PL337357A1 - Method of reducing molecular weight of ethylene copolymers and terpolymers - Google Patents

Method of reducing molecular weight of ethylene copolymers and terpolymers

Info

Publication number
PL337357A1
PL337357A1 PL99337357A PL33735799A PL337357A1 PL 337357 A1 PL337357 A1 PL 337357A1 PL 99337357 A PL99337357 A PL 99337357A PL 33735799 A PL33735799 A PL 33735799A PL 337357 A1 PL337357 A1 PL 337357A1
Authority
PL
Poland
Prior art keywords
terpolymers
molecular weight
ethylene copolymers
reducing molecular
reducing
Prior art date
Application number
PL99337357A
Other languages
English (en)
Inventor
Tiziano Tanaglia
Original Assignee
Enichem Spa
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 Enichem Spa filed Critical Enichem Spa
Publication of PL337357A1 publication Critical patent/PL337357A1/xx

Links

Classifications

    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
    • 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
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Polymerization Catalysts (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
PL99337357A 1998-12-22 1999-12-21 Method of reducing molecular weight of ethylene copolymers and terpolymers PL337357A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1998MI002774A IT1304499B1 (it) 1998-12-22 1998-12-22 Procedimento per ridurre il peso molecolare di copolimeri eterpolimeri dell'etilene.

Publications (1)

Publication Number Publication Date
PL337357A1 true PL337357A1 (en) 2000-07-03

Family

ID=11381305

Family Applications (1)

Application Number Title Priority Date Filing Date
PL99337357A PL337357A1 (en) 1998-12-22 1999-12-21 Method of reducing molecular weight of ethylene copolymers and terpolymers

Country Status (27)

Country Link
US (1) US6211332B1 (enExample)
EP (1) EP1013673B1 (enExample)
JP (1) JP4860020B2 (enExample)
KR (1) KR20000048239A (enExample)
CN (1) CN1117107C (enExample)
AR (1) AR022004A1 (enExample)
AT (1) ATE287419T1 (enExample)
AU (1) AU767675B2 (enExample)
BG (1) BG63722B1 (enExample)
BR (1) BR9905941A (enExample)
CA (1) CA2292313A1 (enExample)
CZ (1) CZ293026B6 (enExample)
DE (1) DE69923284T2 (enExample)
EA (1) EA002491B1 (enExample)
ES (1) ES2237036T3 (enExample)
HR (1) HRP990389A2 (enExample)
HU (1) HUP9904689A3 (enExample)
ID (1) ID24399A (enExample)
IT (1) IT1304499B1 (enExample)
MY (1) MY119952A (enExample)
NO (1) NO996213L (enExample)
NZ (1) NZ501811A (enExample)
PL (1) PL337357A1 (enExample)
SK (1) SK183099A3 (enExample)
TR (1) TR199903202A3 (enExample)
TW (1) TW585878B (enExample)
UA (1) UA66795C2 (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004217913A (ja) * 2002-12-27 2004-08-05 Nof Corp 水酸基変性エチレン−α−オレフィン系共重合体及びその組成物並びに水酸基変性エチレン−α−オレフィン系共重合体の製造方法
US7652105B2 (en) * 2002-12-27 2010-01-26 Nof Corporation Method for producing hydroxyl-modified ethylene-α-olefin copolymer
ITMI20030629A1 (it) * 2003-03-31 2004-10-01 Polimeri Europa Spa Composizione elastomerica per l'isolamento di cavi elettrici.
ITMI20032550A1 (it) * 2003-12-22 2005-06-23 Polimeri Europa Spa Mescole elastomeriche a base di nerofumo
ITMI20040751A1 (it) 2004-04-16 2004-07-16 Polimeri Europa Spa Procedimento per modificare le proprieta' reologiche di polimeri ep d m e miscele di ep d m con poli-alfaolefine
JP2006022237A (ja) * 2004-07-09 2006-01-26 Nof Corp ゴム組成物および架橋物
ITMI20041672A1 (it) 2004-08-27 2004-11-27 Polimeri Europa Spa Copolimeri etilene-propilene a migliorata stabilita' di forma adatti alla modifica degli oli lubrificanti e procedimento per la loro preparazione
ITMI20042289A1 (it) 2004-11-26 2005-02-26 Polimeri Europa Spa Processo migliorato per ottenere masters elastomerici contenenti cariche inorganiche
ITMI20042399A1 (it) * 2004-12-16 2005-03-16 Polimeri Europa Spa Additivi per oli lubrificanti aventi migliorata stabilita' di forma e migliorate prestazioni a bassa temperatura e procedimento per la loro preparazione
ITMI20060286A1 (it) 2006-02-16 2007-08-17 Polimeri Europa Spa Copolimeri etilene-propilene adatti alla modifica degli oli lubrificanti e procedimento per la loro preparazione
CA2745819C (en) * 2008-12-16 2014-10-07 H R D Corporation High shear oxidation of wax
DE102010052286A1 (de) * 2010-03-25 2011-09-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung von kürzerkettigen Kunststoffen und wachsartigen Produkten aus höhermolekularen Polymeren
US9115237B2 (en) 2012-07-18 2015-08-25 Chevron Oronite Company Llc Viscosity improver grafted with unsaturated acylating agent and an aryloxyalylkene monoamine
EP3405554B1 (en) 2016-01-22 2019-12-25 Chevron Oronite Company LLC Lubricating oil composition containing a mixture of olefin copolymer dispersant-type viscosity improver and amine compound
CN110078848B (zh) * 2019-04-08 2022-04-29 江苏龙蟠科技股份有限公司 一种液体乙丙橡胶的制备方法
IT202200025956A1 (it) 2022-12-19 2024-06-19 Versalis Spa Additivi miglioratori dell’indice di viscosita’ di oli lubrificanti e procedimento per la loro preparazione.
IT202200025962A1 (it) 2022-12-19 2024-06-19 Versalis Spa Procedimento in continuo per la riduzione del peso molecolare di copolimeri e terpolimeri dell’etilene.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB988846A (en) * 1964-02-05 1965-04-14 Sun Oil Co Processing of ethylene-propylene copolymer
DE1902178A1 (de) * 1969-01-17 1970-07-30 Western Petrochemical Corp Polyaethylene sowie Verfahren zu deren Herstellung
FR2508047B1 (fr) * 1981-06-22 1985-10-11 Bp Chimie Sa Procede de traitement de polyethylene de basse densite lineaire par des peroxydes organiques, generateurs de radicaux libres
DE3274455D1 (en) * 1981-08-22 1987-01-15 Showa Denko Kk Propylene-ethylene random copolymer, production process thereof, and film derived therefrom
US4743391A (en) * 1983-03-28 1988-05-10 Chevron Research Company Method for oxidatively degrading an olefinic polymer
US4749505A (en) * 1985-07-08 1988-06-07 Exxon Chemical Patents Inc. Olefin polymer viscosity index improver additive useful in oil compositions
JPS63101438A (ja) * 1986-10-17 1988-05-06 Kayaku Nuurii Kk 付加重合型プラスチツクの製造方法
DE3642266A1 (de) * 1986-12-11 1987-04-23 Rauer Kurt Abbau von polyethylen mittels radikalbildner
FR2613722B1 (fr) * 1987-04-07 1990-11-23 Bp Chimie Sa Procede de fabrication de granules d'homopolymere ou de copolymere de propylene
CN1092430A (zh) * 1989-10-25 1994-09-21 陶氏化学公司 纸张涂料组合物用的胶乳共聚物
IT1252069B (it) * 1991-11-25 1995-05-29 Enichem Elastomers Processo per la preparazione di copolimeri elastomerici dell'etilene
IT1275452B (it) 1995-06-30 1997-08-07 Enichem Elastomers Procedimento per la preparazione di copolimeri etilene-propilene
TW322494B (enExample) * 1995-09-14 1997-12-11 Enichem Elastomeri Srl
IT1283587B1 (it) 1996-04-11 1998-04-22 Enichem Elastomers Procedimento per la preparazione di miscele polimeriche a base di copolimeri elastomerici ep(d)m

