Water absorbent polymer composition
    91.
    发明授权
    Water absorbent polymer composition 失效
    吸水性聚合物组合物

    公开(公告)号:US4705773A

    公开(公告)日:1987-11-10

    申请号:US866643

    申请日:1986-05-27

    申请人: Bi Le-Khac

    发明人: Bi Le-Khac

    IPC分类号: C08L35/00 C08L53/00 B01J20/26

    CPC分类号: C08L35/00 C08L53/00

    摘要: Water-insoluble, water swellable polymer compositions are disclosed. In one embodiment, the polymer composition comprises a copolymer of styrene and meleic anhydride and a multi arm block copolymer of styrene and ethylene oxide. In a preferred embodiment, the maleic anhydride groups of the anhydride-containing copolymer are treated with a strong base to further enhance absorption capacity.

    摘要翻译: 公开了不溶于水的水溶胀性聚合物组合物。 在一个实施方案中,聚合物组合物包含苯乙烯和马来酸酐的共聚物和苯乙烯和环氧乙烷的多臂嵌段共聚物。 在优选的实施方案中,含酸酐的共聚物的马来酸酐基团用强碱处理以进一步提高吸收能力。

    Thermoplastic moulding compound
    92.
    发明授权
    Thermoplastic moulding compound 失效
    热塑性模塑料

    公开(公告)号:US4661545A

    公开(公告)日:1987-04-28

    申请号:US793344

    申请日:1985-10-31

    CPC分类号: C08K3/32 C08K5/524

    摘要: The invention relates to a thermoplastic moulding compound consisting of:A. at least 95% (wt) of a copolymer consisting of1. 50-95 moles % styrene and/or .alpha.-methylstyrene2. 50-55 moles % unsaturated dicarboxylic anhydrideB. at most 5% (wt) of an phosphite with the general formula of ##STR1## where R represents hydrogen or the residue of an alkyl, cycloalkyl, aryl, alkaryl or aralkyl, while the R substituents need not to be the same and may contain heteroatoms.It has been found that additions of these phosphites to SMA-containing moulding compounds checks the decomposition of SMA, prevents the moulding compound from getting stuck to the processing equipment and consequently reduces corrosion to a high degree.

    摘要翻译: 本发明涉及一种热塑性模塑料,它由以下组成:A.至少95%(wt)由1.50-95摩尔%苯乙烯和/或α-甲基苯乙烯组成的共聚物。50-55摩尔%不饱和二羧酸酐B 至多5%(重量)的通式为的亚磷酸酯,其中R表示氢或烷基,环烷基,芳基,烷芳基或芳烷基的残基,而R取代基不必相同,并且可以 含有杂原子。 已经发现,这些亚磷酸酯添加到含SMA的模塑料中检查SMA的分解,防止模塑料粘附到加工设备上,从而高度降低腐蚀。

    Water absorbent polymer composition
    94.
    发明授权
    Water absorbent polymer composition 失效
    吸水性聚合物组合物

    公开(公告)号:US4616063A

    公开(公告)日:1986-10-07

    申请号:US744872

    申请日:1985-06-17

    申请人: Bi Le-Khac

    发明人: Bi Le-Khac

    IPC分类号: C08L35/00 C08L53/00

    CPC分类号: C08L35/00 C08L53/00

    摘要: Water-insoluble, water swellable polymer compositions are disclosed. In one embodiment, the polymer composition comprises a copolymer of styrene and maleic anhydride and a multi arm block copolymer of styrene and ethylene oxide. In a preferred embodiment, the maleic anhydride groups of the anhydride-containing copolymer are treated with a strong base to further enhance absorption capacity.

    摘要翻译: 公开了不溶于水的水溶胀性聚合物组合物。 在一个实施方案中,聚合物组合物包含苯乙烯和马来酸酐的共聚物和苯乙烯和环氧乙烷的多臂嵌段共聚物。 在优选的实施方案中,含酸酐的共聚物的马来酸酐基团用强碱处理以进一步提高吸收能力。

    Polymer dispersions and their preparation
    95.
    发明授权
    Polymer dispersions and their preparation 失效
    聚合物分散体及其制备

    公开(公告)号:US4528321A

    公开(公告)日:1985-07-09

    申请号:US595137

    申请日:1984-03-30

    摘要: A dispersion of water soluble or water swellable polymer in water immiscible liquid is made by reverse phase polymerization utilizing a dispersing system comprising a polymerization stabilizer and the resulting dispersion, optionally after dehydration, may be distributed into water utilizing a distributing system. The dispersing system or the distributing system, or both, includes at least one non-ionic compound selected from C.sub.6-12 alkanols, C.sub.4-12 alkylene glycol monoethers and their C.sub.1-4 alkanoates, C.sub.6-12 polyalkylene glycol monoethers and their C.sub.1-4 alkanoates and benzyl alcohol. Novel dispersions are made by reverse phase polymerization and, in particular, include a non-ionic compound selected from C.sub.4-12 alkylene glycol monoethers, their C.sub.1-4 alkanoates and C.sub.6-12 polyalkylene glycol monoethers and their C.sub.1-4 alkanoates. When the polymer is water soluble a solution of it in water can be made by distributing the dispersion into water.

