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PT768156E - Processo para degradacao de polimeros - Google Patents

Processo para degradacao de polimeros

Info

Publication number
PT768156E
PT768156E PT96307443T PT96307443T PT768156E PT 768156 E PT768156 E PT 768156E PT 96307443 T PT96307443 T PT 96307443T PT 96307443 T PT96307443 T PT 96307443T PT 768156 E PT768156 E PT 768156E
Authority
PT
Portugal
Prior art keywords
butylperoxy
melt
polyolefin
mixer
bis
Prior art date
Application number
PT96307443T
Other languages
English (en)
Inventor
James D Mccullough
John F Bradford
Original Assignee
Union Carbide Chem Plastic
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 filed Critical Union Carbide Chem Plastic
Publication of PT768156E publication Critical patent/PT768156E/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00Chemical modification of a polymer
    • C08F2810/20Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
PT96307443T 1995-10-13 1996-10-11 Processo para degradacao de polimeros PT768156E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/542,719 US5587434A (en) 1995-10-13 1995-10-13 Process for polymer degradation

Publications (1)

Publication Number Publication Date
PT768156E true PT768156E (pt) 2002-11-29

Family

ID=24164997

Family Applications (1)

Application Number Title Priority Date Filing Date
PT96307443T PT768156E (pt) 1995-10-13 1996-10-11 Processo para degradacao de polimeros

Country Status (6)

