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    Polymer, process and use
    22.
    发明授权
    Polymer, process and use 有权

    公开(公告)号：US10767072B2

    公开(公告)日：2020-09-08

    申请号：US15519354

    申请日：2015-10-21

    Applicant: DSM IP Assets B.V.

    Inventor： Tijs Nabuurs ,  Willem-Jan Soer ,  Gerardus Cornelis Overbeek

    IPC: C09D151/00 ,  C09D4/00 ,  B05D7/02 ,  B05D7/08 ,  B05D7/14 ,  C03C17/32 ,  C08F265/06 ,  C23C26/00 ,  C08F265/04

    Abstract: The current invention relates to a process for preparing an aqueous binder composition free of organic solvent, the process comprising at least the following steps: A) preparing a hydrophilic vinyl polymer (Polymer A) by polymerisation of a monomer composition A that contains: Ai) at least one carboxylic acid functional olefinically unsaturated monomer; and Aii) at least one olefinically unsaturated monomer different than Ai); and Aiii) optionally at least one wet adhesion promoting olefinically unsaturated monomer different than Ai and Aii); where Polymer A has an acid value (AV) from 32 to 98 mg KOH/g of solid Polymer A; B) preparing a hydrophobic vinyl polymer (Polymer B) by emulsion polymerization of a monomer composition B in the presence of Polymer A where the monomer composition B contains: Bi) at least one olefinically unsaturated monomer; Bii) optionally carboxylic acid functional olefinically unsaturated monomer different than Bi); and Biii) optionally wet adhesion promoting olefinically unsaturated monomer different than Bi); where Polymer B has an acid value (AV) of no more than 23.4 mg KOH/g of solid polymer B, wherein at least a part of the carboxylic acid groups that are present in Polymer A and Polymer B are neutralized during or following the steps A and/or B to form a (partially) neutralized polymer emulsion; where the weight average molecular weight (Mw) of Polymer A is lower than the weight average molecular weight (Mw) of polymer B; and wherein the process is further characterized by the presence of a further step C) reacting at least 10 mol % of the carboxylic acid and/or carboxylate salt groups of the (partially) neutralized polymer emulsion with an iminating agent to produce an iminated polymer C; wherein the total amount of surfactant applied in steps A, B and C is at most 0.5 wt. %, based on the total weight of monomers charged for the preparation of polymer A and polymer B.

    Aqueous coating composition with soft touch upon drying
    23.
    发明授权
    Aqueous coating composition with soft touch upon drying 有权

    公开(公告)号：US10428237B2

    公开(公告)日：2019-10-01

    申请号：US15538054

    申请日：2015-12-22

    Applicant: DSM IP Assets B.V.

    Inventor： Roel Johannes Marinus Swaans ,  Ronald Tennebroek ,  Gerardus Cornelis Overbeek ,  Paul De Kok

    IPC: C08G18/00 ,  C08G61/04 ,  C09D175/08 ,  C08G18/48 ,  C08J3/03 ,  C08G18/75 ,  C08G18/79 ,  C08G18/08 ,  C08G18/10 ,  C08G18/22 ,  C08G18/32 ,  C08L75/08

    Abstract: The present invention relates to an aqueous coating composition comprising dispersed polymer particles, wherein (i) the dispersed polymer particles are polyurethane-vinyl polymer hybrid particles obtained by free-radical polymerization of at least one vinyl monomer in the presence of a polyurethane, (ii) the polyurethane and the vinyl polymer in the hybrid particles are present in a weight ratio of polyurethane to vinyl polymer ranging from 1:1 to 20:1, (iii) the polyurethane is the reaction product of at least the following components: (a) from 5 to 40 wt. % of at least one organic difunctional isocyanate, (b) from 0.5 to 4 wt. % of an isocyanate-reactive compound containing ionic or potentially ionic water-dispersing groups having a molecular weight of from 100 to 500 g/mol, (c) from 40 to 80 wt. % of at least one diol having a molecular weight from 500 to 5000, (d) from 0 to 10 wt. % of at least one active-hydrogen chain extending compound with a functionality of at least 2 (other than water), (e) from 0 to 10 wt. % of at least one diol having a molecular weight below 500 g/mol, where the amounts of (a), (b), (c), (d) and (e) are given relative to the total amount of components used to prepare the polyurethane from which the building blocks of the polyurethane are emanated, and where the isocyanate and hydroxy groups on the components used to prepare the polyurethane are present in a respective mole ratio (NCO to OH) in the range of from 0.8:1 to 5:1, preferably from 1.05:1 to 5:1 and even more preferably from 1.1:1 to 3.5:1.

    POLYMER, COMPOSITIONS AND PROCESS FOR PREPARING THEM
    28.
    发明申请
    POLYMER, COMPOSITIONS AND PROCESS FOR PREPARING THEM 审中-公开
    聚合物，组合物和制备方法

    公开(公告)号：US20140242399A1

    公开(公告)日：2014-08-28

    申请号：US14350958

    申请日：2012-10-25

    Applicant: DSM IP ASSETS B.V.

    Inventor： Tijs Nabuurs ,  Gerardus Cornelis Overbeek ,  Michel Johannes Jan Ruts ,  Ronald Tennebroek

    IPC: C08G18/38 ,  C09D175/12

    CPC classification number: C08G18/3893 ,  C08G18/289 ,  C09D175/12 ,  Y10T428/31663

    Abstract: There is described a process for preparing an silane-functional oligomer (such as an alkoxysilane polyurethane) suitable for use as a crosslinkable coating component, the process comprising the steps of: 1) reacting an aminoalkyl silane with a cyclic carbonate, lactone or lactam to form a hydroxyl (OH) or imino (NH) functional silane intermediate, 2) reacting the silane intermediate from step 1) (optionally immediately without isolation) with a diisocyanate (diNCO) to form a silane functional polyurethane; where in step 2) the molar ratio of the total amount OH or NH groups on the silane intermediate of step 1) to the diisocyanate is from 1.8 to 2.2 (preferably about 2.0) and the resultant silane polymer is substantially-free of isocyanate groups thereon.

    Abstract translation: 描述了适合用作可交联涂层组分的硅烷官能低聚物（例如烷氧基硅烷聚氨酯）的方法，该方法包括以下步骤：1）使氨基烷基硅烷与环状碳酸酯，内酯或内酰胺反应， 形成羟基（OH）或亚氨基（NH）官能的硅烷中间体，2）使来自步骤1）的硅烷中间体（任选地立即不分离）与二异氰酸酯（diNCO）反应以形成硅烷官能聚氨酯; 在步骤2）中，步骤1）的硅烷中间体上的OH或NH基团的总量与二异氰酸酯的摩尔比为1.8至2.2（优选约2.0），并且所得的硅烷聚合物基本上不含有异氰酸酯基团 。

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