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公开(公告)号：BRPI0906101A2
公开(公告)日：2015-07-21
申请号：BRPI0906101
申请日：2009-03-11
Applicant: TORAY INDUSTRIES
Inventor： ITO MASATERU , SAWAI HIDEKI , NAKAGAWA IZUMI , YAMADA KATSUSHIGE , SAWAI KENJI , KATO KOYA , MINEGISHI SHIN-ICHI , MIMITSUKA TAKASHI
IPC: C07C209/84 , C07C211/09
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公开(公告)号：SG172400A1
公开(公告)日：2011-08-29
申请号：SG2011046992
申请日：2009-12-25
Applicant: TORAY INDUSTRIES
Inventor： SAWAI KENJI , SAWAI HIDEKI , MIMITSUKA TAKASHI , ITO MASATERU , YAMADA KATSUSHIGE , KAWAMURA KENJI , MINEGISHI SHIN-ICHI , NAKAGAWA IZUMI , NAGANO TATSUYA
Abstract: Lactic acid obtained by a method for producing lactic acid, the method comprising: (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability of lactic acid fermentation is filtered 5 through a porous membrane having an average pore size of not less than 0.01 ttm and less than 1 pm with a transmembrane pressure difference within the range of 0.1 to 20 kPa, and the permeate is collected, while retaining the non-permeated liquid in orreturning the non-permeated liquid to the culture, and adding a fermentation feedstock to the culture: (B) a step of filtering the permeate obtained in Step (A) 10 through a nanofdtration membrane; and (C) a step of distilling the permeate obtained in Step (B) under a pressure of not less than 1 Pa and not more than atmospheric pressure, at 25°C to 200°C to recover lactic acid; comprises only small amounts of impurities, and a polylactic acid obtained using the lactic acid as a raw material has excellent thermal stability, mechanical strength and hue.
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公开(公告)号：ES2765889T3
公开(公告)日：2020-06-11
申请号：ES16196147
申请日：2009-12-25
Applicant: TORAY INDUSTRIES
Inventor： SAWAI KENJI , SAWAI HIDEKI , MIMITSUKA TAKASHI , ITO MASATERU , YAMADA KATSUSHIGE , KAWAMURA KENJI , MINEGISHI SHIN-ICHI , NAKAGAWA IZUMI , NAGANO TATSUYA
Abstract: Solución acuosa de ácido láctico al 90 % que contiene metanol a una concentración no superior a 50 ppm, ácido pirúvico a una concentración no superior a 500 ppm, furfural a una concentración no superior a 15 ppm, 5-hidroximetilfurfural a una concentración no superior a 15 ppm, lactato de metilo a una concentración no superior a 600 ppm, ácido acético a una concentración no superior a 500 ppm y ácido 2-hidroxibutírico a una concentración no superior a 500 ppm, en la que la pureza óptica de dicho ácido láctico no es inferior al 99,9 %.
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公开(公告)号：SG2013095930A
公开(公告)日：2015-07-30
申请号：SG2013095930
申请日：2009-12-25
Applicant: TORAY INDUSTRIES
Inventor： SAWAI KENJI , SAWAI HIDEKI , MIMITSUKA TAKASHI , ITO MASATERU , YAMADA KATSUSHIGE , KAWAMURA KENJI , MINEGISHI SHIN-ICHI , NAKAGAWA IZUMI , NAGANO TATSUYA
Abstract: Lactic acid obtained by a method for producing lactic acid, the method comprising: (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability of lactic acid fermentation is filtered through a porous membrane having an average pore size of not less than 0.01 µm and less than 1 µm with a transmembrane pressure difference within the range of 0.1 to 20 kPa, and the permeate is collected, while retaining the non-permeated liquid in or returning the non-permeated liquid to the culture, and adding a fermentation feedstock to the culture; (B) a step of filtering the permeate obtained in Step (A) through a nanofiltration membrane; and (C) a step of distilling the permeate obtained in Step (B) under a pressure of not less than 1 Pa and not more than atmospheric pressure, at 25°C to 200°C to recover lactic acid; comprises only small amounts of impurities, and a polylactic acid obtained using the lactic acid as a raw material has excellent thermal stability, mechanical strength and hue.
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公开(公告)号：CA2718258A1
公开(公告)日：2009-09-17
申请号：CA2718258
申请日：2009-03-11
Applicant: TORAY INDUSTRIES
Inventor： ITO MASATERU , NAKAGAWA IZUMI , KATO KOYA , MIMITSUKA TAKASHI , SAWAI KENJI , MINEGISHI SHIN-ICHI , SAWAI HIDEKI , YAMADA KATSUSHIGE
IPC: C07C209/84 , C07C211/09
Abstract: Disclosed is a process for producing a diamine, comprising the step of purifying a diamine from an aqueous solution containing a diamine salt. Specifically, the process comprises the step of adding an alkaline substance to the aqueous solution and then filtering the aqueous solution through a nanofiltration film to remove the salt and thus to obtain an aqueous diamine solution, whereby a diamine suitable as a starting material for a polyamide can be obtained by a simpler operation than a conventional extraction operation with an organic solvent.
