[특허]Supported metallocene catalysts

[미국특허] Supported metallocene catalysts 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-031/00 B01J-037/00 C08F-004/02 C08F-004/60
출원번호	US-0273819 (1999-03-22)
발명자 / 주소	Edwar S. Shamshoum Margarito Lopez
출원인 / 주소	Fina Technology, Inc.
대리인 / 주소	William D. Jackson
인용정보	피인용 횟수 : 15 인용 특허 : 15

초록 ▼

Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers which contain three or more carbon atoms or which are substituted vinyl compounds, such as styrene and vinyl chloride. One application is the stereospecific propagation of C3-C4 alpha olefins, particularly the polymerization of propylene to produce syndiotactic polypropylene over a supported metallocene catalyst comprising a stereospecific metallocene catalyst component incorporating a metallocene ligand structure having two sterically dissimilar cyclopentadienyl ring structures coordinated to the central transition metal atom. Both of the cyclopentadienyl groups are in a relationship with one another by virtue of bridge or substituent groups, which provide a stereorigid relationship relative to the coordinating transition metal atom to prevent rotation of said ring structures. The metallocene catalyst component and a co-catalyst component, an alumoxane or an alkyl aluminum, are supported on a particulate silica support comprising spheroidal silica particles having an average diameter within the range of 5-40 microns and an average effective pore size within the range of 50-350 angstroms. The particulate silica support contains at least 50 wt. % of the supported catalyst component within the pore volume of the silica support. The particles are preferably toroidal shaped, i.e. donut shaped.

대표청구항 ▼

1. A supported metallocene catalyst comprising:a) a particulate silica support comprising spheroidal silica particles having an average diameter within the range of 5-40 microns and an average effective pore size within the range of 50-350 Angstroms with at least 50% of the surface area of said support being contained within the pore volume of said particulate support wherein at least some of said spheroidal silica particles comprise a central bore extending at least partially through said particle to provide a toroidal shaped configuration; b) a stereospecific metallocene supported on said particulate support and incorporating a metallocene ligand structure having two sterically dissimilar cyclopentadienyl ring structures coordinated to a central transition metal atom; at least one of said cyclopentadienyl ring structures being a substituted cyclopentadienyl group which provides an orientation with respect to said transition metal atom which is sterically different from the orientation of the other cyclopentadienyl group with respect to said transition metal atom, both of said cyclopentadienyl groups being in a relationship with each other providing a stereorigid relationship relative to said coordinating transition metal atom to prevent rotation of said ring structures; c) said metallocene ligand structure having a kinetic diameter which is less than the average effective pore size of said silica and said metallocene being preferentially located within the interior pore volume of said silica particles to provide at least 50% of the polymerization sites provided on said transition metal atom being within the interior pore volume of said support; and d) an aluminum containing cocatalyst incorporated into said particulate silica support wherein said aluminum-containing cocatalyst is incorporated predominantly within the interior pore volume of said particulate support.

