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公开(公告)号：US4997864A
公开(公告)日：1991-03-05
申请号：US301052
申请日：1989-01-24
申请人： Julian A. Waters
发明人： Julian A. Waters
摘要： A process for the preparation of composite particle dispersons is disclosed. The composite particles have a core particle 1 surrounded by a second material 2. Normally a core shell particle will be formed and the second material which forms the shell will be a polymer material.The composite particles are formed by mixing a dispersion of polymer particles with pre-formed core material particles. The polymer particles are stabilized relative to one another, and the core material particles are destabilized in the dispersion so that they are able to make contact with the surfaces of the polymer particles. The process takes place at a temperature above the operative glass transition temperature of the polymer, and in the process the polymer spreads over the surface of the core particle so that the core particle is encapsulated.The process will proceed, and composite particles will be formed, when the interfacial energies of the three interfaces (core/polymer: core/liquid: polymer/liquid) and the relative volumes of the core particles and polymer particles are related to one another in accordance with an equation which is set out in the specification.
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公开(公告)号：US4883873A
公开(公告)日：1989-11-28
申请号：US217985
申请日：1988-07-12
IPC分类号： C08L33/06 , C07D233/36 , C07D239/10 , C08F20/34 , C08F20/36 , C08F26/02 , C08F220/10 , C08F220/12 , C08L33/04 , C08L33/14 , C09D133/02 , C09D133/04 , C09D133/14
CPC分类号： C07D239/10 , C07D233/36 , C08F20/36 , C08F26/02
摘要： Polymerizable monomers of structure ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.2-3 alkylene groups, the same or different; A and B are substituted C.sub.2-18 alkyl groups at least one group A or B comprising in a substituent a polymerizable ethylenically unsaturated group; and X=H, C.sub.1-18 alkyl or ##STR2## the monomers being substantially free from non-polymerizable water-soluble contaminants; processes of manufacture and derived polymers including copolymers; and aqueous polymer dispersions, their manufacture and use in coatings including paints.
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公开(公告)号：US4783539A
公开(公告)日：1988-11-08
申请号：US815313
申请日：1986-01-02
IPC分类号： C08L33/06 , C07D233/36 , C07D239/10 , C08F20/34 , C08F20/36 , C08F26/02 , C08F220/10 , C08F220/12 , C08L33/04 , C08L33/14 , C09D133/02 , C09D133/04 , C09D133/14
CPC分类号： C07D239/10 , C07D233/36 , C08F20/36 , C08F26/02
摘要： Polymerizable monomers of structure ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.2-3 alkylene groups, the same or different; A and B are substituted C.sub.2-18 alkyl groups at least one group A or B comprising in a substituent a polymerizable ethylenically unsaturated group; and x=H, C.sub.1-18 alkyl or ##STR2## the monomers being substantially free from non-polymerizable water-soluble contaminants; processes of manufacture and derived polymers including copolymers; and aqueous polymer dispersions, their manufacture and use in coatings including paints.
摘要翻译： 结构
的可聚合单体，其中R1和R2是C2-3亚烷基，相同或不同; A和B是取代的C 2-18烷基，至少一个基团A或B在取代基中包含可聚合的烯属不饱和基团; 和x = H，C 1-18烷基或“IMAGE”，所述单体基本上不含不可聚合的水溶性污染物; 制造方法和衍生的聚合物包括共聚物; 和聚合物水分散体，它们在包括涂料在内的涂料中的制造和使用。 -
公开(公告)号：US5296524A
公开(公告)日：1994-03-22
申请号：US11543
申请日：1993-02-01
申请人： Julian A. Waters
发明人： Julian A. Waters
CPC分类号： C08F265/02 , C08J3/005 , C08J3/03
摘要： A composite particle dispersion is prepared by mixing an aqueous dispersion of polymer particles which will form the particle shell with pre-formed polymer particles which will form the core at a temperature above the glass transition temperature for the shell particles. In order to ensure composite particle formation, certain interfacial energy criteria have to be satisfied for the core particle surface/shell particle surface/liquid interfaces. In order to allow the desired energy relationships to be established, the core particle surfaces include covalently attached ionic groupings which enable a permanent modification of the core particle surface to be made.
摘要翻译： 通过将形成颗粒壳的聚合物颗粒的水性分散体与预先形成的聚合物颗粒混合制备复合颗粒分散体，所述聚合物颗粒将在壳颗粒的玻璃化转变温度以上的温度下形成芯。 为了确保复合颗粒的形成，核心颗粒表面/壳颗粒表面/液体界面必须满足某些界面能量标准。 为了确定所需的能量关系，核心颗粒表面包括共价连接的离子基团，其能够永久改变要制备的核心颗粒表面。
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5.发明授权Manufacture of aqueous polymer dispersions and coating compositions derived from them 失效制备由它们衍生的聚合物水分散体和涂料组合物
公开(公告)号：US4453261A
公开(公告)日：1984-06-05
申请号：US377548
申请日：1982-05-12
CPC分类号： C08F2/16
摘要： Sterically stabilized aqueous polymer depersions of at least 20% solids content are made by free radical-initiated polymerization of monomers in an aqueous medium at a temperature at least 10.degree. C. higher that the glass transition temperature of the polymer to be formed, in the presence of a pre-formed amphipathic block or graft copolymer which contains in the molecule a component solvatable by the medium and another component capable of associating with the polymer particles formed, the conditions being such that there is at no time present a separate monomer phase. The dispersions are useful as a basis of improved aqueous coating compositions.
