that include at least one fluorinated elastomeric gum; and nanoparticles functionalized with at least one compound according to formula (I): X—(CF)—(O)—(CH)—Si—Yw X is Br, I, CF═CF—O—, CH═CHCH—O—, CH═CHCH—, or CH═CH—, n is an integer from 2 to 8, m is an integer from 2 to 5, p is 0 or 1, and Y is Cl— or —OR, where R is a linear or branched alkyl having 1 to 4 carbon atoms. In some embodiments, Y is —O(CH)CH, where x is an integer from 0 to 3. 1. A curable composition comprising:at least one fluorinated elastomeric gum; and {'br': None, 'sub': 2', 'n', 'p', '2', 'm', '3, 'X—(CF)—(O)—(CH)—Si—Y\u2003\u2003(I)'}, 'nanoparticles functionalized with at least one functional fluorinated silane compound according to formula I{'sub': 2', '2', '2', '2', '2', '2, 'claim-text': n is an integer from 2 to 8,', 'm is an integer from 2 to 5,', 'p is 0 or 1, and', 'Y is Cl— or —OR, where R is a linear or branched alkyl having 1 to 4 carbon atoms., 'wherein X is Br, I, CF═CF—O—, CH═CHCH—O—, CH═CHCH—, or CH═CH—,'}2. The curable composition of claim 1 , wherein Y is —O(CH)CH claim 1 , where x is an integer from 0 to 3.3. The curable composition of claim 1 , wherein the fluorinated elastomeric gum comprises at least 0.05% by weight of a cure site at most 5% by weight of the cure-site.4. The curable composition of claim 3 , wherein the cure site comprises at least one of bromine claim 3 , iodine claim 3 , nitrile claim 3 , or combinations thereof.5. The curable composition of claim 1 , wherein the fluorinated elastomeric gum is partially fluorinated.6. The curable composition of claim 1 , wherein the fluorinated elastomeric gum is derived from at least one of TFE claim 1 , HFP claim 1 , VDF claim 1 , a fluorinated vinyl ether monomer claim 1 , a fluorinated allyl ether monomer claim 1 , or combinations thereof.7. The curable composition of claim 1 , wherein the fluorinated elastomeric gum comprises at least one of: (i) copolymers comprising TFE and a perfluoroalkyl ...

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Номер записи: 43

20-02-2020 дата публикации

Multimodal polyethylene pipe

Номер: US20200056023A1

Автор: Natthaporn SUCHAO-IN, Warachad Klomkamol

Принадлежит: SCG Chemicals PCL, Thai Polyethylene Co Ltd

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.

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Номер записи: 44

11-03-2021 дата публикации

Polyethylene composition for pipe applications with improved sagging properties

Номер: US20210070969A1

Автор: Antti Tynys, Jarmo Harjuntausta, Mohana Murali ADHYATMABHATTAR

Принадлежит: Borealis AG

The present invention relates to a polyethylene composition comprising, a base resin (A) comprising a copolymer of ethylene and at least one comonomer selected from alpha-olefins having from three to twelve carbon atoms, wherein the ethylene copolymer comprises a low molecular weight component (A-1) and a high molecular weight component (A-2) with the low molecular weight component (A-1) having a lower weight average molecular weight than the high molecular weight component (A-2), (B) carbon black in an amount of 1.0 to 10 wt % based on the total amount of the polyethylene composition, and (C) optional further additives other than carbon black.

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Номер записи: 45

07-03-2019 дата публикации

Pipe produced with a polymer composition comprising a polyethylen

Номер: US20190071561A1

Автор: Henrica Norberta Alberta Maria Steenbakkers-Menting, Mark Johannes Boerakker, Patrick Elisabeth Luc Voets, Sarah Van Mierloo

Принадлежит: SABIC Global Technologies BV

The invention relates a pipe for the transport of water with improved resistance to chlorinated disinfectants. The pipe is produced with a polymer composition comprising polyethylene and zinc sulfide.

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Номер записи: 46

24-03-2022 дата публикации

FLUORINE-CONTAINING THERMOPLASTIC ELASTOMER COMPOSITION

Номер: US20220089853A1

Автор: Bassi Mattia, Fantoni Matteo, Ieva Eliana, Mirenda Marco, Sanguineti Aldo

Принадлежит:

The present invention relates to a fluorine-containing thermoplastic elastomer composition comprising a continuous thermoplastic fluorocarbon polymer phase and a dispersed fluorine-containing elastomer phase which are useful, for example, in automotive fuel lines. 115-. (canceled)16. A thermoplastic elastomer composition [composition (C)] comprising a continuous thermoplastic fluoropolymer phase and a dispersed fluoroelastomer phase , said composition comprising:a. at least one thermoplastic fluoropolymer [polymer (F)], said polymer (F) comprising:from 60% to 80% by moles of recurring units derived from tetrafluoroethylene (TFE),from 15% to 35% by moles of recurring units derived from vinylidene fluoride (VDF), and{'claim-text': {'br': None, 'sub': ['2', 'f'], '#text': 'CF═CF—O—R\u2003\u2003(I)'}, '#text': 'from 1% to 5% by moles of recurring units derived from at least one perfluoroalkylvinylether (PAVE) of formula (I):'}{'sub': ['f', '1', '6', '1', '6'], '#text': 'wherein Ris a C-Calkyl group or a C-C(per)fluoroalkyl group,'}wherein the molar amounts of said recurring units are relative to the total moles of recurring units in said polymer (F); andb. at least one (per)fluoroelastomer [elastomer (A)].17. The composition (C) of claim 16 , wherein the perfluoroalkylvinylether (PAVE) of formula (I) is selected from the group consisting of perfluoromethylvinylether (PMVE) of formula CF═CF—O—CF claim 16 , perfluoroethylvinylether (PEVE) of formula CF═CF—O—CF—CFand perfluoropropylvinylether (PPVE) of formula CF═CF—O—CF-CF—CF.20. The composition (C) according claim 17 , wherein elastomer (A) is a vinylidene fluoride/hexafluoropropoylene copolymer.21. The composition (C) according to claim 17 , wherein elastomer (A) is a vinylidene fluoride/hexafluoropropoylene/tetrafluorethylene copolymer.22. The composition (C) according to claim 16 , which further contains at least one additional ingredient selected from the group consisting of extender oils claim 16 , synthetic ...

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Номер записи: 47

24-03-2022 дата публикации

TUBULAR ASSEMBLY COMPRISING LOW DENSITY, LOW THERMAL CONDUCTIVITY LOW THERMAL EFFUSIVITY POLYARYLENE SULFIDE FOAM

Номер: US20220090726A1

Автор: BEITZEL Lee, EDWARDS Gerald, Gupta Sahil, Jansen John

Принадлежит:

A polyarylene sulfide (PAS) foam layer that circumscribes a hollow inner tube and may have a 50% or greater density reduction relative to the density of an un-foamed PAS polymer material and/or a 50% or greater thermal conductivity reduction relative to the thermal conductivity of an un-foamed PAS polymer material and/or 50% or greater thermal effusivity reduction relative to the thermal effusivity of an un-foamed PAS polymer material. The PAS foam layer may have a low density (e.g., less than 0.67 g/cc) and/or a low thermal conductivity (e.g., anywhere from 0.017 W/(m-K) to 0.145 W/(m-K)) and/or a low thermal effusivity (e.g., less than 316 Ws/m/K, optionally anywhere from 38 Ws/m/K to 316 Ws/m/K) even at high temperatures (e.g., above 400 degrees Fahrenheit (° F.) (about 204 degrees Celsius (° C.)). Such a PAS foam layer may have characteristics appropriate for use as part of a steam hose. 1. A tubular assembly comprising:a tubular first member having an outer surface and an inner surface, the inner surface defining an innermost surface of the assembly; anda tubular second member surrounding the outer surface of the first member, wherein the second member comprises a foamed polyphenylene sulfide polymer material having a foamed density and a foamed thermal effusivity that is foamed from a mixture of a foaming agent and an un-foamed polyphenylene sulfide polymer material having polymer chains that are branched or cross-linked, the polyphenylene sulfide having an un-foamed density and an un-foamed thermal effusivity,wherein the foamed polyphenylene sulfide polymer material has an average cell diameter of at least 100 μm,wherein the foamed density is less than about 50% of the un-foamed density; andwherein the foamed thermal effusivity is less than about 50% of the un-foamed thermal effusivity.24.-. (canceled)5. The tubular assembly of claim 1 , wherein the foaming agent comprises between about 0.1-5% by total weight of the foaming agent and the polyphenylene sulfide ...

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Номер записи: 48

05-06-2014 дата публикации

Heat resistant hydrocarbon elastomer compositions

Номер: US20140155537A1

Автор: Steven R. Oriani

Принадлежит: EI Du Pont de Nemours and Co

Disclosed herein is a curable composition comprising ethylene copolymer elastomer, a relatively small amount of a polyamide, and optionally a compatibilizer wherein curable composition demonstrates improved heat aging properties without the loss of tensile strength. Also disclosed is the process for making such curable ethylene copolymer elastomer.

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Номер записи: 49

18-03-2021 дата публикации

PIPE WITH HIGH ABRASION RESISTANCE

Номер: US20210079203A1

Автор: Guo Kai, Liu Xiqiang, SHI Hongtao, Soliman Maria, WAN Dong, Xing Dongbo

Принадлежит:

A pipe- or tube-shaped article having an innermost layer, wherein the innermost layer has a thickness of 0.001 to 100 mm and comprises a polyolefin composition comprising a) a propylene-ethylene copolymer, wherein the amount of repeat units derived from ethylene is 1 to 20 wt % based on the weight of the propylene-ethylene copolymer and wherein the propylene-ethylene copolymer has a density of at most 0.9 g/cm3 as determined by ASTM D1505 and b) an olefin polymer selected from high-density polyethylene HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and combinations thereof. 1. A pipe- or tube-shaped article having an innermost layer , wherein the innermost layer has a thickness of 0.001 to 100 mm and comprises a polyolefin composition comprising{'sup': '3', 'a) a propylene-ethylene copolymer, wherein the amount of repeat units derived from ethylene is 1 to 20 wt % based on the weight of the propylene-ethylene copolymer and wherein the propylene-ethylene copolymer has a density of at most 0.9 g/cmas determined by ASTM D1505 and'}b) an olefin polymer selected from high-density polyethylene (HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and combinations thereof.2. The article according to claim 1 , wherein the amount of the propylene-ethylene copolymer a) is in the range from ≥40 to ≤90 wt % based on the total amount of the propylene-ethylene copolymer a) and the olefin polymer b).3. The article according to claim 1 , wherein the tensile stress of the polyolefin composition is at least 10 MPa and/or the elongation at break is at least 430% as measured according to ASTM D638.4. The article according to claim 1 , wherein the abrasion weight loss of the polyolefin composition is at least less than 2%.5. The article according to claim 1 , wherein the Vicat temperature of the polyolefin composition is at least 40° C. as measured according to ASTM D1525 (10N/50 C/hrs).6. The article according to claim 1 , wherein the amount of repeat ...

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Номер записи: 50

18-03-2021 дата публикации

Barrier Layer for Hoses

Номер: US20210080035A1

Автор: Bangert Hartmut, Borvitz Dieter, Herrmann Wolfram, Jungrichter Frank, Wietzke Steffen

Принадлежит: ContiTech Schlauch GmbH

The invention relates to a hose having at least one barrier layer inner layer and an outer layer, wherein the barrier layer is obtainable by extrusion of a mixture comprising a) at least one thermoplastic fluoropolymer, b) at least one fluororubber and a crosslinking agent and/or at least one fluororubber elastomer and c) at least one carbon filler selected from carbon black, in particular conductivity carbon black, graphene, carbon nanofillers, in particular carbon nanotubes, carbon nanohorns, or a combination thereof in an amount of 0.05% by weight to 20% by weight of the carbon filler(s), or irradiated PTFE, and vulcanization. The hose exhibits a high fuel, diesel and oil stability and dynamic capability. 115.-. (canceled)17. The hose as claimed in claim 16 , wherein the at least one carbon filler is selected from the group consisting of conductivity carbon black claim 16 , graphene claim 16 , carbon nanotubes claim 16 , carbon nanohorns claim 16 , and any combination thereof.18. The hose as claimed in claim 16 , wherein the at least one carbon filler is conductivity carbon black claim 16 , and the mixture contains 1% to 20% by weight claim 16 , of the conductivity carbon black.19. The hose as claimed in claim 18 , wherein the at least one carbon filler is conductivity carbon black claim 18 , and the mixture contains 2% to 10% by weight claim 18 , of the conductivity carbon black.20. The hose as claimed in claim 19 , wherein the at least one carbon filler is conductivity carbon black claim 19 , and the mixture contains 3% to 9% by weight claim 19 , of the conductivity carbon black.21. The hose as claimed in claim 16 , wherein the at least one carbon filler is selected from the group consisting of graphene claim 16 , carbon nanofillers claim 16 , and a combination thereof claim 16 , and the mixture contains from 0.05% to 10% by weight claim 16 , of the at least one carbon filler.22. The hose as claimed in claim 21 , wherein the at least one carbon filler is ...

