MX2023006540A - Composiciones de polietileno para aplicaciones de cierre. - Google Patents

Composiciones de polietileno para aplicaciones de cierre.

Info

Publication number
MX2023006540A
MX2023006540A MX2023006540A MX2023006540A MX2023006540A MX 2023006540 A MX2023006540 A MX 2023006540A MX 2023006540 A MX2023006540 A MX 2023006540A MX 2023006540 A MX2023006540 A MX 2023006540A MX 2023006540 A MX2023006540 A MX 2023006540A
Authority
MX
Mexico
Prior art keywords
molecular weight
ethylene
weight component
alpha
less
Prior art date
Application number
MX2023006540A
Other languages
English (en)
Inventor
Keran Lu
Russell T Cooper
Mubashir Qamar Ansari
Fengyi Zhang
Original Assignee
Dow Global Technologies Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Global Technologies Llc filed Critical Dow Global Technologies Llc
Publication of MX2023006540A publication Critical patent/MX2023006540A/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0088—Molecular weight
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Sealing Material Composition (AREA)

Abstract

Una composición de polietileno que comprende adecuada para el uso en moldeo por inyección, la composición de polietileno comprende: de 2 % en peso a 25 % en peso de un componente de alto peso molecular que consiste en un copolímero de etileno/alfa-olefina, en donde el componente de alto peso molecular tiene una densidad de 0.910 g/cc a 0.971 g/cc, un índice de fusión (I2.16) de más de 0.5 g/10 min a menos de 1.5 g/10 min, una distribución de peso molecular (Mw/Mn) de 6.0 a 20.0; de 75 % en peso a 98 % en peso de un componente de bajo peso molecular que consiste en un homopolímero de etileno o un copolímero de etileno/alfa-olefina, en donde el homopolímero de etileno o un copolímero de etileno/alfa-olefina tiene una densidad de 0.920 g/cc a 0.971 g/cc, un índice de fusión (I2.16) de 5.0 g/10 min a 120 g/10 min y una distribución de peso molecular (Mw/Mn) de menos de 6.0; en donde la composición de polietileno tiene una anisotropía de contracción que es menor que la anisotropía de contracción del componente de bajo peso molecular.
MX2023006540A 2020-12-21 2021-12-16 Composiciones de polietileno para aplicaciones de cierre. MX2023006540A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063128245P 2020-12-21 2020-12-21
PCT/US2021/063796 WO2022140153A1 (en) 2020-12-21 2021-12-16 Polyethylene compositions for closure applications

Publications (1)

Publication Number Publication Date
MX2023006540A true MX2023006540A (es) 2023-06-16

Family

ID=79602019

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2023006540A MX2023006540A (es) 2020-12-21 2021-12-16 Composiciones de polietileno para aplicaciones de cierre.

Country Status (7)

Country Link
US (1) US20230407067A1 (es)
EP (1) EP4263701A1 (es)
AR (1) AR124405A1 (es)
CA (1) CA3202808A1 (es)
CL (1) CL2023001660A1 (es)
MX (1) MX2023006540A (es)
WO (1) WO2022140153A1 (es)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT513721A (es) 1953-01-27 1900-01-01
US3622521A (en) 1967-08-21 1971-11-23 Phillips Petroleum Co Olefin polymerization with chromium and titanium-containing compounds
US4011382A (en) 1975-03-10 1977-03-08 Union Carbide Corporation Preparation of low and medium density ethylene polymer in fluid bed reactor
US4302565A (en) 1978-03-31 1981-11-24 Union Carbide Corporation Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization
US4482687A (en) 1979-10-26 1984-11-13 Union Carbide Corporation Preparation of low-density ethylene copolymers in fluid bed reactor
US4508842A (en) 1983-03-29 1985-04-02 Union Carbide Corporation Ethylene polymerization using supported vanadium catalyst
DE68913375T3 (de) 1988-06-17 2002-05-02 Mitsui Chemicals Inc Olefinpolymerisationsverfahren und dabei anwendbarer Polymerisationskatalysator.
US5122494A (en) 1991-02-19 1992-06-16 Shell Oil Company Olefin polymerization catalyst
US5290745A (en) 1992-08-10 1994-03-01 Union Carbide Chemicals & Plastics Technology Corporation Process for producing ethylene polymers having reduced hexane extractable content
US6187866B1 (en) 1999-06-04 2001-02-13 Union Carbide Chemicals & Plastics Technology Corporation Staged reactor process
TW200504093A (en) 2003-05-12 2005-02-01 Dow Global Technologies Inc Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom
CA2798854C (en) * 2012-12-14 2020-02-18 Nova Chemicals Corporation Polyethylene compositions having high dimensional stability and excellent processability for caps and closures
NO3157967T3 (es) * 2014-11-13 2018-08-11

Also Published As

Publication number Publication date
AR124405A1 (es) 2023-03-22
WO2022140153A1 (en) 2022-06-30
EP4263701A1 (en) 2023-10-25
CL2023001660A1 (es) 2023-12-15
CA3202808A1 (en) 2022-06-30
US20230407067A1 (en) 2023-12-21

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