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公开(公告)号:US3522022A
公开(公告)日:1970-07-28
申请号:US3522022D
申请日:1969-02-03
Applicant: HOECHST AG
Inventor: MAY ADOLF , LIEBSCHER HEINZ , MULLER HEINZ , KREMPL ENGELBERT
CPC classification number: C10L1/14 , C10L1/1881 , C10L1/2222 , C10L1/224 , C10L1/2335 , C23F11/10
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2.
公开(公告)号:US3459649A
公开(公告)日:1969-08-05
申请号:US3459649D
申请日:1967-11-02
Applicant: HOECHST AG
Inventor: MULLER HEINZ , KREMPL ENGELBERT
CPC classification number: B03D1/01 , B03D2201/02 , B03D2203/10
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公开(公告)号:CH622237A5
公开(公告)日:1981-03-31
申请号:CH990876
申请日:1976-08-03
Applicant: HOECHST AG
Inventor: STRAUSS JULIUS , HUEBNER HERBERT DR , MUELLER HEINZ DR , KREMPL ENGELBERT
IPC: C07B61/00 , B01J19/18 , B01J23/00 , B01J23/72 , B01J23/86 , C07C67/00 , C07C209/00 , C07C209/14 , C07C209/16 , C07C209/26 , C07C211/03 , C07C211/08 , C07C211/21 , C07C85/08 , C07C87/127
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公开(公告)号:NO142709C
公开(公告)日:1980-10-01
申请号:NO762730
申请日:1976-08-05
Applicant: HOECHST AG
Inventor: STRAUSS JULIUS , HUEBNER HERBERT , MUELLER HEINZ , KREMPL ENGELBERT
IPC: C07B61/00 , B01J19/18 , B01J23/00 , B01J23/72 , B01J23/86 , C07C67/00 , C07C209/00 , C07C209/14 , C07C209/16 , C07C209/26 , C07C211/03 , C07C211/08 , C07C211/21 , C07C87/127 , C07C85/06
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公开(公告)号:NO142709B
公开(公告)日:1980-06-23
申请号:NO762730
申请日:1976-08-05
Applicant: HOECHST AG
Inventor: STRAUSS JULIUS , HUEBNER HERBERT , MUELLER HEINZ , KREMPL ENGELBERT
IPC: C07B61/00 , B01J19/18 , B01J23/00 , B01J23/72 , B01J23/86 , C07C67/00 , C07C209/00 , C07C209/14 , C07C209/16 , C07C209/26 , C07C211/03 , C07C211/08 , C07C211/21 , C07C87/127 , C07C85/06
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公开(公告)号:CA1000742A
公开(公告)日:1976-11-30
申请号:CA185586
申请日:1973-11-13
Applicant: HOECHST AG
Inventor: MUELLER HEINZ , KREMPL ENGELBERT
IPC: C07B61/00 , B01J19/18 , B01J21/00 , B01J23/00 , B01J29/00 , C07C67/00 , C07C209/00 , C07C209/16 , C07C211/03
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公开(公告)号:DE1768743A1
公开(公告)日:1971-11-11
申请号:DE1768743
申请日:1968-06-25
Applicant: HOECHST AG
Inventor: MUELLER HEINZ DR , KREMPL ENGELBERT
IPC: A61C7/10
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公开(公告)号:DE1621576A1
公开(公告)日:1971-06-03
申请号:DEF0052974
申请日:1967-07-15
Applicant: HOECHST AG
Inventor: MUELLER HEINZ DR , KREMPL ENGELBERT , STAHL OTTMAR DR , LORKE HORST
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公开(公告)号:CA1189085A
公开(公告)日:1985-06-18
申请号:CA407612
申请日:1982-07-20
Applicant: HOECHST AG
Inventor: STUEHLER HERBERT , KREMPL ENGELBERT
Abstract: of the disclosure: A process for the purification of esters, which contain residues of dissolved and/or undissolved alcohols, is described. The purification of the esters containing alcohols is achieved by treating the esters, in the liquid state, with an effective amount of water-soluble polysaccharide derivatives in the solid state.
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公开(公告)号:DE3119553A1
公开(公告)日:1982-12-02
申请号:DE3119553
申请日:1981-05-16
Applicant: HOECHST AG
Inventor: STUEHLER HERBERT DR , KREMPL ENGELBERT , OBERHAUSER ADELGUNDE
IPC: C07D307/20 , C07D309/04 , C07D309/10 , C07D493/04 , C07D493/08 , C09K23/34 , C07D303/16 , B01F17/34 , C08K5/09 , A61K7/00 , C11D1/66
Abstract: In this process, hexitol and carboxylic acid are reacted in a molar ratio of 1 : 0.5 to 1 : 5 in the presence of alkaline esterification catalysts and in the presence of an inert gas atmosphere, first at atmospheric pressure at a temperature of 210 to 260 DEG C until an acid number of 2 to 25 has been obtained, the resulting water being removed, and the reaction is then continued in vacuo and at a temperature of 210 to 260 DEG C, the resulting water continuing to be removed, whereupon the reaction product is bleached with hydrogen peroxide at a temperature from 50 to 100 DEG C. This process gives carboxylic esters of anhydrohexitol of a colour of good quality. They represent surface-active substances, in particular valuable emulsifiers and gliding agents.
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