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Номер записи: 51

14-03-2019 дата публикации

RESIN COMPOSITION, AND MOLDED ARTICLE AND PIPE FORMED FROM SAID COMPOSITION

Номер: US20190077949A1

Автор: Ito Toshiyuki, Kanaya Hirotaka, Kawabe Kuniaki, Takahashi Yosuke

Принадлежит: Mitsui Chemicals, Inc.

The purpose of the present invention is to provide: a vinyl chloride resin composition having exceptional impact resistance, processability, and heat resistance. The present invention provides: a resin composition that contains 3-15 parts by mass of a rubber-based impact-absorbing material and 0.1-10 parts by mass of a modified olefin wax per 100 parts by mass of a vinyl chloride resin. This resin composition satisfies the following requirements (I)-(III). (I) The chlorine content of the vinyl chloride resin is 55-75% by mass. (II) The glass transition temperature (Tg) in differential scanning calorimetry (DSC) of the rubber-based impact-absorbing material (B) is 0° C. or lower. (III) The modified olefin wax contains at least one polar group selected from halogens and carboxylic acid derivatives, and the polar group content is within the range of 0.1-50% by mass. 1. A resin composition , comprising 3 to 15 parts by mass of rubber-based impact absorber (B) and 0.1 to 10 parts by mass of modified olefin wax (C) with respect to 100 parts by mass of vinyl chloride-based resin (A) , and satisfying the following requirements (I) to (III):(I) the vinyl chloride-based resin (A) has a chlorine content of 55 to 75 mass %;(II) the rubber-based impact absorber (B) has a glass transition temperature (Tg), measured by differential scanning calorimetry (DSC), of 0° C. or less; and(III) the modified olefin wax (C) contains at least one polar group selected from a halogen and a carboxylic acid derivative, a content of the polar group being in a range of 0.1 to 50 mass %.2. The resin composition according to claim 1 , wherein the chlorine content in the vinyl chloride-based resin (A) is 60 to 75 mass % in the requirement (I).3. The resin composition according to claim 1 , wherein the rubber-based impact absorber (B) contains a rubber component selected from a butadiene rubber claim 1 , an acrylic rubber and a silicone rubber.4. The resin composition according to claim 1 , wherein the ...

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Номер записи: 52

26-03-2015 дата публикации

MOULDING COMPOUND BASED ON A PARTIALLY AROMATIC COPOLYAMIDE

Номер: US20150086737A1

Автор: Baumann Franz-Erich, BEUTH Reinhard, Geerkens Sebastian, Haeger Harald, NITSCHE Jasmin

Принадлежит: Evonik Industries AG

A moulding composition, comprising at least 40 wt. % of the following components: 1. A moulding composition , comprising at least 40 wt. % of the following components:a) 60 to 99 parts by wt. of a partially aromatic copolyamide which comprises as polymerized monomer units:I. 30 to 90 mol % of a combination of hexamethylenediamine and terephthalic acid; andII. 70 to 10 mol % of a combination of hexamethylenediamine and a linear aliphatic dicarboxylic acid with 8 to 19 C atoms;wherein the mol % values relate to the sum of I and II and wherein at most 20% of the hexamethylenediamine can be replaced by the equivalent quantity of another diamine and/or wherein at most 20% of the terephthalic acid can be replaced by the equivalent quantity of another aromatic dicarboxylic acid and/or 1,4-cyclohexanedicarboxylic acid and/or wherein at most 20% of the repeating units of hexamethylenediamine and linear aliphatic dicarboxylic acid can be replaced respectively by the equivalent number of units of a copolymerized lactam or co-aminocarboxylic acid with 6 to 12 C atoms; andb) 40 to 1 parts by wt. of an olefinic copolymer comprising as polymerized monomer units:i) 35 to 94.9 wt. % of ethene-based monomer units,ii) 5 to 65 wt. % of monomer units based on a 1-alkene with 4 to 8 C atoms,iii) 0 to 10 wt. % of monomer units based on an olefin different from i) and ii), andiv) 0.1 to 2.5 wt. % of monomer units based on an aliphatically unsaturated dicarboxylic acid anhydride,whereinthe sum of the wt. % values of i), ii), iii) and iv) is 100%, andthe sum of the parts by wt. of a) and b) is 100.2. The moulding composition according to claim 1 ,{'sub': 'm', 'wherein a crystallite melting point Tof the copolyamide a) is from 240° C. to 300° C. when determined according to ISO 11357, measured during the 2nd heating stage.'}3. The moulding composition according to claim 1 ,wherein a ratio of amino end groups to a sum of amino and carboxyl end groups of the partially aromatic copolyamide is ...

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Номер записи: 53

26-03-2015 дата публикации

MOULDING COMPOUND BASED ON A PARTIALLY AROMATIC COPOLYAMIDE

Номер: US20150086738A1

Автор: Baumann Franz-Erich, BEUTH Reinhard, Geerkens Sebastian, Haeger Harald, NITSCHE Jasmin

Принадлежит: Evonik Industries AG

A moulding composition, comprising at least 40 wt. % of the following components: 1. A moulding composition , comprising at least 40 wt. % of the following components:a) 60 to 99 parts by wt. of a partially aromatic copolyamide which comprises as polymerized monomer units:I. 30 to 90 mol % of a combination of hexamethylenediamine and terephthalic acid; andII. 70 to 10 mol % of a lactam and/or of an ω-aminocarboxylic acid with 11 or 12 C atoms,wherein the mol % values relate to the sum of I and II and wherein at most 20% of the hexamethylenediamine can be replaced by the equivalent quantity of another diamine and/or wherein at most 20% of the terephthalic acid can be replaced by the equivalent quantity of another aromatic dicarboxylic acid and/or 1,4-cyclohexanedicarboxylic acid and/or wherein at most 20% of the repeating units of a lactam and/or of an ω-aminocarboxylic acid with 11 or 12 C atoms can be replaced respectively by the equivalent number of units which are derived from a combination of hexamethylenediamine and a linear aliphatic dicarboxylic acid with 8 to 19 C atoms and/or caprolactam;b) 40 to 1 parts by wt. of an olefinic copolymer comprising as polymerized monomer units:i) 35 to 94.9 wt. % of ethene-based monomer units,ii) 5 to 65 wt. % of monomer units based on a 1-alkene with 4 to 8 C atoms,iii) 0 to 10 wt. % of monomer units based on an olefin different from i) and ii), andiv) 0.1 to 2.5 wt. % of monomer units based on an aliphatically unsaturated dicarboxylic acid anhydride,whereina sum of the weight % values of i), ii), iii) and iv) is 100%, andthe sum of the parts by wt. of a) and b) is 100.2. The moulding composition according to claim 1 ,{'sub': 'm', 'wherein a crystallite melting point Tof the copolyamide a) is from 240° C. to 300° C. when determined according to ISO 11357, measured during the 2nd heating stage.'}3. The moulding composition according to claim 1 ,wherein a ratio of amino end groups to a sum of amino and carboxyl end groups of ...

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Номер записи: 54

31-03-2022 дата публикации

Bimodal Polyethylene Resins and Pipes Produced Therefrom

Номер: US20220098342A1

Автор: Inn Yongwoo, LANIER Elizabeth M., Rohatgi Vivek, Sukhadia Ashish M.

Принадлежит:

Disclosed herein are ethylene-based polymers generally characterized by a density of at least 0.94 g/cm, a high load melt index from 4 to 20 g/10 min, a zero-shear viscosity at 190° C. from 20,000 to 400,000 kPa-sec, and a relaxation time at 190° C. from 225 to 3000 sec. These ethylene polymers can be produced by peroxide-treating a broad molecular weight distribution Ziegler-catalyzed resin, and can be used in large diameter, thick wall pipes and other end-use applications. 120-. (canceled)21. An ethylene polymer having:{'sup': '3', 'a density in a range from about 0.94 to about 0.955 g/cm;'}{'sub': '21', 'a HLMI (I) in a range from about 5 to about 15 g/10 min;'}a ratio of Mw/Mn in a range from about 13 to about 38;{'sub': '0', 'a zero-shear viscosity (η) at 190° C. in a range from about 25,000 to about 250,000 kPa-sec; and'}{'sub': 'η', 'a relaxation time (τ) at 190° C. in a range from about 250 to about 2500 sec.'}22. The polymer of claim 21 , wherein:the ethylene polymer comprises an ethylene/1-butene copolymer, an ethylene/1-hexene copolymer, an ethylene/1-octene copolymer, an ethylene homopolymer, or a combination thereof; andthe ethylene polymer further comprises an additive selected from an antioxidant, an acid scavenger, an antiblock additive, a slip additive, a colorant, a filler, a processing aid, a UV inhibitor, or any combination thereof.23. An article of manufacture comprising the polymer of .24. The polymer of claim 22 , wherein:{'sup': '3', 'the density is in a range from about 0.942 to about 0.952 g/cm;'}{'sub': '0', 'the zero-shear viscosity (η) at 190° C. is in a range from about 30,000 to about 215,000 kPa-sec; and'}{'sub': 'η', 'the relaxation time (τ) at 190° C. is in a range from about 300 to about 2000 sec.'}25. The polymer of claim 22 , wherein the ratio of Mw/Mn is in a range from about 16 to about 37.26. The polymer of claim 25 , wherein the ethylene polymer has a Mn in a range from about 10 claim 25 ,200 to about 16 claim 25 ,100 g/mol. ...

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Номер записи: 55

31-03-2022 дата публикации

Crosslinked Polyethylene Pipe Having Excellent Physical Properties

Номер: US20220098393A1

Автор: Cho Sol, CHOI Yi Young, KIM Yeonsoo, LEE Hyunsup, Lee Myunghan

Принадлежит: LG CHEM, LTD.

The present disclosure relates to a crosslinked polyethylene pipe having excellent physical properties. The crosslinked polyethylene pipe according to the present disclosure has optimized the degree of crosslinking and storage modulus by finding out the optimum physical property range between the degree of crosslinking and the storage modulus which have a mutual trade-off relationship, whereby the crosslinked polyethylene pipe according to the present disclosure has excellent long-term durability and short-term pressure resistance, and thus can be applied to various fields requiring these physical properties. 1. A crosslinked polyethylene pipe which is produced by a crosslinking reaction of a polyethylene and a crosslinking agent , andsatisfies: a storage modulus (E′) at 95° C. of 100 to 115 MPa when the dynamic viscoelasticity is measured under the conditions of vibrational frequency of 1 Hz and strain of 0.1%; anda degree of crosslinking of 80 to 90% as measured according to KS M ISO 10147.2. The crosslinked polyethylene pipe according to claim 1 , wherein the polyethylene has an integration value in a region where log Mw value is 5.5 or more claim 1 , of 18 to 23% relative to the total integration value claim 1 , in a GPC curve graph in which the x axis is log Mw and the y axis is dw/d log Mw.3. The crosslinked polyethylene pipe according to claim 1 , wherein the polyethylene has a polydispersity index (PDI claim 1 , Mw/Mn) of 3.7 to 4.8.4. The crosslinked polyethylene pipe according to claim 1 , wherein the polyethylene has a density of 0.940 g/cmor more and 0.960 g/cmor less as measured according to ASTM D792.5. The crosslinked polyethylene pipe according to claim 1 , wherein the polyethylene has a melt index (MI) of 1 to 10 g/10 min as measured at a temperature of 190° C. under a load of 21.6 kg according to the ASTM D1238 standard.6. The crosslinked polyethylene pipe according to claim 1 , wherein the crosslinking agent comprises at least one selected from ...

