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    HYPERBRANCHED POLYESTER POLYOLS SUITABLE FOR USE IN ORGANIC SOLVENT-BASED TWO-COMPONENT POLYURETHANE COATING COMPOSITIONS
    1.
    发明申请
    HYPERBRANCHED POLYESTER POLYOLS SUITABLE FOR USE IN ORGANIC SOLVENT-BASED TWO-COMPONENT POLYURETHANE COATING COMPOSITIONS 有权

    公开(公告)号：US20230085525A1

    公开(公告)日：2023-03-16

    申请号：US17800235

    申请日：2021-02-10

    Applicant: BASF SE

    Inventor： Florian Ludwig GEYER ,  Sebastian ROLLER ,  Oliver NEU

    IPC: C08G18/42 ,  C08G18/34 ,  C08G18/02

    Abstract: The present invention relates to polyester polyols comprising units derived from a) at least one COOH group or derivative thereof carrying component or mixture of components (A) comprising at least one compound carrying two COOH groups or derivatives thereof (A1), b) at least one OH group carrying component or mixture of components (B) comprising (i) at least one compound carrying three OH groups selected from the group consisting of 1,3,5-tris(hydroxymethyl)isocyanurate, 1,3,5-tris(2-hydroxyethyl) isocyanurate, 1,3,5-tris(2-hydroxyisopropyl)isocyanurate, 1,3,5-tris(2-hydroxypropyl)isocyanurate and 1,3,5-tris(2-hydroxybutyl)isocyanurate (B1), (ii) at least one compound carrying two OH groups selected from the group consisting of 1,1-bis(hydroxymethyl)-cyclohexane, 1,2-bis(hydroxymethyl)-cyclohexane, 1,3-bis(hydroxymethyl)-cyclohexane, 1,4-bis(hydroxymethyl)-cyclohexane, 1,1-bis(hydroxyethyl)-cyclohexane, 1,2-bis(hydroxyethyl)-cyclohexane, 1,3-bis(hydroxyethyl)-cyclohexane and 1,4-bis(hydroxyethyl)cyclohexane (B2), (iii) optionally at least one compound or polymer carrying at least three OH groups, which is different from B1 (B3), and (iv) optionally at least one compound or polymer carrying two OH groups, which is different from B2 (B4), and c) optionally at least one compound carrying at least one OH group and at least one COOH group or a derivative thereof (C), and to organic-solvent based two-component coating compositions comprising a) a first component (K1) comprising (i) at least one polyester polyol of the present invention and (ii) optionally at least one polymer carrying more than one OH group, which is different from the polyester polyol of the present invention (D), and b) a second component (K2) comprising (i) at least one compound, oligomer or polymer carrying more than one N═C═O group or blocked N═C═O group (F).

    COLOR-STABLE CURING AGENT COMPOSITIONS COMPRISING WATER-DISPERSIBLE POLYISOCYANATES
    3.
    发明申请
    COLOR-STABLE CURING AGENT COMPOSITIONS COMPRISING WATER-DISPERSIBLE POLYISOCYANATES 有权

    公开(公告)号：US20230095196A1

    公开(公告)日：2023-03-30

    申请号：US17795594

    申请日：2021-01-21

    Applicant: BASF SE

    Inventor： Frederic LUCAS ,  Sebastian ROLLER

    IPC: C08K5/13 ,  C09D175/08 ,  C08G18/08 ,  C08G18/79 ,  C08G18/70 ,  C08G18/28

    Abstract: A polyisocyanate composition comprising (A) at least one polyisocyanate obtainable by reacting (c) at least one diisocyanate or polyisocyanate, (d) at least one surfactant comprising a mixture of compounds based on the following formulae (I) and (II); in which R1 and R2 independently of one another are alkyl, cycloalkyl or aryl, it being possible for each of the stated radicals to be substituted by aryl, alkyl, aryloxy, alkyloxy, heteroatoms and/or heterocycles, said mixture of compounds of formulae (I) and (II) being characterised in that the molar ratio between compound (II), i.e. the monoester-type compound, and compound (I), i.e. the diester-type compound, is from 5:95 to 95:5, and (c) at least one monofunctional polyalkylene glycol, —and (B) at least one sterically hindered phenol.

    POLYESTER POLYOLS COMPRISING 2,5-BIS(HYDROXYMETHYL)TETRAHYDROFURAN
    5.
    发明公开
    POLYESTER POLYOLS COMPRISING 2,5-BIS(HYDROXYMETHYL)TETRAHYDROFURAN 审中-公开

    公开(公告)号：US20240059833A1

    公开(公告)日：2024-02-22

    申请号：US18266824

    申请日：2021-12-15

    Applicant: BASF SE

    Inventor： Elena WOLF ,  Florian Ludwig GEYER ,  Sebastian ROLLER ,  Steffen MADER ,  Sylvester GROESSL

    IPC: C08G63/668 ,  C08G18/42 ,  C09D167/00 ,  C09D175/06

    CPC classification number: C08G63/668 ,  C08G18/4247 ,  C09D167/00 ,  C09D175/06 ,  C08G2150/00

