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公开(公告)号：DK145942C
公开(公告)日：1983-09-26
申请号：DK104375
申请日：1975-03-14
Applicant: DEGUSSA
Inventor： BERTRAM HEIDRUN , FAHNENSTICH RUDOLF , JUNKERMANN HELMUT , POHL GERHARD , TANNER HERBERT
IPC: A23B9/26 , A23J3/22 , A23K3/00 , A23L3/3508 , A23K3/03
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公开(公告)号：CA1133019A
公开(公告)日：1982-10-05
申请号：CA355454
申请日：1980-07-04
Applicant: DEGUSSA
Inventor： WERLE PETER , POHL GERHARD
Abstract: While heretofore crude pentaerythritol was freed from impurities due to bis-pentaeythritol monoformal by treating the crude product in aqeuous solution with ion exchange resins or cracking catalysts at elevated temperature, this impurity is now removed by heating the crude pentaerythritol as a dry substance at temperatures from 160 to 200.degree.C.
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公开(公告)号：FI803318L
公开(公告)日：1981-06-13
申请号：FI803318
申请日：1980-10-22
Applicant: DEGUSSA
Inventor： FISCHER WOLFGANG , LANGER MANFRED , POHL GERHARD
Abstract: The known process for the production of cationic starch ethers by the reaction of starch with cationic etherifying agents in the presence of water in an alkaline medium is improved by reacting the starch at a temperature of about 50 DEG to 120 DEG C. with an alkylidene epoxide which has a tertiary amino group or quaternary ammonium group in a medium which contains about 10 to 35 weight percent water and about 0.2 to 2.0 weight percent calcium hydroxide or calcium oxide. There are produced in short reaction times yields not previously attainable.
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公开(公告)号：CA961341A
公开(公告)日：1975-01-21
申请号：CA110967
申请日：1971-04-21
Applicant: DEGUSSA
Inventor： BERTRAM HEIDRUN , MULLER KARL-HANS , POHL GERHARD , FAHNENSTICH RUDOLF
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公开(公告)号：FI66399C
公开(公告)日：1984-10-10
申请号：FI803318
申请日：1980-10-22
Applicant: DEGUSSA
Inventor： FISCHER WOLFGANG , POHL GERHARD , LANGER MANFRED
IPC: C08B31/12
Abstract: The known process for the production of cationic starch ethers by the reaction of starch with cationic etherifying agents in the presence of water in an alkaline medium is improved by reacting the starch at a temperature of about 50 DEG to 120 DEG C. with an alkylidene epoxide which has a tertiary amino group or quaternary ammonium group in a medium which contains about 10 to 35 weight percent water and about 0.2 to 2.0 weight percent calcium hydroxide or calcium oxide. There are produced in short reaction times yields not previously attainable.
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Patent Agency Ranking
公开(公告)号：CA2037873A1
公开(公告)日：1991-09-11
申请号：CA2037873
申请日：1991-03-08
Applicant: DEGUSSA
Inventor： POHL GERHARD , WERLE PETER
IPC: A23K20/105 , A23K20/24 , C07C51/41 , C07C51/347 , A23K1/16 , C07C53/06
Abstract: Calcium formate can be produced with high space-time yields and low engineering expenditure by reacting methyl formate and calcium hydroxide in a molar ratio of substantially 2:1 in an aqueous suspension at 20 to 100.degree.. At the start of the reaction the weight ratio of calcium hydroxide to water is 1:1 to 1:5. Prior to or upon distilling off the methanol formed, the crystalline calcium formate is separated from the aqueous phase and dried. The calcium formate thus produced is better suited as a feed additive than calcium formate obtained as by-product in the production of polyols.
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公开(公告)号：DK149453C
公开(公告)日：1986-11-17
申请号：DK167280
申请日：1980-04-18
Applicant: DEGUSSA
Inventor： WERLE PETER , MERK WOLFGANG , POHL GERHARD , HOEVELS FRIEDHELM
IPC: C07C45/00 , C07C47/058 , C07C67/00 , C07D251/18 , C09K15/30
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公开(公告)号：DK149453B
公开(公告)日：1986-06-16
申请号：DK167280
申请日：1980-04-18
Applicant: DEGUSSA
Inventor： WERLE PETER , MERK WOLFGANG , POHL GERHARD , HOEVELS FRIEDHELM
IPC: C07C45/00 , C07C47/058 , C07C67/00 , C07D251/18 , C09K15/30
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公开(公告)号：FI60638C
公开(公告)日：1982-03-10
申请号：FI770722
申请日：1977-03-07
Applicant: DEGUSSA
Inventor： BERTRAM HEIDRUN LEONORE , FAHNENSTICH RUDOLF , TANNER HERBERT , POHL GERHARD
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公开(公告)号：FI60638B
公开(公告)日：1981-11-30
申请号：FI770722
申请日：1977-03-07
Applicant: DEGUSSA
Inventor： BERTRAM HEIDRUN LEONORE , FAHNENSTICH RUDOLF , TANNER HERBERT , POHL GERHARD
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