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Patent Agency Ranking
公开(公告)号：CA2718258C
公开(公告)日：2016-12-13
申请号：CA2718258
申请日：2009-03-11
Applicant: TORAY INDUSTRIES
Inventor： ITO MASATERU , NAKAGAWA IZUMI , KATO KOYA , MIMITSUKA TAKASHI , SAWAI KENJI , MINEGISHI SHIN-ICHI , SAWAI HIDEKI , YAMADA KATSUSHIGE
IPC: C07C209/84 , C07C211/09
Abstract: By a method for producing a diamine comprising the step of purifying a diamine from an aqueous solution containing a diamine salt, the method comprising a step of adding an alkaline substance to the aqueous solution and then filtering the resulting solution by allowing the solution to pass through a nanofiltration membrane to remove the salt, thereby obtaining an aqueous diamine solution, a diamine suitable as a raw material for a polyamide can be obtained by a simpler operation than by a conventional extraction operation with an organic solvent.
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公开(公告)号：BRPI0918317A2
公开(公告)日：2015-08-18
申请号：BRPI0918317
申请日：2009-12-25
Applicant: TORAY INDUSTRIES
Inventor： SAWAI KENJI , SAWAI HIDEKI , NAKAGAWA IZUMI , YAMADA KATSUSHIGE , KAWAMURA KENJI , ITO MASATERU , MINEGISHI SHIN-ICHI , MIMITSUKA TAKASHI , NAGANO TATSUYA
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公开(公告)号：CA2748354A1
公开(公告)日：2010-07-01
申请号：CA2748354
申请日：2009-12-25
Applicant: TORAY INDUSTRIES
Inventor： SAWAI KENJI , SAWAI HIDEKI , MIMITSUKA TAKASHI , ITO MASATERU , YAMADA KATSUSHIGE , KAWAMURA KENJI , MINEGISHI SHIN-ICHI , NAKAGAWA IZUMI , NAGANO TATSUYA
Abstract: Disclosed is a method for producing lactic acid, which comprises (A) a continuous fermentation step wherein a fermentation broth of microorganisms which are capable of lactic acid fermentation is filtrated using a porous membrane having an average pore diameter of 0.01 µm or more but less than 1 µm with a transmembrane pressure difference within a range of 0.1-20 kPa; the filtrate is recovered, while holding or flowing back the unfiltrate to the broth; and a fermentation raw material is added to the broth; (B) a step wherein the filtrate obtained in step (A) is filtrated through a nano-filtration membrane; and (C) a step wherein lactic acid is recovered by distilling the filtrate obtained in step (B) at a pressure not less than 1 Pa but not more than the atmospheric pressure at a temperature not less than 25°C but not more than 200°C. Lactic acid obtained by the method has reduced impurities, and thus a polylactic acid obtained using the lactic acid as a starting material has excellent thermal stability, mechanical strength and hue.
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9.发明公开
公开(公告)号：EP2374895A4
公开(公告)日：2013-03-06
申请号：EP09835018
申请日：2009-12-25
Applicant: TORAY INDUSTRIES
Inventor： SAWAI KENJI , SAWAI HIDEKI , MIMITSUKA TAKASHI , ITO MASATERU , YAMADA KATSUSHIGE , KAWAMURA KENJI , MINEGISHI SHIN-ICHI , NAKAGAWA IZUMI , NAGANO TATSUYA
CPC classification number: C07C59/08 , B01D61/027 , B01D71/56 , B01D2311/04 , B01D2311/06 , B01D2311/18 , B01D2311/2669 , B01D2311/2688 , C07B2200/07 , C07C51/42 , C08G63/06 , C12P7/56
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公开(公告)号：EP2263996A4
公开(公告)日：2012-11-14
申请号：EP09720391
申请日：2009-03-11
Applicant: TORAY INDUSTRIES
Inventor： ITO MASATERU , NAKAGAWA IZUMI , KATO KOYA , MIMITSUKA TAKASHI , SAWAI KENJI , MINEGISHI SHIN-ICHI , SAWAI HIDEKI , YAMADA KATSUSHIGE
IPC: C07C209/84 , C07C211/09 , C08G69/26 , C08G69/28
CPC classification number: C07C209/84 , B01D61/025 , B01D61/027 , B01D61/58 , B01D71/60 , B01D2317/022 , C08G69/26 , C08G69/28 , C07C211/09 , C07C211/12
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