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Номер записи: 56

31-03-2022 дата публикации

INTERNALLY PLASTICIZED POLYVINYL CHLORIDE AND A PROCESS FOR PREPARATION THEREOF

Номер: US20220098396A1

Автор: Gupta Virendra Kumar, KUMBHAR Haribhau Shantaram, MISRA Ashok, TIWARI Saurabh Kumar

Принадлежит: RELIANCE INDUSTRIES LIMITED

The present disclosure relates to an internally plasticized polyvinyl chloride resin and a process for preparation thereof. The internally plasticized polyvinyl chloride resin comprises a polyvinyl chloride (PVC) resin covalently bonded to at least one plasticizer. The process is simple and economical and provides internally plasticized PVC with enhanced flexibility, and improved characteristics than conventional PVC resin. 1. A process for preparing an internally plasticized polyvinyl chloride resin , said process comprising the following steps:(i) treating thermally a polyvinyl chloride (PVC) resin to allow partial dehydrochlorination to obtain partially unsaturated polyvinyl chloride resin;(ii) mixing the partially unsaturated polyvinyl chloride resin with a fluid medium to obtain a slurry, wherein said fluid medium is at least one selected from the group consisting of 1-propanol, 2-propanol, 1-butanol, 1-pentanol and ethylene glycol;(iii) heating the slurry at a temperature in the range of 70° C. to 120° C. to obtain heated slurry;(iv) adding at least one initiator and at least one plasticizer, under stirring, to the heated slurry to obtain a reaction mixture, wherein said plasticizer comprises allyl group, vinyl group or combination thereof;(v) maintaining the reaction mixture at a temperature in the range of 100° C. to 130° C., under stirring, for a time period in the range of 4 to 10 hours to obtain a product mixture comprising the internally plasticized polyvinyl chloride resin; and(vi) filtering the product mixture to obtain the internally plasticized polyvinyl chloride resin.2. The process as claimed in claim 1 , wherein the PVC resin has a chlorine content in the range of 56 wt % to 59 wt % claim 1 , and the partially unsaturated PVC resin obtained after step (i) of thermal treatment has chlorine content in the range of 48 wt % to 55 wt %.3. The process as claimed in claim 1 , wherein the PVC resin is waste PVC resin claim 1 , wherein said waste PVC resin ...

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Номер записи: 57

31-03-2022 дата публикации

POLYMER COMPOSITION

Номер: US20220098401A1

Автор: AJELLAL Noureddine, ALBRECHT Andreas, JAMIESON John, Klimke Katja, LEGRAS Angelica Maëlle Delphine, Prades Floran, Purmonen Jouni, Ruskeeniemi Jari-Jussi, Sundholm Tua

Принадлежит:

The present invention relates to a polymer composition comprising (A) from 60 to 90 wt % of a non-elastomeric polyethylene; (B) from 9.0 to 38 wt % of an elastomer; wherein onto component (A) or components (A) and (B) an acid grafting agent (C) has been grafted in an amount of from 0.01 to 3.0 wt %, all based on the total weight of the polymer composition, and wherein the polymer composition has two distinct peaks and a valley between said peaks in the GPC curve and a Z value, determined from the areas below the two peaks of the GPC curve, of at least −0.3, wherein the Z-value is determined according to formula (I) Z=s/Abs(B−A) (I) wherein Abs(B−A) is the absolute value of (B−A); A=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS15 signal, from log M of 5.1 to log M value where the LS signal is minimum log M (Min), in the log M range between 5.1 and 6; B=the area, between the tangent parallel to the MW axis going through log M (Min) and the LS 15 signal, from log M(Min) to the point where the LS signal is crossed again; and s is the slope between the two peaks of the GPC curve, defined at log M of 5.1 and 6, wherein the GPC curve is defined as the concentration normalized LS 15 signal along the molecular weight of conventional GPC, obtained from the GPC-VISC-LS analysis, a multi-layer structure such as a coated metal pipe, comprising one layer comprising said polymer composition and the use of said polymer composition as adhesive polymer composition and for the production of a multi-layer structure. 1. A polymer composition comprising(A)from 60 to 90 wt % of a non-elastomeric polyethylene;(B) from 9.0 to 38 wt % of an elastomer;wherein onto component (A) or components (A) and (B) an acid grafting agent (C) has been grafted in an amount of from 0.01 to 3.0 wt %, all based on the total weight of the polymer composition, and {'br': None, 'i': Z=s', 'B−A, '/Abs()\u2003\u2003(I)'}, 'wherein the polymer composition has two ...

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Номер записи: 58

12-03-2020 дата публикации

CURABLE COMPOSITION FOR CURED IN PLACE PIPES

Номер: US20200079953A1

Автор: Dejesus Radames, Nawracaj Richard E., Urbieta Gabriel

Принадлежит: CORVIXX POLYMERS CIPP CORPORATION

Disclosed is a curable composition with enhanced curing time at ambient temperatures, the curable composition including (a) a resin, e.g., 4,4′-isopropylidenediphenol-epichlorohydrin copolymer and (b) one or more curing agents, wherein a ratio of a weight percentage of the resin to a weight percentage of the curing agent or curing agents is from about 12:1 to about 15:1. Also disclosed is a method of curing a cured-in-place liner, wherein the cured-in-place liner contains the above curable composition. 24-. (canceled)54. The curable composition of claim , wherein X is the carboxylate anion of a carboxylic acid comprising from 1 to about 40 carbon atoms.6. The curable composition of claim 1 , wherein the ratio of the weight percentage of the resin to the weight percentage of the curing agent or curing agents of formula (I) is from about 12:1 to about 14:1.7. The curable composition of claim 6 , wherein the ratio of the weight percentage of the resin to the weight percentage of the curing agent or curing agents of formula (I) is about 12:1.8. The curable composition of claim 1 , wherein the composition requires a temperature of at least about 85° C. to begin a curing process.9. The curable composition of claim 1 , wherein the composition begins a curing process at a temperature of about 60° C. to about 85° C.10. (canceled)11. The curable composition of claim 1 , wherein the composition has a gel time of about 14 hours to about 22 hours at a temperature of 21° C.12. The curable composition of claim 11 , wherein the composition has a gel time of about 16 hours to about 20 hours at a temperature of 21° C.1330-. (canceled)31. The curable composition of claim 1 , wherein the curing agent is a carboxylate of an amine selected from N-hydroxypropylpiperidine claim 1 , N-hydroxyethylmorpholine claim 1 , 2-methyl-N-hydroxyethylpiperidine claim 1 , 1 claim 1 ,4-bis(2-hydroxyethyl)piperazine claim 1 , N-hydroxymethylpiperidine claim 1 , N-hydroxyethylpiperidine claim 1 , and ...

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Номер записи: 59

29-03-2018 дата публикации

Enhancing Bond Strength Of Medical Devices

Номер: US20180086902A1

Автор: Coughlin Edward Bryan, DATASHVILI Tea, Hermel-Davidock Theresa, ZHANG Jianbin

Принадлежит:

Components of medical devices include polyethylene-poly(ethylene oxide) amphiphilic graft copolymers (PE-g-PEO) in their base polymer formulations. The base polymeric formulations comprise at least a polymer or co-polymer of ethylene. These components are suitable for solvent-bonding with other components and enhance bond strength of the medical devices. 1. A tubing for a medical device formed from a blend comprising:a base polymeric formulation comprising at least a polymer or co-polymer of ethylene or propylene and excluding free poly(ethylene oxide); andan additive comprising a polyethylene-poly(ethylene oxide) amphiphilic graft copolymer (PE-g-PEO);the PE-g-PEO being present in the blend in an amount in the range of about 0.01 to about 5.0% by weight of the blend.3. The tubing of claim 1 , wherein the base polymeric formulation comprises polyethylene claim 1 , polypropylene claim 1 , a polyethylene-polypropylene co-polymer claim 1 , a polyethylene- and/or polypropylene-containing thermoplastic elastomer (TPE) claim 1 , or combinations thereof.4. The tubing of claim 3 , wherein the base polymeric formulation comprises a co-polymer of polyethylene and polypropylene.5. The tubing of claim 3 , wherein the polyethylene-and/or polypropylene-containing thermoplastic elastomer (TPE) comprises at least 60 mol % total polyethylene and/or polypropylene.6. The tubing of claim 1 , wherein the PE-g-PEO is a product of ethylene oxide ring-opening polymerization of an ethylene vinyl acetate copolymer having from 10 to 40 weight percent of vinyl acetate.7. The tubing of claim 1 , wherein the PE-g-PEO has a dispersity index in the range of 2 to 10.9. The medical device of claim 8 , wherein the base polymeric formulation comprises polyethylene claim 8 , polypropylene claim 8 , a polyethylene-polypropylene co-polymer claim 8 , a polyethylene- and/or polypropylene-containing thermoplastic elastomer (TPE) claim 8 , or combinations thereof.10. The medical device of claim 8 , wherein ...

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Номер записи: 60

29-03-2018 дата публикации

Enhancing Bond Strength Of Medical Devices

Номер: US20180086905A1

Автор: Coughlin Edward Bryan, DATASHVILI Tea, Hermel-Davidock Theresa, ZHANG Jianbin

Принадлежит:

Components of medical devices include polypropylene-poly(ethylene oxide) amphiphilic graft copolymers (PP-g-PEO) in their base polymer formulations. The base polymeric formulations comprise at least a polymer or co-polymer of propylene. These components are suitable for solvent-bonding with other components and enhance bond strength of the medical devices. 1. A tubing for a medical device formed from a blend comprising:a base polymeric formulation comprising at least a polymer or co-polymer of ethylene or propylene and excluding free poly(ethylene oxide); andan additive comprising a polypropylene-poly(ethylene oxide) amphiphilic graft copolymer (PP-g-PEO);the PP-g-PEO being present in the blend in an amount in the range of about 0.01 to about 5.0% by weight of the blend.3. The tubing of claim 1 , wherein the base polymeric formulation comprises polyethylene claim 1 , polypropylene claim 1 , a polypropylene-maleic anhydride co-polymer claim 1 , a polyethylene-polypropylene co-polymer claim 1 , a polyethylene- and/or polypropylene-containing thermoplastic elastomer (TPE) claim 1 , or combinations thereof.4. The tubing of claim 3 , wherein the base polymeric formulation comprises a co-polymer of polyethylene and polypropylene.5. The tubing of claim 3 , wherein the polyethylene- and/or polypropylene-containing thermoplastic elastomer (TPE) comprises at least 60 mol % total polyethylene and/or polypropylene.6. The tubing of claim 1 , wherein the PP-g-PEO is a product of ethylene oxide ring-opening polymerization of a polypropylene-maleic anhydride co-polymer (PP-MA) having from 10-50 weight percent of maleic anhydride.7. The tubing of claim 1 , wherein the PP-g-PEO has a dispersity index in the range of 2 to 10.9. The medical device of claim 8 , wherein the base polymeric formulation comprises polyethylene claim 8 , polypropylene claim 8 , a polyethylene-polypropylene co-polymer claim 8 , a polyethylene- and/or polypropylene-containing thermoplastic elastomer (TPE) claim ...

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Номер записи: 61

29-03-2018 дата публикации

ANTISTATIC RESIN COMPOSITION AND POLYOLEFIN ANTISTATIC FIBER FOR CONTAINER AND PIPE FOR ORGANIC SOLVENT

Номер: US20180086958A1

Автор: Cui Chun, NAKAMURA Tatsuhito, NOMURA Kazukiyo

Принадлежит: ADEKA CORPORATION

Provided are: an antistatic resin composition for containers and pipes of organic solvents, which has long-lasting and sufficient antistaticity and whose antistatic performance is not impaired even when the composition is in contact with an organic solvent for a long period of time; and a container and a pipe for organic solvents, which include the same. 1. An antistatic resin composition for containers and pipes of organic solvents , said antistatic resin composition comprising 3 to 25 parts by mass of at least one polymer compound (E) with respect to 100 parts by mass of a thermoplastic resin , {'br': None, 'sub': 2', '2, '—CH—CH—O—\u2003\u2003(1)'}, 'wherein said polymer compound (E) has a structure in which a diol, an aliphatic dicarboxylic acid, an aromatic dicarboxylic acid, a compound (B) which comprises at least one group represented by the following Formula (1) and has hydroxyl groups at both ends, and an epoxy compound (D) having two or more epoxy groups are bound via ester bonds2. The antistatic resin composition for containers and pipes of organic solvents according to claim 1 , wherein said polymer compound (E) has a structure in which a polyester (A) claim 1 , which is constituted by a diol claim 1 , an aliphatic dicarboxylic acid and an aromatic dicarboxylic acid claim 1 , said compound (B) and said epoxy compound (D) are bound via ester bonds.3. The antistatic resin composition for containers and pipes of organic solvents according to claim 2 , wherein said polymer compound (E) has a structure in which a block polymer (C) having carboxyl groups at both ends and said epoxy compound (D) are bound via an ester bond claim 2 , said block polymer (C) comprising a block constituted by said polyester (A) and a block constituted by said compound (B) that are repeatedly and alternately bound via ester bonds.4. The antistatic resin composition for containers and pipes of organic solvents according to claim 2 , wherein said polyester (A) constituting said ...