Also Published As

Publication number Publication date
ID24399A (id) 2000-07-13
TR199903202A2 (xx) 2000-07-21
CZ293026B6 (cs) 2004-01-14
US6211332B1 (en) 2001-04-03
KR20000048239A (ko) 2000-07-25
BG104015A (en) 2001-08-31
HUP9904689A3 (en) 2001-01-29
TR199903202A3 (tr) 2000-07-21
CN1117107C (zh) 2003-08-06
DE69923284D1 (de) 2005-02-24
SK183099A3 (en) 2000-11-07
UA66795C2 (uk) 2004-06-15
EP1013673B1 (en) 2005-01-19
AU6529899A (en) 2000-06-29
AU767675B2 (en) 2003-11-20
ITMI982774A1 (it) 2000-06-22
ATE287419T1 (de) 2005-02-15
ES2237036T3 (es) 2005-07-16
EP1013673A1 (en) 2000-06-28
JP2000191725A (ja) 2000-07-11
IT1304499B1 (it) 2001-03-19
JP4860020B2 (ja) 2012-01-25
EA200000147A3 (ru) 2000-10-30
CA2292313A1 (en) 2000-06-22
CN1260354A (zh) 2000-07-19
HRP990389A2 (en) 2000-10-31
TW585878B (en) 2004-05-01
AR022004A1 (es) 2002-09-04
NO996213L (no) 2000-06-23
HUP9904689A2 (hu) 2000-10-28
BR9905941A (pt) 2000-08-15
CZ462099A3 (cs) 2000-07-12
DE69923284T2 (de) 2006-01-12
BG63722B1 (bg) 2002-10-31
EA002491B1 (ru) 2002-06-27
NO996213D0 (no) 1999-12-15
MY119952A (en) 2005-08-30
HU9904689D0 (en) 2000-02-28
EA200000147A2 (ru) 2000-06-26
NZ501811A (en) 2001-04-27

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Legal Events

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REFS Decisions on refusal to grant patents (taken after the publication of the particulars of the applications)