PT80248B - Process for the modification of copolymers of ethylene and higher alpha-olefins by thermo-mechanical treatment - Google Patents
Process for the modification of copolymers of ethylene and higher alpha-olefins by thermo-mechanical treatmentInfo
- Publication number
- PT80248B PT80248B PT8024885A PT8024885A PT80248B PT 80248 B PT80248 B PT 80248B PT 8024885 A PT8024885 A PT 8024885A PT 8024885 A PT8024885 A PT 8024885A PT 80248 B PT80248 B PT 80248B
- Authority
- PT
- Portugal
- Prior art keywords
- olefins
- thermo
- copolymers
- ethylene
- modification
- Prior art date
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
- C08F8/00—Chemical modification by after-treatment
-
- 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
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)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8405549A FR2562546B1 (fr) | 1984-04-09 | 1984-04-09 | Procede de traitement de polyethylene de basse densite lineaire destine a la fabrication par extrusion de corps creux, tubes et gaines |
Publications (2)
Publication Number | Publication Date |
---|---|
PT80248A PT80248A (en) | 1985-05-01 |
PT80248B true PT80248B (en) | 1987-02-03 |
Family
ID=9302961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT8024885A PT80248B (en) | 1984-04-09 | 1985-04-08 | Process for the modification of copolymers of ethylene and higher alpha-olefins by thermo-mechanical treatment |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0161774A1 (pt) |
JP (1) | JPS61501782A (pt) |
ES (1) | ES8700274A1 (pt) |
FR (1) | FR2562546B1 (pt) |
PT (1) | PT80248B (pt) |
WO (1) | WO1985004664A1 (pt) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2592051B1 (fr) * | 1985-12-24 | 1988-10-14 | Charbonnages Ste Chimique | Compositions de polymeres de l'ethylene, un procede pour leur preparation et leur application a l'obtention d'articles industriels |
DE3642266A1 (de) * | 1986-12-11 | 1987-04-23 | Rauer Kurt | Abbau von polyethylen mittels radikalbildner |
US5047485A (en) * | 1989-02-21 | 1991-09-10 | Himont Incorporated | Process for making a propylene polymer with free-end long chain branching and use thereof |
US5525695A (en) * | 1991-10-15 | 1996-06-11 | The Dow Chemical Company | Elastic linear interpolymers |
US5783638A (en) * | 1991-10-15 | 1998-07-21 | The Dow Chemical Company | Elastic substantially linear ethylene polymers |
DE4224990A1 (de) * | 1992-07-29 | 1994-02-03 | Guenter Hufschmid | Wiederverwertung von Polyolefinabfällen durch thermischen, oxidativen bzw. katalytischen Abbau zu Polyolefinwachsen, Polyolefinharzen oder durch Oxidation zu oxidierten Polyolefinen |
US5414040A (en) * | 1992-09-15 | 1995-05-09 | The Dow Chemical Company | Formulated ethylene/α-olefin elastomeric compounds |
US6300451B1 (en) | 1994-10-24 | 2001-10-09 | Exxon Chemical Patents Inc. | Long-chain branched polymers and their production |
DE69619603T2 (de) * | 1995-07-28 | 2002-09-26 | Tosoh Corp., Shinnanyo | Formmasse, Zusammensetzung die diese Formmasse enthält und Verfahren zu deren Herstellung |
AU712018B2 (en) | 1996-03-05 | 1999-10-28 | Dow Chemical Company, The | Rheology-modified polyolefins |
DE69807708T2 (de) | 1997-08-27 | 2003-01-02 | The Dow Chemical Co., Midland | Elastomere mit verbesserter verarbeitbarkeit |
BR9906086B1 (pt) * | 1999-12-21 | 2009-01-13 | aplicaÇço de polietileno linear de baixa densidade (pelbd) modificado em filmes termocontrÁteis e filmes termocontrÁteis. | |
RU2298563C2 (ru) | 2000-05-19 | 2007-05-10 | Циба Спешиалти Кемикэлз Холдинг Инк. | Способ уменьшения молекулярной массы полипропилена |
US7030196B2 (en) | 2000-05-19 | 2006-04-18 | Ciba Specialty Chemicals Corporation | Process for reducing the molecular weight of polypropylene |
WO2004060933A1 (ja) | 2002-12-27 | 2004-07-22 | Nof Corporation | 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 |
ITMI20030629A1 (it) * | 2003-03-31 | 2004-10-01 | Polimeri Europa Spa | Composizione elastomerica per l'isolamento di cavi elettrici. |
US7399809B1 (en) * | 2007-01-11 | 2008-07-15 | Equistar Chemicals, Lp | Modifying polyethylene made by Ziegler or single-site catalyst with free radical initiator |
US9284415B2 (en) | 2012-03-15 | 2016-03-15 | Exxonmobil Chemical Patents Inc. | Oxygen tailoring of polyethylene |
US9346897B2 (en) | 2013-05-14 | 2016-05-24 | Chevron Phillips Chemical Company Lp | Peroxide treated metallocene-based polyolefins with improved melt strength |
KR102397761B1 (ko) * | 2014-08-28 | 2022-05-16 | 다우 글로벌 테크놀로지스 엘엘씨 | 발포된 퍼옥사이드 개질된 선형 저밀도 폴리에틸렌 조성물, 및 그 발포된 조성물의 제조 방법 |
BR112019013895A2 (pt) | 2017-01-05 | 2020-02-04 | General Cable Technologies Corporation | polímeros de polietileno linear de baixa densidade apropriado para o uso em cabos |
WO2020223019A1 (en) * | 2019-05-01 | 2020-11-05 | Exxonmobil Chemical Patents Inc. | Heat-shrinkable polyethylene films |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPS5871904A (ja) * | 1981-10-23 | 1983-04-28 | Asahi Chem Ind Co Ltd | 変性エチレン−αオレフィン共重合体の製造方法 |
-
1984
- 1984-04-09 FR FR8405549A patent/FR2562546B1/fr not_active Expired
-
1985
- 1985-04-02 EP EP85302280A patent/EP0161774A1/en not_active Ceased
- 1985-04-02 JP JP50168485A patent/JPS61501782A/ja active Pending
- 1985-04-02 WO PCT/GB1985/000142 patent/WO1985004664A1/en unknown
- 1985-04-08 PT PT8024885A patent/PT80248B/pt not_active IP Right Cessation
- 1985-04-09 ES ES542062A patent/ES8700274A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES8700274A1 (es) | 1986-10-16 |
FR2562546B1 (fr) | 1987-01-23 |
JPS61501782A (ja) | 1986-08-21 |
FR2562546A1 (fr) | 1985-10-11 |
ES542062A0 (es) | 1986-10-16 |
EP0161774A1 (en) | 1985-11-21 |
WO1985004664A1 (en) | 1985-10-24 |
PT80248A (en) | 1985-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19900830 |