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142 条记录 (耗时 0.023 秒)

    Dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers
    46.
    发明申请
    Dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers 有权
    基于丙烯酸烷基酯聚合物的颜料或增量剂分散剂

    公开(公告)号：US20040019147A1

    公开(公告)日：2004-01-29

    申请号：US10623685

    申请日：2003-07-21

    申请人： BYK - Chemie GmbH.

    发明人： Karlheinz Haubennestel ,  Wolfgang Pritschins ,  Ulrich Orth

    IPC分类号： C08J003/00

    CPC分类号： C09D17/00 ,  B01F17/005 ,  C08F8/32 ,  C09D7/45 ,  C08F20/12

    摘要： The present invention relates to dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers, wherein at least part of the ester groups of the polymers is reacted to form acid amides, wherein the dispersing agent is obtainable by the aminolysis of ester groups of the polymers by means of amines, wherein, for the aminolysis, at least one amine is used from the group comprising a) amines of general formula NH2nullR1nullNR2R3, wherein R1 is a divalent alkylene radical comprising 2-4 carbon atoms and R2 and R3 are aliphatic and/or alicyclic alkyl radicals which comprise 1-12, preferably 1-6 carbon atoms and which can be the same or different, and b) amines of general formula NH2nullR1-Z, wherein R1 is a divalent alkylene radical comprising 2-4 carbon atoms and Z is a 5- or 6-membered N-containing heterocycle which can comprise up to 2 nitrogen atoms or which can additionally comprise oxygen. The invention also relates to the use of the dispersing agents according to the invention for the production of pigment concentrates and coating media, and to a process for producing the dispersing agents.

    摘要翻译： 本发明涉及基于丙烯酸烷基酯聚合物的颜料或增量剂分散剂，其中聚合物的至少部分酯基反应形成酰胺，其中分散剂可通过 通过胺的聚合物，其中，对于氨解使用至少一种胺，其包含a）通式NH 2 -R 1 -NR 2 R 3的胺，其中R 1， 是包含2-4个碳原子的二价亚烷基，R 2和R 3是包含1-12个，优选1-6个碳原子并且可以相同或不同的脂族和/或脂环族烷基， 和b）通式为NH 2 -R 1 -Z的胺，其中R 1是包含2-4个碳原子的二价亚烷基，Z是可以包含上述的5-或6-元含氮杂环 至2个氮原子，或者可以另外包含氧。 本发明还涉及根据本发明的分散剂用于制备颜料浓缩物和涂料介质的用途，以及生产该分散剂的方法。

    Process for delamination of layered silicates
    50.
    发明授权
    Process for delamination of layered silicates 有权

    公开(公告)号：US11905418B2

    公开(公告)日：2024-02-20

    申请号：US16966924

    申请日：2019-02-04

    申请人： BYK-Chemie GmbH

    发明人： Matthias Daab ,  Josef Breu ,  Andreas Edenharter

    IPC分类号： C01B33/40 ,  C01B33/42 ,  C09C1/30

    CPC分类号： C09C1/3063 ,  C01B33/405 ,  C01B33/425

    摘要： The invention relates to a process for delamination of a layered silicate in an aqueous medium, wherein in a first step a layered silicate is treated with a delamination agent, and in a second step the thus treated layered silicate is contacted with an aqueous medium, whereby the delamination agent is a compound having exactly one positively charged atom, the positively charged atom being selected from the group consisting of nitrogen and phosphorous; contains nf functional groups selected from the group consisting of hydroxyl groups, ether groups, sulfonic acid ester groups and carboxylic acid ester groups, nf being a number from 3 to 10; comprises a total number of carbon atoms nc being from 4 to 12; has a ratio nc/(1+nf) from 1 to 2, wherein nc is the total number of carbon atoms of the delamination agent and nf is the total number of functional groups in the delamination agent as defined under ii.; contains nt atoms selected from the group consisting of carbon, nitrogen, phosphorous, oxygen and sulfur, nt being ≥9; and wherein the delamination agent is used to treat the layered silicate in an amount of at least equal to the cation exchange capacity of the layered silicate. The invention further relates to the thus produced delaminated layered silicates, their use in the production of composite and coating material and as a barrier material. Moreover, the invention relates to compositions containing the thus produced delaminated layered silicates.