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公开(公告)号：US4184924A
公开(公告)日：1980-01-22
申请号：US861309
申请日：1977-12-16
CPC分类号： B01J19/18 , B01J8/20 , C08F6/003 , B01J2219/00121 , B01J2219/00153 , B01J2219/00155 , B01J2219/00162 , B01J2219/00164 , B01J2219/185 , Y10S203/16
摘要： An apparatus for reducing the vinyl chloride monomer content of polyvinyl chloride resins suspended as a slurry in an aqueous medium. The polyvinyl chloride-water slurry as produced in a conventional suspension resin autoclave, or a resin-water slurry prepared subsequent to suspension polymerization, is placed in a vessel and heated to a suitable temperature for removal of vinyl chloride monomer from the resin. In this operation, the polyvinyl chloride-water slurry is agitated in a vessel and steam is injected directly into the slurry to rapidly heat the slurry up to a minimum temperature of at least about 180.degree. F. The slurry is cooled immediately, or optionally it can be maintained for a period of time at the selected maximum temperature and then rapidly cooled by applying vacuum to the vessel and condensing the vapor phase removed from the vessel. Dried polyvinyl chloride resin produced by this process has been found to have a vinyl chloride monomer content below a detectable limit of 0.5 ppm.
摘要翻译： 一种用于降低在水性介质中作为浆料悬浮的聚氯乙烯树脂的氯乙烯单体含量的装置。 在常规悬浮树脂高压釜中制备的聚氯乙烯 - 水浆料或悬浮聚合后制备的树脂 - 水浆料放入容器中并加热到合适的温度以从树脂中除去氯乙烯单体。 在该操作中，将聚氯乙烯 - 水浆料在容器中搅拌并将蒸汽直接注入到浆料中以将浆料快速加热至至少约180°F的最低温度。浆料立即冷却或任选地 可以在所选择的最高温度下保持一段时间，然后通过对容器施加真空并冷凝从容器去除的气相而快速冷却。 已经发现通过该方法生产的干燥聚氯乙烯树脂的氯乙烯单体含量低于可检测限为0.5ppm。
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公开(公告)号：US4086414A
公开(公告)日：1978-04-25
申请号：US649428
申请日：1976-01-15
CPC分类号： B01J19/18 , B01J8/20 , C08F6/003 , B01J2219/00121 , B01J2219/00153 , B01J2219/00155 , B01J2219/00162 , B01J2219/00164 , B01J2219/185
摘要： A method for reducing the vinyl chloride monomer content of polyvinyl chloride resins suspended as a slurry in an aqueous medium. The polyvinyl chloride-water slurry as produced in a conventional suspension resin autoclave, or a resin-water slurry prepared subsequent to suspension polymerization, is placed in a vessel and heated to a suitable temperature for removal of vinyl chloride monomer from the resin. In this operation, the polyvinyl chloride-water slurry is agitated in a vessel and steam is injected directly into the slurry to rapidly heat the slurry up to a minimum temperature of at least about 180.degree. F. The slurry is cooled immediately, or optionally it can be maintained for a period of time at the selected maximum temperature and then rapidly cooled by applying vacuum to the vessel and condensing the vapor phase removed from the vessel. Dried polyvinyl chloride resin produced by this process has been found to have a vinyl chloride monomer content below a detectable limit of 0.5 ppm.
摘要翻译： 一种用于降低在水性介质中作为浆料悬浮的聚氯乙烯树脂的氯乙烯单体含量的方法。 在常规悬浮树脂高压釜中制备的聚氯乙烯 - 水浆料或悬浮聚合后制备的树脂 - 水浆料放入容器中并加热到合适的温度以从树脂中除去氯乙烯单体。 在该操作中，将聚氯乙烯 - 水浆料在容器中搅拌并将蒸汽直接注入到浆料中以将浆料快速加热至至少约180°F的最低温度。浆料立即冷却或任选地 可以在所选择的最高温度下保持一段时间，然后通过对容器施加真空并冷凝从容器去除的气相而快速冷却。 已经发现通过该方法生产的干燥聚氯乙烯树脂的氯乙烯单体含量低于可检测限为0.5ppm。
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公开(公告)号：US4104459A
公开(公告)日：1978-08-01
申请号：US670239
申请日：1976-03-25
CPC分类号： C08F6/001
摘要： A method for reducing the vinyl chloride monomer content of polyvinyl chloride resins. The polyvinyl chloride-water slurry is placed in a vessel, and heat is applied to the vessel for a sufficient time to raise it to a suitable temperature for removal of vinyl chloride monomer from the resin. The resin slurry is agitated and also subjected to a vacuum to reduce the temperature during the heat stripping step. In a preferred method, the polvinyl chloride-water slurry is agitated in a closed vessel, heat is applied to rapidly heat the slurry to a temperature of at least about 50.degree. C, and vacuum is applied to the vessel. The slurry is then rapidly cooled by suitable means. The slurry is then dewatered and dried. Dried polyvinyl chloride resins produced by this process have been found to have a vinyl chloride monomer content below a detectable limit of about 2.0 ppm.