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Номер записи: 62

05-05-2022 дата публикации

Polyethylene Having High Pressure Resistance and Crosslinked Polyethylene Pipe Comprising the Same

Номер: US20220135712A1

Автор: Cho Sol, CHOI Yi Young, Kim Sun Mi, KIM Yeonsoo, LEE Hyunsup, Lee Myunghan

Принадлежит: LG CHEM, LTD.

The present disclosure relates to a polyethylene having high pressure resistance and a crosslinked polyethylene pipe including the same. The polyethylene according to the present disclosure has high melt index and density and exhibits a sufficient degree of crosslinking, thereby exhibiting excellent strength and pressure resistance characteristics.

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Номер записи: 63

05-05-2022 дата публикации

NUCLEATED PROPYLENE POLYMER COMPOSITION WITH HIGH TOUGHNESS

Номер: US20220135714A1

Автор: Bernreitner Klaus, Gahleitner Markus, Gloger Dietrich, Wang Jingbo

Принадлежит:

The present invention is directed to a propylene polymer composition comprising (a) at least 90 wt. %, based on the weight of the total propylene homopolymer composition, of a propylene homopolymer having (i) a pentad isotacticity (mmmm) of equal or more than 98.0 mol.-%, determined by quantitative C NMR spectroscopy, (ii) a relative amount of <2,1> erythro regio-defects of not more than 0.2 mol.-%, determined by quantitative C NMR spectroscopy, as described herein, and (b) a nucleating agent (B) selective for the beta-modification of isotactic polypropylene in an amount of from 0.001 to 1.0 wt. %, based on the weight of the total propylene homopolymer composition, wherein said propylene homopolymer composition has a melt flow rate MFR(230° C., 2.16 kg) according to ISO 1133 of 0.1 to 10 g/10 min., a beta-phase content of not less than 80%, measured by wide angle x-ray scattering (WAXS). Further disclosed is a moulded propylene homopolymer product obtainable by compression moulding or extrusion of the propylene homopolymer composition.

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Номер записи: 64

19-03-2020 дата публикации

THERMOPLASTIC CROSSLINKED POLYETHYLENE MATERIAL, PREPARATION METHOD AND USE THEREOF

Номер: US20200087491A1

Автор: CHEN ZHANGCHENG, Cheng Zhi, DUAN KAIGE, HU MINGYUAN, NI JIA, XU JUNZHENG, YU DONGMING, ZHOU CHAOXI

Принадлежит:

The present application belongs to the field of polymer materials, discloses a thermoplastic crosslinked polyethylene material, preparation method and use thereof. The thermoplastic crosslinked polyethylene material comprises a first polyethylene component that is easily crosslinked, a second polyethylene component that is not easily crosslinked, and an organic peroxide crosslinking agent. In the present application, the product of the first polyethylene that is easily crosslinked, is crosslinked in a fine particle form and uniformly dispersed in the second polyethylene component that is not easily crosslinked, and intertwined with the macromolecular chain of the second polyethylene component that is not easily crosslinked. The resulted product is completely thermoplastic, and has properties, such as heat resistance and creep property, superior to the first polyethylene component that is easily crosslinked and the second polyethylene component that is not easily crosslinked. 1. A thermoplastic crosslinked polyethylene material , wherein the thermoplastic crosslinked polyethylene material comprises the following raw materials in parts by weight:30˜70 parts of a first polyethylene component;30˜70 parts of a second polyethylene component; and0.15˜0.35 part of a crosslinking agent;the first polyethylene component is an ethylene homopolymer free of antioxidants or other free radical scavengers;the second polyethylene component is an ethylene homopolymer containing antioxidants or other free radical scavengers, or a copolymer of ethylene and a non-ethylene monomer.2. The thermoplastic crosslinked polyethylene material according to claim 1 , wherein the non-ethylene monomer is one or more of butene claim 1 , hexene and octene.3. The thermoplastic crosslinked polyethylene material according to claim 1 , wherein the thermoplastic crosslinked polyethylene material comprises the following raw materials in parts by weight:35 parts of the first polyethylene component;65 parts of ...

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Номер записи: 65

19-03-2020 дата публикации

POLYETHYLENE AND CONTROLLED RHEOLOGY POLYPROPYLENE POLYMER BLENDS AND METHODS OF USE

Номер: US20200087495A1

Автор: Rodriguez Cortes Leonardo

Принадлежит:

Polymer blends, methods of making, and methods of using the polymer blends are described. A polymer blend can include a polyethylene (PE) polymer and a controlled rheology polypropylene (CRPP) polymer having a PE polymer to CRPP polymer (PE:CRPP) weight ratio of greater than 1:1. 1. A polymer blend comprising a polyethylene (PE) and a controlled-rheology polypropylene (CRPP) having a PE to CRPP (PE:CRPP) weight ratio of greater than 1:1.2. The polymer blend of claim 1 , wherein the CRPP comprises unreacted prodegradant blended therewith.3. The polymer blend of claim 2 , wherein the prodegradant is a peroxide compound.4. The polymer blend of claim 1 , wherein the polymer blend has a higher melt strength than the melt strength of the PE absent the CRPP.5. The polymer blend of claim 4 , wherein the higher melt strength of the polymer blend comprises an increased zero shear viscosity and a decreased breadth parameter as compared to the PE absent the CRPP.6. The polymer blend of claim 1 , wherein the PE is selected from the group consisting of a low density polyethylene (LDPE) claim 1 , a linear low density polyethylene (LLDPE) claim 1 , a medium density polyethylene (MDPE) claim 1 , a high density polyethylene (HDPE) claim 1 , an ethylene copolymer claim 1 , or blends thereof.7. The polymer blend of claim 6 , wherein the PE is a metallocene catalyst based polymer.8. The polymer blend of claim 1 , wherein the blend includes 1 wt. % to 10 wt. % of CRPP and 99 wt. % to 90 wt. % of PE.9. The polymer blend of claim 1 , wherein the CRPP has a melt flow rate (MRF) of at least 100 g/10 min.10. The polymer blend of claim 9 , wherein the CRPP comprises 0.001 wt. % to 5 wt. % of unreacted prodegradant.11. The polymer blend of claim 1 , further comprising one or more additives.12. The polymer blend of claim 11 , wherein the additive comprises an antiblocking agent claim 11 , an antistatic agent claim 11 , an antioxidant claim 11 , a neutralizing agent claim 11 , a blowing agent ...

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Номер записи: 66

01-04-2021 дата публикации

Curable compositions for cured-in-place pipes

Номер: US20210095114A1

Автор: Gabriel URBIETA, Radames Dejesus, Richard E. NAWRACAJ

Принадлежит: Pipefusion Cipp Corp

Disclosed is a curable composition with enhanced curing time at ambient temperatures, the curable composition including (a) a resin, e.g., 4,4′-isopropylidenediphenol-epichlorohydrin copolymer and (b) one or more curing agents, wherein a ratio of a weight percentage of the resin to a weight percentage of the curing agent or curing agents is from about 12:1 to about 15:1. Also disclosed is a method of curing a cured-in-place liner, wherein the cured-in-place liner contains the above curable composition.

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Номер записи: 67

12-05-2022 дата публикации

COMPOSITION COMPRISING AN OXIDIZED POLYETHYLENE WAX, A COLOR MASTERBATCH COMPRISING THE SAME, A PRODUCT COMPRISING THE COLOR MASTERBATCH AND THE USE OF THE COLOR MASTERBATCH

Номер: US20220145078A1

Автор: LERTCHANYAKUL Paweena, SAHASYODHIN Pattarit

Принадлежит:

The present invention relates to a composition comprising an oxidized polyethylene wax, wherein, the composition has an acid value of 11 to 15 mgKOH/g, preferably 12 to 15 mgKOH/g, even more preferred 12 to 14 mgKOH/g according to ASTM D1386 with respect to the total weight of the oxidized polyethylene wax, a weight average molecular weight from 2,000 to 12,000 g/mol, preferably 4,000 to 9,000 g/mol, even more preferred 5,000 to 8,000 g/mol determined according to gel permeation chromatography; and a density from 0.92 to 0.99 g/cm, preferably 0.93 to 0.97 g/cm, even more preferred 0.93 to 0.95 g/cmaccording to ASTM D1505, a masterbatch comprising the same, products comprising the masterbatch and the use of the masterbatch and the composition. 1. A composition comprising an oxidized polyethylene wax , wherein the composition has an acid value of 11 to 15 mgKOH/g according to ASTM D1386 with respect to the total weight of the oxidized polyethylene wax , a weight average molecular weight from 2 ,000 to 12 ,000 g/mol determined according to gel permeation chromatography; and a density from 0.92 to 0.99 g/cmaccording to ASTM D1505.2. The composition according to claim 1 , wherein the composition has a viscosity from 80 to 1 claim 1 ,500 cP at 149° C. according to ASTM D3236.3. The Composition according to claim 1 , wherein the composition has a viscosity from 130 to 170 cP at 149° C.4. The composition according to claim 1 , wherein the density is from 0.94 to 0.95 g/cm.5. The composition according to claim 1 , wherein the composition comprises 70 to 85% by weight of an oxidized polyethylene wax having an acid value from 17 to 18 mgKOH/g and 15 to 30% by weight of a polyethylene homopolymer wax with respect to the total weight of the composition claim 1 , respectively.6. The composition according to claim 5 , wherein the density is from 0.93 to 0.94 g/cm.7. The composition according to claim 5 , wherein the composition has a viscosity from 150 to 250 cP at 149° C.8. The ...

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Номер записи: 68

28-03-2019 дата публикации

POLYVINYL CHLORIDE PIPE

Номер: US20190092935A1

Автор: PETR Michael T., Rapacki Steven R.

Принадлежит:

The present invention relates to non-oriented and oriented polyvinyl chloride pipe comprising: a) polyvinyl chloride; b) from 2 to 5 parts by weight of polymeric processing aid per 100 parts by weight of the polyvinyl chloride; and c) from 1.6 to 2.0 parts by weight percent of a paraffin wax per 100 parts by weight of the polyvinyl chloride. The polyvinyl chloride pipe of the present invention comprises a concentration of paraffin wax lubricant (>1.5 parts per 100 parts polyvinyl chloride) heretofore unrecognized in the art, without the loss of key physical properties. 1. A non-oriented polyvinyl chloride pipe comprising , based on the weight of the pipe:a) polyvinyl chloride;b) from 2 to 5 parts by weight of a polymeric processing aid per 100 parts by weight of the polyvinyl chloride; andc) from 1.6 to 2.0 parts by weight percent of an external lubricant per 100 parts by weight of the polyvinyl chloride;wherein the polyvinyl chloride has K-value in the range of 60 to 75;{'sub': 2', '6', '2', '6, 'wherein the polymeric processing aid comprises from 50 to 95 weight percent structural units of methyl methacrylate and from 5 to 50 weight percent structural units of a second monomer which is a C-Cacrylate or a C-Cmethacrylate or a combination thereof;'}wherein the external lubricant is a polyol ester or a paraffin wax; and{'sup': 5', '7, 'wherein the processing aid has a weight average molecular weight in the range of from 5×10Daltons to 5×10Daltons.'}2. The non-oriented pipe of wherein the processing aid comprises from 60 to 90 weight percent methyl methacrylate and from 10 to 40 weight percent of the second monomer which is butyl acrylate claim 1 , butyl methacrylate claim 1 , or ethyl acrylate or a combination thereof; wherein the processing aid has a weight average molecular weight in the range of from 1×10Daltons to 2×10Daltons; and wherein the concentration of the processing aid in the non-oriented polyvinyl chloride pipe is from 2.5 to 5.0 parts by weight per 100 ...

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Номер записи: 69

06-04-2017 дата публикации

POLYETHYLENE COMPOSITIONS, AND ARTICLES MADE THEREFROM

Номер: US20170096551A1

Автор: Chang Dane, Dudek Stanley P.

