WO2001072873A3 - Process for producing high melt flow polymers - Google Patents

Process for producing high melt flow polymers Download PDF

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Publication number
WO2001072873A3
WO2001072873A3 PCT/US2001/009838 US0109838W WO0172873A3 WO 2001072873 A3 WO2001072873 A3 WO 2001072873A3 US 0109838 W US0109838 W US 0109838W WO 0172873 A3 WO0172873 A3 WO 0172873A3
Authority
WO
WIPO (PCT)
Prior art keywords
free radical
radical generator
pellet
polyolefin
pellets
Prior art date
Application number
PCT/US2001/009838
Other languages
French (fr)
Other versions
WO2001072873A2 (en
Inventor
Marios Avgousti
Alex Kharazi
Original Assignee
Union Carbide Chem Plastic
Marios Avgousti
Alex Kharazi
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 Union Carbide Chem Plastic, Marios Avgousti, Alex Kharazi filed Critical Union Carbide Chem Plastic
Priority to EP01920819A priority Critical patent/EP1272548A2/en
Priority to AU2001247834A priority patent/AU2001247834A1/en
Priority to KR1020027012971A priority patent/KR20020092408A/en
Priority to JP2001571800A priority patent/JP2003528953A/en
Priority to MXPA02009584A priority patent/MXPA02009584A/en
Publication of WO2001072873A2 publication Critical patent/WO2001072873A2/en
Publication of WO2001072873A3 publication Critical patent/WO2001072873A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/203—Solid polymers with solid and/or liquid additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/04—Monomers containing three or four carbon atoms
    • C08F110/06—Propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Abstract

Disclosed is a process for making polyolefin pellet products that contain at least one unreacted free radical generator which, when heated, undergo chemical degradation producing a low viscosity polymer. The process includes contacting the polyolefin pellet with the at least one free radical generator to coat the pellet, and contacting the coated pellets and at least one unreacted free radical generator at an elevated temperature and for a period of time sufficient for the free radical initiator to soak into the interior of the pellets. The process of the invention enables the production of polyolefin pellets having any desired amount of free radical generator and therefore, production of a desired viscosity, and improves the processability of the polyolefin pellet at customer fabrication facilities to thereby provide superior quality final articles.
PCT/US2001/009838 2000-03-29 2001-03-28 Process for producing high melt flow polymers WO2001072873A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP01920819A EP1272548A2 (en) 2000-03-29 2001-03-28 Process for producing high melt flow polymers
AU2001247834A AU2001247834A1 (en) 2000-03-29 2001-03-28 Process for producing high melt flow polymers
KR1020027012971A KR20020092408A (en) 2000-03-29 2001-03-28 Process for Producing High Melt Flow Polymers
JP2001571800A JP2003528953A (en) 2000-03-29 2001-03-28 Method for producing high melt flow polymer
MXPA02009584A MXPA02009584A (en) 2000-03-29 2001-03-28 Process for producing high melt flow polymers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/537,850 US6359077B1 (en) 2000-03-29 2000-03-29 Process for producing high melt flow polymers
US09/537,850 2000-03-29

Publications (2)

Publication Number Publication Date
WO2001072873A2 WO2001072873A2 (en) 2001-10-04
WO2001072873A3 true WO2001072873A3 (en) 2002-02-28

Family

ID=24144366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009838 WO2001072873A2 (en) 2000-03-29 2001-03-28 Process for producing high melt flow polymers

Country Status (8)

Country Link
US (1) US6359077B1 (en)
EP (1) EP1272548A2 (en)
JP (1) JP2003528953A (en)
KR (1) KR20020092408A (en)
CN (1) CN1416446A (en)
AU (1) AU2001247834A1 (en)
MX (1) MXPA02009584A (en)
WO (1) WO2001072873A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6673892B2 (en) * 2002-04-29 2004-01-06 Eastman Chemical Company Process for reducing residual free radical polymerizable monomer content of polymers
US7294681B2 (en) 2002-10-15 2007-11-13 Exxonmobil Chemical Patents Inc. Mutliple catalyst system for olefin polymerization and polymers produced therefrom
US7700707B2 (en) 2002-10-15 2010-04-20 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom
US6677395B1 (en) * 2002-11-27 2004-01-13 Basell Poliolefine Italia S.P.A. Irradiated, oxidized olefin polymer dispersing agents
US7632086B2 (en) 2003-10-03 2009-12-15 Exxonmobil Chemical Patents Inc. Melt fracture reduction
US7476352B2 (en) * 2004-05-21 2009-01-13 3M Innovative Properties Company Lubricated flow fiber extrusion
EP2223802B1 (en) * 2007-12-19 2015-09-09 Japan Polyethylene Corporation Resin for foamable layered product, foamable layered product, and foamed converted paper and heat-insulating container both obtained from the same
CN108003488A (en) * 2017-12-15 2018-05-08 大连工业大学 A kind of controllable PB Polybutene-1 material of melt index and preparation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49106551A (en) * 1973-02-09 1974-10-09
JPS5354247A (en) * 1976-10-27 1978-05-17 Furukawa Electric Co Ltd:The Preparation of organic peroxide impregnatedpolyolefinic resin pellets or gra nules
EP0512571A1 (en) * 1991-05-10 1992-11-11 Aztec Peroxides, Inc. High organic peroxide content polypropylene
EP0728796A2 (en) * 1995-02-21 1996-08-28 Shell Oil Company Process for improving processability of ultra low melt viscosity polymer
EP0785226A2 (en) * 1996-01-17 1997-07-23 Buna Sow Leuna Olefinverbund GmbH Method for regular and permanent distribution of peroxides in polyethylene

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451589A (en) * 1981-06-15 1984-05-29 Kimberly-Clark Corporation Method of improving processability of polymers and resulting polymer compositions
FR2613722B1 (en) * 1987-04-07 1990-11-23 Bp Chimie Sa PROCESS FOR THE MANUFACTURE OF PROPYLENE HOMOPOLYMER OR COPOLYMER GRANULES
US4761432A (en) * 1987-11-16 1988-08-02 Arco Chemical Company Coating of flame retardants onto a seed bead
US6204348B1 (en) * 1997-05-20 2001-03-20 Borealis Gmbh Modified polypropylenes of improved processability

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49106551A (en) * 1973-02-09 1974-10-09
JPS5354247A (en) * 1976-10-27 1978-05-17 Furukawa Electric Co Ltd:The Preparation of organic peroxide impregnatedpolyolefinic resin pellets or gra nules
EP0512571A1 (en) * 1991-05-10 1992-11-11 Aztec Peroxides, Inc. High organic peroxide content polypropylene
EP0728796A2 (en) * 1995-02-21 1996-08-28 Shell Oil Company Process for improving processability of ultra low melt viscosity polymer
EP0785226A2 (en) * 1996-01-17 1997-07-23 Buna Sow Leuna Olefinverbund GmbH Method for regular and permanent distribution of peroxides in polyethylene

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197520, Derwent World Patents Index; Class A17, AN 1975-33097W, XP002181342 *
PATENT ABSTRACTS OF JAPAN vol. 002, no. 093 (C - 019) 29 July 1978 (1978-07-29) *

Also Published As

Publication number Publication date
KR20020092408A (en) 2002-12-11
WO2001072873A2 (en) 2001-10-04
MXPA02009584A (en) 2003-05-14
AU2001247834A1 (en) 2001-10-08
JP2003528953A (en) 2003-09-30
CN1416446A (en) 2003-05-07
EP1272548A2 (en) 2003-01-08
US6359077B1 (en) 2002-03-19

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