    摘要翻译: 通过使用包含聚合稳定剂的分散系统的反相聚合制备水溶性或水溶胀性聚合物在水不混溶液体中的分散体,并且任选脱水后所得的分散体可以使用分配系统分配到水中。 分散系统或分配系统或两者包括至少一种选自C 6-12链烷醇,C 4-12亚烷基二醇单醚及其C 1-4链烷酸酯的非离子化合物,C 6-12聚亚烷基二醇单醚及其C 1-4 链烷酸酯和苄醇。 新型分散体是通过反相聚合制备的,特别是包括选自C 4-12亚烷基二醇单醚,其C 1-4链烷酸酯和C 6-12聚亚烷基二醇单醚及其C 1-4链烷酸酯的非离子化合物。 当聚合物是水溶性时,其溶液可以通过将分散体分配到水中来制备。

    Synergistic mixture of polyurethane and emulsion polymers useful as
thickeners for aqueous systems
    96.
    发明授权
    Synergistic mixture of polyurethane and emulsion polymers useful as thickeners for aqueous systems 失效
    可用作水性体系增稠剂的聚氨酯和乳液聚合物的协同混合物

    公开(公告)号:US4507426A

    公开(公告)日:1985-03-26

    申请号:US455440

    申请日:1983-01-03

    摘要: A thickening composition is made by blending (a) a liquid emulsion polymer made from (i) an addition polymerizable acid, (ii) an addition polymerizable nonionic vinyl monomer, and (iii) a nonionic vinyl surfactant ester; and (b) a urethane polymer having at least three hydrophobic groups, at least two of which are terminal hydrophobic groups, the hydrophobic groups being linked by hydrophilic groups. The thickening compositions of the invention have an excellent combination of properties including leveling, lack of sagging, and lack of syneresis.

    摘要翻译: 通过混合(a)由(i)可加聚酸,(ii)可加聚非离子乙烯基单体和(iii)非离子乙烯基表面活性剂酯制成的液体乳液聚合物来制备增稠组合物; 和(b)具有至少三个疏水基团的氨基甲酸酯聚合物,其中至少两个是末端疏水基团,疏水基团通过亲水基团连接。 本发明的增稠组合物具有优异的组合性质,包括流平,缺乏下垂和脱水收缩缺乏。

    Water-absorbing rubber composition
    100.
    发明授权
    Water-absorbing rubber composition 失效
    吸水橡胶组合物

    公开(公告)号:US4420588A

    公开(公告)日:1983-12-13

    申请号:US329437

    申请日:1981-12-10

    摘要: A water-absorbing rubber composition comprising (A) a 1,3-diene rubber with a crystal or glass region content as measured at an ordinary temperature of 5-50% and (B) a highly water-absorbing resin dispersed in the said rubber, the said highly water-absorbing resin being a product of crosslinking of a polymer which contains as monomer component thereof at least 40 mole percent of an .alpha.,.beta.-unsaturated compound containing 1 or 2 groups each selected from the class consisting of a carboxyl group and a group convertible to a carboxyl group with at least one crosslinking agent selected from the class consisting of a polyfunctional epoxy compound and a polyamine, the resin being in the form of a powder capable of passing through a 20-mesh Tyler screen and absorbing 20-500 times its own weight of distilled water. The composition can absorb water rapidly and produce a high swelling pressure, and has good durability in the swollen state.

    摘要翻译: 一种吸水橡胶组合物,其包含(A)在5-50%的常温下测得的结晶或玻璃区域含量的1,3-二烯橡胶和(B)分散在所述橡胶中的高吸水性树脂 所述高吸水性树脂是聚合物交联的产物,该聚合物的单体组分含有至少40摩尔%的含有1或2个基团的α,β-不饱和化合物,每个选自羧基 以及可以与至少一种选自多官能环氧化合物和多胺的交联剂一起转化为羧基的基团,该树脂为粉末形式,能够通过20目的泰勒筛并吸收20 -500倍自身重量的蒸馏水。 该组合物可以快速吸收水分并产生高溶胀压力,并且在膨胀状态下具有良好的耐久性。