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    • 84. 发明授权
    • Impact modifiers prepared from (partially) hydrogenated butadiene-containing dispersions
    • 由(部分)含氢化丁二烯的分散体制备的抗冲改性剂
    • US06566457B2
    • 2003-05-20
    • US09825957
    • 2001-04-05
    • Peter BarghoornVolker SchädlerHeiko MaasNorbert Niessner
    • Peter BarghoornVolker SchädlerHeiko MaasNorbert Niessner
    • C08F804
    • C08F279/02C08F212/06
    • The invention relates to a process for preparing graft rubbers built up from at least one graft core and from at least one graft shell, comprising a) preparing an aqueous dispersion of at least one elastomeric polymer, b) then, to obtain the at least one graft core, selectively hydrogenating ethylenically unsaturated double bonds in the elastomeric polymer, using hydrogen, in the presence of at least one hydrogenation catalyst, where the aqueous dispersion of the elastomeric polymer comprises not more than 20% by volume of an organic solvent, and c) grafting onto the graft core at least one graft shell, and also to the corresponding graft rubbers. The invention further relates to blends comprising a) from 2 to 70% by weight of a graft rubber according to the invention, as component A, b) from 30 to 98% by weight of a thermoplastic polymer or of a mixture of various thermoplastic polymers, as component B, and c) from 0 to 50% by weight of other additives, as component C, where the entirety of components A to C is 100% by weight, based on the blend.
    • 本发明涉及一种用于制备由至少一个接枝芯和至少一个接枝壳构成的接枝橡胶的方法,该方法包括:a)制备至少一种弹性体聚合物的水性分散体,b)然后b)得到至少一个接枝 在至少一种氢化催化剂的存在下,使用氢气在弹性体聚合物中选择性氢化烯键式不饱和双键,其中弹性体聚合物的水分散体包含不超过20体积%的有机溶剂,和c)接枝 在接枝芯上至少一个接枝壳,以及相应的接枝橡胶。本发明还涉及包含a)2-70重量%的根据本发明的接枝橡胶作为组分A,b)从30 至98重量%的热塑性聚合物或作为组分B的各种热塑性聚合物的混合物,和c)0至50重量%的其它添加剂作为组分C,其中全部Co 基于混合物,组分A至C为100重量%。
    • 88. 发明授权
    • Gel permeation chromatographic packing and process for producing same
utilizing suspension polymerization
    • 凝胶渗透色谱填料及其制备方法,利用悬浮聚合法
    • US4338404A
    • 1982-07-06
    • US228505
    • 1981-01-26
    • Yasuyuki TanakaJunichi TakedaKohji Noguchi
    • Yasuyuki TanakaJunichi TakedaKohji Noguchi
    • B01J20/22C08F212/06C08J9/16
    • B01J20/22C08F212/06
    • A novel granular crosslinked copolymer suitable as a high speed liquid chromatograph packing and especially as a gel permeation chromatograph packing is disclosed. In a preferred embodiment of the invention the packing is a copolymer of styrene and divinylbenzene having a volume average particle diameter of about 2 to 50 .mu.m, an exclusive molecular weight for a polystyrene being from about 500 to 20,000, and the weight % (X) of divinylbenzene units based on the entire monomeric units of the copolymer and the gradient (.alpha.) of the calibration curve of the polystyrene are defined by the region bounded by and including the following three lines in rectangular coordinates (.alpha., X) ##EQU1##.alpha.=2.5X=35and a process for preparing the same by suspension polymerization in the presence of an initiator having specific half-life properties is disclosed.
    • 公开了一种适用于高速液相色谱填料,特别是作为凝胶渗透色谱填料的新型粒状交联共聚物。 在本发明的优选实施方案中,填料是苯乙烯和二乙烯基苯的共聚物,其体积平均粒径为约2-50μm,聚苯乙烯的专用分子量为约500至20,000,重量%(X )基于共聚物的全部单体单元的二乙烯基苯单元和聚苯乙烯的校准曲线的梯度(α)由由直角坐标(α,X)定义并包括以下三行的区域限定。 α= 2.5X = 35,并公开了在具有特定半衰期特性的引发剂存在下通过悬浮聚合制备该方法。