Принадлежит:

The invention provides a composition comprising a blend, the blend comprising a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc, and an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram. 1. A composition comprising a blend , the blend comprising:a polyethylene resin comprising a first molecular weight ethylene-based polymer component having a density from 0.910 to 0.940 g/cc and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc; andan ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram.2. The composition of claim 1 , wherein the polyethylene resin has a high load melt index (I21) from 1 to 20 g/10 min.3. (canceled)4. The composition of claim 1 , wherein the high load melt index (I21) of the first molecular ethylene-based polymer component is from 0.05 to 1.2 g/10 min.5. The composition of claim 1 , wherein the weight ratio of the first molecular weight ethylene-based polymer component to the second molecular weight ethylene-based polymer component is from 0.4 to 2.3.6. The composition of claim 1 , wherein the density of the ultra-high molecular weight ethylene-based polymer is from 0.920 to 0.945 g/cc.7. The composition of claim 1 , wherein the ultra-high molecular weight ethylene-based polymer has a weight average molecular weight of greater than 1 claim 1 ,000 claim 1 ,000 g/mole.8. The composition of claim 1 , wherein the weight ratio of the polyethylene resin to the ultra-high molecular weight ethylene-based polymer is from 0.4 to 2.3.9. The composition of claim 1 , wherein the blend has a high load melt index (I21) from 0.1 to 20 g/10 min.10. The composition of claim 1 , further comprising a ...

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Номер записи: 70

18-04-2019 дата публикации

PROCESS AIDS FOR ORIENTED POLYVINYL CHLORIDE

Номер: US20190112462A1

Автор: PETR Michael T.

Принадлежит:

Provided are oriented thermoplastic polymer composition comprising (a) a polyvinyl chloride formulation, and (b) an acrylic copolymer comprising polymerized units derived from (i) 50 to 95 weight % of methyl methacrylate monomers, and (ii) 5 to 50 weight % of C-Calkyl (meth)acrylate monomers, based on the total weight of monomers in the acrylic copolymer, wherein the acrylic copolymer has a M/GPC-PS of 4×10g/mol or more. 1. An oriented thermoplastic polymer composition comprising:(a) a polyvinyl chloride formulation; and{'sub': 2', '6', 'w, 'sup': '6', '(b) an acrylic copolymer comprising polymerized units derived from (i) 50 to 95 weight % of methyl methacrylate monomers, and (ii) 5 to 50 weight % of C-Calkyl (meth)acrylate monomers, based on the total weight of monomers in the acrylic copolymer, wherein the acrylic copolymer has a M/GPC-PS of 4×10g/mol or more.'}2. The oriented thermoplastic polymer composition of claim 1 , wherein the polyvinyl chloride formulation comprises a polyvinyl chloride and a component selected from the group consisting of internal lubricants claim 1 , external lubricants claim 1 , stabilizers claim 1 , inorganic fillers claim 1 , and combinations of these.3. The oriented thermoplastic polymer composition of claim 1 , wherein the acrylic copolymer comprises polymerized units derived from (i) 55 to 85 weight % of methyl methacrylate monomers claim 1 , and (ii) 15 to 45 weight % of C-Calkyl (meth)acrylate monomers claim 1 , based on the total weight of the monomers in the acrylic copolymer.4. The oriented thermoplastic polymer composition of claim 1 , wherein the acrylic copolymer comprises polymerized units derived from (i) 60 to 82 weight % of methyl methacrylate monomers claim 1 , and (ii) 18 to 40 weight % of C-Calkyl (meth)acrylate monomers claim 1 , based on the total weight of the monomers in the acrylic copolymer.5. The oriented thermoplastic polymer composition of claim 1 , wherein the C-Calkyl (meth)acrylate monomers are selected ...

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Номер записи: 71

18-04-2019 дата публикации

POLYVINYL CHLORIDE-BASED RESIN MOLDED PRODUCT AND METHOD FOR MANUFACTURING THE SAME

Номер: US20190112463A1

Автор: Kawabata Toshiki

Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

The present invention provides a polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 3 to 15 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 μm and 2 to 4 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin, wherein a Charpy impact strength at 23° C. is 20 kJ/mor more, and a weight reduction ratio is 1.5 mg/cmor less when the molded product is immersed in a 93% by weight sulfuric acid aqueous solution for 14 days in accordance with JIS K 6745, and a method for manufacturing the polyvinyl chloride-based resin molded product. 1. A polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 3 to 15 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 μm and 2 to 4 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin , wherein a Charpy impact strength at 23° C. is 20 kJ/mor more , and a weight reduction ratio is 1.5 mg/cmor less when the molded product is immersed in a 93% by weight sulfuric acid aqueous solution for 14 days in accordance with JIS K 6745.2. The polyvinyl chloride-based resin molded product of claim 1 , wherein the impact modifier is at least one resin material selected from the group consisting of a methyl methacrylate-butadiene-styrene graft copolymer (MBS polymer) claim 1 , an acrylic rubber claim 1 , and a chlorinated polyethylene.3. The polyvinyl chloride-based resin molded product of claim 1 , used for a product selected from the group consisting of a pipe claim 1 , a joint claim 1 , a drainage basin claim 1 , a gutter claim 1 , a window frame claim 1 , a siding claim 1 , a film-sheet material claim 1 , a flat plate claim 1 , and a corrugated plate.4. A method for manufacturing a polyvinyl chloride-based resin molded product claim 1 , wherein a resin mixture containing 3 to 15 parts by weight of calcium ...

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Номер записи: 72

18-04-2019 дата публикации

POLYVINYL CHLORIDE-BASED RESIN MOLDED PRODUCT AND METHOD FOR MANUFACTURING THE SAME

Номер: US20190112464A1

Автор: Kawabata Toshiki

Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

The present invention provides a polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 1 to 50 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 μm and 5 to 18 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin, wherein a Charpy impact strength at 0° C. is 20 kJ/mor more, and a Vicat softening temperature is 85° C. or higher, and a method for manufacturing the polyvinyl chloride-based resin molded product. 1. A polyvinyl chloride-based resin molded product obtained by molding a resin mixture containing 1 to 50 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 μm and 5 to 18 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin , wherein a Charpy impact strength at 0° C. is 20 kJ/mor more , and a Vicat softening temperature is 85° C. or higher.2. The polyvinyl chloride-based resin molded product of claim 1 , wherein the impact modifier is at least one resin material selected from the group consisting of a methyl methacrylate-butadiene-styrene graft copolymer (MBS polymer) claim 1 , an acrylic rubber claim 1 , and a chlorinated polyethylene.3. The polyvinyl chloride-based resin molded product of claim 1 , used for a product selected from the group consisting of a pipe claim 1 , a pipe fitting claim 1 , a drainage basin claim 1 , a gutter claim 1 , a window frame claim 1 , a siding claim 1 , a film-sheet material claim 1 , a flat plate claim 1 , and a corrugated plate.4. A method for manufacturing a polyvinyl chloride-based resin molded product claim 1 , wherein a resin mixture containing 1 to 50 parts by weight of calcium carbonate having an average primary particle size of 0.01 to 0.3 μm and 5 to 18 parts by weight of an impact modifier per 100 parts by weight of a polyvinyl chloride-based resin is mixed at a rotational speed of 500 to 3 claim 1 ,000 rpm ...

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Номер записи: 73

25-04-2019 дата публикации

METHOD FOR PREPARING ORIENTED POLYVINYL CHLORIDE

Номер: US20190119483A1

Автор: PETR Michael T.

Принадлежит: Rohm and Haas Company

Provided are methods for improving the melt strength of oriented thermoplastic polymer compositions comprising a polyvinyl chloride formulation, comprising adding an acrylic copolymer to the oriented thermoplastic polymer composition, wherein the acrylic copolymer comprises polymerized units derived from (i) 50 to 95 weight % of methyl methacrylate monomers, and (ii) 5 to 50 weight % of C-Calkyl (meth)acrylate monomers, based on the total weight of monomers in the acrylic copolymer, wherein the acrylic copolymer has a M/GPC-PS of 4×10g/mol or more. 1. A method for improving the melt strength of an oriented thermoplastic polymer composition comprising a polyvinyl chloride formulation , comprising adding an acrylic copolymer to the oriented thermoplastic polymer composition , wherein the acrylic copolymer comprises polymerized units derived from (i) 50 to 95 weight % of methyl methacrylate monomers , and (ii) 5 to 50 weight % of C-Calkyl (meth)acrylate monomers , based on the total weight of monomers in the acrylic copolymer , wherein the acrylic copolymer has a M/GPC-PS of 4×10g/mol or more.2. The method according to claim 1 , wherein the polyvinyl chloride formulation comprises a polyvinyl chloride and a component selected from the group consisting of internal lubricants claim 1 , external lubricants claim 1 , stabilizers claim 1 , inorganic fillers claim 1 , and combinations of these.3. The method according to claim 1 , wherein the acrylic copolymer comprises polymerized units derived from (i) 55 to 85 weight % of methyl methacrylate monomers claim 1 , and (ii) 15 to 45 weight % of C-Calkyl (meth)acrylate monomers claim 1 , based on the total weight of the monomers in the acrylic copolymer.4. The method according to claim 1 , wherein the acrylic copolymer comprises polymerized units derived from (i) 60 to 82 weight % of methyl methacrylate monomers claim 1 , and (ii) 18 to 40 weight % of C-Calkyl (meth)acrylate monomers claim 1 , based on the total weight of the ...

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Номер записи: 74

27-05-2021 дата публикации

Polyethylene composition

Номер: US20210155783A1

Автор: Eric Johannes Cornelia JANSSEN, Haika Johanna HILDEBRANDT

Принадлежит: SABIC Global Technologies BV

The invention is related to a polyethylene composition comprising an ethylene polymer having a density in the range from ≥950 kg/m3 to ≤958 kg/m3, determined according to ISO 1183-1:2004, a melt flow rate MFR 5 (190° C., 5 kg) in the range from ≥0.16 g/10 min to ≥0.26 g/10 min, determined according to ISO 1133:1997, a melt flow ratio FRR (190° C., 21.6/5 kg) in the range from ≥22 to ≤40, a complex viscosity at 100 rad/s and 190° C. (eta100) of at least 2500 Pa·s and a complex viscosity at 0.01 rad/s and 190° C. (eta0.01) of at least 250000 Pa·s.

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Номер записи: 75

27-05-2021 дата публикации

HIGH TEMPERATURE TIE LAYER COMPOSITIONS, AND ARTICLES MADE THEREFROM

Номер: US20210155784A1

Автор: Chang Dane, Doyle Condell

Принадлежит:

A tie layer composition comprising from 60 wt. to 95 wt. % of a first polyethylene composition comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc and a melt index (I2) from 0.01 to 5 g/10 min; and from 5 wt. % to 40 wt. % of a second polyethylene composition comprising: (i) a high density polyethylene having a density greater than or equal to 0.940 g/cc; and (ii) a maleic-anhydride grafted polyethylene. 1. A tie layer composition comprising:from 60 wt. to 95 wt. % of a first polyethylene composition comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc and a melt index (I2) from 0.01 to 5 g/10 min; andfrom 5 wt. % to 40 wt. % of a second polyethylene composition comprising:(i) from 1 to 99 wt. %, based on the total weight of the composition, of a high density polyethylene having a density greater than or equal to 0.940 g/cc; and(ii) from 1 to 99 wt. %, based on the total weight of the composition, of a maleic-anhydride grafted polyethylene.2. The tie layer composition of claim 1 , wherein the first polyethylene composition has a high load melt index (I21) from 1 to 20 g/10 min.3. The tie layer composition of claim 1 , wherein the first polyethylene composition has a molecular weight distribution from 10 to 40 claim 1 , as determined by conventional gel permeation chromatography.6. The tie layer composition of claim 1 , wherein the compound selected from Formula 3 is present in an amount from 500 to 2500 ppm claim 1 , based on the weight of the first polyethylene composition.8. The tie layer composition of claim 1 , wherein the compound selected from Formula 4 is present in an amount from 500 to 1500 ppm claim 1 , based on the weight of the first polyethylene composition. ...

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Номер записи: 76

10-05-2018 дата публикации

BIMODAL HIGH-DENSITY POLYETHYLENE RESINS AND COMPOSITIONS WITH IMPROVED PROPERTIES AND METHODS OF MAKING AND USING THE SAME

Номер: US20180127573A1

Автор: Cottle Joshua Allen, Dheur Luc, Gessner Mark Anthony, Sander Robert Ernest

Принадлежит: INEOS Olefins & Polymers USA, a division of INEOS USA LLC

The present disclosure is related to bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability comprising a base resin which has a density of about 945 kg/mto about 955 kg/m, and comprises an ethylene polymer (A) having a density of at least about 968 kg/m, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2500 Pa·s. The present disclosure also relates to methods of making, and using the present compositions, and to articles made from there composition, and preferably to pipes and fittings. 161-. (canceled)62. A polyethylene polymer article made with a resin comprising:{'sup': '3', 'an ethylene polymer (A) having a density of at least about 968 kg/min an amount ranging from about 45% to about 55% by weight; and'}an ethylene polymer (B) having a density lower than the density of ethylene polymer (A),{'sup': 3', '3, 'wherein the resin has a density of about 945 kg/mto about 955 kg/m, a zero shear viscosity (η*0) greater than about 800 kPas, a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s, a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2600 Pa·s, a melt index MI5 ranging from about 0.1 to about 0.5 g/10 min, an HLMI ranging from 7 to 11 g/10 min and a PENT failure time greater than 7900 hours.'}63. The article according to claim 62 , wherein the article is selected from the group consisting of a pipe or a pipe fitting.64. The article according to claim 63 , wherein the article exhibits PENT failure time greater than 10 claim 63 ,000 hours.65. The article according to claim 63 , wherein the article exhibits a Minimum Requires Strength (MRS) according to ...