摘要翻译： 至少20％固体含量的稳定的水性聚合物沉降物是通过在水性介质中在至少10℃的温度下自由基引发的单体聚合而制备的，高于待形成的聚合物的玻璃化转变温度 存在预先形成的两亲性嵌段或接枝共聚物，其在分子中含有可由介质溶解的成分和能够与形成的聚合物颗粒缔合的另一种成分，条件是使得在任何时候都不存在单独的单体相。 分散体可用作改进的水性涂料组合物的基础。
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公开(公告)号：US5534585A
公开(公告)日：1996-07-09
申请号：US295103
申请日：1994-08-24
IPC分类号： C08J3/215 , C09C1/00 , C09C1/36 , C09C3/10 , C09D5/02 , C09D17/00 , C08K3/22 , C08K3/00 , C08K3/10 , C08K9/02
CPC分类号： B82Y30/00 , C08J3/215 , C09C1/0084 , C09C1/3676 , C09C3/10 , C09D17/001 , C09D17/008 , C09D5/028 , C01P2004/03 , C01P2004/50 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2004/84
摘要： The tendency for hard and irregular particles of titanium dioxide pigment to adversely affect the sheen and coin mar resistance of a dried coating into which they have been incorporated is reduced by modifying the particles with polymer particles which have been preformed and are therefore of a more pre-determinable shape and size. The polymer particles are chemically bonded to a polymeric water-soluble compound containing moieties which are adsorbable onto the titanium dioxide particles so that on mixing a colloidally stabilised aqueous dispersion of the polymer particles with a colloidally stabilised aqueous dispersion of titanium dioxide particles, the moieties adsorb onto the titanium dioxide to form a colloidally stable aqueous dispersion of polymer-modified titanium dioxide which is useful in coating compositions.
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公开(公告)号：US4880931A
公开(公告)日：1989-11-14
申请号：US218278
申请日：1988-07-13
IPC分类号： C08L33/06 , C07D233/36 , C07D239/10 , C08F20/34 , C08F20/36 , C08F26/02 , C08F220/10 , C08F220/12 , C08L33/04 , C08L33/14 , C09D133/02 , C09D133/04 , C09D133/14
CPC分类号： C07D239/10 , C07D233/36 , C08F20/36 , C08F26/02
摘要： Polymerizable monomers of structure ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.2-3 alkylene groups, the same or different; A and B are substituted C.sub.2-18 alkyl groups at least one group A or B comprising in a substituent a polymerizable ethylenically unsaturated group; ane X=H, C.sub.1-18 alkyl or ##STR2## the monomers being substantially free from non-polymerizable water-soluble contaminants; processes of manufacture and derived polymers including copolymers; and aqueous polymer dispersions, their manufacture and use in coatings including paints.
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公开(公告)号：US5412019A
公开(公告)日：1995-05-02
申请号：US189279
申请日：1994-01-31
CPC分类号： B82Y30/00 , C08J3/215 , C09C1/0084 , C09C1/3676 , C09C3/10 , C09D17/001 , C09D17/008 , C09D5/028 , C01P2004/03 , C01P2004/50 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2004/84
摘要： The tendency for hard and irregular particles of titanium dioxide pigment to adversely affect the sheen and coin mar resistance of a dried coating into which they have been incorporated is reduced by modifying the particles with polymer particles which have been preformed and are therefore of a more pre-determinable shape and size. The polymer particles are chemically bonded to a polymeric water-soluble compound containing moieties which are adsorbable onto the titanium dioxide particles so that on mixing a colloidally stabilised aqueous dispersion of the polymer particles with a colloidally stabilised aqueous dispersion of titanium dioxide particles, the moieties adsorb onto the titanium dioxide to form a colloidally stable aqueous dispersion of polymer-modified titanium dioxide which is useful in coating compositions.
摘要翻译： 二氧化钛颜料的硬质和不规则颗粒对它们所掺入的干燥涂层的光泽和硬币损伤阻力产生不利影响的趋势通过用预先形成的聚合物颗粒改性颗粒而减少，因此具有更多的前体 可确定的形状和尺寸。 聚合物颗粒化学键合到含有可吸附到二氧化钛颗粒上的部分的聚合物水溶性化合物，使得在将胶体稳定的聚合物颗粒的水分散体与二氧化钛颗粒的胶体稳定的水分散体混合时，该部分被吸附 在二氧化钛上形成可用于涂料组合物的聚合物改性二氧化钛的胶体稳定的水性分散体。
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公开(公告)号：US5210113A
公开(公告)日：1993-05-11
申请号：US555024
申请日：1990-07-20
申请人： Julian A. Waters
发明人： Julian A. Waters
IPC分类号： C08J3/02 , B01J13/00 , C08F265/02 , C08J3/00 , C08J3/03
CPC分类号： C08F265/02 , C08J3/005 , C08J3/03
摘要： A composite particle dispersion is prepared by mixing an aqueous dispersion of polymer particles which will form the particle shell with pre-formed polymer particles which will form the core at a temperature above the glass transition temperature for the shell particles. In order to ensure composite particle formation, certain interfacial energy criteria have to be satisfied for the core particle surface/shell particle surface/liquid interfaces. In order to allow the desired energy relationships to be established, the core particle surfaces include covalently attached ionic groupings which enable a permanent modification of the core particle surface to be made.
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