中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

89 records (took 0.013 seconds)

    Production of addition compounds containing formic acid
    51.
    发明授权
    Production of addition compounds containing formic acid 失效
    生产含有甲酸的加成化合物

    公开(公告)号：US3414610A

    公开(公告)日：1968-12-03

    申请号：US43417765

    申请日：1965-02-18

    Applicant: BAYER AG

    Inventor： KUNO WAGNER ,  HANS HOLTSCHMIDT

    IPC: C01B32/40 ,  C07C53/06 ,  C07D251/04

    CPC classification number: C07C53/06 ,  C01B32/40 ,  C07D251/04

    Abstract: Carbon monoxide is obtained by decomposing at 130-200 DEG C. the addition products obtainable from 1 mol. of a tertiary amine and 2-8 mols. of formic acid (see Division C2).ALSO:The invention relates to addition products of formic acid and tertiary organic bases, the products having the formula in which n is 2-8 and each R denotes an optionally substituted aliphatic, aromatic, cycloaliphatic or heterocyclic radical, two or three of which may be combined with the nitrogen atom to form a ring. The specified tertiary amines include trimethylamine, diethylpropylamine, dimethylstarylamine, permethylated ethylene diamine, dimethylcyclohexylamine, dimethylbenzylamine, pyridine, quinoline, N-methylmorpholine and N,N1-dimethylpiperazine, but others are specified also. In one example, trimethylamine and an excess of formic acid are mixed at 20-40 DEG C. and the mixture is distilled under reduced pressure whereby, after distillation of water and excess of formic acid, an addition product of 1 mol. of trimethylamine and 3 mols. of formic acid distils over. Other methods of procedure are also indicated, including methods in which the amine or the acid is produced in situ. Compounds of the formula (CH3)3N.(HCOOH)3, (C2H5)3N.(HCOOH)3, (C2H5) (CH3)2N.(HCOOH)3 and (C2H5)2(CH3)N.(HCOOH)3 are specifically claimed.

    Process for the production of polyether-thioethers
    55.
    发明授权
    Process for the production of polyether-thioethers 失效
    聚醚硫醚生产工艺

    公开(公告)号：US3335189A

    公开(公告)日：1967-08-08

    申请号：US36293264

    申请日：1964-04-27

    Applicant: BAYER AG

    Inventor： EBERHART DEGENER ,  HANS-GEORG SCHMELZER ,  HANS HOLTSCHMIDT

    IPC: C08G65/34 ,  C08G75/12 ,  C08K5/372

    CPC classification number: C08K5/372 ,  C07C323/00 ,  C08G65/34 ,  C08G75/12

    Abstract: Polyether-thioethers of the general formula: R1-O-(CHR2-CHR3-O) m-(CHR4-CHR5-S-CHR6-CHR7-O) n-(CHR8-CHR9-O)p-R10 wherein R1 and R10 stand for linear or branched alkyl radicals containing 1 to 22, preferably 3 to 18, carbon atoms, R2, R3, R4, R5, R6, R7, R8 and R9 denote hydrogen atoms and/or identical or different linear or branched alkyl radicals containing 1 to 12 carbon atoms, and m, n and p are whole numbers from 1 to 10, preferably 1 to 5, are prepared by reaction between a compound of the general formula: R1-O-(CHR2-CHR3-O)m-H (I), a compound of the general formula: R10-O-(CHR9-CHR8-O)p-H (II), and a bis-(hydroxyalkyl) sulphide of the general formula: HO-CHR4-CHR5-S-CHR6-CHR7-OH in the presence of an acid or of a compound which forms an acid under the reaction conditions. The compounds of general formula (I) and (II) and the dihydroxy-alkyl sulphide are preferably used in a molecular ratio of from 5:1 to 2:5. Numerous suitable starting materials and acids or acid-forming compounds are specified. The compounds of formulae (I) and (II) may be prepared by reacting aliphatic monohydric alcohols simultaneously or in any order with ethylene- and propylene oxides. Examples are given. The compounds may be used as lubricants.ALSO:Polyether-thioethers of the general formula R1 - O - (CHR2 - CHR3 - O)m - (CHR4 - CHR5 - S - CHR6 - CHR7 - O)n - (CHR8 -CHR9-O)p-R10 where R1 and R10 denote linear or branched alkyl radicals containing 1-22 carbon atoms, R2, R3, R4, R5, R6, R7, R8 and R9 denote hydrogen atoms and/or identical or different linear or branched alkyl radicals containing 1-12 carbon atoms, and m, n and p are whole numbers from 1 to 10 may be used as lubricants, hydraulic fluids and in metal working and may contain lubricant additives such as those based on phenols or aromatic amines. Aqueous emulsions of the oil produced in Example 4 are stated to be useful for metal cutting or drilling.

Patent Agency Ranking