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Номер записи: 77

01-09-2022 дата публикации

RUBBER COMPOSITION FOR HOSE AND HOSE

Номер: US20220275178A1

Автор: SUGIHARA Koki

Принадлежит:

The present invention is to provide a rubber composition for a hose and the like, the rubber composition having excellent oil resistance and low-temperature performance. A rubber composition for a hose, the rubber composition comprising: a hydrogenated acrylonitrile butadiene rubber having an acrylonitrile amount of 24 mass % or less, a carbon black, a peroxide, and a triallyl isocyanurate; a content of the peroxide being 2.4 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber; and a content of the triallyl isocyanurate being 1.9 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber, and a hose formed by using the rubber composition for a hose. 1. A rubber composition for a hose , the rubber composition comprising: a hydrogenated acrylonitrile butadiene rubber having an acrylonitrile amount of 24 mass % or less , a carbon black , a peroxide , and a triallyl isocyanurate;a content of the peroxide being 2.4 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber; anda content of the triallyl isocyanurate being 1.9 parts by mass or more per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber.2. The rubber composition for a hose according to claim 1 , wherein a hydrogenation percentage of the hydrogenated acrylonitrile butadiene rubber is from 95 to 100%.3. The rubber composition for a hose according to claim 1 , wherein a content of the carbon black is from 40 to 150 parts by mass per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber.4. The rubber composition for a hose according to claim 1 , wherein the acrylonitrile amount of the hydrogenated acrylonitrile butadiene rubber is from 18 to 22 mass %.5. The rubber composition for a hose according to claim 1 , wherein the content of the peroxide is from 2.8 to 6 parts by mass per 100 parts by mass of the hydrogenated acrylonitrile butadiene rubber.6. The rubber ...

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Номер записи: 78

23-04-2020 дата публикации

RUBBER COMPOSITE, PROCESSING METHOD, RUBBER TUBE APPLYING COMPOSITE, AND MANUFACTURING METHOD

Номер: US20200123353A1

Автор: FU Zhi Sheng, WU An Yang, Xu Tao

Принадлежит: HANGZHOU XINGLU TECHNOLOGIES CO., LTD

The present invention discloses a rubber composition, a processing method for obtaining the rubber composition, a rubber hose using the rubber composition and a production method thereof. The rubber composition comprises, in parts by weight, 100 parts of a rubber matrix, 1.5-8 parts of a crosslinking agent, 50-200 parts of a reinforcing filler, 10-100 parts of a plasticizer, and also 0.2-8 parts of an auxiliary crosslinking agent, 2-15 parts of a metal oxide, 1-3 parts of a stabilizer and 1-5 parts of polyethylene glycol, wherein, with respect to 100 parts by weight of total amount of said rubber matrix, said rubber matrix comprises a branched polyethylene with a content represented as A, in which 0 Подробнее

Номер записи: 79

23-04-2020 дата публикации

Olefin Polymer And Method For Preparing Same

Номер: US20200123357A1

Автор: Hong Dae Sik, Hong Yoon Ki, Kim Joong Soo, KIM SI YONG, SHIN Eun Young, SONG Eun Kyoung, SONG Nak-Kyu, YOU Young Suk

Принадлежит: LG CHEM, LTD.

In the present invention, there is provided an olefin polymer which has excellent processability and dimensional stability and thus is useful for hollow molding of pipes or the like. 1. An olefin polymer having a 2L Bloma swell value of 1.2 to 2.2 which is determined according to the following Equation 1:{'br': None, 'i': c', 'M', 'c', 'c, 'sub': 'z+1', '2L Bloma swell=(Capillary swell)×1+()×2+3\u2003\u2003[Equation 1]'}{'sup': '7', 'in the above equation 1, c1=1.27, c2=2.40E, and c3=−0.940, and'}{'sub': 'z+1', 'the Capillary swell is a value of the olefin polymer measured using a capillary rheometer at a temperature of 210° C. and a shear rate of 700/s, and Mis a Z-average molecular weight of the olefin polymer measured using a gel permeation chromatography (GPC) at a temperature of 160° C. with respect to the olefin polymer to be measured.'}2. The olefin polymer of claim 1 , wherein the Z-average molecular weight (Mz+1) is 300 claim 1 ,000 g/mol to 6 claim 1 ,000 claim 1 ,000 g/mol.3. The olefin polymer of claim 1 , wherein the capillary swell is 1.3 to 2.2.4. The olefin polymer of claim 1 , wherein it has a density of 0.930 g/cmto 0.960 g/cmmeasured according to ASTM D1505.5. The olefin polymer of claim 1 , wherein it has a melt index of 0.01 g/10 min to 2 g/10 min which is measured at a temperature of 190° C. under a load of 2.16 kg according to standard ASTM D1238.6. The olefin polymer of claim 1 , wherein it has a polydispersity index (PDI) of 2.5 to 30.7. The olefin polymer of claim 1 , which is a copolymer of ethylene and alpha olefin.8. The olefin polymer of claim 1 , which is a copolymer of ethylene; and 1-octene claim 1 , 1-hexene or 1-butene.10. The method for preparing an olefin polymer of claim 9 , wherein the second metallocene compound and third metallocene compound are each independently in an amount of 50 to 200 parts by weight based on 100 parts by weight of the first metallocene compound.11. The method for preparing an olefin polymer of claim 9 , ...

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Номер записи: 80

23-04-2020 дата публикации

COMPOSITION AND METHOD FOR PRODUCING COMPOSITION

Номер: US20200123370A1

Автор: Martin Arthur, Qu Cheng

Принадлежит:

A composition containing polytetrafluoroethylene and zeolite supporting a metal, and a method for producing the composition. Also disclosed is a composition containing an organic solvent and zeolite supporting a metal, and a molded article made from the compositions. 1. A composition comprising:polytetrafluoroethylene; andzeolite supporting a metal.2. The composition according to claim 1 ,wherein the polytetrafluoroethylene is in the form of particles having an average particle size of 100 to 1000 μm.3. The composition according to claim 1 ,wherein the zeolite is present in a proportion of 0.001 mass % or more and 5 mass % or less relative to the total amount of the polytetrafluoroethylene and the zeolite.4. The composition according to claim 1 , further comprising an organic solvent.5. A composition comprising:an organic solvent; andzeolite supporting a metal.6. The composition according to claim 4 ,wherein the organic solvent is an extrusion aid for polytetrafluoroethylene.7. The composition according to claim 4 ,wherein the organic solvent is a hydrocarbon solvent.8. The composition according to claim 1 ,wherein the metal is at least one selected from the group consisting of copper, zinc, and silver.9. The composition according to claim 1 ,wherein the zeolite is in the form of particles having an average particle size of smaller than 10 μm.10. The composition according to claim 9 ,wherein the zeolite is substantially free from particles having a particle size of 10 μm or greater.11. A method for producing a composition comprising the steps of:(1) mixing an extrusion aid, zeolite supporting a metal, and polytetrafluoroethylene to prepare a mixture (1);(2) extruding the mixture (1) to prepare a mixture (2); and(3) removing the extrusion aid from the mixture (2) to provide a composition containing the polytetrafluoroethylene and the zeolite supporting a metal.12. The production method according to claim 11 ,wherein the step (1) includes the steps of:(1-1) mixing the ...

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Номер записи: 81

23-04-2020 дата публикации

OIL LEAKAGE REPAIRING MATERIAL, OIL LEAKAGE REPAIRING METHOD, AND PIPE

Номер: US20200124224A1

Автор: Abe Tetsuya, Kubota Takaaki, Mori Yasutaka, NISHIO Takeshi

Принадлежит:

Provided is an oil leakage repairing material, wherein the oil leakage repairing material is a curable composition, oil absorption of the oil leakage repairing material before curing is 100% or greater, and oil absorption of the oil leakage repairing material after curing is 50% or less. 1. An oil leakage repairing material , wherein:the oil leakage repairing material is a curable composition;oil absorption of the oil leakage repairing material before curing is 100% or greater; andoil absorption of the oil leakage repairing material after curing is 50% or less.2. The oil leakage repairing material according to claim 1 ,wherein the oil leakage repairing material is a putty.3. The oil leakage repairing material according to claim 1 ,wherein the oil leakage repairing material includes an elastomer.4. The oil leakage repairing material according to claim 3 ,wherein the elastomer includes styrene as a constitutional component.5. The oil leakage repairing material according to claim 3 ,wherein an amount of the elastomer is greater than 0% by mass but 35% by mass or less.6. The oil leakage repairing material according to claim 1 ,wherein the curable composition is an active energy ray-curable composition.7. The oil leakage repairing material according to claim 6 ,wherein the oil leakage repairing material includes monofunctional (meth)acrylate free from a hydroxyl group, polyfunctional (meth)acrylate, and a photo-radical initiator.8. The oil leakage repairing material according to claim 7 ,wherein an amount of the polyfunctional (meth)acrylate is greater than 0% by mass but 20% by mass or less.9. The oil leakage repairing material according to claim 1 ,wherein a glass transition temperature of the oil leakage repairing material after curing is 150° C. or lower.10. An oil leakage repairing method claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00006', 'claim 6'}, 'applying the oil leakage repairing material according to , which is an active energy ray-curable composition ...

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Номер записи: 82

03-06-2021 дата публикации

POLYMER COMPOSITION COMPRISING A CROSSLINKABLE POLYOLEFIN WITH HYDROLYSABLE SILANE GROUPS AND CATALYST

Номер: US20210163775A1

Автор: Anker Martin, Dahlen Kristian, Fagrell Ola, Hellstrom Stefan, HERMANSSON Asa, Nylander Perry, SULTAN Bernt-Ake

Принадлежит:

The present invention relates to a polymer composition, which is a silanol condensation catalyst masterbatch, comprises a matrix, comprising a silane containing drying agent, and at least one silanol condensation catalyst, wherein each catalyst has a water content which is 0.1% by weight, or lower, and is selected from: 111-. (canceled)12. A method of making a polymer composition , which is a silanol condensation catalyst masterbatch , comprising:mixing a polymer matrix with a silane containing drying agent; andadding at least one previously dried silanol condensation catalyst to said mixture of polymer matrix and silane containing drying agent to form said polymer composition,wherein each catalyst has a water content which is 0.1% by weight, or lower, and is selected from: {'br': None, 'sub': '3', 'ArSOH\u2003\u2003(I)'}, 'i) a compound of formula I'}or a precursor thereof, whereinAr is an 1 to 4 alkyl groups substituted aryl, wherein the aryl is phenyl or naphthyl, and wherein each alkyl group, independently, is a linear or branched alkyl with 10 to 30 carbons, wherein the total number of carbons in the alkyl groups is in the range of 20 to 80 carbons;ii) a derivative of i) selected from the group consisting of an anhydride, an ester, an acetylate, an epoxy blocked ester and an amine salt thereof which is hydrolysable to the corresponding compound of formula I; andiii) a metal salt of i) wherein the metal ion is selected from the group consisting of copper, aluminum, tin and zinc.13. The method according to claim 12 , wherein the polymer composition comprises the silane containing drying agent in an amount that renders the water content of the polymer composition to be 100 ppm or less.14. The method according to claim 12 , wherein Ar is naphthyl.15. The method according to claim 12 , wherein each catalyst is selected from{'sub': '12', 'a) C-alkylated naphthyl sulfonic acids;'}b) a derivative of a) selected from the group consisting of an anhydride, an ester, an ...

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Номер записи: 83

17-05-2018 дата публикации

Plasticizer composition

Номер: US20180134870A1

Автор: Chantana Sae-Lim, Churat Tiyapiboonchaiya

Принадлежит: SCG Chemicals PCL, Thai Plastic And Chemicals Public Co, Thai Plastic And Chemicals Public Co Ltd

The invention relates to a plasticizer composition comprising a terephthalic acid di-ester and an ester having the following formula (I): wherein R 1 and R 2 are the same or different and represent a straight chain, branched or cyclic hydrocarbyl group. R 1 and R 2 in formula (I) have from 1 to 15 carbon atoms. The invention further relates to a polymer composition comprising a plasticizer composition comprising a terephthalic acid di-ester and an ester having the following formula (I).

