Method of treating polyolefin
원문보기
IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0861069
(1997-05-21)
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| 우선권정보 |
JP-0126008 (1996-05-21) |
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발명자
/ 주소 |
- Yamamoto Ryoichi,JPX
- Ohtani Satoru,JPX
- Nishikawa Hiroshi,JPX
- Kojima Teruhisa,JPX
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| 출원인 / 주소 |
- Mitsui Chemicals, Inc., JPX
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
4 인용 특허 :
6 |
초록
▼
A method of treating polyolefin comprises (i) a ligand-decomposition step of contacting polyolefin, which is obtained by the use of a transition metal compound containing ligands having cyclopentadienyl skeleton, with a ligand decomposer, such as water, oxygen, alcohol, alkylene oxide or peroxide, t
A method of treating polyolefin comprises (i) a ligand-decomposition step of contacting polyolefin, which is obtained by the use of a transition metal compound containing ligands having cyclopentadienyl skeleton, with a ligand decomposer, such as water, oxygen, alcohol, alkylene oxide or peroxide, to decompose the ligands contained in the polyolefin, and (ii) a ligand-removal step of heating the polyolefin contacted with the ligand decomposer to remove the decomposed ligands from the polyolefin. According to this method, the residual ligands having cyclopentadienyl skeleton, which are contained in the polyolefin produced by the use of a transition metal compound containing ligands having cyclopentadienyl skeleton, are decomposed and removed from the polyolefin, whereby polyolefin diminished in odor development in the molding process can be obtained.
대표청구항
▼
[ What is claimed is:] [1.] A method of treating polyolefin, comprising:(i) a step of contacting polyolefin, which is obtained by the use of a metallocene compound, with a gaseous stream containing a ligand decomposer, said polyolefin being in the form of a powder, and(ii) a step of heating the poly
[ What is claimed is:] [1.] A method of treating polyolefin, comprising:(i) a step of contacting polyolefin, which is obtained by the use of a metallocene compound, with a gaseous stream containing a ligand decomposer, said polyolefin being in the form of a powder, and(ii) a step of heating the polyolefin contacted with the ligand decomposer. [23.] A method of treating polyolefin, comprising:(i) a step of contacting polyolefin, which is obtained by the use of a metallocene compound, with a ligand decomposer, and(ii) a step of heating the polyolefin contacted with the ligand decomposer comprising:(a) a step of melting, by heating, the polyolefin contacted with the ligand decomposer to prepare pellets of the polyolefin, and(b) any one of (b-1) a step of contacting the pellets with hot water, (b-2) a step of contacting the pellets with water vapor and (b-3) a step of maintaining the pellets at a pressure of 0.001 to 0.98 MPa.
이 특허에 인용된 특허 (6)
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Tsutsui Toshiyuki (Kuga JPX) Okawa Kazunori (Kuga JPX) Toyota Akinori (Kuga JPX), Olefin polymerization catalyst and process for the polymerization of olefins.
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Doyle Michael J. (Amsterdam NLX) Terlouw Willem (Amsterdam NLX), Polymerization process.
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Emert Jacob (Brooklyn NY) Rossi Albert (Warren NJ) Rea Salvatore (Franklin Square NY) Frederick Jeffrey W. (Morris Plains NJ) Kim Mahn W. (Califon NJ), Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives.
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Asanuma Tadashi (Osaka JPX) Shiomura Tetsunosuke (Tokyo JPX) Uchikawa Nobutaka (Osaka JPX) Sasaki Tateyo (Osaka JPX) Inoue Norihide (Kanagawa JPX) Uchida Osamu (Osaka JPX) Iwatani Tutomu (Osaka JPX), Preparation process of syndiotactic polyproplene.
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Yoshiura Hirohisa (Kurashiki JA) Arai Toshiharu (Kurashiki JA) Miyake Masao (Kurashiki JA) Furuya Yoshikane (Kurashiki JA) Onogi Seiji (Kurashiki JA) Kamizono Tetsushi (Kurashiki JA), Process for preparing polyolefin.
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Beining Heinz (Hamm-Westtuennen DT), Process for removing residual volatile solvent impurities from polymer molding pellets.
이 특허를 인용한 특허 (4)
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Ohtani,Satoru; Abe,Shinji; Nishida,Hiroto, Olefinic polymer and process for producing the same.
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Ohtani,Satoru; Abe,Shinji; Nishida,Hiroto, Olefinic polymer and process for producing the same.
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Baita, Pietro; Penzo, Giuseppe; Mei, Gabriele, Process for the polyolefin finishing.
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Cook, Jonathan W.; Lane, Mark K., Systems and methods for treatment of LNG cargo tanks.
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