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NotToBe (老土鳖*做人要厚道) 于 (Sun Jun 4 13:25:43 2006) 提到:
PCT Int. Appl., 2004026223, 01 Apr 2004
不知道哪国的，通过什么途径查？
bow
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c2h2c2h2 (飞飞飞扬) 于 (Sun Jun 4 16:33:38 2006) 提到:
国际专利巴
【 在 NotToBe (老土鳖*做人要厚道) 的大作中提到: 】
: PCT Int. Appl., 2004026223, 01 Apr 2004
: 不知道哪国的，通过什么途径查？
: bow
: ...................
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NotToBe (老土鳖*做人要厚道) 于 (Sun Jun 4 16:58:13 2006) 提到:
怎么查，用那个数据库？ 在欧洲和美国专利局转了一下，不知道该用哪个选项那个查
【 在 c2h2c2h2 (飞飞飞扬) 的大作中提到: 】
: 国际专利巴
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afeicas (阿飞啊) 于 (Sun Jun 4 20:48:33 2006) 提到:
提供信息太少了吧？
【 在 NotToBe (老土鳖*做人要厚道) 的大作中提到: 】
: PCT Int. Appl., 2004026223, 01 Apr 2004
: 不知道哪国的，通过什么途径查？
: bow
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NotToBe (老土鳖*做人要厚道) 于 (Sun Jun 4 21:16:00 2006) 提到:
我也只知这么一些
【 在 afeicas (阿飞啊) 的大作中提到: 】
: 提供信息太少了吧？
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thigh (麦高) 于 (Mon Jun 5 13:53:38 2006) 提到:
CONTINUOUS PROCESS FOR THE PRODUCTION OF OPTICALLY PURE (S)-&bgr; HYDROXY-ϝ-BUTYROLACTONE
abstract:
Disclosed is a continuous process for the production of optically pure (S)-&bgr;-hydroxy-ϝ-butyrolactone having constantly maintained optical activity, consisting of hydrogenating 2-50 wt% of a substituted carboxylic acid derivative in a solvent using a fixed bed reactor filled with a precious metal catalyst-impregnated inorganic oxide carrier at 50-500 °C under pressure of 15-5,500 psig at weight-space-velocity of 0.1-10 h-1, in which a molar ratio of hydrogen to carboxylic acid derivative ranges from 2 to 10. The desired material can be produced in higher optical purity and at higher yield by the current process which is relatively simpler and environmentally safer than conventional processes. Additionally, increased production efficiency leads to production of the desired material on a large scale.
Publication Number: WO/2004/026223
是个韩国专利
【 在 NotToBe (老土鳖*做人要厚道) 的大作中提到: 】
: 标 题: 这篇专利该怎么查？PCT Int. Appl., 2004026223, 01 Apr 2004
: 发信站: 水木社区 (Sun Jun 4 13:25:43 2006), 转信
:
: PCT Int. Appl., 2004026223, 01 Apr 2004
:
: 不知道哪国的，通过什么途径查？
:
: bow
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: 太公钓鱼，缘者上钩
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: ※ 来源:·水木社区 newsmth.net·[FROM: 61.135.159.*]
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NotToBe (老土鳖*做人要厚道) 于 (Mon Jun 5 20:59:10 2006) 提到:
谢谢，原来我没有加wo，死活查不到。现在知道了
【 在 thigh (麦高) 的大作中提到: 】
: CONTINUOUS PROCESS FOR THE PRODUCTION OF OPTICALLY PURE (S)-&bgr; HYDROXY-ϝ-BUTYROLACTONE
: abstract:
: Disclosed is a continuous process for the production of optically pure (S)-&bgr;-hydroxy-ϝ-butyrolactone having constantly maintained optical activity, consisting of hydrogenating 2-50 wt% of a substituted carboxylic acid derivative in a solve
: ...................
FROM 61.135.159.*