摘要翻译： 降低聚氯乙烯树脂的氯乙烯单体含量的方法。 将聚氯乙烯 - 水浆料放置在容器中，并将热量施加到容器上足够的时间以将其升高至用于从树脂中除去氯乙烯单体的合适温度。 搅拌树脂浆料并且还进行真空以降低热解步骤期间的温度。 在优选的方法中，将聚氯乙烯 - 水浆料在密闭容器中搅拌，施加热量以将浆料快速加热至至少约50℃的温度，并将真空加到容器上。 然后通过合适的方式快速冷却浆料。 然后将浆液脱水并干燥。 已发现通过该方法生产的干燥聚氯乙烯树脂的氯乙烯单体含量低于约2.0ppm的可检测限。
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公开(公告)号：US4467062A
公开(公告)日：1984-08-21
申请号：US524339
申请日：1983-08-18
申请人： Edwin D. Hornbaker , Jesse D. Jones
发明人： Edwin D. Hornbaker , Jesse D. Jones
IPC分类号： C08K5/3417 , C08L67/02 , C08K5/34
CPC分类号： C08K5/3417 , C08L67/02
摘要： Flame retarded thermoplastic compositions which comprise in intimate admixture: (a) a polyethylene terephthalate, (b) a copolymer of a vinyl aromatic compound and an alpha,beta-unsaturated cyclic anhydride, said copolymer being a rubber-modified graft copolymer or a rubber-free copolymer, (c) a bis-imide flame retardant having at least 8 halogen atoms in the molecule bonded to carbon atoms of aromatic ring systems, (d) optionally, an inorganic synergist for said flame retardant. The compositions preferably contain an impact modifier as well.
摘要翻译： 阻燃热塑性组合物，其包括紧密混合物：（a）聚对苯二甲酸乙二醇酯，（b）乙烯基芳族化合物和α，β-不饱和环酸酐的共聚物，所述共聚物是橡胶改性的接枝共聚物或橡胶 - 游离共聚物，（c）在分子中具有至少8个卤素原子的双酰亚胺阻燃剂，其键合到芳族环体系的碳原子上，（d）任选地，所述阻燃剂的无机增效剂。 组合物也优选含有抗冲改性剂。
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公开(公告)号：US4226757A
公开(公告)日：1980-10-07
申请号：US58156
申请日：1979-07-17
申请人： Jesse D. Jones , Edwin D. Hornbaker
发明人： Jesse D. Jones , Edwin D. Hornbaker
CPC分类号： C08L67/04
摘要： Intimate mechanical blends of polypivalolactone resins of different molecular weights wherein parts molded from the mechanical blends have improved resistance against warpage without diminution of other important physical properties of the higher molecular weight resin.
摘要翻译： 不同分子量的聚异戊内酯树脂的密实机械共混物，其中由机械共混物成型的部分具有改善的抗翘曲性，而不降低较高分子量树脂的其它重要物理性能。
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公开(公告)号：US5006625A
公开(公告)日：1991-04-09
申请号：US374058
申请日：1989-06-30
IPC分类号： C08G77/62
CPC分类号： C08G77/62
摘要： Organosilazanes having higher prepolymerization molecular weights are prepared by the ammonolysis of organohalosilanes at a temperature of about 15.degree.-23.degree. C. Their higher molecular weights facilitate the polymerization of the organosilazanes to preceramic polysilazanes.
