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公开(公告)号：US4410659A
公开(公告)日：1983-10-18
申请号：US309718
申请日：1981-10-08
申请人： Robert W. Lee , William J. Miloscia
发明人： Robert W. Lee , William J. Miloscia
IPC分类号： C08F255/06 , C08F279/02 , C08F279/04
CPC分类号： C08F255/06 , C08F279/02
摘要： A process for the impact modification of a plastic with a rubbery polymer to form a thermoplastic resin in a reactor extruder is provided. The process includes the steps of dissolving a rubbery polymer in at least one ethylenically unsaturated monomer to form a feed solution, introducing the feed solution into the feed section of a twin screw reactor extruder, heating the feed solution under pressure to a temperature sufficient for polymerization to begin, shearing the feed solution until the solids content formed is equal to at least about twice the rubber content in the feed solution so as to produce a phase inversion product wherein discrete particles of rubber become encapsulated in a continuous phase of plastic polymer formed from the ethylenically unsaturated monomer, thereafter reacting the phase inversion product until at least about 70 weight percent of the feed solution has been converted to a thermoplastic resin, and extruding the said thermoplastic resin through a die. A novel thermoplastic resin is also provided having a uniform distribution of rubber particles dispersed within the plastic phase of the resin, the rubber particles ranging in size of from about 0.01 to 0.50 microns. The process is particularly useful for the preparation of high nitrile and ABS type resins.
摘要翻译： 提供了在反应器挤出机中用橡胶状聚合物对塑料进行冲击改性以形成热塑性树脂的方法。 该方法包括将橡胶状聚合物溶解在至少一种烯键式不饱和单体中以形成进料溶液的步骤，将进料溶液引入双螺杆反应器挤出机的进料段，将进料溶液加压至足以进行聚合的温度 开始，剪切进料溶液，直到形成的固体含量等于进料溶液中橡胶含量的至少约两倍，以便产生相转变产物，其中分散的橡胶颗粒被包封在由 烯键式不饱和单体，然后使相转化产物反应直到进料溶液的至少约70重量％已经转化成热塑性树脂，并通过模头挤出所述热塑性树脂。 还提供了一种新颖的热塑性树脂，其具有分散在树脂的塑性相中的橡胶颗粒的均匀分布，橡胶颗粒的尺寸范围为约0.01至0.50微米。 该方法对于制备高腈和ABS型树脂特别有用。
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公开(公告)号：US4359402A
公开(公告)日：1982-11-16
申请号：US160041
申请日：1980-06-16
CPC分类号： C08F10/00
摘要： The invention herein is directed toward a method for forming a coating on the surface of a catalyst and includes the steps of dissolving a membrane forming compound in a hdyrocarbon solvent, adding the catalyst to the solvent and agitating to form a mixture and finally drying the mixture to form particles of the catalyst having a coating of the membrane forming compound. Particularly suitable for the polymerization of monoolefins are Ziegler-Natta catalyts which can be coated according to the foregoing method. The compounds forming the coating include the silicone greases obtained by mixing a filler material with a dimethylpolysiloxane fluid.
摘要翻译： 本发明涉及一种在催化剂表面上形成涂层的方法，包括以下步骤：将成膜化合物溶解在乙二醇溶剂中，将催化剂加入到溶剂中并搅拌形成混合物，最后将混合物干燥 以形成具有成膜化合物的涂层的催化剂颗粒。 特别适用于单烯烃的聚合是齐格勒 - 纳塔催化剂，其可根据前述方法进行涂布。 形成涂层的化合物包括通过将填料与二甲基聚硅氧烷流体混合而获得的硅氧烷润滑脂。
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3.发明授权Elimination of stabilizer for high nitrile resins by using a latex dewatering extruder for product recovery 失效通过使用胶乳脱水挤出机消除用于高腈树脂的稳定剂，用于产品回收
公开(公告)号：US4239864A
公开(公告)日：1980-12-16
申请号：US66145
申请日：1979-08-13
IPC分类号： C08F279/02 , C08L55/02
CPC分类号： C08F279/02
摘要： Nitrile polymer solids having good stability against loss of impact strength and resin yellowing are recovered from latex with minimal or no use of stabilizers in a screw extruder.