이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

Jejelowo Moses O. (Kingwood TX) Bamberger Robert L. (Crosby TX), Catalyst and method of broadening polymer molecular weight distribution and increasing polymer tensile impact strength a.
상세보기
Furtek Allan B. (Warren NJ), Catalyst composition for polymerizing olefins of narrow molecular weight distribution and polymerization therewith.
상세보기
Suga Yoshinori (Machida JPX) Maruyama Yasuo (Tokyo JPX) Isobe Eiji (Kawasaki JPX) Suzuki Toru (Yokohama JPX) Shimizu Fumihiko (Yokohama JPX), Catalyst for polymerizing an olefin and method for producing an olefin polymer.
상세보기
Ewen, John A., Catalyst for producing hemiisotactic polypropylene.
상세보기
Ewen John A. (Houston TX), Catalyst systems for producing polyolefins having a broad molecular weight distribution.
상세보기
Ewen John A. (Houston TX), Hafnium metallocene catalyst for the polymerization of olefins.
상세보기
Alt Helmut G. (Bayreuth DEX) Patsidis Konstantinos (Bayreuth OK DEX) Welch M. Bruce (Bartlesville OK) Geerts Rolf L. (Bartlesville OK) Peifer Bernd (Bayreuth OK DEX) Palackal Syriac J. (Bartlesville , Metallocenes and processes therefor and therewith.
상세보기
Imuta Junichi,JPX ; Yoshida Masayasu,JPX ; Tohi Yasushi,JPX, Olefin polymerization catalyst, process for preparing olefin polymer, and olefin polymer.
상세보기
Furtek Allan B. (Warren NJ) Gunesin Binnur Z. (New York NY), Particulate polymer-supported olefin polymerization catalyst.
상세보기
Razavi Abbas (Patourage BEX), Process and catalyst for producing syndiotactic polymers.
상세보기
Ewen John A. (Houston TX) Razavi Abbas (Seabrook TX), Process and catalyst for producing syndiotactic polyolefins.
상세보기
Matsumoto Junichi (Sodegaura JPX), Process for producing olefin based polymers and olefin polymerization catalyst.
상세보기
Chang Main (Houston TX), Supported catalyst for 1-olefin(s) (co)polymerization.
상세보기
Welborn ; Jr. Howard C. (Houston TX), Supported polymerization catalyst.
상세보기
Welborn ; Jr. Howard C. (Houston TX), Supported polymerization catalyst.
상세보기

이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Xu,Guangxue; Lu,Honglan; Chen,Chih Jian, Catalyst component for olefin polymerization.
상세보기
Blackmon,Kenneth P.; Thorman,Joseph L., Catalyst deactivation agents and methods for use of same.
상세보기
Li, Fengkui; Coffy, Tim J.; Daumerie, Michel, Compatibilized polypropylene and polylactic acid blends and methods of making and using same.
상세보기
Li, Frank, Injection molding process.
상세보기
Gauthier, William John; Lopez, Margarito; Campbell, Jr., Donald Gordon, Method for the preparation of metallocene catalysts.
상세보기
Gauthier, William John; Lopez, Margarito; Rauscher, David John; Campbell, Jr., Don Gordon; Kerr, Margaret Elaine, Method for the preparation of metallocene catalysts.
상세보기
Nairn, Lea Ann; Vargas, Marco Vinicio Araya, Multilayer polypropylene films and methods of making and using same.
상세보기
Rauscher, David John; Gauthier, William John; Henry, Shady Nader; Hortmann, Kai, Polyamide supported metallocene catalysts.
상세보기
Li, Fengkui; Coffy, Tim J.; Daumerie, Michel, Polymeric blends and methods of using same.
상세보기
Li, Fengkui; Coffy, Tim J.; Daumerie, Michel, Polymeric compositions comprising polylactic acid and methods of making and using same.
상세보기
Tian, Jun; Gauthier, William; Rauscher, David; Henry, Shady, Polyolefin produced with a high performance support for a metallocene catalyst system.
상세보기
Tian, Jun; Gauthier, William; Rauscher, David; Henry, Shady, Polyolefin production with a high performance support for a metallocene catalyst system.
상세보기
Yoshida, Toru; Tsuneishi, Hiroshi, Polypropylene resin pre-foamed particle and method for producing same, and polypropylene resin in-mold foaming molded article.
상세보기
Lopez,Margarito; Shamshoum,Edwar; Campbell, Jr.,Donald Gordon, Supported metallocene catalysts and their use in producing stereospecific polymers.
상세보기
Lopez,Margarito; Shamshoum,Edwar; Campbell, Jr.,Donald Gordon, Supported metallocene catalysts and their use in producing stereospecific polymers.
상세보기

활용도 분석정보

상세보기

다운로드

내보내기

활용도 Top5 특허

해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

저장형식

Text(ASCII format)
Excel format
PIAS분석(.xls)

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

연합인증

[미국특허] Supported metallocene catalysts 원문보기