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Номер записи: 84

17-05-2018 дата публикации

Fluorinated polymer composition

Номер: US20180134886A1

Автор: Alejandra REYNA-VALENCIA, Anthony Bonnet, Barbara RAMFEL (EPOUSE WIEGERT), Christophe DEGOULET, Cyrille Mathieu

Принадлежит: Arkema France SA

The present invention concerns a fluorinated polymer composition, methods for producing same, and products that can be produced from said composition. More particularly, the invention concerns a thermoplastic polymer composition comprising the following components A, B and C: A- a polyvinylidene fluoride (PVDF) homopolymer comprising a fraction of ultra high molecular weight chains (UHMCF); B- a vinylidene fluoride (VDF) elastomeric copolymer and at least one other fluorinated comonomer copolymerisable with VDF, and C- a VDF homopolymer having a lower viscosity than component A.

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Номер записи: 85

09-05-2019 дата публикации

Poly(phenylene ether) composition, lined pipe and injection molded article prepared therefrom, and method of controlling microbial growth during water transportation and storage

Номер: US20190136032A1

Автор: Christiaan Henricus Johannes Koevoets, Johannes E. Fortuijn

Принадлежит: SABIC Global Technologies BV

A lined pipe includes an outer layer and an inner layer. The outer layer contains crosslinked polyethylene, polypropylene, poly(1-butene), or poly(vinyl chloride). The inner layer contains poly(phenylene ether), polystyrene, and, optionally, a hydrogenated block copolymer. The inner layer exhibits low stimulation of bacterial growth. Also described are a composition exhibiting low stimulation of bacterial growth, an injection molded article, and a method of controlling microbial growth during transportation or storage of water.

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Номер записи: 86

10-06-2021 дата публикации

IMPROVING RHEOLOGICAL PROPERTIES OF THERMOPLASTIC POLYOLEFIN COMPOSITIONS

Номер: US20210171749A1

Автор: Fawaz Joel, Gadgoli Umesh Balkrishna, Kaliappan Senthil Kumar, Kumar Ashish

Принадлежит:

The present invention relates to process for preparing a thermoplastic polyolefin composition comprising a) providing a reactive polyolefin composition comprising a polyolefin resin and a rheology modifier, which is free of peroxide initiator; b) heating the reactive polyolefin composition to a temperature of 180° C. to 300° C.; and c) subjecting the reactive polyolefin composition to a specific energy of equal to or more than 0.15 kWh/kg to obtain the thermoplastic polyolefin composition, the thermoplastic polyolefin composition obtainable by said process, an article comprising said thermoplastic polyolefin composition and the use of a rheology modifier, which is free of peroxide initiator, in said reactive polyolefin composition for increasing the viscosity at a constant shear stress of 747 Pa of the thermoplastic polyolefin composition, eta(Comp), by reacting the polyolefin resin and the rheology modifier at a temperature in the range of from 180° C. to 300° C. and a specific energy equal to or greater than 0.15 kWh/kg. 1. A reactive polyolefin composition , which is a precursor to a thermoplastic polyolefin composition , comprising:(A) a polyolefin resin; and(B) a rheology modifier, which is free of a peroxide initiator,wherein the polyolefin resin (A) and the rheology modifier (B) are reactive to form the thermoplastic polyolefin composition at a temperature in the range of from 180° C. to 300° C. and a specific energy equal to or greater than 0.15 kWh/kg.2. The reactive polyolefin composition according to claim 1 , wherein the rheology modifier (B) is a cyclic imide derivative and/or wherein the polyolefin resin (A) and the rheology modifier (B) are reactive to form the thermoplastic polyolefin in a compounder and/or wherein the thermoplastic polyolefin composition is formed by compounding.3. The reactive polyolefin composition according to claim 1 , wherein the rheology modifier (B) is present in the reactive polyolefin composition in an amount of up to 0.5 ...

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Номер записи: 87

24-05-2018 дата публикации

INK SUPPLY TUBE

Номер: US20180141342A1

Автор: NAKANO Sadaaki

Принадлежит:

An ink supply tube of the present invention comprising an inner layer to come into contact with ink, a middle layer having at least three layers, and an outer layer, wherein the middle layer includes a first middle layer, a second middle layer, and a third middle layer, the inner layer comprises one of an ethylene-tetrafluoroethylene copolymer resin, a tetrafluoroethylene-perfluoroalkoxy alkane copolymer resin, and a modified perfluoroalkoxy-based resin, each having a solvent resistance, an oxygen barrier property, and a low moisture permeability, the first middle layer comprises a polyamide resin having a fusibility with the inner layer or the second middle layer, the second middle layer comprises an ethylene-vinyl alcohol copolymer resin having an oxygen barrier property, the third middle layer comprises an adhesive polyolefin resin having a fusibility with the second middle layer or the outer layer, and having a low moisture permeability, and the outer layer comprises a thermoplastic resin or elastomer. Accordingly, an ink supply tube for an inkjet printer is provided that has a more excellent oxygen barrier property and a more excellent low moisture permeability in addition to an excellent solvent resistance and an excellent flexibility. 13-. (canceled)4. An ink supply tube comprising an inner layer to come into contact with ink , a middle layer having at least three layers , and an outer layer , whereinthe middle layer includes a first middle layer, a second middle layer, and a third middle layer,the inner layer comprises one of an ethylene-tetrafluoroethylene copolymer resin, a tetrafluoroethylene-perfluoroalkoxy alkane copolymer resin, and a modified perfluoroalkoxy-based resin, each having a solvent resistance, an oxygen barrier property, and a low moisture permeability,the first middle layer comprises one of a polyamide resin, a polyamide-based elastomer, adhesive polyolefin, or polyurethane resin, each having a fusibility with the inner layer and the ...

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Номер записи: 88

31-05-2018 дата публикации

IMPROVED HETEROPHASIC POLYPROPYLENE

Номер: US20180148571A1

Автор: Bouyahyi Miloud, Duchateau Robbert, Jasinska-Walc Lidia, Steenbakkers-Menting Henrica Norberta Alberta Maria, Terpsma Jelle

Принадлежит:

The present invention relates to a composition comprising: a heterophasic polypropylene containing i) a matrix phase of a propylene homopolymer and/or a propylene copolymer with up to 3 wt. % of ethylene and/or at least one C-Cα-olefin, the wt. % based on the weight of the copolymer and ii) a disperse phase of an ethylene-C-Cα-olefin copolymer, wherein the ethylene content is at least 40 wt. % based on the weight of the ethylene-C-Cα-olefin copolymer, one or more of a compatibiliser, wherein the compatibiliser is i) a non-aromatic polyester having an average M/E ratio of at least 10 and/or ii) a block copolymer comprising a polypropylene block and a polyester block, said polyester being a non-aromatic polyester and having an average M/E ratio of at least 10, wherein M is the number of backbone carbon atoms in the polyester, not including the carbonyl carbons and E is the number of ester groups in the polyester. 1. A composition comprising{'sub': 4', '8', '3', '8', '3', '8, 'a heterophasic polypropylene containing i) a matrix phase of a propylene homopolymer and/or a propylene copolymer with up to 3 wt. % of ethylene and/or at least one C-Cα-olefin, the wt. % based on the weight of the copolymer and ii) a disperse phase of an ethylene-C-Cα-olefin copolymer, wherein the ethylene content is at least 40 wt. % based on the weight of the ethylene-C-Cα-olefin copolymer,'}a compatibiliser, wherein the compatibiliser is i) a non-aromatic polyester having an average M/E ratio of at least 10 and/or ii) a block copolymer comprising a polypropylene block and a polyester block, said polyester being a non-aromatic polyester and having an average M/E ratio of at least 10, wherein M is the number of backbone carbon atoms in the polyester, not including the carbonyl carbons and E is the number of ester groups in the polyester.2. The composition of wherein the polyester has an average M/E ratio of from 12-32.3. The composition of wherein the amount of heterophasic polypropylene is at ...

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Номер записи: 89

17-06-2021 дата публикации

RUBBER COMPOSITION HAVING IMPROVED ELECTRICAL INSULATION PROPERTIES FOR REDUCING GALVANIC CORROSION

Номер: US20210179832A1

Автор: PARK Jong Min

Принадлежит:

A rubber composition having improved electrical insulation properties for reducing galvanic corrosion, a method of preparing the composition, and a rubber hose for vehicles using the composition are disclosed. The rubber composition includes a base polymer, a reinforcing agent, an anti-aging agent, an activating agent, a plasticizer, and a crosslinking agent, and has electrical insulation resistance (10Ω·cm) of 50 or more. 1. A rubber composition for preventing galvanic corrosion , the rubber composition comprising:a base polymer, a reinforcing agent, an anti-aging agent, an activating agent, a plasticizer, and a crosslinking agent,wherein the base polymer comprises a first ethylene propylene diene monomer (EPDM) rubber and a second EPDM rubber,wherein the first EPDM rubber is EPDM comprising 8% to 10% of 5-ethylidene-2-norbornene (ENB),wherein the second EPDM rubber is EPDM comprising 70% to 75% of ethylene, andwherein a weight ratio of the first EPDM rubber and the second EPDM rubber is 30 to 50:50 to 70.2. The rubber composition of claim 1 , wherein the rubber composition has electrical insulation resistance (10Ω·cm) of 50 or more.3. The rubber composition of claim 1 , wherein the reinforcing agent comprises carbon black and an inorganic filler claim 1 , and wherein claim 1 , based on 100 parts by weight of the base polymer claim 1 , an amount of the carbon black is 30 to 50 parts by weight and an amount of the inorganic filler is 25 to 45 parts by weight.4. The rubber composition of claim 3 , wherein the carbon black has dibutyl phthalate (DBP) absorption (ml/100 g) of 40 to 150 and I2 (mg/g) of 10 to 50.5. The rubber composition of claim 3 , wherein the inorganic filler is silica claim 3 , and wherein the silica has Brunauer claim 3 , Emmett claim 3 , and Teller (BET) surface area (m/g) of 180 to 230 and a density (g/l) of 120 to 160.6. The rubber composition of claim 1 , wherein an amount of the anti-aging agent is 0.5 to 1.5 parts by weight based on 100 parts ...

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Номер записи: 90

11-06-2015 дата публикации

Polyesters and articles made therefrom

Номер: US20150158973A9

Автор: Bhuma Rajagopalan, Fredrik Nederberg, Julius Uradnisheck

Принадлежит: EI Du Pont de Nemours and Co

Disclosed herein are polyesters and articles made therefrom. The article comprising a substrate comprising a first surface and a second surface, the second surface in contact with an outside environment, wherein the substrate comprises a polymer comprising poly(trimethylene furandicarboxylate) (PTF), and wherein the polymer provides an improvement in gas barrier properties of the substrate as compared to a substrate comprising nascent polyethylene terephthalate) (PET).

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Номер записи: 91

01-06-2017 дата публикации

Multimodal polyethylene composition with high pressure resistance

Номер: US20170152376A1

Автор: Alexandra Romina ALBUNIA, Hermann Prokschi, Qizheng Dou, Tanja Piel, Yi Liu

Принадлежит: Borealis AG

The present invention relates to a multimodal polyethylene composition which can be manufactured into pipes showing improved pressure resistance comprising a high density multimodal ethylene polymer component (A) having a density of at least 930 kg/m 3 , and a MFR 21 of not more than 15 g/10 min, wherein said composition exhibits a LAOS-NLF defined as L   A   O   S - N   L   F =  G 1 ′ G 3 ′  where G 1 ′—first order Fourier Coefficient G 3 ′—third order Fourier Coefficient of at least 1.7. Such a polyethylene composition is useful for the manufacture of pressure pipes that exhibit improved pressure resistance and creep resistance and do not undergo sagging. Further disclosed is a process for the production of a pipe using such a multimodal polyethylene composition and a pipe comprising such a multimodal polyethylene composition.

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Номер записи: 92

16-06-2016 дата публикации

Novel Polymer Compositions and Methods of Making and Using Same

Номер: US20160168290A1

Автор: Mark L. Hlavinka, Paul J. DesLauriers, QING Yang, William B. Beaulieu

Принадлежит: Chevron Phillips Chemical Co LP

A polymer reactor-blend comprising at least a first component having a polydispersity index of greater than about 20 and is present in an amount of from about 1 wt. % to about 99 wt. % based on the total weight of the polymer and a second component having a polydispersity index of less than about 20 and is present in an amount of from about 1 wt. % to about 99 wt. % based on the total weight of the polymer wherein a molecular weight distribution of the second component lies within a molecular weight distribution of the first component.

