KR910018429A - 신디오탁틱 폴리프로필렌의 분자량의 증대방법 - Google Patents
신디오탁틱 폴리프로필렌의 분자량의 증대방법 Download PDFInfo
- Publication number
- KR910018429A KR910018429A KR1019910005943A KR910005943A KR910018429A KR 910018429 A KR910018429 A KR 910018429A KR 1019910005943 A KR1019910005943 A KR 1019910005943A KR 910005943 A KR910005943 A KR 910005943A KR 910018429 A KR910018429 A KR 910018429A
- Authority
- KR
- South Korea
- Prior art keywords
- molecular weight
- polypropylene
- syndiotactic polypropylene
- increasing molecular
- syndiotactic
- Prior art date
Links
- 239000004743 Polypropylene Substances 0.000 title claims description 7
- -1 polypropylene Polymers 0.000 title claims description 7
- 229920001155 polypropylene Polymers 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims 5
- 238000002441 X-ray diffraction Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
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
- C08J3/28—Treatment by wave energy or particle radiation
-
- 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
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
-
- 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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/943—Polymerization with metallocene catalysts
Landscapes
- 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)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예 2에 있어서 사용된 신디오탁틱 폴리프로필렌 성형물의 X선 회절 스펙트럼을 나타내며, 제2도는 실시예 3에 있어서 사용된 신디오탁틱 폴리프로필렌 성형물의 X선 회절스펙트럼을 나타낸다.
Claims (4)
- 실질적으로 신디오탁틱 구조를 가진 폴리프로필렌에, 산소의 부재하에서 방사선을 조사하는 것을 특징으로 하는 신디오탁틱 폴리프로필렌의 분자량 증대방법.
- 제1항에 있어서, 방사선을 조사한 후 가열처리함을 특징으로 하는 방법.
- 제1항이나 제2항에 있어서, X선 회절의 측정에 의해 7.1A의 공간에 회질선이 실질적으로 관측되지 않는 실질적으로 신디오탁틱 구조를 가진 폴리프로필렌을 사용함을 특징으로 하는 방법.
- 제1항에 있어서, 실질적으로 신디오탁틱구조를 가진 폴리프로필렌은 용융상태로 방사선에 조사됨을 특징으로 하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP???2-096546 | 1990-04-13 | ||
JP9654690 | 1990-04-13 | ||
JP???2-138252 | 1990-05-30 | ||
JP13825290 | 1990-05-30 | ||
JP32551490 | 1990-11-29 | ||
JP2-325514 | 1990-11-29 | ||
JP???2-325514 | 1990-11-29 | ||
JP2-96546 | 1990-11-29 | ||
JP2-138252 | 1990-11-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910018429A true KR910018429A (ko) | 1991-11-30 |
KR930011664B1 KR930011664B1 (ko) | 1993-12-16 |
Family
ID=27308142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910005943A KR930011664B1 (ko) | 1990-04-13 | 1991-04-13 | 신디오탁틱 폴리프로필렌의 분자량의 증대방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5200439A (ko) |
EP (1) | EP0451804B1 (ko) |
KR (1) | KR930011664B1 (ko) |
CN (1) | CN1055703C (ko) |
CA (1) | CA2040226C (ko) |
DE (1) | DE69129999T2 (ko) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5414049A (en) * | 1993-06-01 | 1995-05-09 | Howmedica Inc. | Non-oxidizing polymeric medical implant |
JP3171422B2 (ja) * | 1994-04-20 | 2001-05-28 | 日本原子力研究所 | 改質ポリプロピレンを製造する方法および成形品 |
AU693260B2 (en) | 1994-09-21 | 1998-06-25 | Bmg Incorporated | Ultrahigh-molecular-weight polyethylene molding for artificial joint and process for producing the molding |
CA2166450C (en) * | 1995-01-20 | 2008-03-25 | Ronald Salovey | Chemically crosslinked ultrahigh molecular weight polyethylene for artificial human joints |
US8563623B2 (en) * | 1996-02-13 | 2013-10-22 | The General Hospital Corporation | Radiation melt treated ultra high molecular weight polyethylene prosthetic devices |
US8865788B2 (en) * | 1996-02-13 | 2014-10-21 | The General Hospital Corporation | Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices |
