JP2011178936A5 - - Google Patents
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- JP2011178936A5 JP2011178936A5 JP2010046026A JP2010046026A JP2011178936A5 JP 2011178936 A5 JP2011178936 A5 JP 2011178936A5 JP 2010046026 A JP2010046026 A JP 2010046026A JP 2010046026 A JP2010046026 A JP 2010046026A JP 2011178936 A5 JP2011178936 A5 JP 2011178936A5
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- dihydroxybiphenyl
- hours
- liquid crystalline
- crystalline polyester
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合成例９ 液晶性ポリエステル（Ｂ−２）の合成
撹拌翼、留出管を備えた５Ｌの反応容器にｐ−ヒドロキシ安息香酸７５９．７ｇ（５．５モル）、４，４’−ジヒドロキシビフェニル４１９．０ｇ（２．２５モル）、テレフタル酸５６０．７ｇ（３．３７５モル（４，４’−ジヒドロキシビフェニルの１．５倍モル当量））、酢酸ナトリウム０．３０ｇ（得られる液晶性ポリエステルの０．０２重量％）および無水酢酸１０５１．５ｇ（系の全フェノール性ヒドロキシ基に対して１．０３当量）を仕込み、窒素ガス雰囲気下で撹拌しながら１４５℃で２時間反応させた後、３９５℃まで１℃／分で昇温した。その後、３９５℃で０．５時間保持し、１．５時間で１．０ｍｍＨｇ（１３３Ｐａ）に減圧し、更に６０分間反応を続け、トルクが２１ｋｇ・ｃｍに到達したところで重縮合を完了させた。次に反応容器内を０．１ＭＰａに加圧し、直径１０ｍｍの円形吐出口を１個持つ口金を経由してポリマーをストランド状物に吐出し、カッターによりペレタイズした。
Synthesis Example 9 Synthesis of Liquid Crystalline Polyester (B-2) In a 5 L reaction vessel equipped with a stirring blade and a distillation tube, 759.7 g (5.5 mol) of p-hydroxybenzoic acid and 4,4′-dihydroxybiphenyl 419 0.0 g (2.25 mol), 560.7 g of terephthalic acid (3.375 mol (1.5 times the molar equivalent of 4,4′-dihydroxybiphenyl)), 0.30 g of sodium acetate (0 of the resulting liquid crystalline polyester) 0.02 wt%) and 1051.5 g of acetic anhydride (1.03 equivalents based on the total phenolic hydroxy groups in the system) were reacted at 145 ° C. for 2 hours with stirring under a nitrogen gas atmosphere, and then 395 ° C. The temperature was raised at 1 ° C./min. Thereafter, the temperature was maintained at 395 ° C. for 0.5 hour, the pressure was reduced to 1.0 mmHg (133 Pa) in 1.5 hours, and the reaction was further continued for 60 minutes. When the torque reached 21 kg · cm, the polycondensation was completed. Next, the inside of the reaction vessel was pressurized to 0.1 MPa, the polymer was discharged to a strand through a base having one circular discharge port having a diameter of 10 mm, and pelletized by a cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010046026A JP5504978B2 (en) | 2010-03-03 | 2010-03-03 | Liquid crystalline polyester and liquid crystalline polyester composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010046026A JP5504978B2 (en) | 2010-03-03 | 2010-03-03 | Liquid crystalline polyester and liquid crystalline polyester composition |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011178936A JP2011178936A (en) | 2011-09-15 |
| JP2011178936A5 true JP2011178936A5 (en) | 2013-01-24 |
| JP5504978B2 JP5504978B2 (en) | 2014-05-28 |
Family
ID=44690792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010046026A Expired - Fee Related JP5504978B2 (en) | 2010-03-03 | 2010-03-03 | Liquid crystalline polyester and liquid crystalline polyester composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5504978B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358657A (en) | 2013-06-07 | 2016-02-24 | 提克纳有限责任公司 | High strength thermotropic liquid crystalline polymer |
| CN105837803B (en) * | 2016-02-01 | 2017-05-31 | 金发科技股份有限公司 | A kind of liquid crystal polyester and the moulding compound being made from it and its application |
| CN113604009B (en) * | 2021-09-08 | 2022-11-15 | 宁波聚嘉新材料科技有限公司 | High-toughness liquid crystal polymer film and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60106832A (en) * | 1983-11-15 | 1985-06-12 | Teijin Ltd | Fully aromatic polyester and its production |
| JPS6395224A (en) * | 1986-10-08 | 1988-04-26 | Sumitomo Chem Co Ltd | Production of crystalline aromatic polyester |
| JP3087430B2 (en) * | 1992-04-06 | 2000-09-11 | 住友化学工業株式会社 | Solid state polymerization of powdery polymer |
| JP4770100B2 (en) * | 2001-09-28 | 2011-09-07 | 住友化学株式会社 | Liquid crystalline polyester resin composition for connectors and connector |
| JP3848880B2 (en) * | 2002-01-25 | 2006-11-22 | 新日本石油化学株式会社 | Method for producing blister-resistant liquid crystal polyester composition |
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2010
- 2010-03-03 JP JP2010046026A patent/JP5504978B2/en not_active Expired - Fee Related
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