Country Link
US (1) US5587434A (pt)
EP (1) EP0768156B1 (pt)
AT (1) ATE222527T1 (pt)
DE (1) DE69623092T2 (pt)
ES (1) ES2177737T3 (pt)
PT (1) PT768156E (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3168450B2 (ja) * 1995-09-29 2001-05-21 住友化学工業株式会社 熱可塑性エラストマー組成物の製造方法
US6454976B1 (en) * 1996-06-26 2002-09-24 Union Carbide Chemicals & Plastics Technology Corporation Pelletizing of broad molecular weight polyethylene
US6255386B1 (en) 1996-12-31 2001-07-03 Kimberly-Clark Worldwide, Inc. Blends of polyolefin and poly(ethylene oxide) and process for making the blends
US5976694A (en) 1997-10-03 1999-11-02 Kimberly-Clark Worldwide, Inc. Water-sensitive compositions for improved processability
DE19746635B4 (de) 1997-10-22 2004-09-02 Deutsche Institute für Textil- und Faserforschung Stuttgart - Stiftung des öffentlichen Rechts Verfahren zur Herstellung von aus wäßriger Färbeflotte färbbaren modifizierten Polypropylengarnen sowie deren Verwendung
DE19755726A1 (de) * 1997-12-15 1999-06-17 Ticona Gmbh Verfahren zur Herstellung von thermoplastischen Kunststoff-Formmassen
US6187423B1 (en) * 1997-12-23 2001-02-13 Chevron Phillips Chemical Company Lc Peroxide modified hexene gas phase copolymer linear low density polyethylene in geomembrane applications
US6372850B2 (en) 1997-12-31 2002-04-16 Kimberly-Clark Worldwide, Inc. Melt processable poly (ethylene oxide) fibers
US6172177B1 (en) 1997-12-31 2001-01-09 Kimberly-Clark Worldwide, Inc. Grafted poly(ethylene oxide) compositions
US6060584A (en) * 1998-05-13 2000-05-09 Eastman Chemical Company Process for the degradation of polyolefins
US6433133B1 (en) 1999-11-16 2002-08-13 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
US6576576B1 (en) 1999-12-29 2003-06-10 Kimberly-Clark Worldwide, Inc. Multicomponent fibers
US6790519B1 (en) 2000-05-26 2004-09-14 Kimberly-Clark Worldwide, Inc. Moisture-induced poly(ethylene oxide) gel, method of making same and articles using same
US6610793B1 (en) 2000-05-26 2003-08-26 Kimberly-Clark Worldwide, Inc. Modified poly(ethylene oxide), method of making same and articles using same
US6403706B1 (en) 2000-12-28 2002-06-11 Kimberly-Clark Worldwide, Inc. Methods of making polymer/dispersed modifier compositions
US6607819B2 (en) 2000-12-28 2003-08-19 Kimberly-Clark Worldwide, Inc. Polymer/dispersed modifier compositions
US6515075B1 (en) 2001-07-12 2003-02-04 Kimberly-Clark Worldwide, Inc. Films, fibers and articles of chemically modified polyethylene oxide compositions with improved environmental stability and method of making same
DE10139738A1 (de) * 2001-08-13 2003-03-06 Armstrong Dlw Ag Verfahren zur Herstellung einer formbaren Masse und deren Verwendung zur Herstellung emissionsarmer Bodenbeläge
US20050012235A1 (en) * 2001-11-30 2005-01-20 Schregenberger Sandra D Oxygen tailoring of polyethylene resins
US6855771B2 (en) * 2002-10-31 2005-02-15 Grant Doney Process for making block polymers or copolymers from isotactic polypropylene
US7892466B2 (en) 2004-08-19 2011-02-22 Univation Technologies, Llc Oxygen tailoring of polyethylene resins
US20060038315A1 (en) * 2004-08-19 2006-02-23 Tunnell Herbert R Iii Oxygen tailoring of polyethylene resins
US8202940B2 (en) 2004-08-19 2012-06-19 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US7655727B2 (en) 2005-12-09 2010-02-02 Exxonmobil Chemical Patents Inc. Method for preparing thermoplastic vulcanizates with improved extrusion surfaces
DE602006012023D1 (de) 2006-05-26 2010-03-18 Borealis Tech Oy Eine Polyolefinzusammensetzung mit verbessertem Weissbruchwiderstand
DE102012222991A1 (de) * 2012-12-12 2014-06-12 Henkel Ag & Co. Kgaa Verfahren zur Degradierung von (Co)polymeren
US10316115B2 (en) 2013-12-19 2019-06-11 Dow Global Technologies Llc Process to visbreak propylene-based polymers with C—C initiators
US11465327B1 (en) * 2016-04-22 2022-10-11 Steerlife India Private Limited Fractional lobe processor
EP3497490A1 (en) 2016-08-12 2019-06-19 3M Innovative Properties Company Truncated beadfilm constructions and methods of making the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628214A (en) * 1945-10-27 1953-02-10 Du Pont Curing of polyethylenes
US3144436A (en) * 1961-01-04 1964-08-11 Du Pont Process for degrading stereoregular polymers
JPS5825322B2 (ja) * 1976-02-26 1983-05-26 日本石油化学株式会社 ゲルの少ない変性ポリオレフインの製造方法
US4578430A (en) * 1984-12-19 1986-03-25 Shell Oil Company Controlled degradation or cracking of alpha-olefin polymers
DE3610159A1 (de) * 1986-03-26 1987-10-01 Werner & Pfleiderer Vorrichtung und verfahren zur herstellung eines kunststoffes mit definierten eigenschaften, insbesondere eines polypropylens mit definierter molekularstruktur
FR2613722B1 (fr) * 1987-04-07 1990-11-23 Bp Chimie Sa Procede de fabrication de granules d'homopolymere ou de copolymere de propylene
JPS6465146A (en) * 1987-09-04 1989-03-10 Idemitsu Petrochemical Co Modified linear polyethylene composition of medium to low density
US5405917A (en) * 1992-07-15 1995-04-11 Phillips Petroleum Company Selective admixture of additives for modifying a polymer

Also Published As

Publication number Publication date
DE69623092T2 (de) 2002-12-19
US5587434A (en) 1996-12-24
DE69623092D1 (de) 2002-09-26
ES2177737T3 (es) 2002-12-16
EP0768156A2 (en) 1997-04-16
ATE222527T1 (de) 2002-09-15
EP0768156B1 (en) 2002-08-21
EP0768156A3 (en) 1997-12-29

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