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71.Method and spinneret device for spinning two-component filaments 失效
Title translation: 用于纺丝两组分薄膜的方法和纺丝装置公开(公告)号:US3459846A
公开(公告)日:1969-08-05
申请号:US3459846D
申请日:1966-11-15
Applicant: KANEBO LTD , SNIA VISCOSA
Inventor: MATSUI MASAO , NAKAMORI TSUYOSHI
CPC classification number: D01D5/34 , B29C47/0014 , B29C47/06 , B29C47/065 , D01D5/30 , Y10S264/26 , Y10S425/217
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72.
公开(公告)号:US3356675A
公开(公告)日:1967-12-05
申请号:US45156765
申请日:1965-04-28
Applicant: SNIA VISCOSA
Inventor: WERNER MUENCH , GIULIANA SILVESTRI , PAOLO ROSSI PIETRO
IPC: B01J19/18 , B01J19/24 , C07D201/10
CPC classification number: C07D201/10 , B01J19/18 , B01J19/2415 , B01J19/247 , B01J2219/00083 , B01J2219/00094 , B01J2219/00772
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公开(公告)号:US3345445A
公开(公告)日:1967-10-03
申请号:US35239464
申请日:1964-03-16
Applicant: SNIA VISCOSA
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74.Process for the production of crimpable composite synthetic yarns 失效
Title translation: 卷曲复合合成纱线生产工艺公开(公告)号:US3315021A
公开(公告)日:1967-04-18
申请号:US46253765
申请日:1965-06-09
Applicant: SNIA VISCOSA
Inventor: ETTORE LUZZATTO
IPC: D01D5/34
CPC classification number: D01D5/34 , Y10S264/26
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75.Polyamides stabilized with manganous silicate and process for producing same 失效
Title translation: 用硅酸锰稳定的聚酰胺及其制备方法公开(公告)号:US3300443A
公开(公告)日:1967-01-24
申请号:US28776763
申请日:1963-06-14
Applicant: SNIA VISCOSA
Inventor: LUIGI CICERI , PIERLUIGI PERAZZONI
IPC: C08K3/34
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76.Process for the oxidation in liquid phase of alkyl-substituted aromatic compounds 失效
Title translation: 烷基取代芳香族化合物在液相中氧化的方法公开(公告)号:US3280181A
公开(公告)日:1966-10-18
申请号:US33571263
申请日:1963-12-30
Applicant: SNIA VISCOSA
Inventor: PASCALINO NOTARBARTOLO ENZA , PAOLA NOTARBARTOLO , WERNER MUENCH , VINCENZO RUOTI
IPC: C07C51/265
CPC classification number: C07C51/265 , C07C63/04 , C07C63/26 , C07C63/06
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77.
公开(公告)号:US3238590A
公开(公告)日:1966-03-08
申请号:US25727463
申请日:1963-02-08
Applicant: SNIA VISCOSA
Inventor: DOMENICO NICITA , PIERO GIACOBONE
IPC: D02J1/08
CPC classification number: D02J1/08
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78.Process for preparing alkaline metals having high reactive power 失效
Title translation: 制备具有高无功功率的碱金属的方法公开(公告)号:US2948762A
公开(公告)日:1960-08-09
申请号:US64655357
申请日:1957-03-18
Applicant: SNIA VISCOSA
Inventor: WERNER MUENCH , CESANO MADERNO , LUIGI NOTARBARTOLO , GIULIANA SILVESTRI , VINCENZO RUOTI
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79.Process for the recovery of furfural and a fuel from waste bisulfite liquor 失效
Title translation: 从亚硫酸氢亚铁废液中回收糠醛和燃料的方法公开(公告)号:US2768176A
公开(公告)日:1956-10-23
申请号:US26774052
申请日:1952-01-23
Applicant: SNIA VISCOSA
Inventor: GIACINTO DIOTTI
IPC: C07D307/50 , D21C11/00
CPC classification number: D21C11/0007 , C07D307/50
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公开(公告)号:US3914313A
公开(公告)日:1975-10-21
申请号:US11895171
申请日:1971-02-25
Applicant: SNIA VISCOSA
Inventor: SIOLI GIANCARLO , GIUFFRE LUIGI , RIGHI FRANCO , MATERA GIANCARLO
IPC: C07D239/42 , B01J31/00 , C07B61/00 , C07C45/00 , C07C45/89 , C07C49/88 , C07C51/00 , C07C61/09 , C07C67/00 , C07D307/89 , C07C45/18
Abstract: A method is disclosed for the preparation of alicyclic ketenes, useful as intermediates in the preparation of lactams. The instant method consists in a heat treatment of an alicyclic acid, or its anhydride, in a matallic reactor exempt from nickel, at high temperatures but under subatmospherical pressures. A catalyst of the type XP(OR)3 wherein X is selected from the group consisting of oxygen, sulphur and selenium and R is an alkyl radical is preferred for accelerating the reactions. The temperatures are in the range from 550* to 750*C and the preferred pressure is under 100 millimeters of mercury. High yields and conversion rates are obtained and the purity of the end product is more than satisfactory. The method can be applied to the preparation of a number of alicyclic ketenes.
Abstract translation: 公开了一种制备用作制备内酰胺的中间体的脂环族烯酮的方法。 本方法包括在高温下但在低于大气压的压力下,在不含镍的金属反应器中脂环酸或其酸酐的热处理。 XP(OR)3类型的催化剂,其中X选自氧,硫和硒,R是烷基,用于加速反应。 温度范围为550℃至750℃,优选的压力为100毫米汞柱。 获得高产率和转化率,最终产品的纯度令人满意。 该方法可用于制备多种脂环烯酮。
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