    Abstract: The present invention relates to polyester polyols comprising units derived from



    a) at least one component (A) carrying at least one COOH group or a derivative thereof, wherein component (A) comprises

    (i) at least one compound carrying two COOH groups or derivatives thereof (A1), and


    b) at least one component (B) carrying at least one OH group and no COOH group, wherein component (B) comprises

    (ii) optionally at least one compound or oligomer carrying at least three OH groups and no COOH group (B1),
    (iii) at least one compound carrying two OH groups (B2) of formula














    wherein n and m are independently from each other 0 or 1, and R1 and R2 are independently selected from the group consisting of H, CH3 and CH2CH3, and
    (iv) optionally at least one compound, oligomer or polymer carrying two OH groups and no COOH group, which is different from B2 (B3),


    and to an organic solvent-based two-component coating composition comprising
    a) a first component (K1) comprising (i) at least one polyester polyol of the present invention, and (ii) optionally at least one polymer carrying more than one OH group, which is different from the polyester polyol of the present invention, (D), and
    b) a second component (K2) comprising (i) at least one compound, oligomer or polymer carrying more than one N═C═O group or blocked N═C═O group (F),
    to substrates coated with the coating composition, and to coating layers on a substrate formed from the coating compositions.

    WATERBASED BINDER FOR TWO-COMPONENT COATING COMPOSITION
    6.
    发明公开
    WATERBASED BINDER FOR TWO-COMPONENT COATING COMPOSITION 审中-公开

    公开(公告)号：US20240052068A1

    公开(公告)日：2024-02-15

    申请号：US18038224

    申请日：2021-11-15

    Applicant: BASF SE

    Inventor： Sebastian ROLLER ,  Quirin Maximilian KAINZ ,  Chintankumar Jayantilal PATEL ,  Rabie AL-HELLANI

    IPC: C08F2/38 ,  C08F2/26 ,  C09D133/12 ,  C09D7/20

    CPC classification number: C08F2/38 ,  C08F2/26 ,  C09D133/12 ,  C09D7/20

    Abstract: The present invention relates process for preparing an aqueous polymer dispersion by radically initiated aqueous emulsion polymerization, which comprises polymerizing, in an aqueous polymerization medium a) in a first polymerization stage ≥0.5 and ≤15 wt % of at least one α,β-monoethylenically unsaturated C3 to C6 monocarboxylic or dicarboxylic acid (monomers A1), ≥5 and ≤40 wt % of at least one monoethylenically unsaturated compound having at least one hydroxyl group (monomers B1), ≥0-≤40 wt % of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure (monomers C1), ≥15 and ≤94.5 wt % of at least one ethylenically unsaturated compound which is different from the monomers A1, B1 and C1 (monomers D1), the amounts of the monomers A1 to D1 adding up to 100 wt %, in the presence of at least one radical initiator and at least one chain transfer agent, and also, optionally, in the presence of a dispersing assistant, with the provisos that ⋅the amount of chain transfer agent is selected such that the polymer 1 obtained from the first polymerization stage has a weight-average molecular weight in the range of ≥5000 and ≤40000 g/mol, ⋅the nature and amounts of the monomers A1 to D1 are selected such that the resulting polymer 1 has a glass transition temperature Tg1 as measured to DIN EN ISO 11357-2 (2013 September) ≥15° C., and thereafter polymerizing, in the presence of the polymer 1 b) in a second polymerization stage ≥0 and ≤1.0 wt % of at least one α,β-monoethylenically unsaturated C3 to C6 monocarboxylic or dicarboxylic acid (monomers A2), ≥0.1 and ≤40 wt % of at least one monoethylenically unsaturated compound having at least one hydroxyl group (monomers B2), ≥0-≤40 wt % of carboxyl-free (meth)acrylic esters with a cycloaliphatic structure (monomers C2) ≥30 and ≤99.9 wt % of at least one ethylenically unsaturated compound which is different from the monomers A2, B2 and C2 (monomers D2), the amounts of the monomers A2 to D2 adding up to 100 wt %, in the presence of at least one radical initiator and at least one chain transfer agent, and also, optionally, in the presence of a dispersing assistant, with the provisos that ⋅the weight ratio of the sum of the total amounts of monomers A1 to D1 (total monomer amount 1) to the sum of the total amounts of monomers A2 to D2 (total monomer amount 2) is in the range 25:75 to 50:50, ⋅the amount of chain transfer agent in the second polymerization stage is selected such that the overall polymer obtained after the second polymerization stage has a weight-average molecular weight ≥5000 and ≤75000/mol, and ⋅the amount of the dispersing assistant is ≤3.0 wt %, based on the sum of total monomer amount 1 and total monomer amount 2 (total monomer amount), ⋅that the sum of the total amounts of monomers C1 and C2 is 7 to 40 wt % based on the sum of total monomer amount 1 and total monomer amount 2; the aqueous polymer dispersion itself, its use and coating compositions comprising the aqueous polymer dispersion.

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