Amino-Schiff's base di:amino-ketone and aminocarboxylic acid salt - prepd. by heating omega-lactam or deriv. with water and carbonate, aminocarboxylic acid

    公开(公告)号:FR2477143A1

    公开(公告)日:1981-09-04

    申请号:FR8004432

    申请日:1980-02-28

    Abstract: An amino-Schiff's base, of formula (I), and/or a diaminoketone (II) having formula NH2(CH2)n-CO-(CH2)n-NH2 (where n is integer 3-11), is/are prepd. from a raw material consisting of 4-12C omega-lactams, their oligomers, their ring-opened polymers and/or corresp. omega-aminocarboxylic acids. Process comprises (a) heating the raw material with water and a carbonate of Li, Ca and/or Ba in a reactor heated to 60-350 deg.C, removing CO2 generated and recovering a metal salt, (III), of an omega-aminocarboxylic acid. (b) (III) is heated to 250-550 deg.C and converted to (I) and/or (II). A carbonate of Li, Ca and/or Ba is also generated. (c) The metal carbonate formed in (b) is returned to step (a), for further use. Provision of salt-forming step (a) forms a use for the by-prod. formed in (b). Water addn. in (a) prevents cyclisation.

    5.
    发明专利
    未知

    公开(公告)号:DE2938866A1

    公开(公告)日:1981-04-09

    申请号:DE2938866

    申请日:1979-09-26

    Abstract: An omega -lactam having 4-12 carbon atoms, an oligomer thereof or a ring-opened polymer or an omega -amino carboxylic acid corresponding thereto, is heated in the presence of water and a metallic carbonate compound to obtain a metallic salt of omega -amino carboxylic acid. Barium, calcium and lithium are the preferred metals. The resulting metal salt is converted to an amino Schiff base which may be used as a starting material for preparing an alpha , omega -diamino alkane which may or may not include an amino group as a side chain. This further produces a metallic carbonate compound. The metallic carbonate is returned and used again as a reagent for forming the metal salt of the omega -amino carboxylic acid to create a closed system.

    POLYESTER COMPOSITION
    6.
    发明专利

    公开(公告)号:JPH0711115A

    公开(公告)日:1995-01-13

    申请号:JP15767593

    申请日:1993-06-28

    Abstract: PURPOSE:To obtain a polyester composition which gives a filmy, fibrous, or other material having good wearing resistance with little particle falling by incorporating a given amount of silicone particles having a specific average particle diameter and a specific composition. CONSTITUTION:Silicone particles which have an average particle diameter defined by equation I (wherein Dave is average particle diameter; Di is each of the diameters (mum) of the circles corresponding to individual particles; and (n) is the number of particles) of 0.01-2mum and consist of a polysiloxane represented by formula II (wherein R1 is methyl; R2 is amino, acryloyloxy, methacryloyloxy, epoxy, mercapto, chlorine, etc.; R3 is a 2C or higher alkyl, an alkenyl, phenyl, benzyl, phenethyl, a fluoroalkyl, etc.; and (l), (m), and (n) each is 0 or larger, provided that l+m+n=1 and 0.01

    PRODUCTION OF SPHERICAL SILICONE FINE PARTICLE

    公开(公告)号:JPH06248081A

    公开(公告)日:1994-09-06

    申请号:JP3907893

    申请日:1993-02-26

    Abstract: PURPOSE:To obtain the subject fine particles having extremely narrow particle size distribution at a low cost without using particular apparatus by using a methyltrialkoxysilane having specific residual chlorine content, its partially hydrolyzed and condensed product and water having specified specific conductance. CONSTITUTION:A homogenized mixture is produced by mixing 1 pt.wt. of water having a specific conductance of

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