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Номер записи: 93

15-06-2017 дата публикации

MULTIMODAL POLYETHYLENE

Номер: US20170166734A1

Автор: Bekink Gerrit-Jan, GARG Priya, JANSSEN Eric Johannes Cornelia

Принадлежит:

The invention is directed to polyethylene having a multimodal molar mass distribution, having a density in the range from 940 to 948 kg/m, having an MFI in the range from 1.0 to 3.5 g/10 min and comprising from 45 to 47% by weight of an ethylene copolymer A and from 53 to 55% by weight of an ethylene copolymer B, where all percentages are based on the total weight of the composition wherein ethylene-1-butene copolymer A has a viscosity number in the range between 70 and 110 cm/g and a density between 960 and 973 kg/m. The polyethylene is suitable to be applied in pipe coating applications. 1. Polyethylene having a bimodal molar mass distribution , having a density in the range from 940 to 948 kg/m , having an MFI in the range from 1.0 to 3.5 g/10 min and comprising from 45 to 47% by weight of ethylene-1-butene copolymer A and from 53 to 55% by weight of an ethylene copolymer B , where all percentages are based on the total weight of the composition;{'sup': 3', '3, 'wherein ethylene-1-butene copolymer A has a viscosity number in the range between 70 and 110 cm/g and a density between 960 and 973 kg/m.'}2. Polyethylene according to claim 1 , characterized in that ethylene-1-butene copolymer A has a viscosity number in the range between 90 and 100 cm/g.3. Polyethylene according to claim 1 , characterized in that ethylene-1-butene copolymer A has a density between 963 and 967 kg/m.4. Polyethylene according to claim 1 , having a density in the range from 943 to 947 kg/mand having an MFI in the range from 2.0 to 2.5 g/10 min.5. A process for the preparation of polyethylene according to claim 1 , with a two-step slurry polymerisation process in the presence of a catalyst system comprising(I) the solid reaction product obtained from the reaction of:a) a hydrocarbon solution containing1) an organic oxygen containing magnesium compound or a halogen containing magnesium compound and2) an organic oxygen containing titanium compound and{'sub': n', '3-n, 'b) an aluminium ...

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Номер записи: 94

15-06-2017 дата публикации

POLYAMIDE COMPOSITE RESIN COMPOSITION FOR FUEL FILLER PIPE

Номер: US20170166745A1

Автор: CHOI Cheol Kyu, Kim Ki Hong, Kwon Bo Ram, Lee Dong Chul, RYU Dong Yol, SEO Keum Suk, YOUN Jee Young

Принадлежит:

A polyamide composite resin composition for a fuel filler pipe includes 41 to 77% by weight of polyamide 6, 5 to 15% by weight of m-xylenediamine (MXD)-based modified nylon, 14 to 30% by weight of a maleic anhydride-grafted ethylene-octene copolymer, a maleic anhydride-grafted ethylene-propylene-diene monomer, or a mixture thereof, and 3 to 10% by weight of mixed clay. 1. A polyamide composite resin composition for a fuel filler pipe , the polyamide composite resin comprising:41 to 77% by weight of polyamide 6;5 to 15% by weight of m-xylenediamine (MXD)-based modified nylon;14 to 30% by weight of a maleic anhydride-grafted ethylene-octene copolymer, a maleic anhydride-grafted ethylene-propylene-diene monomer, or a mixture thereof; and3 to 10% by weight of mixed clay.2. The polyamide composite resin composition according to claim 1 , wherein the m-xylenediamine (MXD)-based modified nylon is one or more selected from the group consisting of m-xylenediamine 6 nylon claim 1 , aromatic nylon and amorphous nylon.3. The polyamide composite resin composition according to claim 1 , wherein the mixed clay is immobilization-pretreated through mixing with two or more selected from the group consisting of tabular montmorillonite claim 1 , hectorite claim 1 , saponite and vermiculite.4. The polyamide composite resin composition according to claim 3 , wherein claim 3 , in the immobilization pretreatment claim 3 , pre-treatment into an organic material comprising one or more functional groups selected from the group consisting of primary to quaternary ammonium claim 3 , phosphonium claim 3 , maleate claim 3 , succinate claim 3 , acrylate claim 3 , benzylic hydrogen claim 3 , dimethyl distearyl ammonium and oxazoline is performed.5. The polyamide composite resin composition according to claim 1 , wherein the polyamide composite resin composition further comprises one or more selected from the group consisting of stearic acid claim 1 , stearyl alcohol claim 1 , and stearamide in an ...

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Номер записи: 95

30-05-2019 дата публикации

Polyethylene compositions, and articles made therefrom

Номер: US20190161602A1

Автор: Dane Chang, Ronald Wevers, Siddharth Ram ATHREYA

Принадлежит: Dow Global Technologies LLC

The invention provides a composition suitable for use in pipe applications, the composition comprising: an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram; a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.930 to 0.960 g/cc; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.

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Номер записи: 96

21-05-2020 дата публикации

Bimodal Polyethylene Resins and Pipes Produced Therefrom

Номер: US20200157260A1

Автор: Inn Yongwoo, LANIER Elizabeth M., Rohatgi Vivek, Sukhadia Ashish M.

Принадлежит:

Disclosed herein are ethylene-based polymers generally characterized by a density of at least 0.94 g/cm, a high load melt index from 4 to 20 g/10 min, a zero-shear viscosity at 190° C. from 20,000 to 400,000 kPa-sec, and a relaxation time at 190° C. from 225 to 3000 sec. These ethylene polymers can be produced by peroxide-treating a broad molecular weight distribution Ziegler-catalyzed resin, and can be used in large diameter, thick wall pipes and other end-use applications. 1. A process for preparing an ethylene polymer , the process comprising:contacting a base resin with a peroxide compound to produce the ethylene polymer, wherein the ethylene polymer is characterized by:{'sup': '3', 'a density of at least about 0.94 g/cm;'}{'sub': '21', 'a HLMI (I) in a range from about 4 to about 20 g/10 min;'}{'sub': '0', 'a zero-shear viscosity (η) at 190° C. in a range from about 20,000 to about 400,000 kPa-sec; and'}{'sub': 'η', 'a relaxation time (τ) at 190° C. in a range from about 225 to about 3000 sec.'}2. The process of claim 1 , wherein the base resin is characterized by:{'sup': '3', 'a density of at least about 0.94 g/cm;'}{'sub': '21', 'a HLMI (I) in a range from about 4 to about 25 g/10 min;'}a Mw in a range from about 200,000 to about 500,000 g/mol; anda ratio of Mw/Mn in a range from about 12 to about 40.3. The process of claim 2 , wherein: a Mn in a range from about 8,000 to about 20,000 g/mol;', 'a Mz in a range from about 1,000,000 to about 2,500,000 g/mol; and', {'sub': '5', 'a ratio of HLMI/Iin a range from about 20 to about 45; and'}], 'the base resin hasthe base resin comprises an ethylene homopolymer, an ethylene/1-butene copolymer, an ethylene/1-hexene copolymer, an ethylene/1-octene copolymer, or a combination thereof.4. The process of claim 3 , wherein:the base resin is produced using a Ziegler-Natta catalyst system; andthe base resin comprises a higher molecular weight component and a lower molecular weight component; wherein: [{'sup': '3', 'a density ...

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Номер записи: 97

21-05-2020 дата публикации

A POLYETHYLENE PIPE

Номер: US20200157324A1

Автор: BERTET Marie Laure, Herbst Heinz, WEYLAND Tania

Принадлежит: BASF SE

A polyethylene pipe comprising components A) and B), wherein component A) is a hindered amine light stabilizer containing a triazine residue, component B) is a natural or synthetic hydrotalcite and the weight ratio of component A) to component B) is 1:10 to 10:1. 1. A polyethylene pipe comprising components A) and B) , whereincomponent A) is a hindered amine light stabilizer comprising a triazine residue,component B) is a natural or synthetic hydrotalcite, anda weight ratio of component A) to component B) is 1:10 to 10:1.5. The polyethylene pipe according to claim 1 , wherein component B) is at least one selected from the group consisting of magnesium aluminum hydroxide carbonate hydrate and zinc aluminum hydroxide carbonate hydrate.6. The polyethylene pipe according claim 5 , further comprising a component C) which is a phenolic antioxidant.7. The polyethylene pipe according to claim 1 , further comprising a components)) which is at least one compound selected from the group consisting of phosphites claim 1 , phosphonites claim 1 , hydroxylamines claim 1 , tocopherols and tocopherol acetates.8. The polyethylene pipe according to claim 6 , wherein the phenolic antioxidant is 1 claim 6 ,3 claim 6 ,5-tris(3 claim 6 ,5-di-tert-butyl-4-hydroxybenzyl)-2 claim 6 ,4 claim 6 ,6-trimethylbenzene; ethylene bis[3 claim 6 ,3-his(3-tert-butyl4-hydroxyphenyl)butyrate] or 1 claim 6 ,3 claim 6 ,5-tris(3 claim 6 ,5-di-tert-butyl-4-hydroxybenzyl)-isocyanurate.9. The polyethylene pipe according to claim 7 , wherein component D) is a phosphite.10. The polyethylene pipe according to claim 1 , further comprising a pigment.11. The polyethylenepipe according to claim 1 , wherein the polyethylene is selected from the group consisting of high densit' polyethylene (HD-PE) claim 1 , medium density polyethylene (MD-PE) claim 1 , low density polyethylene (LD-PE) claim 1 , linear low density polyethylene (LLD-PE) claim 1 , metallocene polyethylene claim 1 , crosslinked polyethylene (PE-X) claim 1 ...

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Номер записи: 98

21-05-2020 дата публикации

THERMOPLASTIC RESIN COMPOSITION, MOLDED OBJECT, AND PRODUCTION METHODS THEREFOR

Номер: US20200157325A1

Автор: GEHO Kosuke, Kito Masayuki, SAKO Mitsutaka, TAKAHASHI Goro

Принадлежит: TOYOTA BOSHOKU KABUSHIKI KAISHA

A thermoplastic resin composition, a molded body, and first and second production methods are disclosed. The thermoplastic resin composition contains a polyolefin resin, a polyamide resin, and a modified elastomer and shows non-Newtonian properties in a fluidized state. The molded body includes the thermoplastic resin composition. The first production method includes molding the thermoplastic resin composition at a shear rate of 80 secor more and a standby step in which resin composition is on standby at a shear rate of 0 secor more but less than 80 sec. The second production method includes molding the resin composition at a shear rate Xto obtain part of a molded body and molding the resin composition at a shear rate Xto obtain another part of the molded body, wherein an absolute value of a difference between Xand Xis 200 secor more. 1. A thermoplastic resin composition comprising:a polyolefin resin;a polyamide resin; anda modified elastomer having a reactive group that reacts with the polyamide resin,the thermoplastic resin composition showing non-Newtonian properties in a fluidized state.2. The thermoplastic resin composition according to claim 1 , wherein when a melt viscosity at a temperature of 200° C. and a shear rate of 12.16 secis defined as V(Pa·s) and a melt viscosity at a temperature of 200° C. and a shear rate of 608.0 secis defined as V(Pa·s) claim 1 , a ratio V/Vis 6.5 or more.3. The thermoplastic resin composition according to claim 2 , wherein the melt viscosity Vis 1500 Pa·s or more.4. The thermoplastic resin composition according to claim 1 , wherein a MFR at a temperature of 230° C. and a load of 2.16 kg is 20 g/10 min or less.5. The thermoplastic resin composition according to claim 1 , having:a continuous phase (A) formed of the polyolefin resin; anda dispersed phase (B) formed of the polyamide resin and the modified elastomer and dispersed in the continuous phase (A).6. The thermoplastic resin composition according to claim 1 , being used in a ...

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Номер записи: 99

11-09-2014 дата публикации

Heat-shrinkable tube having tearability

Номер: US20140255633A1

Автор: Kohei Yuri, Masahiro Suzuki, Masaru Miyoshi

Принадлежит: Junkosha Co Ltd

An object of the present invention is to provide a tube which can be easily torn and has a large heat-shrinkability at a low temperature. The tube of the present invention is a heat-shrinkable tube having tearability, including a mixture of a fluorine resin and a different kind of resin from the fluorine resin, in which an amount of change in loss energy, ΔE loss, with change in temperature from 175° C. to 185° C. is a positive value.

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Номер записи: 100