BR9707803A (pt) * | 1996-03-05 | 1999-07-27 | Dow Chemical Co | Processo para aumentar a processabilidade de um polímero de etileno termoplástico processo para a preparação de um polímetro de etileno polímetro de etileno intermediário para produzir artigos moldados e processo para usar um intermediário para produzir um polímetro modificado por reologia |
US5820981A (en) * | 1996-04-02 | 1998-10-13 | Montell North America Inc. | Radiation visbroken polypropylene and fibers made therefrom |
US6228900B1 (en) * | 1996-07-09 | 2001-05-08 | The Orthopaedic Hospital And University Of Southern California | Crosslinking of polyethylene for low wear using radiation and thermal treatments |
EP2319546A1 (en) * | 1996-07-09 | 2011-05-11 | Orthopaedic Hospital | Crosslinking of polytheylene for low wear using radiation and thermal treatments |
JP2001514273A (ja) | 1997-08-27 | 2001-09-11 | ザ ダウ ケミカル カンパニー | 改良された加工性を有するエラストマー |
DE10026579A1 (de) * | 2000-05-30 | 2001-12-06 | Basell Polyolefine Gmbh | Verfahren zur Herstellung von für das Faserspinnen geeigneten Propylenpolymerisaten |
EP1170322A1 (en) * | 2000-07-04 | 2002-01-09 | ATOFINA Research | Heat sealing polyolefins |
EP1170305A1 (en) * | 2000-07-05 | 2002-01-09 | ATOFINA Research | Production of polyolefins having improved properties |
EP1170307A1 (en) * | 2000-07-05 | 2002-01-09 | ATOFINA Research | Moulding of polyolefins having improved properties |
US6818172B2 (en) * | 2000-09-29 | 2004-11-16 | Depuy Products, Inc. | Oriented, cross-linked UHMWPE molding for orthopaedic applications |
US7186364B2 (en) | 2002-01-28 | 2007-03-06 | Depuy Products, Inc. | Composite prosthetic bearing constructed of polyethylene and an ethylene-acrylate copolymer and method for making the same |
US7819925B2 (en) * | 2002-01-28 | 2010-10-26 | Depuy Products, Inc. | Composite prosthetic bearing having a crosslinked articulating surface and method for making the same |
CA2429930C (en) | 2002-06-06 | 2008-10-14 | Howmedica Osteonics Corp. | Sequentially cross-linked polyethylene |
US20040002770A1 (en) * | 2002-06-28 | 2004-01-01 | King Richard S. | Polymer-bioceramic composite for orthopaedic applications and method of manufacture thereof |
US7938861B2 (en) * | 2003-04-15 | 2011-05-10 | Depuy Products, Inc. | Implantable orthopaedic device and method for making the same |
US20040262809A1 (en) * | 2003-06-30 | 2004-12-30 | Smith Todd S. | Crosslinked polymeric composite for orthopaedic implants |
US7384430B2 (en) * | 2004-06-30 | 2008-06-10 | Depuy Products, Inc. | Low crystalline polymeric material for orthopaedic implants and an associated method |
US8262976B2 (en) | 2004-10-07 | 2012-09-11 | Biomet Manufacturing Corp. | Solid state deformation processing of crosslinked high molecular weight polymeric materials |
US7462318B2 (en) * | 2004-10-07 | 2008-12-09 | Biomet Manufacturing Corp. | Crosslinked polymeric material with enhanced strength and process for manufacturing |
US7547405B2 (en) | 2004-10-07 | 2009-06-16 | Biomet Manufacturing Corp. | Solid state deformation processing of crosslinked high molecular weight polymeric materials |
US7344672B2 (en) | 2004-10-07 | 2008-03-18 | Biomet Manufacturing Corp. | Solid state deformation processing of crosslinked high molecular weight polymeric materials |
US7896921B2 (en) * | 2004-12-30 | 2011-03-01 | Depuy Products, Inc. | Orthopaedic bearing and method for making the same |
