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公开(公告)号:US4771098A
公开(公告)日:1988-09-13
申请号:US935151
申请日:1986-11-25
申请人: Werner Siol , Hubert Rauch , Norbert Sutterlin
发明人: Werner Siol , Hubert Rauch , Norbert Sutterlin
IPC分类号: A61K47/32 , C08F2/00 , C08F2/22 , C08F2/24 , C08F2/26 , C08F20/00 , C08F20/02 , C08F20/06 , C08F20/12 , C08F20/42 , C08F20/44 , C08F120/04 , C08F220/00 , C08F220/04 , C08J9/04
CPC分类号: C08F20/12
摘要: Acrylic resin dispersions are prepared by a monomer addition process in the presence of a free-radical initiator and an emulsifier, wherein a portion of the emulsifier is dissolved in the initial aqueous phase and the remaining portion in the added monomer phase. The new process decreases the formation of coagulates, reduces the required amount of emulsifier, and allows the preparation of dispersions of resins incorporating a large proportion of units derived from water-soluble monomers, such as carboxylic acids.
摘要翻译: 丙烯酸树脂分散体是通过在自由基引发剂和乳化剂存在下的单体加成方法制备的,其中一部分乳化剂溶解在初始水相中,剩余部分溶解在添加的单体相中。 新方法减少凝结物的形成,减少所需量的乳化剂,并且允许制备掺入大量水溶性单体如羧酸的单元的分散体。
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公开(公告)号:US4713434A
公开(公告)日:1987-12-15
申请号:US503171
申请日:1983-06-10
CPC分类号: C08F2/22
摘要: A process for the continuous preparation of aqueous plastic dispersions which comprises emulsifying one or more free-radically polymerizable monomers in an aqueous phase in the presence of an emulsifying agent, in an agitator vessel; initiating the free-radical polymerization of said monomer or monomers in said aqueous phase; and passing said aqueous emulsion of the free-radically polymerizing monomer or monomers through a tubular reactor whose internal surface comprises an (optionally fluorinated)saturated polyolefin.
摘要翻译: 一种用于连续制备水性塑料分散体的方法,其包括在乳化剂存在下在水相中将一种或多种可自由基聚合的单体乳化在搅拌容器中; 引发所述水相中所述单体或单体的自由基聚合; 并将自由基聚合的单体或单体的所述水性乳液通过其内表面包含(任选氟化的)饱和聚烯烃的管式反应器。
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公开(公告)号:US4373056A
公开(公告)日:1983-02-08
申请号:US295544
申请日:1981-08-24
申请人: Siegmund Besecke , Herbert Fink , Norbert Sutterlin , Gerhard Markert , Gunter Schroder , Willi Tilch
发明人: Siegmund Besecke , Herbert Fink , Norbert Sutterlin , Gerhard Markert , Gunter Schroder , Willi Tilch
IPC分类号: C08L33/00 , C08F2/22 , C08F220/58 , C08F246/00 , C08L33/02 , C08L33/04 , C08L41/00
CPC分类号: C08F246/00 , C08F220/58
摘要: An aqueous artificial resin dispersion, comprising an aqueous phase and a water-insoluble disperse phase formed from particles containing a copolymer formed in substantial part from a water insoluble or slightly soluble first monomer, wherein the copolymer additionally is formed from a second monomer of the formula ##STR1## wherein R represents hydrogen or methyl, R' represents hydrogen or an alkyl radical with 1 to 12 C-atoms, R" represents an alkyl radical with 7 to 20 C-atoms, and M represents a proton, an alkali metal ion, or an ammonium ion, with the proviso that the aqueous phase is free of low molecular weight, ionic emulsifying agents. Such dispersions are particularly well suited for continuous emulsion polymerization because of the highly stable monomer emulsions formed by mixtures produced according to the invention.
摘要翻译: 一种水性人造树脂分散体,其包含水相和由非水溶性或微溶性第一单体形成的含有共聚物的颗粒形成的水不溶性分散相,其中所述共聚物另外由式 其中R表示氢或甲基,R'表示氢或具有1至12个C原子的烷基,R“表示具有7至20个碳原子的烷基,M表示质子,碱金属 离子或铵离子,条件是水相不含低分子量离子乳化剂。 由于由根据本发明制备的混合物形成的高度稳定的单体乳液,这种分散体特别适用于连续乳液聚合。
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