发明授权
US07078440B2 Dimethyl terephthalate composition and process for producing the same
有权
对苯二甲酸二甲酯组合物及其制备方法
- 专利标题: Dimethyl terephthalate composition and process for producing the same
- 专利标题(中): 对苯二甲酸二甲酯组合物及其制备方法
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申请号: US10432822申请日: 2001-11-22
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公开(公告)号: US07078440B2公开(公告)日: 2006-07-18
- 发明人: Kenichi Ishihara , Kazumasa Mizuno , Minoru Nakashima , Kazuhiro Sato , Masanori Miyamoto , Taizo Mori
- 申请人: Kenichi Ishihara , Kazumasa Mizuno , Minoru Nakashima , Kazuhiro Sato , Masanori Miyamoto , Taizo Mori
- 申请人地址: JP Osaka
- 专利权人: Teijin Limited
- 当前专利权人: Teijin Limited
- 当前专利权人地址: JP Osaka
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2000-359137 20001127; JP2000-362783 20001129; JP2000-362784 20001129; JP2000-362785 20001129; JP2000-364633 20001130; JP2000-366861 20001201; JP2001-307289 20011003
- 国际申请: PCT/JP01/10241 WO 20011122
- 国际公布: WO02/42253 WO 20020530
- 主分类号: C08J11/22
- IPC分类号: C08J11/22 ; C08J11/24
摘要:
A dimethyl terephthalate composition includes 0.001 to 200 ppm of methyl 4-(1,3-dioxolan-2-yl)benzoate and 0 to 1 ppm of dimethyl hydroxyterephthalate contained in dimethyl terephthalate, and exhibits improved properties as a material for producing polyester.