摘要翻译： 在螺杆挤出机中最少或不使用稳定剂的情况下，从胶乳中回收具有良好的耐冲击强度和树脂黄变的稳定性的腈聚合物固体。
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公开(公告)号：US4463137A
公开(公告)日：1984-07-31
申请号：US384980
申请日：1982-06-04
IPC分类号： C08F2/00 , B29B7/00 , B29C47/00 , B29C47/10 , B29C47/40 , B29C47/92 , C08F2/04 , C08F279/02 , C08F291/00 , C08F291/02 , C08F , C08F255/02 , C08F255/06 , C08F283/06
CPC分类号： C08F279/02 , C08F291/02 , Y02P20/143 , Y10S525/942
摘要： A process for the impact modification of a plastic with a rubber polymer to form a thermoplastic resin in a reactor extruder is provided. The process includes the steps of dissolving a rubber polymer in a solvent selected from the group consisting of ethylenically unsaturated monomers and non-polymerizable organic compounds to form a feed solution, introducing the feed solution into the feed section of a twin screw reactor extruder, introducing a separate feed stream containing a material in sufficient amount to precipitate the rubber polymer, heating the feed solution and feed stream under pressure to a temperature sufficient for polymerization to begin, polymerizing the monomers with the rubber polymer in the reactor extruder to form a thermoplastic resin and extruding the thermoplastic resin through a die. A novel ABS thermoplastic resin is also provided having a uniform distribution of rubber particles dispersed within the plastic phase of the resin, the rubber particles ranging in size of from about 0.01 to 0.25 microns. The thermoplastic portion of resin has an acrylonitrile content of more than about 26 weight percent and can have as much as 60 weight percent.
摘要翻译： 提供了一种用于在反应器挤出机中用橡胶聚合物冲击改性以形成热塑性树脂的方法。 该方法包括以下步骤：将橡胶聚合物溶解在选自烯键式不饱和单体和不可聚合有机化合物的溶剂中以形成进料溶液，将进料溶液引入双螺杆反应器挤出机的进料段，引入 单独的进料流，其含有足够量的材料以使橡胶聚合物沉淀，加热进料溶液并在压力下将进料流加热到足以聚合开始的温度，在反应器挤出机中用橡胶聚合物聚合单体以形成热塑性树脂 并通过模具挤出热塑性树脂。 还提供了一种新颖的ABS热塑性树脂，其具有分散在树脂的塑性相中的橡胶颗粒的均匀分布，橡胶颗粒的尺寸范围为约0.01至0.25微米。 树脂的热塑性部分具有大于约26重量％的丙烯腈含量，并且可以具有多达60重量％。
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公开(公告)号：US4322510A
公开(公告)日：1982-03-30
申请号：US197316
申请日：1980-10-15
IPC分类号： C08F279/02
CPC分类号： C08F279/02
摘要： Impact-resistant polymers having excellent color, clarity and low permeability to gases and vapors are prepared by polymerizing in a specified manner an olefinically unsaturated nitrile such as acrylonitrile, an ester of an olefinic acid such as methyl acrylate, or a vinyl ester such as vinyl acetate, and a vinyl aromatic monomer such as styrene optionally in the presence of a diene rubber.
摘要翻译： 通过以指定的方式聚合烯属不饱和腈如丙烯腈，烯属酸如丙烯酸甲酯或乙烯基酯如乙烯基酯制备具有优异的颜色，透明度和对气体和蒸气的低渗透性的耐冲击聚合物 乙酸酯和乙烯基芳族单体如苯乙烯，任选在二烯橡胶的存在下进行。
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