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    • 1. 发明申请
    • USE OF HYPERBRANCHED POLYCARBONATES AS A DISPERSING AGENT FOR PIGMENTS
    • 超级聚碳酸酯作为颜料分散剂的用途
    • US20090093589A1
    • 2009-04-09
    • US12299323
    • 2007-05-15
    • Bernd BruchmannAndres Carlos Garcia EspinoMatthias KlugleinWolfgang BestJoachim JesseBenno Sens
    • Bernd BruchmannAndres Carlos Garcia EspinoMatthias KlugleinWolfgang BestJoachim JesseBenno Sens
    • C08L69/00C08G64/02
    • C09B67/0063C08G64/0216C09B67/0066C09B67/009
    • Use of high functionality hyperbranched polycarbonates obtainable bya) preparing one or more different condensation products (K) either bya1) reacting at least one organic carbonate (A) of the general formula RO[(CO)O]nR with at least one aliphatic, aliphatic/aromatic or aromatic alcohol (B) having at least 3 OH groups by elimination of alcohols ROH, where each R is independently a straight chain or branched aliphatic, aromatic-aliphatic or aromatic hydrocarbyl radical having 1 to 20 carbon atoms and the R radicals may also be bonded to each other to form a ring comprising the grouping —O[(CO)O]n—, where n is an integer from 1 to 5,ora2) reacting phosgene, diphosgene or triphosgene with the aliphatic, aliphatic/aromatic or aromatic alcohol (B) to liberate hydrogen chloride,the quantitative ratio of the alcohols (B) to the carbonates (A) or to the phosgenes in the reaction mixture being so chosen that the condensation products (K) comprise on average either one carbonate or carbamoyl chloride group and more than one OH group or one OH group and more than one carbonate or carbamoyl chloride group,andb) intermolecularly reacting the condensation products (K) from step a),as a dispersant for a pigment.
    • 通过a)制备一种或多种不同的缩合产物(K)的高官能度超支化聚碳酸酯的使用,通过a1)使通式RO [(CO)O] n R的至少一种有机碳酸酯(A)与至少一种脂族 ,通过消除醇ROH具有至少3个OH基团的脂族/芳族或芳族醇(B),其中每个R独立地是具有1至20个碳原子的直链或支链脂族,芳族 - 脂族或芳族烃基,R 自由基也可以彼此键合以形成包含分组-O [(CO)O] n - 的环,其中n是1至5的整数,或a2)使光气,双光气或三光气与脂族,脂族 /芳族或芳香族醇(B)以释放氯化氢,反应混合物中醇(B)与碳酸酯(A)或光气体的定量比被选择为使得缩合产物(K)平均包含 一个碳酸盐或卡巴莫 多于一个OH基团或一个OH基团和多于一个碳酸酯或氨基甲酰氯基团,和b)使来自步骤a)的缩合产物(K)与颜料分散反应。
    • 9. 发明申请
    • MODIFIED ZNO NANOPARTICLES
    • 改性ZNO纳米颗粒
    • US20120097068A1
    • 2012-04-26
    • US13379247
    • 2010-06-22
    • Richard RiggsAndrey KarpovSimon SchambonyWolfgang Best
    • Richard RiggsAndrey KarpovSimon SchambonyWolfgang Best
    • C08K5/541C09D191/06C07F3/06B82Y30/00
    • C09C1/043B82Y30/00C01P2004/64C01P2006/60C08K3/22C08K9/06C09D7/62
    • Process for the preparation of modified zinc oxide nanoparticles, which comprises reacting zinc oxide nanoparticles, which are dissolved in a solvent, in the presence of ammonia or amines with a tetraalkyl orthosilicate and optionally with an organosilane, with the proviso that the reaction takes place at a content of less than 5% by weight of water, based on the total amount of solvent and water. Modified zinc oxide nanoparticles which have Si—O-alkyl groups and are soluble in organic solvents, obtainable by this process for the preparation. Liquid or solid formulations which comprise modified ZnO nanoparticles. Inanimate organic materials, for example plastics or coatings, which comprise modified ZnO nanoparticles. Method of stabilizing inanimate organic materials against the effect of light, free radicals or heat, where modified ZnO nanoparticles, which optionally comprise UV absorbers and/or stabilizers as further additives, are added to the materials.
    • 制备改性氧化锌纳米颗粒的方法,其包括将溶于溶剂中的氧化锌纳米颗粒在氨或胺与原硅酸四烷基酯和任选与有机硅烷的存在下反应,条件是反应发生在 基于溶剂和水的总量小于5重量%的水的含量。 具有Si-O-烷基并且可溶于有机溶剂的改性氧化锌纳米颗粒,可通过该制备方法获得。 包含改性ZnO纳米颗粒的液体或固体制剂。 无生命的有机材料,例如塑料或涂层,其包含改性的ZnO纳米颗粒。 稳定无生命有机材料抵抗光,自由基或热的影响的方法,其中任选地包含UV吸收剂和/或稳定剂作为其它添加剂的改性ZnO纳米颗粒被加入材料中。