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    Prepn. of vinyl] polymers of low mol. wt.
    31.
    发明专利
    Prepn. of vinyl] polymers of low mol. wt. 未知

    公开(公告)号：DE4203278A1

    公开(公告)日：1993-08-12

    申请号：DE4203278

    申请日：1992-02-06

    Applicant: BASF AG

    Inventor： KEMPTER FRITZ ERDMANN DR ,  NIESSNER MANFRED DR ,  DIENER RALPH DR ,  THIELE HEINO DR ,  WEISS WOLFRAM DR ,  RENZ HANS DR

    IPC: B01J19/18 ,  C08F2/00

    Abstract: The continuous polymerisation of vinyl monomers by formation of vinyl polymers (I) with a mol. wt. of 1000-20,000 is claimed. The polymerisation is carried out at 110-270 deg. C in a ring slit (slit width 0.5-1.00 mm) that is bounded on the inner side by a rotor. Also claimed is the use of (I) as binding agents for paints, protective coatings, paper coating materials and printing inks. The reaction temp. is 150-270 deg. C and the polymer dispersivity (Mw/Mn) of (I) is less than 3.5. A portion of the volumetric flow is recirculated through the ring slit such that the recycle ratio of recirculated volumetric flow to throughput is 2-35. The rotor promotes reacton by thorough mixing and has a tangential avelocity of 0.5-2 m/s. The reaction is carried out in 0-40% of a solvent (w.r.t. monomer). The mixt. of monomers comprises 60-100 wt.% (meth)acrylic acid esters. Polymerisation initiator is added in a molar ratio of 0.0005:1 to 0.1:1 (w.r.t. monomer).

    Prepn. of vinyl] polymers of low mol. wt.
    32.
    发明专利
    Prepn. of vinyl] polymers of low mol. wt. 未知

    公开(公告)号：DE4203277A1

    公开(公告)日：1993-08-12

    申请号：DE4203277

    申请日：1992-02-06

    Applicant: BASF AG

    Inventor： KEMPTER FRITZ ERDMANN DR ,  NIESSNER MANFRED DR ,  DIENER RALPH DR ,  THIELE HEINO DR ,  WEISS WOLFRAM DR ,  RENZ HANS DR

    IPC: B01J19/18 ,  C08F2/00

    Abstract: The continuous polymerisation of vinyl monomers by formation of vinyl polymers (I) with a mol. wt. of 1000-20,000 is claimed. The polymerisation is carried out at 110-270 deg. C in a ring slit (slit width 0.5-1.00 mm) that is bounded on the inner side by a rotor. Also claimed is the use of (I) as binding agents for paints, protective coatings, paper coating materials and printing inks. The reaction temp. is 150-270 deg. C and the polymer dispersivity (Mw/Mn) of (I) is less than 3.5. A portion of the volumetric flow is recirculated through the ring slit such that the recycle ratio of recirculated volumetric flow to throughput is 2-35. The rotor promotes reacton by thorough mixing and has a tangential avelocity of 0.5-2 m/s. The reaction is carried out in 0-40% of a solvent (w.r.t. monomer). The mixt. of monomers comprises 60-100 wt.% (meth)acrylic acid esters. Polymerisation initiator is added in a molar ratio of 0.0005:1 to 0.1:1 (w.r.t. monomer).

    33.
    发明专利
    未知

    公开(公告)号：DE3870648D1

    公开(公告)日：1992-06-11

    申请号：DE3870648

    申请日：1988-02-06

    Applicant: BASF AG

    Inventor： BECK ERICH DR ,  WEISS WOLFRAM DR ,  SCHMIDT HORST DR

    IPC: C08F20/26 ,  C07C67/08 ,  C07C67/26 ,  C07C67/60 ,  C07C69/54 ,  C08F2/50 ,  C08F20/28 ,  C08F299/00 ,  C08F299/04 ,  C08L63/00 ,  C09D167/07

    Abstract: Acrylates (I) obtainable by reacting (A) 1equiv. 2- to 6-functional oxyalkylated 2-10C alcohol (B) 0.05-1 equiv. 2-to 4-functional 3-36 carboxylic acid or its anhydride and (C) 0.1-1.5 equiv. acrylic and/or methacrylic acid and reaction of excess COOH gps. with (D) equiv. amt. of an epoxide cpd. are claimed. Prepn. of (I) by 1) esterifying (A), (B) and (C) at 60-140 deg. C in presence of acid esterification catalyst, at least one hydrocarbon forming azeotropic mixt. with water, and small amt. of polymerisation inhibitor 2) removing the hydrocarbon by distn. 3) neutralising the esterification catalyst 4) reacting excess COOH with (D).

    39.
    发明专利
    未知

    公开(公告)号：DE3138548A1

    公开(公告)日：1983-04-07

    申请号：DE3138548

    申请日：1981-09-28

    Applicant: BASF AG

    Inventor： HAHN HERBERT DR ,  HUMMERICH RAINER DR ,  IMMEL GUENTHER DR ,  KRAUSE HANS-JOACHIM DR ,  PETERS KARL-CLEMENS DR ,  WEISS WOLFRAM DR

    IPC: C08G12/30 ,  C08G12/32 ,  C08G12/42 ,  C09D3/50

    Abstract: A process for the preparation of etherified or non-etherified aminoplast resins, wherein an aminotriazine of the general formula (I) (I) where X is hydrogen, alkyl, phenyl, alkylphenyl or -NH2, is reacted with a beta -hydroxyaldehyde of the general formula (II) (II) where R', R'' and R''' are identical or different and each is hydrogen or alkyl, or R'' and R''', together with the alpha -carbon atom, are a cyclopentane or cyclohexane ring, and R'' and/or R''' can be hydroxyalkyl and R'' can be phenyl, the reaction being carried out in the presence of not less than one alcohol and an acid catalyst for the preparation of etherified aminoplast resins and in the presence or absence of an acid catalyst for the preparation of non-etherified aminoplast resins. The aminoplast resins prepared according to the invention can be used as surface-coatings raw materials.

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