摘要翻译： 具有较高预聚分子量的有机硅氮烷通过有机卤代硅烷在约15℃-23℃的温度下进行氨解来制备。它们较高的分子量有助于有机硅氮烷聚合成前陶瓷聚硅氮烷。
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公开(公告)号：US4510280A
公开(公告)日：1985-04-09
申请号：US209843
申请日：1980-11-24
申请人： Jesse D. Jones , Edwin D. Hornbaker
发明人： Jesse D. Jones , Edwin D. Hornbaker
摘要： Blends of (a) a vinyl chloride polymer having a relative viscosity as measured at a concentration of 1 gram per 100 grams of cyclohexanone at 25.degree. C. falling within the range of about 1.50 to about 1.85; (b) a copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic anhydride in which the relative proportions of said compound and said anhydride fall within the range of about 91 to about 70 weight percent of said compound and about 9 to about 30 weight percent of said anhydride; and (c) a tin-containing stabilizer and an impact modifier for vinyl chloride polymers. These blends contain 60 to 40 weight percent of (a) and 40 to 60 weight percent of (b) and have an Izod impact strength (ASTM D 256, Method A) of at least 0.5 foot pound per inch; a heat deflection temperature (ASTM D 648) at 66 psi of at least 75.degree. C.; and a dynamic thermal stability of at least 10 minutes.
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公开(公告)号：US4483949A
公开(公告)日：1984-11-20
申请号：US524869
申请日：1983-08-22
申请人： John Semen , Jesse D. Jones , Edwin D. Hornbaker
发明人： John Semen , Jesse D. Jones , Edwin D. Hornbaker
IPC分类号： C08L67/02
CPC分类号： C08L67/02
摘要： Thermoplastic compositions comprising, in intimate admixture, polyethylene terephthalate, a rubber-free copolymer of or a rubber-modified graft copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic anhydride, a fibrous modifier, and a nucleating agent are disclosed. These compositions display desirable properties, particularly elevated heat deflection temperatures and good surface appearance.Also disclosed is a process for producing articles by injection molding the compositions at a hold pressure of about 5,000 to about 10,000 psi.
摘要翻译： 公开了热塑性组合物，其包括聚对苯二甲酸乙二醇酯，乙烯基芳族化合物和α，β-不饱和环酸酐的橡胶改性的接枝共聚物，纤维改性剂和成核剂的紧密混合物。 这些组合物显示出期望的性能，特别是升高的热变形温度和良好的表面外观。 还公开了一种通过在约5,000至约10,000psi的保持压力下注塑成型组合物来生产制品的方法。
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公开(公告)号：US4472553A
公开(公告)日：1984-09-18
申请号：US430590
申请日：1982-09-30
申请人： Edwin D. Hornbaker , Jesse D. Jones
发明人： Edwin D. Hornbaker , Jesse D. Jones
CPC分类号： C08L67/02
摘要： Thermoplastic compositions comprising, in intimate admixture, 10 to 90 weight percent of polyethylene terephthalate and from 90 to 10 percent of a rubber-modified copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic imide. These compositions display desirable thermal properties, particularly elevated heat deflection temperatures.
摘要翻译： 热塑性组合物包含10至90重量％的聚对苯二甲酸乙二醇酯和90至10重量％的乙烯基芳族化合物和α，β-不饱和环状酰亚胺的橡胶改性的共聚物。 这些组合物显示出期望的热性能，特别是升高的热变形温度。
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公开(公告)号：US4456733A
公开(公告)日：1984-06-26
申请号：US365702
申请日：1982-04-05
申请人： Edwin D. Hornbaker
发明人： Edwin D. Hornbaker
摘要： Polyblends comprising a thermoplastic vinyl chloride polymer and a thermoplastic copolymer of (1) at least one vinyl aromatic monomer, (2) acrylic acid or methacrylic acid, or both, and (3) optionally at least one additional copolymerizable termonomer have useful properties, notably useful heat deflection temperatures under load. The copolymers are preferably rubber-modified graft copolymers.
摘要翻译： 包含热塑性氯乙烯聚合物和（1）至少一种乙烯基芳族单体，（2）丙烯酸或甲基丙烯酸或两者的热塑性共聚物的共混物，和（3）任选的至少一种另外的可共聚的三元单体具有有用的性质，特别是 负载下有用的热变形温度。 共聚物优选为橡胶改性的接枝共聚物。
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