231.
    发明专利
    未知

    公开(公告)号:TR199900422T2

    公开(公告)日:1999-04-21

    申请号:TR9900422

    申请日:1997-08-26

    Applicant: BASF AG

    Abstract: A process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a pressure from 0.1 to 35x106 Pa to obtain a reaction mixture,(2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and the pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 360° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.

    232.
    发明专利
    未知

    公开(公告)号:NO991354D0

    公开(公告)日:1999-03-19

    申请号:NO991354

    申请日:1999-03-19

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/04908 Sec. 371 Date Mar. 17, 1999 Sec. 102(e) Date Mar. 17, 1999 PCT Filed Sep. 19, 1997 PCT Pub. No. WO98/12242 PCT Pub. Date Mar. 20, 1998Biodegradable polyesters based on A) 95-99.99 mol % of at least one polyester A containing as monomeric building blocks of an acid component comprising a11) 20-95 mol % of at least one aliphatic or cycloaliphatic dicarboxylic acid or its ester-forming derivative and a12) 5-80 mol % of at least one aromatic dicarboxylic acid or its ester-forming derivative and at least one dihydroxy compound or at least one amino alcohol or their mixtures, and B) 0.01-5 mol % of a mixture comprising mono-, bi-, tri-, tetra- and higher-nuclear isocyanurates or corresponding compounds containing two, three or four functional groups capable of reacting with the end groups of polyester A, or mixtures of the isocyanurates and the corresponding compounds, as well as molding compositions comprising said polyesters, their manufacture and their use in the manufacture of moldings, filsm, fibers and coatings.

    233.
    发明专利
    未知

    公开(公告)号:AT177445T

    公开(公告)日:1999-03-15

    申请号:AT94920959

    申请日:1994-06-20

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/01998 Sec. 371 Date Dec. 28, 1995 Sec. 102(e) Date Dec. 28, 1995 PCT Filed Jun. 20, 1994 PCT Pub. No. WO95/01389 PCT Pub. Date Jan. 12, 1995A process for the continuous production of polyamides from a mixture of at least one lactam and water and, if required, other monomer units and/or conventional additives and fillers under polyamide-forming conditions, where the mixture of the starting materials is heated in liquid phase in a first reaction zone until a conversion of at least 70% is reached, and undergoes adiabatic decompression and further polymerization in another reaction zone, wherein, in the first reaction zone, 0.5-7% by weight of water are employed, the temperature is increased to the range from 220 DEG to 310 DEG C., and polymerization is carried out until a conversion of at least 85% is reached and, in the second reaction zone, after the decompression further polymerization is carried out in the range from 215 DEG to 300 DEG C. without heat input.

    234.
    发明专利
    未知

    公开(公告)号:DE59502670D1

    公开(公告)日:1998-08-06

    申请号:DE59502670

    申请日:1995-04-15

    Applicant: BASF AG

    Abstract: Thermoplastic moulding materials (I) contain (A) 5-95 wt.% partly aromatic, partly crystalline copolyamide, derived mainly from (a1) 30-44 mole% terephthalic acid (TPA) units, (a2) 6-20 mole% isophthalic acid (IPA) units, (a3) 43-49.5 mole% hexamethylenediamine (HDA) units and (a4) 0.5-7 mole% 6-30C aliphatic cyclic diamine units, (B) 5-95 wt.% polyphenylene ether (PPE), (C) 0-30 wt.% rubber-elastic polymer, (D) 0-45 wt.% fibrous and/or particulate filler, (E) 0-20 wt.% fire retardant and (F) 0-30 wt.% normal additives and processing aids. Also claimed are moulded prods. obtd. from (I).

    PROCESS FOR PRODUCING POLYAMIDES FROM AMINONITRILES

    公开(公告)号:CA2264023A1

    公开(公告)日:1998-03-05

    申请号:CA2264023

    申请日:1997-08-26

    Applicant: BASF AG

    Abstract: A process for producing a polyamide by reacting at least one aminonitrile with water has the following steps: (1) at least one aminonitrile is reacted with water at a temperature from 100 to 360 ~C and pressure from 0.1 to 35.x 106 Pa, yielding a reaction mixture; (2) the reaction mixture is further reacted at a temperature from 150 to 400 ~C and pressure lower than the pressure in step 1. The temperature and pressure are selected to yield a first gaseous phase and a first liquid or solid phase or a mixture of a first solid and a first liquid phase. The first gaseous phase is separated from the first liquid or solid phase or the mixture of a first liquid and a first solid phase is separated; and (3) the first liquid or solid phase or the mixture of a first liquid and first solid phase is mixed with a water-containing gaseous or liquid phase at a temperature from 150 to 360 ~C and pressure from 0.1 to 30 x 106 Pa, yielding a product mixture. Also disclosed are other embodiments of this process and the thus produced polyamides.

    238.
    发明专利
    未知

    公开(公告)号:NO973766D0

    公开(公告)日:1997-08-15

    申请号:NO973766

    申请日:1997-08-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00458 Sec. 371 Date Aug. 14, 1997 Sec. 102(e) Date Aug. 14, 1997 PCT Filed Feb. 3, 1996 PCT Pub. No. WO96/25448 PCT Pub. Date Aug. 22, 1996Biodegradable polymers comprising a polyether ester P1 obtained by reacting a first mixture of 20-95 mol% of adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-80 mol% of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and 0-5 mol% of a compound containing sulfonate groups, and a second mixture of 15-99.8 mol% of a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, 85-0.2 mol% of a dihydroxy compound IHO-[(CH2)n-O]m-H(n=2, 3 or 4, m=2-250) with 0-5 mol%, based on the first mixture, of a compound D having at least three groups capable of ester formation, and a bisoxazoline C1, their preparation and their use in the manufacture of biodegradable molding materials.

    239.
    发明专利
    未知

    公开(公告)号:FI973358A0

    公开(公告)日:1997-08-15

    申请号:FI973358

    申请日:1997-08-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00458 Sec. 371 Date Aug. 14, 1997 Sec. 102(e) Date Aug. 14, 1997 PCT Filed Feb. 3, 1996 PCT Pub. No. WO96/25448 PCT Pub. Date Aug. 22, 1996Biodegradable polymers comprising a polyether ester P1 obtained by reacting a first mixture of 20-95 mol% of adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-80 mol% of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and 0-5 mol% of a compound containing sulfonate groups, and a second mixture of 15-99.8 mol% of a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, 85-0.2 mol% of a dihydroxy compound IHO-[(CH2)n-O]m-H(n=2, 3 or 4, m=2-250) with 0-5 mol%, based on the first mixture, of a compound D having at least three groups capable of ester formation, and a bisoxazoline C1, their preparation and their use in the manufacture of biodegradable molding materials.

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