US7883653B2 (en) | 2004-12-30 | 2011-02-08 | Depuy Products, Inc. | Method of making an implantable orthopaedic bearing |
US7879275B2 (en) * | 2004-12-30 | 2011-02-01 | Depuy Products, Inc. | Orthopaedic bearing and method for making the same |
US7538379B1 (en) * | 2005-06-15 | 2009-05-26 | Actel Corporation | Non-volatile two-transistor programmable logic cell and array layout |
US8188191B2 (en) * | 2006-08-31 | 2012-05-29 | Mitsui Chemicals, Inc. | Polyolefin polymer containing vinyl groups at both ends and composition thereof |
US8641959B2 (en) | 2007-07-27 | 2014-02-04 | Biomet Manufacturing, Llc | Antioxidant doping of crosslinked polymers to form non-eluting bearing components |
US7935740B2 (en) | 2008-12-30 | 2011-05-03 | Basell Poliolefine Italia S.R.L. | Process for producing high melt strength polypropylene |
BR112013008999A2 (pt) | 2010-10-14 | 2016-07-05 | Reliance Ind Ltd | um processo para a preparação do polipropileno com alta resistência do fundido. |
US9586370B2 (en) | 2013-08-15 | 2017-03-07 | Biomet Manufacturing, Llc | Method for making ultra high molecular weight polyethylene |
EP4337705A1 (en) | 2021-05-12 | 2024-03-20 | Borealis AG | High melt strength polypropylene |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1145326A (fr) * | 1955-02-16 | 1957-10-24 | Exxon Research Engineering Co | Irradiation de polymères |
US2948666A (en) * | 1956-11-21 | 1960-08-09 | Gen Electric | Irradiation process |
NZ126521A (ko) * | 1959-06-06 | |||
US3305538A (en) * | 1961-11-22 | 1967-02-21 | Montedison Spa | Polymerization process |
US4335225A (en) * | 1978-06-20 | 1982-06-15 | E. I. Du Pont De Nemours And Company | Elastomeric polypropylene |
US4586995A (en) * | 1982-09-17 | 1986-05-06 | Phillips Petroleum Company | Polymer and irradiation treatment method |
JPS6110411A (ja) * | 1984-06-19 | 1986-01-17 | Daicel Chem Ind Ltd | 樹脂組成物 |
NO167039C (no) * | 1985-01-31 | 1991-09-25 | Himont Inc | Fremgangsmaate for fremstilling av polypropylen med langkjedede forgreninger og anvendelse av dette |
IN166935B (ko) * | 1985-01-31 | 1990-08-11 | Himont Inc | |
US4892851A (en) * | 1988-07-15 | 1990-01-09 | Fina Technology, Inc. | Process and catalyst for producing syndiotactic polyolefins |
US5047446A (en) * | 1988-07-22 | 1991-09-10 | Himont Incorporated | Thermal treatment of irradiated propylene polymer material |
JP2764052B2 (ja) * | 1989-05-02 | 1998-06-11 | 三井化学株式会社 | シンジオタクチックポリプロピレンの製造方法 |
JP2775705B2 (ja) * | 1989-05-30 | 1998-07-16 | 三井化学株式会社 | シンジオタクチックポリプロピレンの製造方法 |
-
1991
- 1991-04-02 US US07/679,533 patent/US5200439A/en not_active Expired - Fee Related
- 1991-04-10 EP EP91105655A patent/EP0451804B1/en not_active Expired - Lifetime
- 1991-04-10 DE DE69129999T patent/DE69129999T2/de not_active Expired - Fee Related
- 1991-04-11 CA CA002040226A patent/CA2040226C/en not_active Expired - Fee Related
- 1991-04-13 KR KR1019910005943A patent/KR930011664B1/ko not_active IP Right Cessation
- 1991-04-13 CN CN91102949A patent/CN1055703C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5200439A (en) | 1993-04-06 |
DE69129999T2 (de) | 1999-02-04 |
CN1055703C (zh) | 2000-08-23 |
EP0451804A3 (en) | 1992-09-23 |
CN1056501A (zh) | 1991-11-27 |
EP0451804A2 (en) | 1991-10-16 |
CA2040226C (en) | 1995-05-02 |
DE69129999D1 (de) | 1998-09-24 |
KR930011664B1 (ko) | 1993-12-16 |
EP0451804B1 (en) | 1998-08-19 |
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